Wet dual multi-plate clutch with levers outside the wet chamber

Patent metadata

Field	Value
Publication number	US-10167905-B2
Application number	US-201515322164-A
Country	US
Kind code	B2
Filing date	Jun 9, 2015
Priority date	Jun 27, 2014
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

A multi-plate dual clutch for coupling a motor vehicle engine to a drive shaft of a motor vehicle transmission and to an auxiliary power take-off output shaft of the motor vehicle. The dual clutch includes a drive clutch for coupling the motor vehicle engine with the drive shaft, and an auxiliary power take-off clutch for coupling the motor vehicle engine with the auxiliary output shaft. The drive clutch and the auxiliary power take-off clutch can each to be operated independently of one another by a separate lever mechanism. The dual clutch includes a wet chamber housing in which the drive clutch and the auxiliary power take-off clutch are accommodated in fluid-tight relationship, while the respective lever mechanisms for the drive clutch and the auxiliary power take-off clutch are located outside the wet chamber housing.

First claim

What is claimed is:

1. A multi-plate dual clutch for coupling an engine of a motor vehicle to a drive shaft of a transmission for the motor vehicle and to an auxiliary output shaft of an auxiliary power take-off of the motor vehicle, said multi-plate dual clutch comprising:
a drive clutch for coupling the motor vehicle engine with a drive shaft of the multi-plate dual clutch;
an auxiliary power take-off clutch for coupling the motor vehicle engine with an auxiliary output shaft of the multi-plate dual clutch;
wherein the drive clutch and the auxiliary power take-off clutch can each be actuated separately from one another by means of a respective separate lever mechanism;
wherein the multi-plate dual clutch includes a fluid-tight wet chamber housing in which the drive clutch and the auxiliary power take-off clutch are received; and
wherein the respective lever mechanisms for the drive clutch and the auxiliary power take-off clutch are located outside the wet chamber housing.

2. The multi-plate dual clutch according to claim 1 ,
wherein the multi-plate dual clutch includes a clutch housing for receiving and supporting the respective lever mechanisms;
wherein a drive clutch friction lining coupled with the drive shaft is positioned so that it can be pressed between a first contact plate and the clutch housing;
wherein an auxiliary output clutch friction lining coupled with the auxiliary output shaft is positioned so that it can be pressed between a second contact plate and the clutch housing; and
wherein the first contact plate and the second contact plate are each movable in an axial direction of the multi-plate dual clutch by a lever mechanism to selectively engage the drive clutch and the auxiliary power take-off clutch.

3. The multi-plate dual clutch according to claim 2 , wherein the wet chamber housing rests against the clutch housing and is sealed in relation thereto by a seal.

4. The multi-plate dual clutch according to claim 1 , wherein the wet chamber housing includes a first wet chamber housing half having a first housing part and a second housing part, which first and second housing parts are connected to one another in fluid-tight relationship.

5. The multi-plate dual clutch according to claim 4 , wherein the wet chamber housing includes a second wet chamber housing half that is firmly connected to the clutch housing and is in contact with at least one of the drive shaft or the auxiliary output shaft to provide a seal therebetween.

6. The multi-plate dual clutch claim 1 , wherein the wet chamber housing includes a flange for connecting the wet chamber housing to the motor vehicle.

7. The multi-plate dual clutch according to claim 1 , wherein the wet chamber housing includes a housing part that forms a bearing seat.

8. The multi-plate dual clutch according to claim 1 , wherein the wet chamber housing includes a coolant inlet and includes a coolant outlet located on an underside of the wet chamber housing.

9. The multi-plate dual clutch according to claim 2 , wherein the clutch housing includes a feed-through in which at least one of the first contact plate or the second contact plate, and a transmission element connected to at least one of the first contact plate and the second contact plate, are positioned between the lever mechanism and the respective contact plate in an axial direction of the multi-plate dual clutch.

10. The multi-plate dual clutch according to claim 4 , wherein the first housing part and the second housing part are each formed sheet metal parts.

11. The multi-plate dual clutch according to claim 4 , wherein a labyrinth seal is positioned between the second housing part and an auxiliary power take-off clutch base plate carrier that carries a clutch disk pack.

12. A multi-plate dual clutch comprising:
a fluid-tight wet chamber housing;
a drive clutch disposed within the fluid-tight wet chamber housing and arranged for coupling an engine to a transmission drive shaft;
a first lever mechanism disposed outside of the fluid-tight wet chamber housing and arranged for actuating the drive clutch;
a power take-off clutch disposed within the fluid-tight wet chamber housing and arranged for coupling the engine to an auxiliary output shaft; and,
a second lever mechanism disposed outside of the fluid-tight wet chamber housing and arranged for actuating the power take-off clutch.

13. The multi-plate dual clutch of claim 12 , wherein the fluid-tight wet chamber housing comprises:
a clutch housing for receiving and supporting the first lever mechanism and the second lever mechanism;
a second wet chamber housing half firmly connected to the clutch housing; and,
a seal for sealing the second wet chamber housing half to at least one of the transmission drive shaft or the auxiliary output shaft.

14. The multi-plate dual clutch of claim 12 , wherein the fluid-tight wet chamber housing comprises a housing part with a bearing seat.

15. The multi-plate dual clutch of claim 12 , wherein the fluid-tight wet chamber housing comprises:
a coolant inlet; and,
a coolant outlet disposed on an underside of the fluid-tight wet chamber housing.

16. The multi-plate dual clutch of claim 12 further comprising:
a clutch housing for receiving and supporting the first lever mechanism and the second lever mechanism;
a first contact plate;
a drive clutch friction lining arranged to be pressed between the clutch housing and the first contact plate;
a second contact plate; and,
a power take-off clutch friction lining arranged to be pressed between the clutch housing and the second contact plate, wherein:
the first contact plate is axially moveable by the first lever mechanism to engage the drive clutch; and,
the second contact plate is axially moveable by the second lever mechanism to engage the power take-off clutch.

17. The multi-plate dual clutch of claim 16 further comprising:
a transmission element, wherein:
the clutch housing comprises a feed-through; and,
the transmission element is connected to the first contact plate; and,
the transmission element and the first contact plate are axially positioned in the feed-through between the first contact plate and the first lever mechanism; or,
the transmission element is connected to the second contact plate; and,
the transmission element and the second contact plate are axially positioned in the feed-through between the second contact plate and the second lever mechanism.

18. The multi-plate dual clutch of claim 12 , wherein the fluid-tight wet chamber housing comprises:
a first wet chamber housing half comprising:
a first housing part; and,
a second housing part connected fluid-tight to the first housing part.

19. The multi-plate dual clutch of claim 18 , wherein the first housing part and the second housing part are each formed sheet metal parts.

20. The multi-plate dual clutch of claim 18 , further comprising:
a power take-off clutch base plate carrier; and,
a labyrinth seal positioned between the second housing part and the power take-off clutch base plate carrier.

Assignees

• Schaeffler Technologies Ag

Inventors

• Filsinger Andreas
• Weydmann Patrick
• Gander Gerhard
• Obitz Alexander

Classifications

• F16D2300/12

  Mounting or assembling · CPC title

• F16D2021/0676

  Mechanically actuated multiple lamellae clutches · CPC title

• F16D21/06 Primary

  at least two driving shafts or two driven shafts being concentric · CPC title

• A01D69/08

  Clutches · CPC title

• F16D13/52

  Clutches with multiple lamellae {; Clutches in which three or more axially moveable members are fixed alternately to the shafts to be coupled and are pressed from one side towards an axially-located member (F16D13/385 takes precedence)} · CPC title