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Scroll-type Supercharger
The scroll-type supercharger is a scroll compressor used as a positive displacement orbiting-spiral supercharger. It is a compromise between the more rugged rotating lobe, and the more efficient sliding vane type superchargers, and is considered to offer the highest potential in regard to efficiency, noise and pressure fluctuation. History The basic concept of the scroll-type supercharger was invented by Léon Creux of France in 1905, originally for aircraft use, though Creux did consider it as a possible form of steam engine. However, Creux's supercharger failed due to the relatively poor casting techniques available at the time. This type of supercharger has not seen widespread use in the aviation role, but has been used on a small number of automotive applications. Description The moving parts of the supercharger is a disc-shaped displacer with identical spirals (or scrolls) projecting from each side, and manufactured from light alloy to reduce inertia. A pair of fixed scro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two Moving Spirals Scroll Pump
2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many cultures. Evolution Arabic digit The digit used in the modern Western world to represent the number 2 traces its roots back to the Indic Brahmic script, where "2" was written as two horizontal lines. The modern Chinese and Japanese languages (and Korean Hanja) still use this method. The Gupta script rotated the two lines 45 degrees, making them diagonal. The top line was sometimes also shortened and had its bottom end curve towards the center of the bottom line. In the Nagari script, the top line was written more like a curve connecting to the bottom line. In the Arabic Ghubar writing, the bottom line was completely vertical, and the digit looked like a dotless closing question mark. Restoring the bottom line to its original horizontal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Polo
The Volkswagen Polo is a supermini car (B-segment) produced by the German car manufacturer Volkswagen since 1975. It is sold in Europe and other markets worldwide in hatchback, saloon, and estate variants throughout its production run. History As of 2018, six separate generations of the Polo have been produced, usually identified by a "Series" or "Mark" number. Some generations were facelifted midway through production, with the updated versions known unofficially by an addition of the letter F to the mark number, e.g. Mk2F. Some members of the automotive press and some enthusiasts consider the facelifts to be separate models, so have used the unofficial designations Polo Mk1 to Mk7 for previous generations. Each Polo model is also identified by a two- or three-character Volkswagen Group ''Typ'' number. Official VW Polo history describes Mark I to Mark IV using either Roman numerals or Arabic numerals, with facelifted variants known as "Phase II" models. The body style has bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scroll Compressor
A scroll compressor (also called ''spiral compressor'', scroll pump and scroll vacuum pump) is a device for compressing air or refrigerant. It is used in air conditioning equipment, as an automobile supercharger (where it is known as a scroll-type supercharger) and as a vacuum pump. Many residential central heat pump and air conditioning systems and a few automotive air conditioning systems employ a scroll compressor instead of the more traditional rotary, reciprocating, and wobble-plate compressors. A scroll compressor operating in reverse is a scroll expander, and can generate mechanical work. History Léon Creux first patented a scroll compressor in 1905 in France and the US (Patent number 801182). Creux invented the compressor as a rotary steam engine concept, but the metal casting technology of the period was not sufficiently advanced to construct a working prototype, since a scroll compressor demands very tight tolerances to function effectively. In the 1905 patent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intercooler
An intercooler is a heat exchanger used to cool a gas after compression. Often found in turbocharged engines, intercoolers are also used in air compressors, air conditioners, refrigeration and gas turbines. Internal combustion engines Most commonly used with turbocharged engines, an intercooler is used to counteract the heat of compression and heat soak in the pressurised intake air. By reducing the temperature of the intake air, the air becomes denser (allowing more fuel to be injected, resulting in increased power) and less likely to suffer from pre-ignition or knocking. Additional cooling can be provided by externally spraying a fine mist onto the intercooler surface, or even into the intake air itself, to further reduce intake charge temperature through evaporative cooling. Intercoolers can vary dramatically in size, shape and design, depending on the performance and space requirements of the system. Many passenger cars use either ''front-mounted intercoolers'' l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Engine Of The Year
The International Engine of the Year is an annual competition for automotive industry internal combustion engines and electric motors, judged by a panel of automobile journalists from around the world. It is organised by UKi Media & Events' Automotive Magazines. The competition was started in 1999. The award is determined by the panellists using "subjective driving impressions and technical knowledge, and took into account characteristics such as fuel economy, noise, smoothness, performance and driveability".International Engine of the Year Rules and Scoring http://www.ukimediaevents.com/engineoftheyear/rules-scoring.php Annual winners Old categories Rankings Number of times the following makes have received the award: See also * List of motor vehicle awards *Ward's 10 Best Engines *PACE Award *World Car of the Year *International Car of the Year The International Car of the Year (ICOTY) awards are one of several annual "car of the year" awards around the world for new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Golf
The Volkswagen Golf () is a compact car/small family car (C-segment) produced by the German automotive manufacturer Volkswagen since 1974, marketed worldwide across eight generations, in various body configurations and under various nameplates – including as the Volkswagen Rabbit in the United States and Canada (Mk1 and Mk5), and as the Volkswagen Caribe in Mexico (Mk1). The original Golf Mk1 was a front-engined, front-wheel drive replacement for the air-cooled, rear-engined, rear-wheel drive Volkswagen Beetle. Historically, the Golf is Volkswagen's best-selling model and is among the world's top three best-selling models, with more than 35 million units sold as of 2019. Initially, most Golfs were 3-door hatchbacks. Other variants include a 5-door hatchback, estate (Variant, from 1993), convertible (Cabriolet and Cabrio, 1979–2002, Cabriolet, 2011–present), and a Golf-based saloon, called the Volkswagen Jetta, Volkswagen Vento (from 1992) or Volkswagen Bora (from 1999 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Passat
The Volkswagen Passat is a series of D-segment, large family cars manufactured and marketed by the Germany, German automobile manufacturer Volkswagen since 1973, and now in its eighth generation. It has been marketed variously as the Dasher, Santana, Quantum, Magotan, Corsar and Carat. The successive generations of the Passat carry the Volkswagen internal designations B1, B2, etc. A "four-door coupé" variant of the Passat was released in the North American market in 2008 as the Volkswagen Passat CC, Passat CC, which was then renamed to Volkswagen CC. In January 2011, Volkswagen debuted another Passat model, internally designated Volkswagen New Midsize Sedan or NMS, that would be manufactured at the Volkswagen Chattanooga Assembly Plant. SAIC-Volkswagen also manufactures the Passat NMS in its Nanjing factory. The Volkswagen Passat (NMS), Passat NMS is sold in the North America, South Korea, China, and Middle East. The separate B8 Passat model entered production in Europe in 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Corrado
The Volkswagen Corrado is a compact four passenger (2+2), three door, front-engine, front-wheel-drive liftback coupe marketed by Volkswagen from 1988 until 1995, and manufactured by Karmann in Osnabrück, Germany. Designed by Herbert Schäfer, the Corrado overlapped and eventually superseded Volkswagen's Scirocco model. 97,521 Corrados were manufactured over the seven year production run. Overview The Corrado's floorpan is based on the A2 platform (i.e. Mark 2 Golf/Jetta) and, with the exception of VR6 models, all versions use the subframes, suspension, steering and braking components from the Volkswagen A2 platform model range. The VR6 uses suspension components from the A3 model range, including the rear axle assembly and some parts of the A3's 'plus' type front axle assembly. The subsequent wider front wheel track of the Corrado VR6 necessitated the fitting of new front wings with wider wheel arches and liners along with a new front bumper assembly. The Corrado is noted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen G60 Engine
The Volkswagen G60 and G40 were inline-four cylinder automobile petrol engines, which uses a specific method of forced induction - by way of a scroll-type supercharger. The G60 engine was formerly manufactured by the German automaker Volkswagen Group, and was installed in a limited number of their 'hot hatch' cars from their Volkswagen Passenger Cars marque from August 1988 to July 1993. A smaller G40 engine of identical design had earlier been installed in the Mk2 Volkswagen Polo GT G40 from August 1986 to July 1994. Design and specifications The G60 is a internal combustion engine, from a cylinder bore of , and a piston stroke of . Its cylinder block is constructed from grey cast iron, and its cylinder head is cast aluminium alloy, with additional post-production heat treatment. The crankcase contains a forged steel crankshaft which runs in five main bearings, and cast pistons with increased size gudgeon pins. It has two valves per cylinder (eight valves in total), whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrol 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 e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen Polo G40
The Volkswagen Polo Mk2 and Polo Mk2F were available as supercharged G40 models - called the Volkswagen Polo G40 (sometimes also called Volkswagen Polo GT G40, Volkswagen Polo G-40, or simply Volkswagen Polo G). Mk2 At the heart of the Polo GT G40 was its 1.3 litre G40 engine (engine ID code: PY). It displaced from a cylinder bore of , and a piston stroke of . The G40s 'G-Lader' supercharger had a displacer width of , hence the "G40" name. This G40 engine produced a maximum power output of at 6,000 rpm, and torque of at 3,600 rpm. Stopping power came from uprated front disc brakes, now radially ventilated, sized at in diameter by thick, with ATE single-piston sliding calipers. Standard roadwheels were 13x5.5 ET38 silver 'Hockenheim' alloy wheels with 175/60 H13 tyres. Polo G40 Original Specification Performance f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volkswagen
Volkswagen (),English: , . abbreviated as VW (), is a German Automotive industry, motor vehicle manufacturer headquartered in Wolfsburg, Lower Saxony, Germany. Founded in 1937 by the German Labour Front under the Nazi Party and revived into a global brand post-World War II by the British Army Officer Ivan Hirst, it is known for the iconic Volkswagen Beetle, Beetle and serves as the flagship brand of the Volkswagen Group, the largest automotive manufacturer by worldwide sales in 2016 and 2017. The group's biggest market is in Automotive industry in China, China, which delivers 40 percent of its sales and profits. Its name is derived from the German-language terms and , translating to "people's car" when combined. History 1932–1940: People's Car project Volkswagen was established in 1937 by the German Labour Front (''Deutsche Arbeitsfront'') in Berlin. In the early 1930s, cars were a luxury – most Germans could afford nothing more elaborate than a motorcycle and only one ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
