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:
Apr. 07, 2015
Filed:
Nov. 18, 2010
Mikio Iwase, Anjo, JP;
Tomohide Suzuki, Kariya, JP;
Naoya Jinnai, Anjo, JP;
Tatsuya Okishima, Chiryni, JP;
Toshihiko Kamiya, Toyota, JP;
Terufumi Miyazaki, Toyota, JP;
Yukihiko Ideshio, Nissin, JP;
Mikio Iwase, Anjo, JP;
Tomohide Suzuki, Kariya, JP;
Naoya Jinnai, Anjo, JP;
Tatsuya Okishima, Chiryni, JP;
Toshihiko Kamiya, Toyota, JP;
Terufumi Miyazaki, Toyota, JP;
Yukihiko Ideshio, Nissin, JP;
Aisin AW Co., Ltd., Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A rotary electric drive device for a vehicle configured to couple a combustion engine to a wheel. The drive device includes an engagement device selectively drivingly connecting the input member with the rotary electric machine and a fluid coupling. The engagement device includes a differential pressure generating chamber that receives oil supply so as to apply hydraulic pressure to a side of the pressing member opposite to a side to which hydraulic pressure for operation is applied. A body portion housing chamber housing a body portion of the fluid coupling and the differential pressure generating chamber are structured as oil chambers independent of each other. The drive device includes a coupling supply oil passage supplying oil to the body portion housing chamber and a differential pressure supply oil passage supplying the oil to the differential pressure generating chamber.