# US 2021/0277960 A1 · Conducting element, hybrid module and drive assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0277960 A1
- Document ID: US20210277960A1
- Status: Published application
- Kind: A1
- Application number: 17/257,914
- Filed: 2019-06-07
- Published: 2021-09-09
- Earliest claimed: 2018-07-05
- Assignees: Schaeffler Technologies AG & Co. KG
- Applicants: Schaeffler Technologies AG & Co. KG
- Inventors: Simon ORTMANN; Philipp TEPPER; Dominik WEIS
- Web page: https://patentgrep.com/patent/US20210277960A1

## CPC

- B60K 6/48: Parallel type
- F16D 25/123: {in view of cooling and lubrication}
- B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
- F16D 13/52: 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)}
- F16D 25/0638: with more than two discs, e.g. multiple lamellae
- F16D 2121/04: acting on a piston-type actuator, e.g. for liquid pressure
- F16D 2125/04: Cylinders
- F16D 2125/08: Seals, e.g. piston seals
- Y02T 10/62: Hybrid vehicles
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A conducting element for conducting a pressurized fluid and for conducting a cooling fluid, as well as a hybrid module and a drive assembly having a hybrid module are provided. The conducting element for conducting a pressurized fluid for hydraulically actuating a clutch unit and for conducting cooling fluid for cooling a clutch unit has a cylindrical section and a securing section. At least one pressurized fluid channel is formed in the securing section for transporting pressurized fluid. The conducting element also has at least one cooling fluid channel which has at least one axial direction component in the cylindrical section, wherein the flow line element is fluidically connected to the cooling fluid channel for supplying a clutch unit and/or electric machine with cooling fluid. With this embodiment of the conducting element, a possibility for fluid conducting is created which combines the transport of cooling fluid and pressurized fluid in a fluidically separated manner and with limited axial installation space.

## Claims

### Claim 1

A conducting element for conducting a pressurized fluid for hydraulically actuating an actuating device of a clutch unit and for conducting a cooling fluid for cooling a clutch unit, the conducting element comprising:
a cylindrical section;
a securing section arranged essentially in a plane which extends perpendicular to a cylinder axis of the cylindrical section and mechanically connected to the cylindrical section;
a pressurized fluid channel that extends essentially radially to the cylinder axis is formed in the securing section and is configured to transport pressurized fluid radially inward for supplying a hydraulic actuating device that is arrangeable on or in the securing section; and
wherein the securing section on an axial outside forms a flow line element that extends essentially radially to the cylinder axis and is configured to transport cooling fluid radially inward;
at least one cooling fluid channel formed in the cylindrical section with at least one axial direction component;
wherein the flow line element is fluidically connected to the cooling fluid channel and is adapted to supply at least one of the clutch unit or an electric machine that is arrangeable in the surroundings of the conducting element with cooling fluid.

### Claim 2 (depends on 1)

The conducting element according to claim 1, wherein the securing section forms a hollow-cylindrical space adapted for forming an annular actuating cylinder of the actuating device and is adapted to receive an annular piston, and the pressurized fluid channel is fluidically connected to the hollow-cylindrical space in order to conduct a pressurized fluid into the hollow-cylindrical space to move the piston arranged there.

### Claim 3 (depends on 1)

The conducting element according to claim 1, wherein the securing section, at least in some regions, forms a circumferential channel on a radial outside thereof which is fluidically connected to the pressurized fluid channel.

### Claim 4 (depends on 1)

The conducting element according to claim 1, wherein the flow line element comprises a depression in the axial outside of the securing section.

### Claim 5 (depends on 1)

The conducting element according to claim 1, further comprising a circumferential annular groove for transferring fluid to the flow line element arranged on the axial outside of the securing section, and the annular groove is fluidically connected to the flow line element.

### Claim 6 (depends on 1)

The conducting element according to claim 1, wherein the flow line element is fluidically connected to multiple cooling fluid channels.

### Claim 7 (depends on 4)

The conducting element according to claim 4, further comprising a sealing washer arranged axially on the axial outside of the securing section and, at least in some regions, the sealing washer abuts the axial outside of the securing section, and the sealing washer comprises a fluid line recess that has a contour formed at least around the flow line element in the axial direction.

### Claim 8 (depends on 1)

The conducting element according to claim 1, wherein the cooling fluid channel comprises a hollow cylinder and, in addition to the axial direction component thereof in the cylindrical section, also includes a radial direction component, and the cooling fluid channel approaches the cylinder axis as a distance from the securing section increases.

### Claim 9 (depends on 1)

A hybrid module for a motor vehicle for coupling an internal combustion engine as well as a transmission, the hybrid module comprising an electric machine, a hybrid module housing, as well as a conducting element according to claim 1, rigidly connected thereto, and at least one pressure line for supplying a pressurized fluid and a cooling line for supplying a cooling fluid to the conducting element, wherein the pressure line is fluidically connected to the pressurized fluid channel in the securing section and the cooling line is fluidically connected to the flow line element.

### Claim 10 (depends on 9)

A drive assembly comprising a hybrid module according to claim 9, a drive unit, and a transmission, wherein the hybrid module is mechanically connected to the drive unit and the transmission via at least one clutch unit of the hybrid module.

### Claim 11

A conducting element for conducting a pressurized fluid for hydraulically actuating an actuating device of a clutch unit and for conducting a cooling fluid for cooling a clutch unit, the conducting element comprising:
a cylindrical section;
a securing section arranged perpendicular to a cylinder axis of the cylindrical section and connected to the cylindrical section;
a hydraulic actuating device arranged in the securing section;
a pressurized fluid channel that extends radially to the cylinder axis is formed in the securing section and is configured to transport pressurized fluid radially inward for supplying the hydraulic actuating device;
wherein the securing section on an axial outside thereof includes a flow line element that extends essentially radially to the cylinder axis and is configured to transport cooling fluid radially inward;
at least one cooling fluid channel formed in the cylindrical section that extends axially;
wherein the flow line element is fluidically connected to the cooling fluid channel and is adapted to supply at least one of the clutch unit or an electric machine that is arrangeable in the surroundings of the conducting element with cooling fluid.

### Claim 12 (depends on 11)

The conducting element of claim 11, wherein the securing section includes a hollow-cylindrical space that forms an annular actuating cylinder of the actuating device, and an annular piston is located in the annular actuating cylinder, wherein the pressurized fluid channel is fluidically connected to the hollow-cylindrical space in order to conduct pressurized fluid into the hollow-cylindrical space to move the annular.

### Claim 13 (depends on 11)

The conducting element of claim 11, wherein the flow line element comprises a depression in the axial outside of the securing section.

### Claim 14 (depends on 13)

The conducting element of claim 13, further comprising a sealing washer arranged axially on the axial outside of the securing section, and the sealing washer comprises a fluid line recess that has a contour formed at least around the flow line element in the axial direction.

### Claim 15 (depends on 11)

The conducting element of claim 11, further comprising a circumferential annular groove for transferring to the flow line element arranged on the axial outside of the securing section, and the annular groove is fluidically connected to the flow line element.

### Claim 16 (depends on 11)

The conducting element of claim 11, wherein the flow line element is fluidically connected to multiple cooling fluid channels.

### Claim 17 (depends on 11)

The conducting element of claim 11, wherein the cooling fluid channel comprises a hollow cylinder that extends axially and radially such that as a distance from the securing section increases the cooling fluid channel gets closer to the cylinder axis.

### Claim 18 (depends on 11)

The conducting element of claim 11, further comprising a circumferential annular groove for transferring fluid to the flow line element arranged on the axial outside of the securing section, and the annular groove is fluidically connected to the flow line element.
