Double clutch

Abstract

A double clutch for a double clutch transmission in the drive train of a motor vehicle, with single clutches that are arranged behind each other in the axial dimension and actuated hydraulically, including a single clutch arranged on the drive side, a single clutch arranged on the gear side, a driven clutch housing and two piston-cylinder units. The first of the two single clutches connects the clutch housing to the first transmission input shaft and the second single clutch connects the clutch housing to a second transmission input shaft, wherein both connections can be switched. The clutch housing is connected on the drive side to a drive shaft and on the gear side to input disk carriers.

1 . A double clutch having single clutches, arranged axially behind each other and actuated hydraulically, for a double clutch transmission in a drive train of a vehicle, having a single clutch arranged on the drive side, a single clutch arranged on the gear side, a driven clutch housing, and two piston-cylinder units, whereby a first single clutch switchably connects the clutch housing to a first transmission input shaft and a second single clutch connects the clutch housing to a second transmission input shaft, wherein the clutch housing is connected on the drive side to a drive shaft and on the gear side to input disk carriers that are arranged on the inside with respect to the single clutches and an input torque transmitted into the double clutch can be transmitted via the clutch housing around the two single clutches, whereby the clutch housing has a first support area for an actuating force of the single clutch arranged on the gear side, and whereby a second support area that is independent from the first support area is provided to support an actuating force of the single clutch arranged on the drive side. 
     
     
         2 . The double clutch recited in  claim 1  wherein the clutch housing has an engaging region arranged substantially radially with respect to a primary axis of the double clutch and connectable to the drive shaft, a cylindrical region arranged substantially axially with respect to the primary axis of the double clutch, and a connection and support region arranged substantially radially with respect to a primary axis of the double clutch. 
     
     
         3 . The double clutch recited in  claim 1  wherein the clutch housing is connected to a clutch hub and the clutch hub is connected to the input disk carrier of the single clutches. 
     
     
         4 . The double clutch recited in  claim 3  wherein the clutch housing is connected to the clutch hub via an axial splining, whereby the axial splining is arranged on the gear side. 
     
     
         5 . The double clutch recited in  claim 1  wherein the piston-cylinder units each have an actuating piston and a seal support, which along with a sub-region of the clutch hub outer surface form a separate actuating pressure compartment, whereby the actuating pistons are each preloaded via a spring element that is supported on the corresponding support element and/or on the connection and support region of the clutch housing. 
     
     
         6 . The double clutch recited in  claim 1  wherein the piston-cylinder units each have an actuating piston and a common seal support, which along with a sub-region of the clutch hub outer surface form a separate actuating pressure compartment, whereby the actuating pistons are each preloaded via a spring element that is supported on the support element and/or on the connection and support region of the clutch housing. 
     
     
         7 . The double clutch recited in  claim 5  wherein the actuating pressure compartments and the spring elements are each arranged radially inside the input disk carriers of the associated single clutch. 
     
     
         8 . The double clutch according to  claim 1  further comprising a support element, connected non-rotatably to the clutch hub, for the purpose of supporting the actuating forces of the single clutch arranged on the drive side, such that the actuating forces of the single clutches are supported separately and thereby cross-talk between the two single clutches can be prevented. 
     
     
         9 . The double clutch recited in  claim 1  further comprising output disk carriers that are nested in each other and arranged radially on the outside with respect to the input disk carriers. 
     
     
         10 . The double clutch recited in  claim 1  wherein the contact areas of the actuating pistons on each disk packet of the single clutches are each arranged on the drive side of the respective single clutch, such that an actuating direction of both single clutches extends in the direction of the gearing. 
     
     
         11 . The double clutch recited in  claim 1  wherein the contact areas of the actuating pistons on each disk packet of the single clutches are each arranged between the two single clutches, such that the actuating direction of the drive side single clutch extends in the direction of the drive and the actuating direction of the gear side single clutch in the direction of the gearing.