Concentrically mounted hydraulic clutch actuator

Details Concentrically mounted hydraulic clutch actuator Concentrically mounted hydraulic clutch actuator

1988-10-13

1990-04-10

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Operators

192 88A, 192110B, 921692, F16D 2508, F16D 1358

Patent

active

049152025

ABSTRACT:
A hydraulic clutch actuator for a motor vehicle of the concentric type in which the actuator is mounted concentrically around the transmission input shaft of the vehicle within the housing of the clutch. The actuator includes a housing structure defining a central quill shaft surrounding the input shaft of the vehicle and slidably supporting the hub portion of the bearing carrier and further defines an annular piston bore spaced radially outwardly from the quill shaft to define an annular bore between the piston bore and the quill shaft into which the rear end of the hub portion of the bearing carrier may move during the operation of the actuator so as to provide overlap as between the annular piston and the bearing carrier and minimize the axial dimension of the actuator. The preload spring is also positioned in the annular bore between the quill shaft and the piston bore so as to further optimize the compact packaging of the actuator. The actuator housing structure is formed of a plastic material and the actuator further includes a strengthening steel ring or hoop that is insert molded around the housing structure adjacent the open, forward end of the piston bore and a dust shield that is lockingly mounted at its rear end on the strengthening ring and sealingly engages the piston at its forward end.

REFERENCES:
patent: 4585109 (1986-04-01), Shirley et al.
patent: 4601374 (1986-07-01), Ladin
patent: 4609087 (1986-09-01), Shirley
patent: 4637505 (1987-07-01), Huber
patent: 4660702 (1987-04-01), Flotow
patent: 4684003 (1987-08-01), Leigh-Monstevens
patent: 4708228 (1987-11-01), Leigh-Monstevens

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