Valve testing device having integrated purge circuit and...

Details Valve testing device having integrated purge circuit and... Valve testing device having integrated purge circuit and...

2007-05-01

2007-05-01

Williams, Hezron (Department: 2856)

Measuring and testing

With fluid pressure

Motor part or auxiliary

C073S118040, C073S865600, C073S865900

Reexamination Certificate

active

11192903

ABSTRACT:
A valve testing device and method for determining whether a fluid control valve, such as an automatic transmission valve, is operating acceptably. The device and method of the present invention passes pressurized fluid through the valve and to a flow measuring means where the flow rate of fluid through the valve can be measured. Because contamination within such a valve can contribute to unacceptable flow rate measurements, the device and method of the present invention can also pass purge fluid through the valve in a direction that is opposite to the normal flow of working fluid through the valve.

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