Double-acting hydraulic actuator with different pumps for each actuation direction

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United States of America Patent

PATENT NO 11384777
APP PUB NO 20210262492A1
SERIAL NO

17261610

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An actuator operable to move a valve stem between an opened position and a closed position includes a cylinder including an open side and a close side, the cylinder coupled to the valve stem, a first pump connected to the cylinder and operable to deliver a first high-pressure fluid to the open side of the cylinder to move the valve stem toward the opened position, and a second pump separate from the first pump, the second pump connected to the cylinder and operable to deliver a second high-pressure fluid to the close side of the cylinder to move the valve stem toward the closed position.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS ENERGY INC4400 ALAFAYA TRAIL ORLANDO FL 32826

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Casey, John Fort Collins, US 30 76

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