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Carbureted engines often use low-pressure mechanical pumps that are mounted on the engine. Fuel injected engines use either electric fuel pumps mounted inside the fuel tank (for lower pressure manifold injection systems) [1] or high-pressure mechanical pumps mounted on the engine (for high-pressure direct injection systems).
fully demand-controlled and returnless; – fuel tank–mounted low-pressure fuel pump, Fuel Stratified Injection (FSI): inlet camshaft double-cam driven Hitachi single-piston high-pressure injection pump maintaining a pressure between 30 and 110 bar (440 and 1,600 psi) in the stainless steel common rail fuel rail, four combustion chamber sited ...
Bosch 2,000 bar (29,010 psi) common rail (CR) (one rail per cylinder bank) direct injection: with two chain-driven high-pressure fuel pumps, fuel cooler for return line, twelve combustion chamber-sited eight-hole (0.12 mm (0.0047 in)) piezo injectors with multi-pulse injection (up to five injection operations per piston cycle, including pre ...
fully demand-controlled and returnless; fuel tank–mounted low-pressure fuel pump; Fuel Stratified Injection (FSI): two-inlet double-cam–driven single-piston high-pressure injection pumps maintaining a pressure of 30 to 100 bar (435 to 1,450 psi) in the two stainless steel common fuel distribution rails (one rail per cylinder bank), six ...
Injection pump for a 12-cylinder diesel engine. An injection pump is the device that pumps fuel into the cylinders of a diesel engine.Traditionally, the injection pump was driven indirectly from the crankshaft by gears, chains or a toothed belt (often the timing belt) that also drives the camshaft.
It uses a gear-type lift pump mounted on the passenger-side cylinder head driven by the camshaft; it is used to supply the high-pressure pump with sufficient pressure. Bosch CP3 high-pressure pump is used driven by the timing belt. Max rail pressure is 1350bar. Watercooled return line fuel cooler with an additional cooling pump (runs all the ...