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. 23, 2010
Filed:
Mar. 05, 2007
Tamotsu Kawamura, Shioya-gun, JP;
Hirofumi Atarashi, Shioya-gun, JP;
Masaaki Kaizuka, Utsunomiya, JP;
Shoei Abe, Kawachi-gun, JP;
Kazuyuki Iwata, Utsunomiya, JP;
Masato Fujioka, Kawachi-gun, JP;
Tamotsu Kawamura, Shioya-gun, JP;
Hirofumi Atarashi, Shioya-gun, JP;
Masaaki Kaizuka, Utsunomiya, JP;
Shoei Abe, Kawachi-gun, JP;
Kazuyuki Iwata, Utsunomiya, JP;
Masato Fujioka, Kawachi-gun, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
This electric motor is provided with an inner periphery side rotor, an outer periphery side rotor, and a rotating device that can change a relative phase between these rotors by rotating at least one of them about a rotational axis thereof. The rotating device is provided with a first member integrally and rotatably provided to the outer periphery side rotor, and a second member integrally fixed on an inside of the inner periphery side rotor which together with the first member defines a pressure chamber on the inside of the inner periphery side rotor. The rotating device changes a relative phase between the inner periphery side rotor and the outer periphery side rotor by supplying a hydraulic fluid to the pressure chamber. The rotating device is further provided with a linking passage that leaks the hydraulic fluid supplied to the pressure chamber to an outside of the pressure chamber.