F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/154
F04B 53/10 (2006.01) F16K 1/46 (2006.01) F16K 15/02 (2006.01)
Patent
CA 2011763
A valve element for a fluid pump comprises a rigid body and a flexible ring-shaped seal mounted on the body. The body includes an annular groove around its outer periphery in which the seal is mounted. An outer surface of the groove forms a first contact surface which engages a second contact surface defined by an inner circumference of the seal. Those contact surfaces form an angle of from So to loo with the longitudinal axis of the valve element to resist the creation of a gap between those surfaces. The seal includes a longitudinally projecting annular finger which is hooked into a correspondingly shaped channel of the recess to secure the seal to the body. The contact surface of the seal is configured to reduce the compression imposed on the front end of the seal so as to render that front end relatively flexible and able to effectively absorb forces applied thereagainst by grit disposed in fluid being pumped.
National-Oilwell L.p.
Riches Mckenzie & Herbert Llp
LandOfFree
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