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. 05, 2013
Filed:
Sep. 08, 2009
Takahiro Yamaguchi, Kariya, JP;
Hiroyuki Shinkai, Obu, JP;
Takutou Takahashi, Nishio, JP;
Kazunori Uchiyama, Okazaki, JP;
Naoki Hakamada, Anjo, JP;
Takahiro Yamaguchi, Kariya, JP;
Hiroyuki Shinkai, Obu, JP;
Takutou Takahashi, Nishio, JP;
Kazunori Uchiyama, Okazaki, JP;
Naoki Hakamada, Anjo, JP;
Advics Co., Ltd., Aichi-pref., JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
In an inner wall surface of a casing, grooves are formed that correspond to end faces of an outer rotor and an inner rotor, and seal members are disposed within the grooves, the seal members presses against the end faces of the outer rotor and the inner rotor. Inclined portions are provided in sealing portions of resin members of seal members, the sealing portions covering a closed portion. With this configuration, an internal pressure in the closed portion causes the inclined portions to separate from an outer rotor and an inner rotor when a brake fluid pressure within the closed portion increases to the point that the brake fluid is excessively compressed, releasing the brake fluid that is inside the closed portion. It is therefore possible to prevent the brake fluid pressure from increasing excessively within the closed portion.