Variable displacement lubricant pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9920757
APP PUB NO 20160003243A1
SERIAL NO

14768764

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A variable displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine includes a shiftable control ring, a hydraulic control chamber which directly actuates the control ring, a pump rotor comprising a plurality of slidable vanes which rotate in the control ring, a control chamber wall, a temperature control opening arranged in the control chamber wall, and a temperature control valve which connects or disconnects the temperature control opening to an atmospheric pressure. The temperature control valve comprises a valve plunger which is axially shiftable so as to block or leave open a lubricant passage, and a first bimetal actuator sheet which directly actuates the valve plunger. The first bimetal actuator sheet comprises a first switching temperature. The valve plunger is in an open position if a lubricant temperature exceeds the first switching temperature.

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Patent Owner(s)

Patent OwnerAddress
PIERBURG PUMP TECHNOLOGY GMBHALFRED-PIERBURG-STRASSE 1 NEUSS 41460

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Celata, Bernardo Leghorn, IT 6 29

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