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. 23, 2025
Filed:
Feb. 25, 2022
Applicant:
Musashi Seimitsu Industry Co., Ltd., Toyohashi, JP;
Inventor:
Naofumi Butta, Toyohashi, JP;
Assignee:
Musashi Seimitsu Industry Co. Ltd., Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/02 (2012.01); F16H 57/027 (2012.01); F16H 57/031 (2012.01); F16H 57/04 (2010.01); F16H 57/037 (2012.01);
U.S. Cl.
CPC ...
F16H 57/027 (2013.01); F16H 57/031 (2013.01); F16H 57/0424 (2013.01); F16H 57/0471 (2013.01); F16H 2057/02034 (2013.01); F16H 57/037 (2013.01);
Abstract
A breather structure in a power unit is provided. The power unit includes a motor and a transmission device. The transmission device includes a gear transmission mechanism and a transmission case. The transmission case and a motor case forms a unit case. The unit case includes an oil supply passage, an oil return passage, and a partition wall. One side face of the partition wall and a lid coupled to the one side face define a breather chamber. The breather chamber includes an inlet that is open to the other side face of the partition wall and that communicates with a motor space.