| 摘要 |
PURPOSE: A rubber ring for a clutch piston of a multi-plate clutch system of an automatic transmission is provided to reduce repetitive external force generated in a body unit. CONSTITUTION: A rubber ring(10) for a clutch piston of a multi-plate clutch system of an automatic transmission comprises a clutch retainer(102), a clutch plate, a clutch disk, a clutch piston(105), and a return spring. The clutch retainer is coupled to a shaft. The clutch plate is coupled to the clutch retainer to be integrally rotated with the clutch retainer. The clutch disk intermittently transfers power to a clutch hub. The clutch piston touches the clutch disk to the clutch plate and has one or more ring grooves(105a). The return spring generates restoring force to the clutch piston.
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