The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 23, 2011

Filed:

Mar. 06, 2007
Applicants:

Kazuyuki Iwata, Utsunomiya, JP;

Hiromitsu Sato, Utsunomiya, JP;

Naohisa Morishita, Utsunomiya, JP;

Satoru Shinzaki, Utsunomiya, JP;

Tamotsu Kawamura, Sakura, JP;

Masato Fujioka, Utsunomiya, JP;

Inventors:

Kazuyuki Iwata, Utsunomiya, JP;

Hiromitsu Sato, Utsunomiya, JP;

Naohisa Morishita, Utsunomiya, JP;

Satoru Shinzaki, Utsunomiya, JP;

Tamotsu Kawamura, Sakura, JP;

Masato Fujioka, Utsunomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 16/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A motor is provided with: an inner rotor having inner permanent magnets arranged in a peripheral direction and an outer rotor having outer permanent magnets arranged in the peripheral direction, the mutual axes of rotation of the inner rotor and the outer rotor being arranged coaxially, and a rotating device capable of making at least one of the inner rotor and the outer rotor rotate around the axes of rotation so as to change the relative phase between the rotors, wherein the rotating device includes: a first member which is integrally and rotatably provided with respect to the outer rotor; and a second member which is integrally and rotatably provided with respect to the inner rotor and which defines pressure chambers inside the inner rotor with the first member, and wherein a working fluid is supplied to the pressure chambers, thereby changing the relative phase between the rotors.


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