Linear-rotary actuators and actuator systems

Details Linear-rotary actuators and actuator systems Linear-rotary actuators and actuator systems

2011-03-01

2011-03-01

Tamai, Karl I (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S112000, C310S114000

Reexamination Certificate

active

07898120

ABSTRACT:
In an embodiment, an actuator includes a plurality of stator windings adapted to produce a first stator magnetic field that translates along a stator axis, and to produce a second stator magnetic field that rotates around the stator axis. In addition, the actuator includes a rotor, coupled to a shaft, and positioned within a central stator channel. The rotor is adapted to produce a first rotor magnetic field that translates along a shaft axis and to produce a second rotor magnetic field that rotates around the shaft axis. An actuator system includes an actuator and an actuator controller unit, which is adapted to produce actuator inputs. An embodiment of a method for controlling the actuator includes providing actuator inputs to produce a translating magnetic field in the stator, a translating magnetic field in the rotor, a rotating magnetic field in the stator, and a rotating magnetic field in the rotor.

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Machine Translation of DE 29 06 404 “Electric Motor”, Siegfried Kofink, Aug. 28, 1980.
Machine Translation of KR 2001-0064185, “Rotary Linear Motor”, Shin, HyunJung and Kim, YoungKwan, Jul. 9, 2001.
Abstract KR 2001-0064185, “Rotary Linear Motor”, Shin, HyunJung and Kim, YoungKwan, Jul. 9, 2001.
Manual Translation of DE 2 906 404, “Electric Motor”, Siegfreied Kofink, Aug. 28, 1980.
PCT International Search Report and Written Opinion of the International Searching Authority.

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