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:
Mar. 09, 2021
Filed:
Dec. 18, 2017
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Daisuke Kato, Novi, MI (US);
Atsushi Naganuma, Atsugi, JP;
Yasushi Watanabe, Kanagawa, JP;
Hideaki Ohnishi, Atsugi, JP;
HITACHI AUTOMOTIVE SYSTEMS, LTD., Hitachinaka, JP;
Abstract
Oil pump and oil pump-integrated balancer device each have a pump housing formed by housing bodyand cover member, pump shafthaving driven side helical gearat which thrust force occurs when transmitting rotation force and rotating a rotor by the rotation force provided from drive side helical gearthat is engaged with driven side helical gear, first and second thrust receiving portionsformed close to hole edges of bearing holesof the cover member and the housing body, and first and second thrust limiting portionsprovided at the driven side helical gear and the pump shaft, contacting the thrust receiving portions from axis direction and limiting thrust movement of the pump shaft. With this configuration, oil pump and oil pump-integrated balancer device which are capable of securing stable support of the pump shaft are provided.