Patent ID: 6637410
Filing Date: 2003-10-28
Classification: F02M,Y10T

Abstract:
A high pressure fuel supply apparatus comprising:a plunger reciprocating in a sleeve of a high pressure fuel pump so as to form a fuel pressurizing chamber between said plunger and said sleeve, a suction valve provided in a fuel suction port for sucking fuel into said fuel pressurizing chamber, a discharge valve provided in a fuel discharge port for discharging fuel from said fuel pressurizing chamber into a high pressure fuel discharge passageway communicating with an internal combustion engine, said discharge valve reciprocating axially so as to perform an open/close operation, and regulating means for regulating an axial reciprocating movement of said discharge valve in said open/close operation within a predetermined range; wherein said axially movable range of said discharge valve in said open/close operation is from 0.1 mm to 0.4 mm.