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.
Patent No.:
Date of Patent:
Mar. 02, 2010
Filed:
Apr. 30, 2007
Jun Masuda, Utsunomiya, JP;
Ryo Ninomiya, Utsunomiya, JP;
Jun Masuda, Utsunomiya, JP;
Ryo Ninomiya, Utsunomiya, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A motor includes inner-peripheral and outer-peripheral rotors which rotate coaxially and have permanent magnets along a circumference of each rotor; and a phase varying device for relatively rotating the rotors so as to vary a relative phase therebetween. The device has a forward-angle working chamber for relatively rotating the inner-peripheral rotor forward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a backward-angle working chamber for relatively rotating the inner-peripheral rotor backward with respect to the outer-peripheral rotor, by using pressure of supplied working fluid; a passage switching valve for performing distribution with respect to supply and drainage of the working fluid between the working chambers in accordance with the position of a spur; and an electromagnetic pressure control valve for controlling pressure of the working fluid, and for controlling the position of the spur in the passage switching valve based on the controlled pressure.