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:
Jul. 13, 2021
Filed:
Nov. 05, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Tatsuya Saito, Gotemba, JP;
Yohei Habata, Susono, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16D 13/74 (2006.01); F16D 48/02 (2006.01); F16D 25/12 (2006.01);
U.S. Cl.
CPC ...
F16H 57/0473 (2013.01); F16D 13/74 (2013.01); F16D 48/02 (2013.01); F16D 25/123 (2013.01); F16D 2300/06 (2013.01); F16D 2500/70448 (2013.01);
Abstract
A lubrication system for a power transmission unit that supplies oil to a starting clutch in an appropriate amount irrespective of an engagement state of the starting clutch. When the friction clutch is completely engaged or disengaged, a first control valve is brought into a low inflow rate mode, and the second control valve is brought into a low outflow rate mode. When the friction clutch is engaged while causing a slip the first control valve is brought into a high inflow rate mode, and the second control valve is brought a high outflow rate mode.