| 摘要 |
A coaxial adjustable hydraulic clutch actuator of the invention for use with an automotive transmission and clutch, as in a racing vehicle for coupling power from the engine to the transmission. The transmission has a power input shaft and the clutch has actuating elements, the engine and transmission being joined by a bell housing. The actuator includes a base housing configured for retaining a bearing of the input shaft. A sleeve extends forwardly from the base housing coaxial with the input shaft. A piston is fitted coaxially within the sleeve and is received within an annular hydraulic fluid chamber to which hydraulic fluid is supplied under pressure from exteriorly of the bell housing. A clutch throw-out bearing is carried coaxially by the piston for being driven into throw-out engagement with the actuating elements of the clutch by movement of the piston in response to the hydraulic fluid pressure for clutch actuating operation. The piston is resiliently urged toward the base housing by a sleeve and spring assembly for normally maintaining the actuating bearing in a disengaged position. The base housing includes provision for adjusting the axial position of the throw-out bearing in precise disengaged position relative to the clutch actuating elements.
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