FUEL PRESSURE REGULATOR VALVE

摘要

A fuel pressure regulator valve (10) of the type commonly used in automobile fuel injection systems. The invention relates to improved retention of the valve element within the mount that is carried by the diaphragm assembly (14). The valve element is a truncated sphere (32) and the retention is by means of a circular washer (36) that fits into a circular recess formed in the mount (28) around the cavity that contains the sphere. The truncated circular face of the sphere protrudes through the washer (36) so that it can coact with the valve seat (24). The inside diameter of the washer (36) is closely controlled and this controls the allowable travel of the sphere (32) within the cavity. The washer (36) is retained on the mount (28) by crimping the edge of the circular recess over the outside diameter of the washer.