Patent ID: 7086388
Filing Date: 2006-08-08
Classification: F16K,Y10T

Abstract:
1. A combination valve for fuel delivery system of a vehicle having an engine, the fuel delivery system being configured to pump fuel to the engine and the fuel delivery system has a regulator for regulating the pressure of the fuel when it is being pumped to the engine by the fuel delivery system, the combination valve comprising: an outer housing defining an inner opening for slidably receiving a body portion of a pump pressure relief valve therein, said body portion of said pump pressure relief valve defining an inner opening for slidably receiving a body portion of a system pressure relief valve therein, said body portion of said system pressure relief valve defining an inner opening for slidably receiving a body portion of a check valve therein, said body portion of said check valve being configured to provide a first fluid pathway in a first direction when said body portion of said check valve moves from a closed position to an open position as said body portion of said check valve moves in said first direction within said inner opening of said body portion of said system pressure relief valve, said body portion of said system pressure relief valve being configured to provide a second fluid pathway in a second direction when said body portion of said system pressure relief valve moves from a closed position to an open position as said body portion of said system pressure relief valve moves in said second direction within said inner opening of said pump pressure relief valve, said body portion of said pump pressure relief valve being configured to provide a third fluid pathway in a said first direction when said body portion of said pump pressure relief valve moves from a closed position to an open position as said body portion of said pump pressure relief valve moves in said first direction within said inner opening of said outer housing, wherein said first direction being opposite to said second direction.