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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 9458909 B1

PDFFull Text
Date of Patent:
Oct. 04, 2016

Filed:

Dec. 25, 2013

Drive power transmission device

Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Takuhiro Sugimoto, Isehara, JP;

Shigeru Ishii, Atsugi, JP;

Kazuhiro Miyachi, Yamato, JP;

Takashi Kuwahara, Chigasaki, JP;

Assignee:

Nissan Motor Co., Ltd., Yokohama, JP;

Attorney:

Global IP Counselors, LLP

Primary Examiner:

Jacob S Scott

Int. Cl.
CPC ...
F16H 3/48 (2006.01); F16H 37/02 (2006.01); F16H 57/04 (2010.01); F16H 61/12 (2010.01); F16D 13/74 (2006.01); F16D 13/52 (2006.01); F16D 25/0638 (2006.01); F16D 25/12 (2006.01); F16D 66/00 (2006.01);
U.S. Cl.
CPC ...
F16H 3/48 (2013.01); F16D 13/52 (2013.01); F16D 13/74 (2013.01); F16H 37/021 (2013.01); F16H 57/043 (2013.01); F16H 57/0473 (2013.01); F16H 57/0484 (2013.01); F16H 61/12 (2013.01); F16D 25/0638 (2013.01); F16D 25/123 (2013.01); F16D 2066/001 (2013.01); F16D 2300/0214 (2013.01); F16H 2037/026 (2013.01); F16H 2061/1276 (2013.01);
Abstract

A drive power transmission device is provided that either disengages a first friction engagement element or a second friction engagement element when the other is engaged. The drive power transmission device detects the temperature of lubricating oil flowing in each friction engagement element using a temperature sensor. The drive power transmission device selectively disengages either a forward clutch or a reverse brake disengages when the other is engaged. The forward clutch and the reverse brake overlap axially, and are layered radially in an inner/outer arrangement. The temperature sensor is positioned at the periphery of the forward clutch and the reverse brake. A lubricating oil pathway is formed such that lubricating oil for cooling the forward clutch and the reverse brake passes through the forward clutch and the reverse brake in the radial direction from the inside of the forward clutch and the reverse brake to the temperature sensor.

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