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:
Sep. 11, 2012
Filed:
Mar. 30, 2009
Kazutoshi Omagari, Anjo, JP;
Teruhito Fukuoka, Anjo, JP;
Kenji Nagai, Anjo, JP;
Naruhito Nagase, Anjo, JP;
Youhei Habata, Toyota, JP;
Hiroya Mizuta, Toyota, JP;
Masaharu Tanaka, Toyota, JP;
Kazutoshi Omagari, Anjo, JP;
Teruhito Fukuoka, Anjo, JP;
Kenji Nagai, Anjo, JP;
Naruhito Nagase, Anjo, JP;
Youhei Habata, Toyota, JP;
Hiroya Mizuta, Toyota, JP;
Masaharu Tanaka, Toyota, JP;
Aisin AW Co., Ltd., Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
An oil seal for sealing a hollow rotary shaft in a power transmission apparatus, wherein the rotary shaft is formed with an internal flow passage through which oil flows and constituted such that the oil flies out as the rotary shaft rotates, including: a fixed portion that is fixedly attached to a case of the power transmission apparatus; a seal portion that seals the rotary shaft at a position that is axially offset position from the fixed portion and allows the rotary shaft to rotate; and a radiator portion that is formed from a metallic material between the fixed portion and the seal portion, receives the oil that flies out as the rotary shaft rotates, and dissipates heat generated by the seal portion by exchanging heat with the oil.