Apparatus for producing a variable volumetric flow in a fuel feed system
AssigneeSiemens Aktiengesellschaft
InventorsHinrich Krüger, Martin Werner, Eckbert Zander
Life of this patent
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Abstract
An apparatus for producing a variable volumetric flow in a fuel feed system includes a high-pressure pump having at least one inlet, at least one cylinder, at least one piston each moveable in a respective cylinder, and a shaft driving the at least one piston. A metering device is disposed in the at least one inlet of the high-pressure pump, is synchronized with the shaft and feeds a variably meterable volume of fuel to the at least one cylinder during each revolution of the shaft. Metering is performed by varying an angle between opening and closure of the at least one inlet.
Claims12
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;
- and
- a 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.
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;
- a 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, and said metering device performing metering by varying said angle between opening and closure of said at least one inlet;
- a casing;
- a disk-shaped main body disposed in said casing, connected to said shaft, and having at least one of grooves and apertures;
- at least one of an inlet and an outlet displaceable relative to said at least one of grooves and apertures;
- said at least one of grooves and apertures and said at least one of an inlet and an outlet defining an angle of overlap therebetween;
- and
- said at least one of an inlet and an outlet having an angle between an opening and a closure thereof being varied by varying said angle of overlap.
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;
- a 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, and said metering device performing metering by varying said angle between opening and closure of said at least one inlet;
- a casing;
- a conical main body disposed in said casing, connected to said shaft and having at least one of grooves and apertures;
- at least one of an inlet and an outlet displaceable relative to said at least one of grooves and apertures;
- said at least one of grooves and apertures and said at least one of an inlet and an outlet defining an angle of overlap therebetween;
- and
- said at least one of an inlet and an outlet having an angle between an opening and a closure thereof being varied by varying the angle of overlap.
Dependencies are inferred from the claim text.