# US 11,441,620 B2 · Electric clutch actuator with a one-piece housing

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

- Number: US 11,441,620 B2
- Document ID: US11441620B2
- Status: Granted
- Kind: B2
- Application number: 16/571,497
- Filed: 2019-09-16
- Published: 2020-03-19
- Granted: 2022-09-13
- Earliest claimed: 2018-09-19
- Assignees: FTE automotive GmbH
- Applicants: FTE automotive GmbH
- Inventors: Juergen Ryba; Dimitri Ostrohov; Frank Sauerteig; Michael Erdmann; Christian Sperber
- Web page: https://patentgrep.com/patent/US11441620B2

## CPC

- F16D 28/00: Electrically-actuated clutches (arrangements for synchronisation F16D23/02; clutches actuated directly by means of an electromagnet F16D27/00; automatic clutches F16D43/00 - F16D45/00; external control F16D48/00)
- F16D 23/00: Details of mechanically-actuated clutches not specific for one distinct type
- H02K 5/06: Cast metal casings
- H02K 7/06: Means for converting reciprocating motion into rotary motion or vice versa
- H02K 7/108: with friction clutches
- H02K 7/116: with gears
- H02K 21/14: with magnets rotating within the armatures
- F16D 2023/123: {Clutch actuation by cams, ramps or ball-screw mechanisms}
- F16D 2300/18: Sensors; Details or arrangements thereof
- F16H 25/2214: {with elements for guiding the circulating balls}
- H02K 2213/12: Machines characterised by the modularity of some components
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- F16H: GEARING

## Abstract

An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.

## Claims

### Claim 1

An electric clutch actuator comprising:
an electric motor;
a gear mechanism; and
a spindle which is coupled to the electric motor via the gear mechanism,
wherein the spindle, the gear mechanism, and the electric motor are received in a housing configured in one piece,
wherein the electric motor has a stator which is fastened in a cylindrical stator receptacle in the housing,
wherein the stator is adhesively bonded into the stator receptacle or screwed into the stator receptacle,
wherein the stator receptacle has a bottom wherein a mounting opening is provided which is configured concentrically with the stator receptacle, and
wherein a sensor which measures a rotation of a shaft of the electric motor is disposed in a region of the mounting opening, the sensor being arranged on a circuit board fixedly connected to a holder.

### Claim 2 (depends on 1)

The electric clutch actuator according to claim 1, wherein the gear mechanism has a base plate which is inserted into an axial end of the housing.

### Claim 3 (depends on 2)

The electric clutch actuator according to claim 2, wherein a cover is provided which closes the housing on an axial side, Wherein the base plate is braced against the housing by the cover.

### Claim 4 (depends on 1)

The electric clutch actuator according to claim 1, wherein the housing consists of an aluminium die-cast material.

### Claim 5 (depends on 1)

The electric clutch actuator according to claim 1, wherein a sliding guide for a carriage is provided on the housing and mounted on the spindle in a rotationally fixed manner.

### Claim 6 (depends on 1)

The electric clutch actuator according to claim 1, wherein the stator is one of a 12V stator and a 24V stator which have identical external dimensions.

### Claim 7 (depends on 1)

The electric clutch actuator according to claim 1, wherein a plug interacts with a holding opening in the holder, the plug being inserted into the mounting opening and including a body part with outer dimensions corresponding to an inside diameter of the mounting opening, and a latching extension that is compressible in a radial direction and engaged in the holding opening.