F - Mech Eng,Light,Heat,Weapons – 01 – P
Patent
F - Mech Eng,Light,Heat,Weapons
01
P
137/44
F01P 11/18 (2006.01) F02B 3/06 (2006.01)
Patent
CA 1308992
ABSTRACT OF THE INVENTION An improved valve, responsive to the loss of coolant under pressure in a diesel engine or the like, to open and allow fluid flow downstream with a consequent loss in fluid pressure, which is recognized by a pressure sensitive fuel valve supplying fuel flow to the engine. The coolant loss valve includes a three-part housing having the periphery of an elastomeric rolling diaphragm trapped between two housing parts and forming a coolant chamber. A spring-loaded piston and pin assembly transmit diaphragm movement, the pin forming a valve controlling fluid flow through a die cast aluminum head structure which is the third part of the housing. A stainless steel pin is used for corrosion resistance and is supported for axial movement in a dual quad ring seal and sleeve structure.
573201
Macdonald Robin B.
Schaupp Richard E.
Parker-Hannifin Corporation
Ridout & Maybee Llp
LandOfFree
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