초록 ▼

A concentric hydraulic actuator for use with a manual transmission motor vehicle of the type in which the actuator housing moves in response to depression of the clutch pedal and the associated piston remains axially affixed. The housing of the actuator includes an outer main body portion defining a

A concentric hydraulic actuator for use with a manual transmission motor vehicle of the type in which the actuator housing moves in response to depression of the clutch pedal and the associated piston remains axially affixed. The housing of the actuator includes an outer main body portion defining an annular piston bore opening rearwardly and further defines an inner bearing carrier section including a hub portion slidably guiding on the associated quill shaft surrounding the transmission input shaft and interconnected to the main body outer portion of the housing by a radially extending web portion joined at its outer periphery to the inner periphery of the inner annular wall portion defining the piston bore at a location thereon spaced axially rearwardly from the forward end of the inner wall portion and joined at its inner periphery to the outer periphery of the hub portion at a location thereon spaced axially rearwardly from the forward end of the hub portion so as to define a forwardly opening bearing cavity in which the release bearing is received for coaction with the release element of the associated clutch. The hub portion of the bearing carrier, the release bearing, and the annular piston bore are arranged in concentric axially overlapping relationship to minimize the axial dimension of the actuator.

대표청구항 ▼

A hydraulic apparatus for use with a clutch having a clutch housing and a clutch release element, a transmission including a transmission housing positioned rearwardly of the clutch and having a front face, and a transmission input shaft drivingly interconnecting the clutch and the transmission, sai

A hydraulic apparatus for use with a clutch having a clutch housing and a clutch release element, a transmission including a transmission housing positioned rearwardly of the clutch and having a front face, and a transmission input shaft drivingly interconnecting the clutch and the transmission, said apparatus comprising: (A) a quill shaft fixedly positioned relative to the front face of the transmission housing and extending forwardly from the front face in concentrically surrounding but radially spaced relation to the transmission input shaft; (B) a clutch actuator housing adapted to be positioned within the clutch housing in concentric relation to the transmission input shaft and including an annular bearing carrier section having an axially extending annular hub portion slidably mounted on said quill shaft so as to mount said housing for axial sliding movement along said quill shaft, an annular main body section defining a rearwardly opening annular piston bore spaced radially outwardly from said bearing carrier section hub portion, and means defining a forwardly opening annular bearing bore between said bearing carrier hub portion and said piston bore; (C) a release bearing mounted on said bearing carrier section in said bearing bore; (D) an annular piston fitted at its forward end in said piston bore and bearing at its rearward end against the transmission housing front face; and (E) means for delivering hydraulic pressure fluid to said piston bore so as to move said actuator housing axially forward relative to the transmission input shaft with the axial movement guided by the sliding engagement of said bearing carrier section hub portion on said quill shaft whereby to move the clutch release element to a clutch disengaged position through the intermediary of said release bearing.