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:
Jan. 28, 2025
Filed:
Feb. 14, 2023
Subaru Corporation, Tokyo, JP;
Norio Oowada, Tokyo, JP;
Hiroomi Kobayashi, Tokyo, JP;
Taichi Murai, Tokyo, JP;
Takeshi Yoneda, Tokyo, JP;
Yosuke Takebayashi, Tokyo, JP;
Minoru Suyama, Tokyo, JP;
Tatsuya Takayanagi, Tokyo, JP;
Akihiro Nabeshima, Tokyo, JP;
Kaoru Sugano, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A front-rear wheel driving force distribution device includes a center differential and a limited slip differential. The limited slip differential includes a first clutch, a second clutch, a first piston, a second piston, and a one-way clutch provided between the first clutch and a rear propeller shaft. If the second clutch is engaged by the second piston, the propeller shaft on the rear side rotates at increased speed as compared with a case where the first clutch is engaged by the first piston. The one-way clutch couples the first clutch and the rear propeller shaft if a number of rotations of the first clutch is same as or higher than a number of rotations of the rear propeller shaft, and idles if the number of rotations of the first clutch is lower than the number of rotations of the rear propeller shaft.