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:
Sep. 26, 2023
Filed:
Dec. 23, 2020
Applicants:
Jatco Ltd, Fuij, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Inventors:
Assignees:
Jatco Ltd, Fuji, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16H 57/037 (2012.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F16H 57/0415 (2013.01); F16H 57/037 (2013.01); F16H 57/0482 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02052 (2013.01);
Abstract
A power transmission device includes a motor, a gear mechanism connected downstream of the motor and lubricated by oil, and a box. The box has a wall part that covers an outer circumference of the gear mechanism, and a jacket part that covers an outer circumference of the wall part. A cooling chamber, in which cooling liquid is introduced, is formed between the wall part and the jacket part. The cooling chamber includes a portion that overlaps with the gear mechanism when seen from a radial direction, and a portion that overlaps the gear mechanism when seen from an axial direction.