Valve with venting port

Details Valve with venting port Valve with venting port

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 17/00 (2006.01) B60D 1/64 (2006.01) F16K 11/00 (2006.01) F16K 24/00 (2006.01)

Patent

CA 2731530

A valve includes a valve housing. A bore is in the valve housing. An inlet supply port fluidly communicates a pressurized supply fluid to the bore. A piston is movably positioned in the bore based on the pressure of the supply fluid. A portion of the piston extends into a frusto-conically shaped portion of the bore. A sealing member is associated with the portion of the piston sealingly engaging a surface of the frusto- conically shaped portion of the bore based on the pressure of the supply fluid. An inlet valve, movably positioned in the bore, is biased to sealingly engage a wall of the bore based on the pressure of the supply fluid. A control pressure supply port fluidly communicates a pressurized control fluid to the bore through the valve housing. A control pressure delivery port fluidly communicates with the control pressure supply port, via the bore, based on the pressure of the supply fluid. A venting port fluidly communicates with the control pressure delivery port, via the bore, based on the pressure of the supply fluid.

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