Patent ID: 6742643
Filing Date: 2004-06-01
Classification: F16D

Abstract:
A damper for provision in a hydraulic actuator system between a master cylinder and a slave cylinder of the system, the damper including a housing including a port for connection in the system and a diaphragm carried by the housing and coacting with the housing to define a chamber above the diaphragm and in communication with the port so that the diaphragm may deflect in response to vibrations transmitted through the hydraulic fluid in the system to effect damping of the vibrations, characterized in that:the diaphragm is formed of an elastomeric material; the damper further includes a stop structure fixed relative to the housing and positioned in the chamber in confronting relation to the diaphragm and operative to limit upward excursions of the diaphragm into the chamber to excursions within the elastic limit of the diaphragm, whereby to preclude permanent stretching of the diaphragm; and the stop structure includes aperture means providing communication between the port and the chamber irrespective of the position of the diaphragm relative to the stop structure, whereby to allow total evacuation of the chamber and subsequent total filling of the chamber.