Patent ID: 6752170
Filing Date: 2004-06-22
Classification: F02M,F16K,G05D,Y10T

Abstract:
A fuel pressure regulating valve having:a housing; a fuel chamber into which a fuel flows; a spring chamber receiving a spring; the fuel chamber and the spring chamber being formed within the housing by a partitioning diaphragm; a tubular bush through which fuel flows out of said fuel chamber; and a valve body mounted to said diaphragm, said valve body being opposed to a valve seat formed in a peripheral edge of an opening portion of said bush; said valve body being energized in a direction of said valve seat by said spring, said bush being provided with a pressure uniformizing partition wall portion having flow passages or holes for communicating said fuel chamber with an external portion, said flow passages or holes extending through both axial end surfaces in an axial direction for uniformizing a pressure distribution of the fuel in the downstream side, each of said passages or holes being straight from upstream end to downstream end thereof.