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:
Feb. 09, 2021
Filed:
Feb. 06, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Takashi Hirano, Atsugi, JP;
Masaharu Kitamura, Atsugi, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka, JP;
Abstract
Balancer device has upper and lower housingsandhaving therein an accommodation section, a pair of drive and driven side shaftsandwhich are rotatably supported by four plain bearingstoprovided in the accommodation section and to which a rotation force is transmitted from a crankshaft, and arc band-shaped thrust receiving portionsandwhich thrust flange portions of drive and driven gearsandprovided at the drive and driven side shafts respectively can contact from a thrust direction. First and second oil storing groovesand, groove passagesandand vertical groove passagestoare formed at the thrust receiving portions on a gravity direction lower side with respect to a meshing portion of the both gears. With this configuration, it is possible to suppress occurrence of abrasion of the thrust receiving portion.