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Renault Savanna
The Renault 21 is a large family car produced by French automaker Renault between 1986 and 1994. It was also sold in North America initially through American Motors dealers as the Renault Medallion and later through Jeep-Eagle dealers as the Eagle Medallion. A total of 2,096,000 units were produced. The Renault 21 sedan was launched in the beginning of 1986, as the successor to the successful Renault 18, and this was followed a few months later by the seven seater station wagon, the R21 Nevada, marketed as the Savanna in the United Kingdom. In 1987, ''What Car?'' awarded the Renault 21 GTS ''Best Family Saloon''. The Renault 21 Savanna was awarded '' Car of the Year'', as well as ''Best Family Estate''. Design Unusually, the Renault 21 was offered with disparate engine configurations. The 1.7 litre version featured a transverse engine and transmission, but Renault had no gearbox suitable for a more powerful transverse engine: accordingly, faster versions featured longitudina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault
Groupe Renault ( , , , also known as the Renault Group in English; legally Renault S.A.) is a French multinational automobile manufacturer established in 1899. The company produces a range of cars and vans, and in the past has manufactured trucks, tractors, tanks, buses/coaches, aircraft and aircraft engines, and autorail vehicles. According to the Organisation Internationale des Constructeurs d'Automobiles, in 2016 Renault was the ninth biggest automaker in the world by production volume. By 2017, the Renault–Nissan–Mitsubishi Alliance had become the world's biggest seller of light vehicles. Headquartered in Boulogne-Billancourt, near Paris, the Renault group is made up of the namesake Renault marque and subsidiaries, Alpine, Renault Sport (Gordini), Automobile Dacia from Romania, and Renault Samsung Motors from South Korea. Renault has a 43.4% stake with several votes in Nissan of Japan, and used to have a 1.55% stake in Daimler AG of Germany, it was sold off in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liftback
A liftback is a variation of hatchback with a sloping roofline between 45 and 5 degrees. Traditional hatchback designs usually have a 90 to 46 degree slope on the tailgate or rear door. As such the liftback is essentially a hatchback with a more sloping roof, similar to sedans/saloons from a styling perspective. Some liftbacks may also have an appearance similar to a coupe but with a tailgate hinged at the roof that is lifted to open. The liftback design combines the versatility of a regular hatchback and aerodynamics of a sedan. Liftbacks often offer more boot space over the regular hatchback and sedan but not the station wagon/estate variant of the same model. __TOC__ History In 1973, Toyota invented the "liftback" term to describe the sloping roofline variation of the Celica with a tailgate hinged at the roof, as opposed to the regular hardtop coupe variation which was introduced three years earlier. As its roofline slope is uninterrupted, it can also be defined as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbodiesel
The term turbo-diesel, also written as turbodiesel and turbo diesel, refers to any diesel engine equipped with a turbocharger. As with other engine types, turbocharging a diesel engine can significantly increase its efficiency and power output, especially when used in combination with an intercooler. Turbocharging of diesel engines began in the 1920s with large marine and stationary engines. Trucks became available with turbo-diesel engines in the mid-1950s, followed by passenger cars in the late 1970s. Since the 1990s, the compression ratio of turbo-diesel engines has been dropping. Principle Diesel engines are typically well suited to turbocharging due to two factors: * A "lean" air–fuel ratio, caused when the turbocharger supplies excess air into the engine, is not a problem for diesel engines, because the torque control is dependent on the mass of fuel that is injected into the combustion chamber (i.e. air-fuel ratio), rather than the quantity of the air-fuel mixture. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after 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, the diesel engine is a so-called 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 plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbocharger
In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a turbocharger is powered by the kinetic energy of the exhaust gasses, whereas a supercharger is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. History Prior to the invention of the turbocharger, |
Multi-valve
In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better breathing and may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power. Multi-valve rationale Multi-valve engine design A multi-valve engine design has three, four, or five valves per cylinder to achieve improved performance. Any four-stroke internal combustion engine needs at least two valves per cylinder: one for ''intake'' of air (and often fuel), and another for ''exhaust'' of combustion gases. Adding more valves increases valve area and improves the flow of intake and exhaust gases, thereby enhancing combustion, volumetric efficiency, and power output. Multi-valve geometry allows the spark plug to be ideally located within the combustion chamber for optimal flame propagation. Multi-valve engines tend to have smaller valves that have lower reciprocating mass, which can red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douvrin Engine
The Douvrin family was an all-aluminum inline-four automobile engine designed in the early 1970s and produced from 1977 to 1996 by ''Compagnie Française de Mécanique'', a joint-venture between PSA and Renault located in the town of Douvrin in northern France. This engine is designed by the engineer Jean-Jacques His (father of Formula 1 engines from Renault and Ferrari). It was produced in the same factory as the ''PRV'' V6, which also is sometimes known outside France as the "Douvrin" V6. The Douvrin engine is also referred to as the ZDJ/ZEJ engine by Peugeot, and as the J-type engine by Renault. Construction This engine had an aluminium alloy block with cast iron liners, and an aluminium alloy head with one overhead camshaft driven by belt. Its displacement varied from 1995 to 2165 cc. This engine should not be confused with the PSA-Renault X-Type engine whose displacement varied from 954 to 1360 cc and had a gearbox integrated to the block. The Douvrin engine on the contrary, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault F-Type Engine
F Renault engine (F for ''fonte'', French for cast iron) is an automotive internal combustion engine, four-stroke, inline-four engine bored directly into the iron block, water cooled, with overhead camshaft driven by a timing belt, and with an aluminum cylinder head, developed and produced by Renault in the early '80s, making its appearance on the Renault 9 and 11. This engine is available in petrol and diesel versions, with 8 or 16 valves. History In December 1982, the Renault Board proposed a new diesel engine with for the Renault 9. Known as "F8M", the new engine was designed by engineer George Douin and his team and broke with tradition by featuring no removable cylinder liners, thanks to advances in metals technology that significantly slow the wear of rubbing mechanical parts. The new 4- cylinder unit adopted an overhead camshaft driven by a toothed belt that also controls the diesel injection pump. A second belt rotates the alternator and water pump, while a vacuum pum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inline-four Engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the exceptions of the flat-four engines produced by Subaru and Porsche) and the layout is also very common in motorcycles and other machinery. Therefore the term "four-cylinder engine" is usually synonymous with straight-four engines. When a straight-four engine is installed at an inclined angle (instead of with the cylinders oriented vertically), it is sometimes called a slant-four. Between 2005 and 2008, the proportion of new vehicles sold in the United States with four-cylinder engines rose from 30% to 47%. By the 2020 model year, the share for light-duty vehicles had risen to 59%. Design A four-stroke straight-four engine always has a cylinder on its power stroke, unlike engines with fewer cylinders where there is no power stroke occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault Cléon-Fonte Engine
The Cléon-Fonte engine, also known as the Sierra engine or under the code "C-engine" or "C-Type" (C for Cléon, where it was built, ''fonte'' being French for cast iron), is a family of four-cylinder, Straight engine, inline automobile internal combustion engine, engines manufactured continuously by Renault and its subsidiary Automobile Dacia, Dacia from 1962 to 2004. For about three decades it was a mainstay in Renault's subcompact, compact models, before being gradually replaced by the Renault Energy engine, E-type engine from the late 1980s onward. The C-type is an overhead valve, water-cooled design, with a 5-bearing crankshaft, a chain driven, side-positioned camshaft operating the valves via pushrods and Rocker arm, rockers, and an aluminum cylinder head. History When production started in 1962, this (then) modern engine was initially called the "Sierra"; it was soon renamed the "Cléon-Fonte", taking its name from the ultra-modern Renault factory where it was first manuf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline Engine
A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E10'' and ''E85''). Most petrol engines use spark ignition, unlike diesel engines which typically use compression ignition. Another key difference to diesel engines is that petrol engines typically have a lower compression ratio. Design Thermodynamic cycle Most petrol engines use either the four-stroke Otto cycle or the two-stroke cycle. Petrol engines have also been produced using the Miller cycle and Atkinson cycle. Layout Most petrol-powered piston engines are straight engines or V engines. However, flat engines, W engines and other layouts are sometimes used. Wankel engines are classified by the number of rotors used. Compression ratio Cooling Petrol engines are either air-cooled or water-cooled. Ignition Petrol en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D-segment
The D-segment is the 4th category of the European segments for passenger cars, and is described as "large cars". It is equivalent to the Euro NCAP "large family car" size class, and the present-day definition of the mid-size car category used in North America. Compact executive cars are part of the D-segment size category. D-segment sales represent approx. 7% of the market in 2010s. Characteristics Most D-segment cars are sedans/saloons or wagons/estates but hatchbacks, and coupes have been common. Pricing and specification of D-segment cars can vary greatly, from basic low-cost transport to more luxurious and expensive models. Current models In 2020 the fifteen highest selling D-segment cars in Europe were the BMW 3 Series, Volkswagen Passat, Tesla Model 3, Mercedes-Benz C-Class, Audi A4/S4/RS4, Škoda Superb, Volvo S60/V60, Peugeot 508, Audi A5/S5/RS5, Ford Mondeo, Opel/Vauxhall Insignia, BMW 4 Series, Volkswagen Arteon, Toyota Camry and Polestar 2. 100.000 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
