Damper for hydraulic clutch actuator

A damper for provision in a hydraulic actuator system between a master cylinder and a slave cylinder of the system, said damper including a housing including inlet and outlet ports for connection in the system and defining a chamber in communication with said ports, a flat plate diaphragm fixed at its periphery to said housing and extending across said chamber with one face thereof communicating with said ports so as to form a boundary wall of said system so that said diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and a limiting surface on said housing confronting the other face of said diaphragm and including a raised central portion positioned closer to said other diaphragm face than the remainder of the limiting surface and operative to limit the deflection of the central region of said diaphragm to a predetermined maximum magnitude.

A clutch hydraulic actuator system having a vibration damper provided in the system between a master cylinder and a slave cylinder thereof, the damper including a housing, a diaphragm mounted in the housing with its periphery fixed with respect to the housing and having one face constituting a boundary wall of the hydraulic system so that the diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and limit means confronting the other face of the diaphragm and operative to limit the deflection of the central region of the diaphragm to a predetermined maximum magnitude to limit the stress at the center of the diaphragm to an acceptable level, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a stop member defined on the housing surface and extending from the housing surface toward the central region of the diaphragm.

A clutch hydraulic actuator system having a vibration damper provided in the system between a master cylinder and a slave cylinder thereof, the damper including a housing, a diaphragm mounted in the housing with its periphery fixed with respect to the housing and having one face constituting a boundary wall of the hydraulic system so that the diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and limit means confronting the other face of the diaphragm and operative to limit the deflection of the central region of the diaphragm to a predetermined maximum magnitude to limit the stress at the center of the diaphragm to an acceptable level, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a spring member positioned between the housing surface and the other diaphragm face.

A clutch hydraulic actuator system having a vibration damper provided in the system between a master cylinder and a slave cylinder thereof, the damper including a housing a diaphragm mounted in the housing with its periphery fixed with respect to the housing and having one face constituting a boundary wall of the hydraulic system so that the diaphragm can deflect in respect to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and limit means confronting the other face of said diaphragm and operative to limit the deflection of the central region of the diaphragm to a predetermined maximum magnitude to limit the stress at the center of the diaphragm to an acceptable level, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a liquid substance positioned between the housing surface and the other diaphragm face.

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 inlet and outlet ports for connection in the system and defining a chamber in communication with the ports, a diaphragm fixed at its periphery to the housing and extending across the chamber with one face thereof communicating with the ports so as to form a boundary wall of the system so that the diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and means carried by the housing and positioned in confronting relation to the other face of said diaphragm and operative to limit the deflection of the central region of the diaphragm to a predetermined maximum magnitude, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a stop member defined on the housing surface and extending from the housing surface toward the central region of the diaphragm.

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 inlet and outlet ports for connection in the system and defining a chamber in communication with the ports, a diaphragm fixed at its periphery to the housing and extending across the chamber with one face thereof communicating with the ports so as to form a boundary wall of the system so that the diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and means carried by the housing and positioned in confronting relation to the other face of said diaphragm and operative to limit the deflection of the central region of the diaphragm to a predetermined maximum magnitude, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a spring member positioned between the housing surface and the other diaphragm face.

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 inlet and outlet ports for connection in the system and defining a chamber in communication with the ports, a diaphragm fixed at its periphery to the housing and extending across the chamber with one face thereof communicating with the ports so as to form a boundary wall of the system so that the diaphragm can deflect in response to vibrations transmitted through hydraulic fluid in the system to effect damping of the vibrations, and means carried by the housing and positioned in confronting relation to the other face of said diaphragm and operative to limit the deflection of the central region of the said diaphragm to a predetermined maximum magnitude, characterized in that the housing defines a surface in spaced confronting relation to the other diaphragm face and the limit means comprises a liquid substance positioned between the housing surface and the other diaphragm face.