Patent ID: 6155233
Filing Date: 2000-12-05
Classification: F02M,Y10T

Abstract:
A pressure regulating apparatus for a fuel system, comprising:a housing;a body extending from the housing, comprising:an axial bore extending through a portion thereof that defines a longitudinal direction;a fuel inlet passageway in fluid communication with the axial bore;a fuel outlet passageway in fluid communication with the axial bore; anda cavity formed in the body adjacent the fuel inlet passageway;an elongate regulating pin slidably disposed within the axial bore, wherein the regulating pin includes opposite first and second ends, and wherein the regulating pin is movable within the axial bore along the longitudinal direction between an open position in which fuel may flow from the fuel inlet passageway into the axial bore and a closed position in which fuel flow from the fuel inlet passageway is blocked by the regulating pin first end;means for moving the regulating pin between the open and closed positions to regulate fuel pressure within the fuel inlet passageway by allowing fuel entering the axial bore via the fuel inlet passageway to exit via the fuel outlet passageway; anda pressure sensing element positioned within the cavity, wherein the pressure sensing element is configured to generate electrical signals responsive to stresses imposed on the body adjacent the fuel inlet passageway caused by fuel pressure within the fuel inlet passageway.