Passively rephasing piston

Details Passively rephasing piston Passively rephasing piston

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 1/09 (2006.01) F03C 1/28 (2006.01) F04B 53/14 (2006.01) F15B 11/20 (2006.01) F15B 11/22 (2006.01) F15B 15/16 (2006.01) F15B 21/00 (2006.01) F16J 1/00 (2006.01)

Patent

CA 2617166

A piston is disclosed that includes a longitudinal passage disposed between outlets on the opposing faces of the piston, and a radial passage extending from a node with the longitudinal passage to an outlet on the annular wall between opposing piston seals. Check valves are disposed in the longitudinal passage between the node and each of the piston faces, such that each of the check valves enables fluid flow from its inlet to the outlet on the annular wall, and block fluid flow from the outlet on the annular wall to the inlet. In the event of pistons in a fluid system becoming out of phase with each other, fluid may be admitted through the inlet of the longitudinal passage and the respective check valve and out a side wall outlet, thereby bypassing the piston to exit via the respective end port, until another, out-of-phase piston or pistons in the system also reach full extension or retraction, automatically returning all pistons in the system to be in phase with each other.

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