| 摘要 |
A control valve (10) having a plunger (64) with a stem having a flange defined by a first diameter (66) loosely located in a first diameter (58) of a bearing (50) and a second diameter (68) sealingly located in a second diameter (56) of the bearing (50). A space between the flange and the bearing (50) defining a dampening chamber (82) such that on movement of plunger (64) toward an actuation chamber (54), fluid is drawing through a controlled flow path (x) into the dampening chamber (82). Under certain operational conditions, fluid pressure in the actuation chamber (54) maybe subjected to oscillation and the fluid in the dampening chamber (82) cancels the effect to the oscillation such that plunger (64) remains in a substantially stationary position corresponding to an input force applied thereto to effect a brake application.
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