Hydrogen valve with pressure equalization

Details Hydrogen valve with pressure equalization Hydrogen valve with pressure equalization

2007-05-22

2007-05-22

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S129210

Reexamination Certificate

active

11155184

ABSTRACT:
A shut-off valve that has particular application for opening and closing a compressed hydrogen storage tank. In one embodiment, the valve includes two valve sealing members where one side of one valve sealing member is on the high pressure side of the valve and an opposing side of the other valve sealing member is on the high pressure side of the valve. Therefore, the pressure applied to the two valve sealing members offset each other so that less force is required to open the valve against the high pressure. In another embodiment, one of the sealing members is replaced with a bellows.

REFERENCES:
patent: 3985333 (1976-10-01), Paulsen
patent: 4429716 (1984-02-01), Conrad
patent: 5263514 (1993-11-01), Reeves
patent: 5584323 (1996-12-01), Yamamuro
patent: 5607137 (1997-03-01), Kanda et al.
patent: 5816560 (1998-10-01), Obser
patent: 5927257 (1999-07-01), Hackett
patent: 5992219 (1999-11-01), Otaka
patent: 6415820 (2002-07-01), Gluf, Jr.

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