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US 2019/0296606 A1Published application
High force rotary actuator
AssigneeQM Power, Inc.
InventorCharles J. Flynn
Life of this patent
Estimating the term…
Abstract
An actuator has a first stator with four first poles, a second stator with four second poles aligned with the four first poles, a permanent magnet between the first stator and the second stator, four armatures positioned at terminal ends of the aligned four first poles and four second poles, and coils wrapped around the first stator and the second stator. A controller selectively applies current to the coils to migrate flux created by the permanent magnet through selective poles of the first stator and the second stator to selectively alter air gap sizes associated with the four armatures.
Claims19
A method comprising:
- in an actuator comprising:
- first coils wrapped around a first plurality of poles defining a first linear axis of a first stator and a second linear axis of the first stator;
- second coils wrapped around a second plurality of poles of a second stator, the second plurality of poles aligned with the first plurality of poles to form aligned poles including first linear axis aligned poles and second linear axis aligned poles;
- a permanent magnet between the first stator and the second stator;
- and
- a plurality of moving armatures, each moving armature separated from one of the aligned poles by an air gap;
- selectively applying current to the coils to control a size of a first air gap between a first moving armature and a first end of the first linear axis aligned poles to form a first linear motion and to control a second size of a second air gap between a second moving armature and a first end of the second linear axis aligned poles to form a second linear motion;
- and
- translating the first linear motion and the second linear motion to rotary motion at a shaft.
6 more elements
A method comprising:
- in an actuator comprising:
- a first stator with four first poles;
- a second stator with four second poles aligned with the four first poles;
- a permanent magnet between the first stator and the second stator;
- four armatures positioned at terminal ends of the aligned four first poles and four second poles;
- and
- coils wrapped around the first stator and the second stator;
- selectively applying current to the coils to migrate flux created by the permanent magnet through selective poles of the first stator and the second stator to selectively alter air gap sizes associated with the four armatures.
5 more elements
Dependencies are inferred from the claim text.