Fluid handling – With heating or cooling of the system – With electric heating element
Reexamination Certificate
2006-11-03
2009-06-23
Fox, John (Department: 3753)
Fluid handling
With heating or cooling of the system
With electric heating element
C251S129100
Reexamination Certificate
active
07549438
ABSTRACT:
A heated valve that has particular application for one or more of a drain valve, a pressure release valve and a bleed valve in an anode outlet unit of a fuel cell system. The valve includes a divided solenoid having at least two coils. During a normal operation of the valve, current is applied to both coils. During a heat-up operation of the valve, current is applied to only one of the coils so that the reduced resistance of a single coil provides increased heat.
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Fox John
GM Global Technology Operations Inc.
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