Patent ID: 6820594
Filing Date: 2004-11-23
Classification: F02M

Abstract:
In a valve for controlling a communication in a high-pressure fluid system, in particular in a fuel injection system for an internal combustion engine, having a valve member (72) that is guided displaceably in the direction of its longitudinal axis (73) and protrudes into a valve pressure chamber (77), in which high pressure prevails at least intermittently, and that in the valve pressure chamber (77), on a face end extending transversely to its longitudinal axis (73), has a sealing face (81), with which it cooperates with a valve seat (79), extending transversely to its longitudinal axis (73), for at least extensively closing off an opening (78), surrounding by the valve seat (79), from the valve pressure chamber (77), the improvement comprisingan annular face (84) surrounding the sealing face (81) on the face end of the valve member (72) and disposed with slight spacing (A) from the valve seat (79) in the direction of its longitudinal axis (73) when the valve member (72) with its sealing face (81) is resting on the valve seat (79), and a plurality of apertures (86) formed in the valve member (72) and distributed over its circumference, the opening (78) communicating through the apertures (86) with the valve pressure chamber (77) when the valve member (72), with its sealing face (71), is resting on the valve seat (79).