Clutch device for a hybrid drive system

Patent metadata

Field	Value
Publication number	US-10663012-B2
Application number	US-201615750336-A
Country	US
Kind code	B2
Filing date	Jul 18, 2016
Priority date	Aug 20, 2015
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

A clutch device includes a first and a second input side as well as a first and a second output side. The input sides and the output sides can be rotated about a common axis of rotation. The clutch device furthermore includes a first clutch between the first input side and the first output side and a second clutch between the first input side and the second output side. A third clutch may be provided between the first input side and the second input side. A first hydraulic actuating device is associated with the first clutch, a second hydraulic actuating device is associated with the second clutch, and a third hydraulic actuating device is associated with the third clutch. A radial flange, which receives an axial actuating force of one of the actuating devices, includes a radially extending feed for hydraulic fluid to one of the actuating devices.

First claim

The invention claimed is:

1. A clutch device comprising:
an axis of rotation;
a first input side and a second input side each rotatable around the axis of rotation;
a first output side and a second output side each rotatable around the axis of rotation;
a first clutch disposed between the first input side and the first output side, and including a first hydraulic actuating device;
a second clutch disposed between the first input side and the second output side, and including a second hydraulic actuating device;
a third clutch disposed between the first input side and the second input side, and including a third hydraulic actuating device; and,
a radial flange:
comprising a radially extending feed for hydraulic fluid to at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device; and,
arranged for receiving an axial actuating force of at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device, wherein:

the first output side or the second output side comprises a shaft having a coaxial hole; and
the radially extending feed opens into the coaxial hole.

2. The clutch device as claimed in claim 1 , wherein the first clutch and the second clutch are offset axially relative to one another.

3. The clutch device as claimed in claim 1 , wherein the radial flange comprises mutually separate, radially extending feeds to the first hydraulic actuating device and the second hydraulic actuating device.

4. The clutch device as claimed in claim 1 , wherein the radially extending feed extends radially outward from at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device.

5. The clutch device as claimed in claim 1 , wherein the radially extending feed extends radially inward from at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device.

6. The clutch device as claimed in claim 5 , wherein:
the radially extending feed is closed on a radial outer side by means of a closure body;
the closure body rests radially on an electric machine; and,
the electric machine is mounted radially outside of the first input side.

7. The clutch device as claimed claim 1 , wherein:
the first clutch, the second clutch, and the third clutch are all arranged in a common housing; and,
the common housing is at least partially filled with a liquid medium.

8. The clutch device as claimed claim 1 , wherein the first input side is arranged for connection to a rotor of an electric machine.

9. The clutch device as claimed in claim 1 , wherein the second input side is arranged for connection to an output shaft of a combustion engine.

10. A clutch device comprising:
an axis of rotation;
a first input side rotatable around the axis of rotation and arranged for connection to an electric machine;
a first output side and a second output side each rotatable around the axis of rotation;
a first clutch for frictionally engaging the first input side to the first output side, the first clutch comprising a first hydraulic actuating device;
a second clutch for frictionally engaging the first input side and the second output side, the second clutch comprising a second hydraulic actuating device; and,
a radial flange comprising a radially extending feed for providing hydraulic fluid to the first hydraulic actuating device or the second hydraulic actuating device, wherein the first output side or the second output side comprises a shaft having a coaxial hole and the radially extending feed opens into the coaxial hole.

11. The clutch device of claim 10 , wherein the first clutch and the second clutch are radially aligned and axially offset relative to one another.

12. The clutch device of claim 10 , wherein the radially extending feed comprises:
a first radially extending feed to the first hydraulic actuating device; and,
a second radially extending feed to the second hydraulic actuating device.

13. The clutch device as claimed in claim 10 , wherein:
the radially extending feed is closed on a radial outer side by means of a closure body;
the closure body rests radially on the electric machine; and,
the electric machine is mounted radially outside of the first input side.

14. The clutch device as claimed claim 10 , wherein:
the first clutch and the second clutch are arranged in a common housing; and,
the common housing is at least partially filled with hydraulic fluid.

15. The clutch device of claim 10 , further comprising:
a second input side rotatable around the axis of rotation and arranged for connection to a combustion engine; and,
a third clutch for frictionally engaging the second input side to the first input side, the third clutch comprising a third hydraulic actuating device.

16. The clutch device of claim 15 , wherein the first clutch, the second clutch, and the third clutch are radially aligned and axially offset relative to one another.

17. The clutch device of claim 15 , wherein the radially extending feed comprises:
a first feed to the first hydraulic actuating device;
a second feed to the second hydraulic actuating device; and,
a third feed to the third hydraulic actuating device.

18. The clutch device as claimed claim 15 , wherein:
the first clutch, the second clutch, and the third clutch are all arranged in a common housing; and,
the common housing is at least partially filled with hydraulic fluid.

19. A clutch device comprising:
an axis of rotation;
a first input side and a second input side each rotatable around the axis of rotation;
a first output side and a second output side each rotatable around the axis of rotation;
a first clutch disposed between the first input side and the first output side, and including a first hydraulic actuating device;
a second clutch disposed between the first input side and the second output side, and including a second hydraulic actuating device;
a third clutch disposed between the first input side and the second input side, and including a third hydraulic actuating device; and,
a radial flange:
comprising a radially extending feed for hydraulic fluid to at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device; and,
arranged for receiving an axial actuating force of at least one of the first hydraulic actuating device, the second hydraulic actuating device, and the third hydraulic actuating device, wherein:

the radially extending feed is closed on a radial outer side by means of a closure body;
the closure body rests radially on an electric machine; and,
the electric machine is mounted radially outside of the first input side.

Assignees

• Schaeffler Technologies Ag

Inventors

• Lorenz Elmar

Classifications

• F16D2021/0661

  Hydraulically actuated multiple lamellae clutches · CPC title

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60K6/387

  Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means · CPC title

• H02K7/108

  with friction clutches · CPC title

• F16D2021/0615

  the central input plate is supported by bearings in-between the two clutches · CPC title