Method of dampening pressure pulsations in a working fluid within a conduit

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United States of America Patent

PATENT NO 9829139
SERIAL NO

14626607

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Importance

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Abstract

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A method is provided for actively compensating for pressure changes of a working fluid within a conduit. A first cavity is provided in fluid communication with the conduit. A second cavity is in fluid communication with a control fluid. A plunger is in communication with both the first cavity and the second cavity and is movable in response to pressure changes of the working fluid in the conduit. The plunger is re-centered. Re-centering the plunger includes the following steps. Position data representative of movement of the plunger is collected. The position data is analyzed with a control unit to determine an average position of the plunger which is offset relative to a center position. The average position of the plunger is compared, with a control unit, to the center position. A signal is relayed from the control unit to a control valve to urge the plunger toward the center position.

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Patent Owner(s)

Patent OwnerAddress
BOSCH REXROTH CORPORATION14001 SOUTH LAKES DRIVE CHARLOTTE NC 28273
ROBERT BOSCH GMBHPOSTFACH 30 02 20 STUTTGART 70442

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stavrou, Paul C Slatington, US 4 19

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