Variable displacement compressor with an oil check valve

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United States of America Patent

PATENT NO 10066618
APP PUB NO 20160123321A1
SERIAL NO

14533686

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A variable displacement compressor includes a control valve and a check valve. The control valve is in fluidic communication with a discharge chamber of the compressor and a crankcase of the compressor. The check valve is interposed between the control valve and the discharge chamber. The check valve is configured to allow flow from the discharge chamber to the control valve and to prevent flow from the control valve to the discharge chamber. The check valve includes a ball and a spring. The spring is configured to urge the ball toward a closed position. The spring is characterized by a rate of the spring and a free-length of the spring, and the rate and the free-length are selected to minimize de-stroke noise caused by a rapid change of the compressor operation to a low displacement state.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBHMAUSERSTRASSE (MAUSERSTRASSE) 3 STUTTGART 70469

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Warren, Matthew R Buffalo, US 12 146

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