98-851: The Hyundai Getz is a supermini manufactured and marketed by Hyundai from 2002 to 2011 in three- and five-door hatchback body styles over a single generation — and marketed globally except in the United States, Canada and China. The Getz was marketed as the Hyundai Click in South Korea , Hyundai Getz Prime in India , Hyundai TB (for "Think Basic") in Japan, Inokom Getz in Malaysia , or Dodge Brisa in Venezuela . After
196-414: A carcinogen or "probable carcinogen" and is known to increase the risk of heart and respiratory diseases. In principle, a diesel engine does not require any sort of electrical system. However, most modern diesel engines are equipped with an electrical fuel pump, and an electronic engine control unit. However, there is no high-voltage electrical ignition system present in a diesel engine. This eliminates
294-527: A 1.1-litre, a 1.3-litre and a 1.5-litre, and one diesel option, a 1.5-litre three-cylinder unit, licensed from VM Motori . When the Getz was introduced to the market in Australia it was brought out with only the 1.5l petrol G4EC engine. After the facelift in 2005, a new 1.4-litre petrol engine replaced the 1.3-litre unit, and a new 1.5-litre diesel with variable geometry turbocharger and two power output levels,
392-503: A crash. In late 2008, the i20 was introduced, replacing the Getz in most markets. In Europe, the Getz co-existed with the i20 until it was completely phased out in 2011. The Getz continued to be sold in the Australian market until December 2010. In India, the car was discontinued due to falling demand as compared to the warm response received by the i20 and the introduction of the new Euro 4 emission norms from May 2010. In mid-2011,
490-452: A diesel engine drops at lower loads, however, it does not drop quite as fast as the Otto (spark ignition) engine's. Diesel engines are combustion engines and, therefore, emit combustion products in their exhaust gas . Due to incomplete combustion, diesel engine exhaust gases include carbon monoxide , hydrocarbons , particulate matter , and nitrogen oxides pollutants. About 90 per cent of
588-549: A dimensions on par or slightly larger than traditional B-segment cars, and often are built on the same platform as B-segment hatchbacks or saloons. B-segment SUVs are usually excluded by analysts from traditional B-segment car sales. 22 percent of SUV global sales were contributed by B-segment SUVs in 2019. One of the first mass-market electric B-segment cars in Europe was the Renault Zoe , released in 2012. Global sales of
686-516: A few degrees releasing the pressure and is controlled by a mechanical governor, consisting of weights rotating at engine speed constrained by springs and a lever. The injectors are held open by the fuel pressure. On high-speed engines the plunger pumps are together in one unit. The length of fuel lines from the pump to each injector is normally the same for each cylinder in order to obtain the same pressure delay. Direct injected diesel engines usually use orifice-type fuel injectors. Electronic control of
784-407: A finite area, and the net output of work during a cycle is positive. The fuel efficiency of diesel engines is better than most other types of combustion engines, due to their high compression ratio, high air–fuel equivalence ratio (λ) , and the lack of intake air restrictions (i.e. throttle valves). Theoretically, the highest possible efficiency for a diesel engine is 75%. However, in practice
882-638: A formal car classification term, eventually being adopted in European Commission classification as the B-segment. The 1990 Renault Clio and 1983 Fiat Uno were significant models in the supermini or the B-segment, being the recipients of the European Car of the Year award. The Clio replaced the long-running Renault 5, although the latter remained in production until 1996. In 1993,
980-452: A fuel consumption of 519 g·kW ·h . However, despite proving the concept, the engine caused problems, and Diesel could not achieve any substantial progress. Therefore, Krupp considered rescinding the contract they had made with Diesel. Diesel was forced to improve the design of his engine and rushed to construct a third prototype engine. Between 8 November and 20 December 1895, the second prototype had successfully covered over 111 hours on
1078-409: A full set of valves, two-stroke diesel engines have simple intake ports, and exhaust ports (or exhaust valves). When the piston approaches bottom dead centre, both the intake and the exhaust ports are "open", which means that there is atmospheric pressure inside the cylinder. Therefore, some sort of pump is required to blow the air into the cylinder and the combustion gasses into the exhaust. This process
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#17327973841951176-602: A global sales of 910,839 units that year, in which 54 percent was contributed by its European sales. It took the world number one spot from the Toyota Corolla at 906,953 sales. Safety features have improved for the cars in the segment. In 1995, both petrol and diesel B-segment vehicles had only around 40 percent of the listed safety options installed (side impact bars, driver/passenger airbag, side airbag, ABS , electronic braking system, stability control), whereas by 2010 they were averaging over 90 percent. This represents
1274-403: A low-pressure loop at the bottom of the diagram. At 1 it is assumed that the exhaust and induction strokes have been completed, and the cylinder is again filled with air. The piston-cylinder system absorbs energy between 1 and 2 – this is the work needed to compress the air in the cylinder, and is provided by mechanical kinetic energy stored in the flywheel of the engine. Work output is done by
1372-532: A more efficient replacement for stationary steam engines . Since the 1910s, they have been used in submarines and ships. Use in locomotives , buses, trucks, heavy equipment , agricultural equipment and electricity generation plants followed later. In the 1930s, they slowly began to be used in some automobiles . Since the 1970s energy crisis , demand for higher fuel efficiency has resulted in most major automakers, at some point, offering diesel-powered models, even in very small cars. According to Konrad Reif (2012),
1470-669: A more expensive offering. Examples include the Ford Fiesta ST , Hyundai i20 N , Peugeot 208 GTi , Suzuki Swift Sport , Toyota GR Yaris , Volkswagen Polo GTI , among others. B-segment MPV (also called mini MPV or B-MPV) are taller and/or longer derivatives of B-segment hatchbacks with an emphasis in interior space and practicality. Examples are the Citroën C3 Picasso , Fiat 500L , and Ford B-Max . B-segment crossovers or SUVs (also called subcompact crossover SUV, small SUV, or B-SUV ) are crossovers/SUVs that has
1568-681: A notable exception being the EMD 567 , 645 , and 710 engines, which are all two-stroke. The power output of medium-speed diesel engines can be as high as 21,870 kW, with the effective efficiency being around 47-48% (1982). Most larger medium-speed engines are started with compressed air direct on pistons, using an air distributor, as opposed to a pneumatic starting motor acting on the flywheel, which tends to be used for smaller engines. Medium-speed engines intended for marine applications are usually used to power ( ro-ro ) ferries, passenger ships or small freight ships. Using medium-speed engines reduces
1666-535: A petroleum engine with glow-tube ignition in the early 1890s; he claimed against his own better judgement that his glow-tube ignition engine worked the same way Diesel's engine did. His claims were unfounded and he lost a patent lawsuit against Diesel. Other engines, such as the Akroyd engine and the Brayton engine , also use an operating cycle that is different from the diesel engine cycle. Friedrich Sass says that
1764-415: A poorer power-to-mass ratio than an equivalent petrol engine. The lower engine speeds (RPM) of typical diesel engines results in a lower power output. Also, the mass of a diesel engine is typically higher, since the higher operating pressure inside the combustion chamber increases the internal forces, which requires stronger (and therefore heavier) parts to withstand these forces. The distinctive noise of
1862-408: A regular trunk-piston. Two-stroke engines have a limited rotational frequency and their charge exchange is more difficult, which means that they are usually bigger than four-stroke engines and used to directly power a ship's propeller. Four-stroke engines on ships are usually used to power an electric generator. An electric motor powers the propeller. Both types are usually very undersquare , meaning
1960-504: A significant improvement in vehicle safety over the period, despite petrol and diesel B-segment vehicles averaging an inflation-adjusted price increase of 6 percent and 15 percent respectively. Studies from the European Union and JATO has found that the average maximum power output of B-segment vehicles has increased by 40 percent between 1995 and 2010, while the average overall vehicle weight only increased by around 20 percent in
2058-435: A simple mechanical injection system since exact injection timing is not as critical. Most modern automotive engines are DI which have the benefits of greater efficiency and easier starting; however, IDI engines can still be found in the many ATV and small diesel applications. Indirect injected diesel engines use pintle-type fuel injectors. Early diesel engines injected fuel with the assistance of compressed air, which atomised
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#17327973841952156-536: A single orifice injector. The pre-chamber has the disadvantage of lowering efficiency due to increased heat loss to the engine's cooling system, restricting the combustion burn, thus reducing the efficiency by 5–10%. IDI engines are also more difficult to start and usually require the use of glow plugs. IDI engines may be cheaper to build but generally require a higher compression ratio than the DI counterpart. IDI also makes it easier to produce smooth, quieter running engines with
2254-527: A single speed for long periods. Two-stroke engines use a combustion cycle which is completed in two strokes instead of four strokes. Filling the cylinder with air and compressing it takes place in one stroke, and the power and exhaust strokes are combined. The compression in a two-stroke diesel engine is similar to the compression that takes place in a four-stroke diesel engine: As the piston passes through bottom centre and starts upward, compression commences, culminating in fuel injection and ignition. Instead of
2352-426: A small chamber called a swirl chamber, precombustion chamber, pre chamber or ante-chamber, which is connected to the cylinder by a narrow air passage. Generally the goal of the pre chamber is to create increased turbulence for better air / fuel mixing. This system also allows for a smoother, quieter running engine, and because fuel mixing is assisted by turbulence, injector pressures can be lower. Most IDI systems use
2450-530: A source of radio frequency emissions (which can interfere with navigation and communication equipment), which is why only diesel-powered vehicles are allowed in some parts of the American National Radio Quiet Zone . To control the torque output at any given time (i.e. when the driver of a car adjusts the accelerator pedal ), a governor adjusts the amount of fuel injected into the engine. Mechanical governors have been used in
2548-400: A spark plug ( compression ignition rather than spark ignition ). In the diesel engine, only air is initially introduced into the combustion chamber. The air is then compressed with a compression ratio typically between 15:1 and 23:1. This high compression causes the temperature of the air to rise. At about the top of the compression stroke, fuel is injected directly into the compressed air in
2646-570: A special trim level called the Getz Cross features SUV design elements such as extended wheel arches, roof rack, raised suspension and larger wheels. It was offered with the 1.4-litre and 1.6-litre petrol engines, or with the 1.5-litre diesel engine. In South Africa the SR sport edition was also introduced in 2010 and was manufactured up until 2012. This edition included full leather interior, bodykit, special SR rims and badges among others. In 2004,
2744-417: A swirl chamber or pre-chamber are called indirect injection (IDI) engines. Most direct injection diesel engines have a combustion cup in the top of the piston where the fuel is sprayed. Many different methods of injection can be used. Usually, an engine with helix-controlled mechanic direct injection has either an inline or a distributor injection pump. For each engine cylinder, the corresponding plunger in
2842-422: A two-stroke ship diesel engine has a single-stage turbocharger with a turbine that has an axial inflow and a radial outflow. In general, there are three types of scavenging possible: Crossflow scavenging is incomplete and limits the stroke, yet some manufacturers used it. Reverse flow scavenging is a very simple way of scavenging, and it was popular amongst manufacturers until the early 1980s. Uniflow scavenging
2940-461: Is a combustion engine that is more efficient than a diesel engine, but due to its mass and dimensions, is unsuitable for many vehicles, including watercraft and some aircraft . The world's largest diesel engines put in service are 14-cylinder, two-stroke marine diesel engines; they produce a peak power of almost 100 MW each. Diesel engines may be designed with either two-stroke or four-stroke combustion cycles . They were originally used as
3038-423: Is a simplified and idealised representation of the events involved in a diesel engine cycle, arranged to illustrate the similarity with a Carnot cycle . Starting at 1, the piston is at bottom dead centre and both valves are closed at the start of the compression stroke; the cylinder contains air at atmospheric pressure. Between 1 and 2 the air is compressed adiabatically – that is without heat transfer to or from
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3136-431: Is also avoided compared with non-direct-injection gasoline engines, as unburned fuel is not present during valve overlap, and therefore no fuel goes directly from the intake/injection to the exhaust. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) can reach effective efficiencies of up to 55%. The combined cycle gas turbine (Brayton and Rankine cycle)
3234-403: Is approximately 5 MW. Medium-speed engines are used in large electrical generators, railway diesel locomotives , ship propulsion and mechanical drive applications such as large compressors or pumps. Medium speed diesel engines operate on either diesel fuel or heavy fuel oil by direct injection in the same manner as low-speed engines. Usually, they are four-stroke engines with trunk pistons;
3332-429: Is called scavenging . The pressure required is approximately 10-30 kPa. Due to the lack of discrete exhaust and intake strokes, all two-stroke diesel engines use a scavenge blower or some form of compressor to charge the cylinders with air and assist in scavenging. Roots-type superchargers were used for ship engines until the mid-1950s, however since 1955 they have been widely replaced by turbochargers. Usually,
3430-492: Is controlled by manipulating the air-fuel ratio (λ) ; instead of throttling the intake air, the diesel engine relies on altering the amount of fuel that is injected, and thus the air-fuel ratio is usually high. The diesel engine has the highest thermal efficiency (see engine efficiency ) of any practical internal or external combustion engine due to its very high expansion ratio and inherent lean burn, which enables heat dissipation by excess air. A small efficiency loss
3528-404: Is done on the system to which the engine is connected. During this expansion phase the volume of the gas rises, and its temperature and pressure both fall. At 4 the exhaust valve opens, and the pressure falls abruptly to atmospheric (approximately). This is unresisted expansion and no useful work is done by it. Ideally the adiabatic expansion should continue, extending the line 3–4 to the right until
3626-413: Is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the cylinder so that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of fuel is uneven; this is called a heterogeneous air-fuel mixture. The torque a diesel engine produces
3724-464: Is more complicated to make but allows the highest fuel efficiency; since the early 1980s, manufacturers such as MAN and Sulzer have switched to this system. It is standard for modern marine two-stroke diesel engines. So-called dual-fuel diesel engines or gas diesel engines burn two different types of fuel simultaneously , for instance, a gaseous fuel and diesel engine fuel. The diesel engine fuel auto-ignites due to compression ignition, and then ignites
3822-459: Is the largest segment in Europe by volume, accounting for 20 percent of total car sales in 2020 according to JATO Dynamics . B-segment cars include hatchback, saloon , estate , coupe / convertible , MPV , and crossover / SUV body styles. The European segments are not based on size or weight criteria. In practice, B-segment cars have been described as having a length of approximately 3.7–4.2 m (146–165 in), and may vary depending on
3920-652: The A0-class in China, and the supermini category for B-segment hatchbacks in Great Britain. Category:Subcompact cars ( 306 ) Diesel engine The diesel engine , named after the German engineer Rudolf Diesel , is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression ; thus,
4018-631: The Accent -based Brisa that debuted in that market in April 2002. In recent years, Hyundai Getz where factory equipped with a CNG kit, allowing dual fuel use of petrol or natural gas. Assembly of the Getz ended in 2014 in Venezuela. In Malaysia , the Getz was locally assembled as the Inokom Getz. The model offers both manual and automatic transmission with a single 1.4-litre petrol engine option. In
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4116-507: The EU average for diesel cars at the time accounted for half of newly registered cars. However, air pollution and overall emissions are more difficult to control in diesel engines compared to gasoline engines, and the use of diesel auto engines in the U.S. is now largely relegated to larger on-road and off-road vehicles . Though aviation has traditionally avoided using diesel engines, aircraft diesel engines have become increasingly available in
4214-666: The Nissan Micra (K11) , became the first Japanese car company to be receive the European Car of the Year award. In 1999, the Toyota Yaris received the European Car of the Year award, and was noted for its high roof which allowed for improved interior space. Another notable model is the Opel Corsa , which was the best-selling car in the world in the year 1998 thanks to its extensive international presence. It recorded
4312-722: The United Kingdom , and the United States for "Method of and Apparatus for Converting Heat into Work". In 1894 and 1895, he filed patents and addenda in various countries for his engine; the first patents were issued in Spain (No. 16,654), France (No. 243,531) and Belgium (No. 113,139) in December 1894, and in Germany (No. 86,633) in 1895 and the United States (No. 608,845) in 1898. Diesel
4410-637: The 1.3-litre and 1.6-litre petrol versions, and after the facelift also for the 1.4-litre, and five-speed manual options for all engines. In the United Kingdom, the trim levels offered were GSI, CDX and Sport, while in New Zealand, they were XD and XE. In Australia, the trim levels were XL, GL and FX. After the facelift, the XL and GL were dropped, while the FX was replaced by the sporty SXi trim, The rest of
4508-416: The 21st century. Since the late 1990s, for various reasons—including the diesel's inherent advantages over gasoline engines, but also for recent issues peculiar to aviation—development and production of diesel engines for aircraft has surged, with over 5,000 such engines delivered worldwide between 2002 and 2018, particularly for light airplanes and unmanned aerial vehicles . In 1878, Rudolf Diesel , who
4606-697: The B-segment term, emerged in the UK in the 1970s, as car manufacturers sought a new design to surpass the influential Mini , launched in 1959, and journalists attempted to categorise such a vehicle. The car which is widely regarded as the first modern supermini is the Autobianchi A112 , launched in 1969. It was later followed by the Fiat 127 , Renault 5 , VW Polo and Honda Civic , which are similar in concept and size. These supermini or B-segment cars were considered to feature better comfort and convenience, with
4704-454: The Carnot cycle. Diesel was also introduced to a fire piston , a traditional fire starter using rapid adiabatic compression principles which Linde had acquired from Southeast Asia . After several years of working on his ideas, Diesel published them in 1893 in the essay Theory and Construction of a Rational Heat Motor . Diesel was heavily criticised for his essay, but only a few found
4802-687: The Click was replaced in the South Korean market by the Hyundai Accent WIT . In Japan, where it was known as the TB, the car was discontinued shortly before Hyundai officially announced the departure of its passenger car division from the market in late-2009. Countries that do not offer the i20 or Accent hatchback have designated the i10 as the Getz's replacement. In addition, Hyundai owned subsidiary, Kia and its Picanto series has also replaced
4900-529: The Getz in the small car market. Hyundai produced 1,390,084 variants of the Getz between 2002 and 2011. 153,000 were sold in Australia. The Getz was Hyundai's best-selling vehicle in Europe from 2003 to 2008. Supermini The B-segment is the second smallest of the European segments for passenger cars between the A-segment and C-segment , and commonly described as "small cars". The B-segment
4998-508: The Getz was tested by the Euro NCAP , scoring an overall rating of four-stars. The model tested featured driver and passenger airbags , seat-mounted thorax and head airbags, and front seat belts with pre-tensioners and load limiters. It was described as a "reasonably balanced performance" and "generally good" in-car protection for children. It was noted, however, that the design of the car did little to protect pedestrians . An additional point
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#17327973841955096-685: The Zoe achieved the 50,000 unit milestone in June 2016, and 200,000 units by March 2020. Other manufacturers followed suit; Groupe PSA introduced the Peugeot e-208 and Opel Corsa-e in 2019, while Honda followed with the low-volume Honda e , and Mini with their Mini Electric . The B-segment is considered as the European equivalent to the subcompact category widely known in North America,
5194-400: The amount of fuel injected into the engine. Due to the amount of air being constant (for a given RPM) while the amount of fuel varies, very high ("lean") air-fuel ratios are used in situations where minimal torque output is required. This differs from a petrol engine, where a throttle is used to also reduce the amount of intake air as part of regulating the engine's torque output. Controlling
5292-583: The autumn of 2005, the facelifted Getz debuted at the Frankfurt Motor Show with revised front and rear styling, rounded headlights, redesigned grille, an updated 1.5-litre diesel engine (in Europe), a new 1.4-litre petrol engine, upgraded dash and interior fascia and trim. In the United Kingdom, air conditioning and side airbags were fitted to the CDX as standard equipment. The facelifted model
5390-400: The body styles, markets, and era. In some cases, the same car may be differently positioned depending on the market. The Euro NCAP vehicle class called "Supermini" also includes smaller A-segment cars alongside B-segment cars. In Britain, the term "supermini" is more widely used for B-segment hatchbacks. The term was developed in the 1970s as an informal categorisation, and by 1977
5488-470: The bore is smaller than the stroke. Low-speed diesel engines (as used in ships and other applications where overall engine weight is relatively unimportant) often have an effective efficiency of up to 55%. Like medium-speed engines, low-speed engines are started with compressed air, and they use heavy oil as their primary fuel. Four-stroke engines use the combustion cycle described earlier. Most smaller diesels, for vehicular use, for instance, typically use
5586-448: The combustion chamber, the droplets continue to vaporise from their surfaces and burn, getting smaller, until all the fuel in the droplets has been burnt. Combustion occurs at a substantially constant pressure during the initial part of the power stroke. The start of vaporisation causes a delay before ignition and the characteristic diesel knocking sound as the vapour reaches ignition temperature and causes an abrupt increase in pressure above
5684-418: The combustion chamber. This may be into a (typically toroidal ) void in the top of the piston or a pre-chamber depending upon the design of the engine. The fuel injector ensures that the fuel is broken down into small droplets, and that the fuel is distributed evenly. The heat of the compressed air vaporises fuel from the surface of the droplets. The vapour is then ignited by the heat from the compressed air in
5782-425: The compressed gas. Combustion and heating occur between 2 and 3. In this interval the pressure remains constant since the piston descends, and the volume increases; the temperature rises as a consequence of the energy of combustion. At 3 fuel injection and combustion are complete, and the cylinder contains gas at a higher temperature than at 2. Between 3 and 4 this hot gas expands, again approximately adiabatically. Work
5880-452: The compression ratio in a spark-ignition engine where fuel and air are mixed before entry to the cylinder is limited by the need to prevent pre-ignition , which would cause engine damage. Since only air is compressed in a diesel engine, and fuel is not introduced into the cylinder until shortly before top dead centre ( TDC ), premature detonation is not a problem and compression ratios are much higher. The pressure–volume diagram (pV) diagram
5978-473: The compression required for his cycle: By June 1893, Diesel had realised his original cycle would not work, and he adopted the constant pressure cycle. Diesel describes the cycle in his 1895 patent application. Notice that there is no longer a mention of compression temperatures exceeding the temperature of combustion. Now it is simply stated that the compression must be sufficient to trigger ignition. In 1892, Diesel received patents in Germany , Switzerland ,
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#17327973841956076-416: The concept of air-blast injection from George B. Brayton , albeit that Diesel substantially improved the system. On 17 February 1894, the redesigned engine ran for 88 revolutions – one minute; with this news, Maschinenfabrik Augsburg's stock rose by 30%, indicative of the tremendous anticipated demands for a more efficient engine. On 26 June 1895, the engine achieved an effective efficiency of 16.6% and had
6174-424: The cost of smaller ships and increases their transport capacity. In addition to that, a single ship can use two smaller engines instead of one big engine, which increases the ship's safety. Low-speed diesel engines are usually very large in size and mostly used to power ships . There are two different types of low-speed engines that are commonly used: Two-stroke engines with a crosshead, and four-stroke engines with
6272-564: The diesel engine is Diesel's "very own work" and that any "Diesel myth" is " falsification of history ". Diesel sought out firms and factories that would build his engine. With the help of Moritz Schröter and Max Gutermuth [ de ] , he succeeded in convincing both Krupp in Essen and the Maschinenfabrik Augsburg . Contracts were signed in April 1893, and in early summer 1893, Diesel's first prototype engine
6370-449: The diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug -ignition of the air-fuel mixture, such as a petrol engine ( gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas ). Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation , "EGR"). Air
6468-417: The efficiency is much lower, with efficiencies of up to 43% for passenger car engines, up to 45% for large truck and bus engines, and up to 55% for large two-stroke marine engines. The average efficiency over a motor vehicle driving cycle is lower than the diesel engine's peak efficiency (for example, a 37% average efficiency for an engine with a peak efficiency of 44%). That is because the fuel efficiency of
6566-408: The environment – by the rising piston. (This is only approximately true since there will be some heat exchange with the cylinder walls .) During this compression, the volume is reduced, the pressure and temperature both rise. At or slightly before 2 (TDC) fuel is injected and burns in the compressed hot air. Chemical energy is released and this constitutes an injection of thermal energy (heat) into
6664-463: The four-stroke cycle. This is due to several factors, such as the two-stroke design's narrow powerband which is not particularly suitable for automotive use and the necessity for complicated and expensive built-in lubrication systems and scavenging measures. The cost effectiveness (and proportion of added weight) of these technologies has less of an impact on larger, more expensive engines, while engines intended for shipping or stationary use can be run at
6762-616: The fuel and forced it into the engine through a nozzle (a similar principle to an aerosol spray). The nozzle opening was closed by a pin valve actuated by the camshaft . Although the engine was also required to drive an air compressor used for air-blast injection, the efficiency was nonetheless better than other combustion engines of the time. However the system was heavy and it was slow to react to changing torque demands, making it unsuitable for road vehicles. A unit injector system, also known as "Pumpe-Düse" ( pump-nozzle in German) combines
6860-700: The fuel injection transformed the direct injection engine by allowing much greater control over the combustion. Common rail (CR) direct injection systems do not have the fuel metering, pressure-raising and delivery functions in a single unit, as in the case of a Bosch distributor-type pump, for example. A high-pressure pump supplies the CR. The requirements of each cylinder injector are supplied from this common high pressure reservoir of fuel. An Electronic Diesel Control (EDC) controls both rail pressure and injections depending on engine operating conditions. The injectors of older CR systems have solenoid -driven plungers for lifting
6958-405: The fuel pump measures out the correct amount of fuel and determines the timing of each injection. These engines use injectors that are very precise spring-loaded valves that open and close at a specific fuel pressure. Separate high-pressure fuel lines connect the fuel pump with each cylinder. Fuel volume for each single combustion is controlled by a slanted groove in the plunger which rotates only
7056-461: The gaseous fuel. Such engines do not require any type of spark ignition and operate similar to regular diesel engines. The fuel is injected at high pressure into either the combustion chamber , "swirl chamber" or "pre-chamber," unlike petrol engines where the fuel is often added in the inlet manifold or carburetor . Engines where the fuel is injected into the main combustion chamber are called direct injection (DI) engines, while those which use
7154-419: The injection needle, whilst newer CR injectors use plungers driven by piezoelectric actuators that have less moving mass and therefore allow even more injections in a very short period of time. Early common rail system were controlled by mechanical means. The injection pressure of modern CR systems ranges from 140 MPa to 270 MPa. An indirect diesel injection system (IDI) engine delivers fuel into
7252-553: The injector and fuel pump into a single component, which is positioned above each cylinder. This eliminates the high-pressure fuel lines and achieves a more consistent injection. Under full load, the injection pressure can reach up to 220 MPa. Unit injectors are operated by a cam and the quantity of fuel injected is controlled either mechanically (by a rack or lever) or electronically. Due to increased performance requirements, unit injectors have been largely replaced by common rail injection systems. The average diesel engine has
7350-596: The last quarter of 2009, Inokom launched a limited edition Getz SE, which featured leather interior, sporty body kit and grill and side mirrors with indicators. Only 300 units of this variant were produced. Between 2008 and 2014, Australian company Blade Electric Vehicles sold a fully electric conversion of the Getz called the Blade Electron. Built in Victoria, it was the first commercially-available electric car in Australia and retailed for AU$ 52,000. In New Zealand,
7448-541: The launch of its successors, the i20 (2008) in Europe and Accent RB (2010) in South Korea, the Getz continued to be marketed worldwide, with production ending in 2011. The name Getz reportedly stands for "achieved by desirability, a link-up of GET and IT, or "GET IT." After debuting as a concept at the 2001 Tokyo Motor Show as the Hyundai TB , the Getz premiered globally at the 2002 Geneva Motor Show . It
7546-476: The mistake that he made; his rational heat motor was supposed to utilise a constant temperature cycle (with isothermal compression) that would require a much higher level of compression than that needed for compression ignition. Diesel's idea was to compress the air so tightly that the temperature of the air would exceed that of combustion. However, such an engine could never perform any usable work. In his 1892 US patent (granted in 1895) #542846, Diesel describes
7644-978: The models were referred to as "Getz". Half-way through 2006, the SXi was dropped, leaving just the base Getz with the option of 1.4 or 1.6-litre engines. In early 2008, the Getz 1.4 was named S, and the 1.6 was named SX. The top level generally included, among other features, front and side airbags , anti-lock braking system (ABS) with electronic brakeforce distribution (EBD), remote central locking with alarm, 14-inch alloy wheels, front fog lights, air conditioning , heated electric door mirrors, electric tilt and slide sunroof , electric front and rear windows, CD player and trip computer . The 1.6-litre version featured 15-inch alloy wheels. As optional features there were leather upholstery, metallic paint or satellite navigation. In Australia, electronic stability control (ESC), traction control (TSC), bluetooth handsfree and MP3 player with USB connectivity were also offered. From 2006,
7742-534: The past, however electronic governors are more common on modern engines. Mechanical governors are usually driven by the engine's accessory belt or a gear-drive system and use a combination of springs and weights to control fuel delivery relative to both load and speed. Electronically governed engines use an electronic control unit (ECU) or electronic control module (ECM) to control the fuel delivery. The ECM/ECU uses various sensors (such as engine speed signal, intake manifold pressure and fuel temperature) to determine
7840-480: The piston (not shown on the P-V indicator diagram). When combustion is complete the combustion gases expand as the piston descends further; the high pressure in the cylinder drives the piston downward, supplying power to the crankshaft. As well as the high level of compression allowing combustion to take place without a separate ignition system, a high compression ratio greatly increases the engine's efficiency. Increasing
7938-403: The piston-cylinder combination between 2 and 4. The difference between these two increments of work is the indicated work output per cycle, and is represented by the area enclosed by the pV loop. The adiabatic expansion is in a higher pressure range than that of the compression because the gas in the cylinder is hotter during expansion than during compression. It is for this reason that the loop has
8036-417: The pollutants can be removed from the exhaust gas using exhaust gas treatment technology. Road vehicle diesel engines have no sulfur dioxide emissions, because motor vehicle diesel fuel has been sulfur-free since 2003. Helmut Tschöke argues that particulate matter emitted from motor vehicles has negative impacts on human health. The particulate matter in diesel exhaust emissions is sometimes classified as
8134-408: The pressure falls to that of the surrounding air, but the loss of efficiency caused by this unresisted expansion is justified by the practical difficulties involved in recovering it (the engine would have to be much larger). After the opening of the exhaust valve, the exhaust stroke follows, but this (and the following induction stroke) are not shown on the diagram. If shown, they would be represented by
8232-526: The safety and surefootedness of the Mini's front-wheel drive/transverse engine package. That meant the addition of a hatchback and folding rear seats. The oil crisis in the 1970s was also argued to increase supermini market share. In 1976, Ford launched the Ford Fiesta which became popular. The segment began to be more popular in the 1980s. By the mid-1980s, the term supermini had become established as
8330-470: The same period. Fuel consumption has decreased by around 20 percent, and power-to-weight ratio has increased by 15 percent. Hatchback is the most popular body style for the segment. While the majority is equipped with five doors, many European-oriented hatchbacks was offered with both three-door and five-door versions, with 31 percent of European customers opting for three-door B-segment hatchbacks by 2007. The share has decreased to 13 percent in 2016 due to
8428-554: The shift of market preference which is moving towards prioritizing usability and practicality. As the result, by late 2010s, a number of manufacturers had stopped offering three-door versions of its B-segment hatchback models in Europe. Other body styles currently available in the segment in Europe are saloon (example: Dacia Logan ), estate (example: Dacia Logan MCV and Škoda Fabia Combi ), and coupe/convertible (example: Mini Cooper Cabrio/Convertible ). Performance-oriented versions of B-segment hatchbacks were developed and sold as
8526-544: The test bench. In the January 1896 report, this was considered a success. In February 1896, Diesel considered supercharging the third prototype. Imanuel Lauster , who was ordered to draw the third prototype " Motor 250/400 ", had finished the drawings by 30 April 1896. During summer that year the engine was built, it was completed on 6 October 1896. Tests were conducted until early 1897. First public tests began on 1 February 1897. Moritz Schröter 's test on 17 February 1897
8624-890: The timing of the start of injection of fuel into the cylinder is similar to controlling the ignition timing in a petrol engine. It is therefore a key factor in controlling the power output, fuel consumption and exhaust emissions. There are several different ways of categorising diesel engines, as outlined in the following sections. Günter Mau categorises diesel engines by their rotational speeds into three groups: High-speed engines are used to power trucks (lorries), buses , tractors , cars , yachts , compressors , pumps and small electrical generators . As of 2018, most high-speed engines have direct injection . Many modern engines, particularly in on-highway applications, have common rail direct injection . On bigger ships, high-speed diesel engines are often used for powering electric generators. The highest power output of high-speed diesel engines
8722-507: The vehicle was distributed at Hyundai dealerships The first generation Blade Electron model had a top speed of 120 km/h (75 mph) and a range of 120 kilometres (75 mi) on a full charge. Blade Electric Vehicles had an agreement with Hyundai to honor the warranty on original components that were not modified during the conversion process. Around 50 vehicles were produced, and four were still believed to be in operation as of 2019. At launch there were three petrol engines available,
8820-532: Was a student at the "Polytechnikum" in Munich , attended the lectures of Carl von Linde . Linde explained that steam engines are capable of converting just 6–10% of the heat energy into work, but that the Carnot cycle allows conversion of much more of the heat energy into work by means of isothermal change in condition. According to Diesel, this ignited the idea of creating a highly efficient engine that could work on
8918-488: Was attacked and criticised over several years. Critics claimed that Diesel never invented a new motor and that the invention of the diesel engine is fraud. Otto Köhler and Emil Capitaine [ de ] were two of the most prominent critics of Diesel's time. Köhler had published an essay in 1887, in which he describes an engine similar to the engine Diesel describes in his 1893 essay. Köhler figured that such an engine could not perform any work. Emil Capitaine had built
9016-477: Was built in Augsburg . On 10 August 1893, the first ignition took place, the fuel used was petrol. In winter 1893/1894, Diesel redesigned the existing engine, and by 18 January 1894, his mechanics had converted it into the second prototype. During January that year, an air-blast injection system was added to the engine's cylinder head and tested. Friedrich Sass argues that, it can be presumed that Diesel copied
9114-880: Was designed at Hyundai's European engineering center in Frankfurt, Germany, and was released in three- and five-door hatchback body styles. The Getz was manufactured at the factory in Ulsan , South Korea, between 2002 and 2011, and at the Hyundai Motor India factory in Chennai , India, between 2004 and 2009. It was also assembled for the local markets in Barcelona , Venezuela ( MMC Automotriz ), in Kulim , Malaysia ( Inokom ) and in Taipei , Taiwan ( SYM Motors ). In
9212-525: Was introduced in place of the three-cylinder option. The Diesel engines never made it to Australia. But the introduction of the 1.4 L DOHC and the 1.6 L DOHC replaced the 1.5 L motor. The 1.4 L Engine though very efficient and reliable was no power plant when it came to using the a/c whilst climbing a hill. Especially in the automatic transmission However, the availability of engine options varied depending on market. There were four-speed automatic transmission options, with overdrive and torque converter , for
9310-563: Was not offered in Venezuela (where it marketed as the Dodge Brisa ), the local division of Hyundai continuing to sell the pre-2005 model. In Venezuela , the Hyundai Getz was assembled locally featuring its 1.6 Litre petrol engine, mated to a 5-speed manual or 4-speed automatic transmission. Also the Getz was badge-engineered as the Dodge Brisa in its 1.3-litre, 4-speed manual transmission configuration. This new model replaced
9408-532: Was scored for the seat belt reminder that is provided for the driver. In 2008, the Getz was also assessed with four stars out of five by the Australasian NCAP , based on the test performed by the Euro NCAP. In Australia and New Zealand, the 2002–04 Getz was assessed in the 2006 Used Car Safety Ratings (UCSR) as providing "significantly worse than average" protection for its occupants in the event of
9506-424: Was the main test of Diesel's engine. The engine was rated 13.1 kW with a specific fuel consumption of 324 g·kW ·h , resulting in an effective efficiency of 26.2%. By 1898, Diesel had become a millionaire. The characteristics of a diesel engine are The diesel internal combustion engine differs from the gasoline powered Otto cycle by using highly compressed hot air to ignite the fuel rather than using
9604-647: Was used regularly by the British newspaper The Times . By the mid-1980s, it had widespread use in Britain. In Germany, the term "small cars" ( German : Kleinwagen ) has been endorsed by the Federal Motor Transport Authority ( Kraftfahrt-Bundesamt [ de ] , KBA) equivalent to the B-segment. The segment accounts for 15.1 percent of total car registrations in the country in 2020. The term supermini, which precedes
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