F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/87
F16F 9/16 (2006.01) B60N 3/08 (2006.01) F16F 9/19 (2006.01) F16F 9/34 (2006.01) F16F 9/342 (2006.01) F16F 9/346 (2006.01) F16F 9/44 (2006.01)
Patent
CA 1235157
Title: "A VIBRATION DAMPER" ABSTRACT A vibration damper (10, 60) has a body (12,61) with a cylinder (13, 65) divided into two variable volume chambers (24, 25; 75, 76) by a piston (23, 72) with an externally extending piston rod (22, 70), fluid passages (27, 28; 77, 78) interconnect the chambers (24, 25; 75,76) and each passage has a one-way valve (33, 36; 81, 82) to provide unidirectional flow of the damping fluid through the passages. A control valve (39, 40; 83, 84) is provided for each passage to control the rate of oil flow through the passages and thereby the rate of damping of the piston (23,72) in each direction. Where the piston rod (22) is provided in only one of the chambers (24), relief valves (48, 50) enable flow between the passages (27, 28) and the interior (14) of the body (13) to compensate for the volume in the chamber (24) occupied by the piston rod (22).
449386
Culley Donald M.
Ridout & Maybee Llp
LandOfFree
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