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:
Jul. 26, 2022
Filed:
Apr. 23, 2020
Denso Corporation, Kariya, JP;
Akihiro Kimura, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
In a stator assembly, each stator core includes a plurality of protrusions and a plurality of recesses, which are provided periodically in a circumferential direction on an outer periphery. The protrusion abuts at least a part of an inner wall of a housing in the circumferential direction. The recess is smaller than the protrusion in a radial direction and has a gap relative to the inner wall of the housing. Adjacent stator cores are shifted in the circumferential direction by a predetermined shift angle such that a periodic unit formed of at least one protrusion and at least one recess appear alternately in the axial direction. The protrusion has a radius of curvature smaller than a radius of a circumscribed circle at a part abutting the inner wall of the housing.