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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.:

US 12546324 B1

PDFFull Text
Date of Patent:
Feb. 10, 2026

Filed:

Feb. 25, 2022

Electric compressor

Applicant:

Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;

Inventors:

Tsuyoshi Kitamura, Tokyo, JP;

Byeongil An, Kanagawa, JP;

Makoto Ogawa, Kanagawa, JP;

Naomichi Shibata, Kanagawa, JP;

Hokuto Isoda, Tokyo, JP;

Yasutaka Aoki, Tokyo, JP;

Assignee:

MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;

Attorney:

BIRCH, STEWART, KOLASCH & BIRCH, LLP

Primary Examiner:

Jesse S Bogue

Int. Cl.
CPC ...
F04D 17/12 (2006.01); F04D 25/06 (2006.01); F04D 27/00 (2006.01); F04D 29/056 (2006.01); F04D 29/057 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
F04D 17/122 (2013.01); F04D 25/06 (2013.01); F04D 27/003 (2013.01); F04D 27/009 (2013.01); F04D 29/056 (2013.01); F04D 29/057 (2013.01); F04D 29/4206 (2013.01); F04D 29/584 (2013.01);
Abstract

This electric compressor comprises: a housing that includes a stator having a cylindrical shape; a rotating shaft that is disposed inside the housing and that has a rotor facing the stator; a low pressure wheel that is fixed to one axial side of the rotating shaft; a high pressure wheel that is fixed to the other axial side of the rotating shaft; a low pressure side air bearing that rotatably supports, in the housing, a low pressure side shaft section of the rotating shaft; a high pressure side air bearing that rotatably supports, in the housing, a high pressure side shaft section of the rotating shaft; a first air flow path that supplies compressed air from the housing to either one of the low pressure side air bearing and the high pressure side air bearing; a second air flow path that branches from the first air flow path and that supplies the compressed air to the other of the low pressure side air bearing and the high pressure side air bearing; and an air flow rate adjustment device that adjusts a flow rate of the compressed air flowing in the first air flow path and the second air flow path.

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