Patent ID: 6814057
Filing Date: 2004-11-09
Classification: F02M

Abstract:
A fuel injection system (1; 30; 32; 34; 35; 37; 38) for internal combustion engines, comprisingat least one stroke-controlled injector (10), a high pressure working medium source (5), a pressure booster (9) having a movable piston (26) connected between the at least one injector (10) and the high-pressure working medium source (5), the movable piston (26) dividing a primary chamber (13), which is connectable to the high-pressure working medium source (5), from a pressure chamber (8), which communicates with the at least one injector (10) and is filled with fuel, the pressure booster (9) generating a first fuel system pressure in the injector (10), which pressure is used for injection, and means for furnishing a further, second fuel system pressure, which means can be used for injection without activating the pressure booster (9), further comprising means for generating the second fuel system pressure from the first fuel system pressure, which first fuel system pressure is compressed by the pressure booster (9).