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. 21, 2017
Filed:
Sep. 17, 2013
Jatco Ltd, Fuji-shi, Shizuoka, JP;
Hisashi Saito, Shizuoka, JP;
Hideharu Yamamoto, Fujinomiya, JP;
Shinya Mochiyama, Fuji, JP;
Atsushi Maeda, Fujinomiya, JP;
JATCO LTD, Fuji-Shi, JP;
Abstract
A friction engagement element (CLx) is provided radially outside of a peripheral wall portion () of a clutch drum () and configured to be engaged by a piston (). A piston () is provided radially inside of the peripheral wall portion () and configured to engage and a friction engagement element (CLz). A first peripheral wall portion () of the peripheral wall portion () includes through-holes () communicating a radially inside of the first peripheral wall portion () with a radially outside thereof. A through-hole () is provided radially inside of the piston (). The piston () includes a communication passage () radially passing through the piston () and communicating the through-hole () with the through-holes () such that lubricating oil is supplied through the communication passage () and the through-holes () to the radially outside of the clutch drum () when the piston () is in an initial position.