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...

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 37/00 (2006.01) F15B 19/00 (2006.01) F16H 61/00 (2006.01)

Patent

CA 2615480

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.

L'invention concerne un dispositif de test de soupape et un procédé pour déterminer le bon fonctionnement d'une soupape de régulation de fluide, telle qu'une soupape de transmission automatique. Le dispositif et le procédé de l'invention font passer un fluide sous pression à travers la soupape et vers un dispositif de mesure de débit qui mesure le débit du fluide traversant la soupape. Une contamination dans une soupape de ce type pouvant être à l'origine de mesures de débit non acceptables, lesdits dispositif et procédé font également passer un fluide de purge à travers la soupape dans une direction opposée à l'écoulement normal d'un fluide de travail à travers la soupape.

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