Transmission and a clutch assembly for a vehicle

US9234551B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Scott William Heitzenrater · Oakland Charter Township, US
• Robert Neil Paciotti · White Lake, US
• Douglas John Dwenger · Plymouth, US
• Larry D. Diemer · Clarkston, US
• John A. Diemer · Farmington Hills, US

Key dates

• Filing date: Sep 12, 2012
• Grant date: Jan 12, 2016
• Expiry date: Nov 27, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D25/12
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A transmission and a clutch assembly for a vehicle are disclosed. The clutch assembly includes a housing defining a cavity presenting an interior surface. The interior surface defines a pocket along a longitudinal axis. The clutch assembly further includes a piston disposed in the pocket and movable between an initial position and a final position relative to the pocket along the longitudinal axis. The piston includes a plurality of flanges extending outwardly away from the longitudinal axis. The clutch assembly also includes a biasing member attached to the interior surface of the housing and engaging the piston to continuously bias the piston toward the initial position. The biasing member abuts the flanges of the piston to prevent rotation of the piston about the longitudinal axis as the piston moves between the initial and final positions along the longitudinal axis.