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US 6,922,991 B2Granted
Regulated pressure supply for a variable-displacement reversible hydraulic motor
AssigneeMoog Inc.
InventorEric A. Polcuch
Life of this patent
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Abstract
A pressure-control device (20) includes a controllable variable-displacement reversible hydraulic motor (21) having a pressure port (22) and a return port (23); a source of pressurized fluid (Ps); a fluid return (R); and a pressure regulating valve (24) operatively interposed between the source, return and pressure port. The pressure regulating valve is operatively arranged to maintain a predetermined pressure at the pressure port regardless of the direction of flow through the pressure port.
Claims13
A pressure-control device, comprising:
- a controllable variable-displacement hydraulic motor having a pressure port and a return port;
- a source of pressurized fluid;
- a fluid return;
- and
- a pressure regulating valve operatively interposed between said source, return and pressure port, said valve being operatively arranged to maintain a predetermined pressure at said pressure port regardless of the direction of flow through said pressure port.
2 more elements
Dependencies are inferred from the claim text.