Patent ID: 6318973
Filing Date: 2001-11-20
Classification: F01C,F04C,Y10T

Abstract:
A fuel pump comprising a pump housing having a pump inlet and pump outlet, a pumping element in said pump housing for pumping fuel entering said pump inlet to said pump outlet, a valve housing having one side in mating engagement with said pump housing, said valve housing containing a bypass valve for directing any excess fuel from said pump outlet back to said pump inlet, a valve cover in mating engagement with another side of said valve housing opposite said one side, a diaphragm seal between said valve cover and said valve housing, an O-ring groove in said another side of said valve housing containing an O-ring in sealing engagement with said diaphragm seal to prevent leakage of fuel between said valve cover and said valve housing, and another seal between said valve housing and said pump housing to prevent leakage of fuel therebetween.