Method and apparatus for measurement and control of linear actuator
US-2016344312-A1 · Nov 24, 2016 · US
Electro-magnetic coupling system
US9190892B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9190892-B2 |
| Application number | US-201313847739-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 20, 2013 |
| Priority date | May 3, 2012 |
| Publication date | Nov 17, 2015 |
| Grant date | Nov 17, 2015 |
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Abstract
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An electro-magnetic coupling system for transferring torque between a pair of coaxial spools of a gas turbine engine is provided. The system includes a first rotor rotatable with one of the spools, a second rotor rotatable with the other of the spools, and a stator. The first and second rotors and the stator are coaxial with each other. The second rotor operably couples the first rotor and the stator. The first rotor carries a plurality of magnetic flux-producing formations which produce a first magnetic field. The stator carries a plurality of electrical winding coils which are energisable to generate a second magnetic field. The second rotor carries an arrangement of interpoles which modulate the first and second magnetic fields such that the modulated fields interact to transfer torque between the spools.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electro-magnetic coupling system for transferring torque between a pair of coaxial spools of a gas turbine engine, the system including a first rotor rotatable with one of the spools, a second rotor rotatable with the other of the spools, and a stator, the first and second rotors and the stator being coaxial with each other, and the second rotor operably coupling the first rotor and the stator; wherein: the first rotor carries a plurality of magne…
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Classifications
Electricity · mapped topic
Mechanical Engineering · mapped topic
- H02K49/102Primary
Electricity · mapped topic
Electricity · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9190892B2 cover?
- An electro-magnetic coupling system for transferring torque between a pair of coaxial spools of a gas turbine engine is provided. The system includes a first rotor rotatable with one of the spools, a second rotor rotatable with the other of the spools, and a stator. The first and second rotors and the stator are coaxial with each other. The second rotor operably couples the first rotor and the …
- Who is the assignee on this patent?
- Rolls Royce Plc
- What technology area does this patent fall under?
- Primary CPC classification H02K49/102. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).