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:
Nov. 01, 2016
Filed:
Jan. 29, 2013
Mikuni Corporation, Tokyo, JP;
Takehiko Naiki, Iwate, JP;
MIKUNI CORPORATION, Tokyo, JP;
Abstract
An oil pump includes a housing (), a rotary shaft () which is supported by the housing, an inner rotor () which is rotated in the housing integrally with the rotary shaft, an outer rotor () which is rotated in the housing as being interlocked with the inner rotor, a rotor case () which is fitted into the housing and which contains the inner rotor and the outer rotor and supports an outer circumferential face of the outer rotor in a slidable manner, a side plate () which is arranged to be in contact with at least one annular end face of the rotor case, and an elastic member () which exerts an urging force to press the side plate to the annular end face of the rotor case. According to the above, slide resistance and operational torque can be reduced and constant side clearance can be maintained.