High pressure intensifying piston valve

Details High pressure intensifying piston valve High pressure intensifying piston valve

2007-06-19

2007-06-19

Leslie, Michael (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C060S563000, C060S591000, C277S534000

Reexamination Certificate

active

11161875

ABSTRACT:
The present invention includes a piston valve for charging and discharging a first fluid chamber. The piston valve includes a piston shaft and a ring comprising a seal element. The piston shaft has a first end and a second end with the first end including a counter bore having at least one vent. The ring is disposed within a cylinder and the seal element is disposed intermediate the piston shaft and the ring. The piston valve may be used for intensification purposes such as in a high pressure high temperature hydraulic cartridge.

REFERENCES:
patent: 2580353 (1951-12-01), Hunt
patent: 4328671 (1982-05-01), Pattison
patent: 4630636 (1986-12-01), Cutcher
patent: 5218821 (1993-06-01), Beneteau
patent: 5297383 (1994-03-01), Mackay
patent: 6336802 (2002-01-01), Hall

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