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US 12,624,710 B2Granted
Pneumohydraulic pressure intensifier
AssigneeWS Wieländer + Schill Engineering GmbH & Co. KG
InventorKlaus Reitzig
Life of this patent
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Abstract
A pneumohydraulic pressure intensifier includes at least one pneumatic piston that is coupled to a hydraulic pump. The pressure intensifier includes a regulator which allows to set the hydraulic output pressure. The regulator is coupled to a hydraulic pilot control valve which is adapted to interrupt the air supply to the pneumatic piston when a set maximum pressure is reached.
Claims12
A pneumohydraulic pressure intensifier (1), comprising:
- a hydraulic pump (300), including
- a hydraulic piston (301),
- a pressure valve (302) configured to open when the hydraulic piston (301) is advanced and hydraulic fluid is pushed out of the hydraulic pump (300) through the pressure valve (302), and
- a suction valve (303) configured to open when the hydraulic piston (301) is retracted and hydraulic fluid flows into the hydraulic pump (300) through the suction valve (303) while the pressure valve (302) is closed;
- a pneumatic piston (42a, 42b) coupled to the hydraulic pump (300);
- a hydraulic pilot control valve (200) adapted to interrupt an air supply to the pneumatic piston (42a, 42b);
- and
- a regulator configured to set a hydraulic output pressure;
- wherein the regulator is coupled to the hydraulic pilot control valve (200) and adapted to interrupt the air supply to the pneumatic piston (42a, 42b) when a set maximum hydraulic output pressure is reached.
6 more elements
Dependencies are inferred from the claim text.