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The EA211 engines are a completely new four-cylinder turbocharged and direct-injection TSI engines. Compared to its predecessor, the EA211 series is significantly more compact, with installation length 50 mm (2.0 in) shorter, thus offering more interior space. The installation position of the engines has also been optimised.
It is related (through several evolutions of engine families) to the EA827 series, indirect-injection diesels, 16 valves, and five-cylinder gasoline engines. Naturally aspirated direct-injection variants are known as Suction Diesel Injection, abbreviated to SDI. Many are offered with a turbocharger, and known as Turbocharged Direct Injection (TDI).
This is due to the fact that the fuel hits the intake valves on the way to the combustion chamber, allowing the detergents in the fuel to keep them clean. However, carbon build-up on intake valves is a problem for engines with direct injection only, as the fuel is injected directly into the combustion chamber.
Pumpe Düse (PD) direct injection (DI): engine-driven vane-type low-pressure fuel lift pump, four camshaft-actuated (via roller rocker arms) high-pressure Bosch 2,200–2,400 bar (31,910–34,810 psi) Unit Injectors with solenoid valve injection nozzles, Bosch EDC 16 or EDC 17 or Siemens VDO SIMOS PPD1 electronic engine control unit (ECU) with ...
When combined with direct injection, the TVS surpasses twin turbochargers in packaging, starting performance and responsiveness Parks, Jim (4 March 2009). "First Hybrid Application Of TVS Supercharger To Appear On 2010 Volkswagen Touareg; Fuel Economy Improved 17- 25 Percent". Eaton.com. Eaton Corporation – press release.
The following articles list Volkswagen Group engines which are available worldwide. These include motor vehicle engines, marine engines sold by Volkswagen Marine [1] and industrial engines sold by Volkswagen Industrial Motor. [2] List of Volkswagen Group petrol engines (current) List of Volkswagen Group diesel engines (current)
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The engine also had a vacuum actuated variable intake manifold, controlled by the ECU via a valve part of the engines vacuum system. The valve is opened and closed depending on engine load, engine speed and throttle position. This allows the engine to take advantage of pressure waves created by the intake valves opening and closing.
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