Vane pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8961157
APP PUB NO 20130251571A1
SERIAL NO

13767444

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vane pump includes a plurality of vanes and a vane cam. Each of the vanes is housed in a corresponding one of multiple slits in an outer periphery of a rotor in a manner of being capable of protruding from, and retracting in, the slit. Each of the vanes has both end faces formed into curved surfaces in a plane perpendicular to a rotational axis of the rotor. The vane cam is disposed in contact with an end portion of the rotor such that an outer peripheral surface thereof contacts inner peripheral side end portions of all vanes to thereby forcedly make the vanes protrude and retract. The vane cam is movable so as to vary an amount of eccentricity relative to a drive shaft.

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Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTDIBARAKI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iijima, Masaaki Maebashi, JP 22 134

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