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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.:

US 9688140 B1

PDFFull Text
Date of Patent:
Jun. 27, 2017

Filed:

Dec. 15, 2014

Drive force distribution device for automobile

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Daiki Saegusa, Wako, JP;

Sachi Fujinuma, Wako, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

David J Hlavka

Int. Cl.
CPC ...
F16D 25/08 (2006.01); B60K 17/16 (2006.01); F16D 25/12 (2006.01); F16H 48/22 (2006.01); B60K 17/348 (2006.01); F16D 13/52 (2006.01); F16D 21/00 (2006.01); F16D 25/06 (2006.01); F16H 48/19 (2012.01); F16H 48/32 (2012.01); F16H 48/34 (2012.01);
U.S. Cl.
CPC ...
B60K 17/165 (2013.01); B60K 17/348 (2013.01); F16D 13/52 (2013.01); F16D 21/00 (2013.01); F16D 25/06 (2013.01); F16D 25/12 (2013.01); F16H 48/19 (2013.01); F16H 48/22 (2013.01); F16H 48/32 (2013.01); F16H 2048/343 (2013.01);
Abstract

A drive force distribution device for an automobile is provided in which a hydraulic clutch includes an annular oil groove opposing a clutch piston in an inner wall face of a clutch oil chamber, and a hydraulic oil supply port and a hydraulic oil discharge port communicating with the oil groove. Since when the hydraulic oil supply port of the oil groove is a starting end and the hydraulic oil discharge port of the oil groove is a finishing end, a cross-sectional area of a longer oil groove section of the annular oil groove is set to be larger than a cross-sectional area of a shorter oil groove section, the flow path resistance of the oil groove sect of the respective hydraulic clutches made to be uniform. This enables smooth operation, improvement of the engagement responsiveness and uniformization of the engagement responsiveness of the hydraulic clutches to be achieved.

Find Patent Forward Citations

Saegusa, Daiki. (2017). Drive force distribution device for automobile (U.S. Patent No. 9688140). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9688140

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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