A clutch actuation device for a dual clutch including concentric slave cylinders

摘要

The application provides a clutch actuation device 10 for dual clutches of a Dual Clutch Transmission. The clutch actuation device 10 includes a cylinder assembly 21 that is fixed to a clutch casing 16. The cylinder assembly 21 includes an inner annular chamber 34, an outer annular chamber 30, an inner annular piston 33, and an outer annular piston 37. The inner annular chamber 34 is intended for receiving liquid under pressure and it comprises an inner inlet 35. Similarly, the outer annular chamber 30 is intended for receiving liquid under pressure and it comprises an outer inlet 31. The outer annular chamber 31 surrounds at least a portion of the inner annular chamber 34. The inner annular piston 33 is slidably disposed in the inner annular chamber 34 for actuating a first clutch disc whilst the outer annular piston 37 is slidably disposed in the outer annular chamber 31 for actuating a second clutch disc.