Actuation device for a clutch device

US2016204673A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016204673-A1
Application numberUS-201414913844-A
CountryUS
Kind codeA1
Filing dateOct 20, 2014
Priority dateNov 13, 2013
Publication dateJul 14, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An actuation device for a clutch device is provided having a magnetic field brake with a brake stator and a brake rotor. This magnetic field brake can be operated as an eddy-current brake and/or as a hysteresis brake.

First claim

Opening claim text (preview).

1 . An actuation device for a clutch device, the actuation device comprising a magnetic field brake with a brake stator and a brake rotor, the magnetic field brake is operated as at least one of an eddy-current brake or as a hysteresis brake. 2 . The actuation device according to claim 1 , wherein the brake rotor comprises a first rotor section made from a first material and a second rotor section made from a second material. 3 . The actuation device according to claim 2 , wherein the first material has low electric resistance in comparison to the second material. 4 . The actuation device according to claim 2 , wherein the second material is a magnetically semi-resistant material. 5 . The actuation device according to claim 2 , wherein the first rotor section forms a carrier for the second rotor section. 6 . The actuation device according to claim 2 , wherein the second rotor section has an annular form and is compressed with the first rotor section. 7 . The actuation device according to claim 1 , wherein the brake stator comprises an internal stator with a central coil and an external stator without a coil. 8 . The actuation device according to claim 7 , wherein the brake rotor has a cup-shaped form with a floor section and a wall section, and the wall section is arranged between the internal stator and the external stator. 9 . The actuation device according to claim 7 , wherein the internal stator comprises a first claw terminal with first terminal claws and a second claw terminal with second terminal claws, the central coil is encompassed by the first claw terminal with the first terminal claws and the second terminal claws with the second terminal claws, and the external stator has a flat-annular form. 10 . The actuation device according to claim 7 , wherein the brake stator comprises a first claw terminal with a first terminal claw, forming the external stator, and a second claw terminal with second terminal claws, forming the internal stator, and the central coil is encompassed by the second claw terminal with the second terminal claws.

Assignees

Inventors

Classifications

  • H02K7/104Primary

    with eddy-current brakes · CPC title

  • Machines with one rotor and two stators · CPC title

  • characterised by the magnetic material · CPC title

  • Dynamo-electric clutches; Dynamo-electric brakes · CPC title

  • Structural details of electrical machines · CPC title

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Frequently asked questions

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What does patent US2016204673A1 cover?
An actuation device for a clutch device is provided having a magnetic field brake with a brake stator and a brake rotor. This magnetic field brake can be operated as an eddy-current brake and/or as a hysteresis brake.
Who is the assignee on this patent?
Schaeffler Technologies Ag
What technology area does this patent fall under?
Primary CPC classification H02K7/104. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jul 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).