Patent ID: 6382183
Filing Date: 2002-05-07
Classification: F02M,G05D

Abstract:
A fuel pressure regulator comprising:a housing defining an internal fuel chamber, the housing having an open end, a return opening disposed opposite the open end, and an inlet opening communicating with the fuel chamber; a tubular return member adjustably mounted in the return opening and having inner and outer ends, the return member including a through flow passage communicating with the fuel chamber and defining a valve seat at the inner end, and a control member mounted on the open end of the housing and enclosing the fuel chamber, the control member comprising an imperforate resilient spring diaphragm having an outer edge sealed to the housing and a central valve portion engagable with the valve seat to cut off fuel flow through oil the return member; the control member acting as a cover closing the open-end of the housing against fuel leakage and responsive to excess pressure in the fuel chamber to discharge fuel through the return member and control fuel pressure by varying return fuel flow through the valve portion.