Solenoid-operated valve for use with fuel cells

Details Solenoid-operated valve for use with fuel cells Solenoid-operated valve for use with fuel cells

2008-07-22

2008-07-22

Fristoe, Jr., John K. (Department: 3753)

Valves and valve actuation

Balanced valves

Reciprocating

C251S129150, C137S340000

Reexamination Certificate

active

11291714

ABSTRACT:
A solenoid-operated valve for use with fuel cells has a valve housing made of aluminum, for example and having first through third heating medium passages defined therein. A valve seat disposed in and fastened to the valve housing is made of stainless steel, for example. A valve head has a disk which can be seated on and unseated off a valve seat member of a valve seat. The valve head is coupled by threaded surfaces to the distal end of a movable member which is displaceable when a solenoid is energized. The movable member is made of a magnetic metallic material, and the valve head is made of a corrosion-resistant metallic material such as stainless steel or the like, for example.

REFERENCES:
patent: 3967808 (1976-07-01), Lieding
patent: 4582294 (1986-04-01), Fargo
patent: 4623002 (1986-11-01), Schoonover et al.
patent: 5941502 (1999-08-01), Cooper
patent: 6152421 (2000-11-01), Suzuki
patent: 6380832 (2002-04-01), Oyama et al.
patent: 6631881 (2003-10-01), Weldon et al.
patent: 7048252 (2006-05-01), Shibata
patent: 2004-183681 (2004-07-01), None

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