Solenoid-operated valve

F - Mech Eng,Light,Heat,Weapons – 16 – K

Patent

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137/37

F16K 31/42 (2006.01) B60T 13/38 (2006.01) B60T 13/66 (2006.01) B60T 15/04 (2006.01)

Patent

CA 1219513

(Case No. 8148) ABSTRACT OF THE DISCLOSURE A solenoid-operated fluid control valve having manual override and fluid latching for establishing a fluid path between a supply port and a delivery port when a brake- release solenoid pilot valve coil is momentarily energized to cause a pilot piston to close an exhaust valve and to open a supply valve for causing feedback pressure to be fed from a delivery chamber to a pilot chamber for fluid latching the pilot piston in a brake-release position until a brake- application solenoid pilot valve coil is momentarily ener- gized which causes the pilot chamber to exhaust to atmosphere so that the pilot piston returns and opens the exhaust valve and allows the closure of the supply valve.

459727

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