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.

Date of Patent:
Oct. 21, 2025

Filed:

Oct. 06, 2021
Applicant:

Ntn Corporation, Osaka, JP;

Inventors:

Naotsugu Kitayama, Shizuoka, JP;

Masahiro Kawai, Shizuoka, JP;

Kenji Mizushiri, Shizuoka, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 13/06 (2006.01); F04D 25/06 (2006.01); H02K 5/22 (2006.01);
U.S. Cl.
CPC ...
F04D 13/0686 (2013.01); F04D 13/06 (2013.01); F04D 25/068 (2013.01); H02K 5/225 (2013.01);
Abstract

An electric oil pump 1 includes: a pump unit 2 that generates hydraulic pressure; a motor unit 3 that drives the pump unit; a substrate 4 on which a control circuit for controlling the motor unit 3 is formed by a plurality of electronic components 41; and a housing 5 equipped with a pump accommodation unit 53 that houses the pump unit, a motor accommodation unit 54 that houses the motor unit, and a substrate accommodation unit 55 that houses the substrate. The substrate 4 is disposed along the tangential direction of a circle about the axis of the motor unit 3. The pump accommodation unit 53, the motor accommodation unit 54, and the substrate accommodation unit 55 are integrally formed.


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