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. 14, 2015
Filed:
Apr. 28, 2009
Yoshihiro Mizuno, Toyota, JP;
Koichi Tanaka, Okazaki, JP;
Yusuke Ogata, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
An oil passage structure of a chain-driven oil pump includes three lines of oil passages for supplying oil from the center support to the torque converter, a first oil passage for supplying oil to the torque converter through the inside of an input shaft of the torque converter, a second oil passage for supplying oil to the torque converter through a space defined by the outer periphery surface of the input shaft and the inner periphery surface of a stator shaft, and a third oil passage for supplying oil to the torque converter by bypassing the drive sprocket. The third oil passage is provided on the outer periphery side of the drive sprocket and in a position where it does not interfere with the operation of a chain. Accordingly, it is possible to utilize the flex lock-up to a maximum extent, and to reduce the diameter of the sprocket.