Patent ID: 6269795
Filing Date: 2001-08-07
Classification: F02M

Abstract:
A fuel injection valve for internal combustion engines, comprising a valve member (11) which is axially displaceable in a valve body (1) and which with a sealing face (13) provided on its end toward the combustion chamber cooperates, in order to control an injection opening (17) with a valve seat (15) disposed on the valve body (1), and whose end remote from the combustion chamber is urged in the closing direction toward the valve seat (15) by a valve spring (31) disposed in a spring chamber (29) and the valve member has a pressure shoulder (21), acting in the opening direction, which protrudes into a pressure chamber (19) that is filled with fuel at a high pressure, the spring chamber (29) communicates via a throttle cross section with the pressure chamber (19), and in which an opening bore (35) discharges into the spring chamber (29) is provided, a closing screw (37) is sealingly screwed into a valve holding body which contains said spring chamber, and the hydraulic volume of the spring chamber (29) can be varied by way of a depth to which the screw is screwed in to said spring chamber.