Quick release valve

Details Quick release valve Quick release valve

F - Mech Eng,Light,Heat,Weapons

16

K

303/74

F16K 7/17 (2006.01) B60T 15/54 (2006.01) F16K 17/02 (2006.01)

Patent

CA 1252494

ABSTRACT OF THE DISCLOSURE A quick release valve for a vehicle fluid pressure braking system includes a housing having inlet, exhaust and delivery ports. A bead circumscribes the inlet port to provide a valve seating area for a flexible diaphragm within the valve housing, and the exhaust port includes a projecting portion which preloads the flexible diaphragm into engagement with the bead circumscribing the inlet port. Accordingly, pressure variations between the ports cannot force the flexible diaphragm to vibrate to create an undesirable honking noise. Furthermore, the circumferentially extending bead assures a pressure-tight seal with the flexible diaphragm, and also establishes a predetermined sealing area for the diaphragm, thereby reducing valve hysteresis by preventing sealing of the diaphragm at varying areas on the housing.

484521

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