Valve for controlling a connection in a high-pressure fluid system, in particular in a fuel injection apparatus apparatus for an internal combustion engine

摘要

The valve has a valve member ( 72 ) that is guided so that it is able to slide in the direction of its longitudinal axis ( 73 ), protrudes into a valve pressure chamber ( 77 ) and, in the valve pressure chamber ( 77 ), has a sealing surface ( 81 ) at an end extending transversely in relation to its longitudinal axis ( 73 ), with which sealing surface ( 81 ) the valve member ( 72 ) cooperates with a valve seat ( 79 ) extending transversely in relation to its longitudinal axis ( 73 ) in order, at least to a large extent, to close an opening ( 78 ) encompassed by the valve seat ( 79 ) in relation to the valve pressure chamber ( 77 ). The opening ( 78 ) is adjoined by a connection ( 64 ) leading to a low-pressure region. The valve member ( 72 ) has a pin ( 83 ) that protrudes into the connection ( 64 ) and, when the sealing surface ( 81 ) of the valve member ( 72 ) is lifted away from the valve seat ( 79 ), this pin ( 83 ) conveys fluid flowing out of the valve pressure chamber ( 77 ) in such a way that the outgoing fluid exerts at least approximately no resulting force on the valve member ( 72 ) in the direction of its longitudinal axis ( 73 ).