Patent ID: 6293250
Filing Date: 2001-09-25
Classification: F02M

Abstract:
An apparatus for producing a variable volumetric flow in a fuel feed system, comprising:a high-pressure pump having at least one cylinder, at least one piston respectively moveable in said at least one cylinder, a shaft driving said at least one piston, and at least one inlet defining an angle between opening and closure of said at least one inlet; anda metering device disposed at said at least one inlet of said high-pressure pump, said metering device synchronized with said shaft and feeding a variably meterable volume of fuel to said at least one cylinder during each revolution of said shaft, said metering device performing metering by varying said angle between opening and closure of said at least one inlet, said metering device having at least one of grooves and apertures to be displaced relative to one another and defining an angle of overlap therebetween, and said angle between opening and closure of said at least one inlet is varied by varying said angle of overlap.