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:
Sep. 11, 2018
Filed:
Nov. 22, 2012
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara-shi, Kanagawa, JP;
Byeongil An, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Noriyuki Hayashi, Tokyo, JP;
Naomichi Shibata, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Kanagawa, JP;
Abstract
The present invention provides a supercharger with an electric motor having improved cooling performance for bearings, in the case of employing a grease lubrication system as a lubrication system of the bearings. A supercharger with an electric motor includes: a rotary shaft; a compressor wheel; a compressor housing for housing the compressor wheel; an electric motor including a motor rotor and a motor stator, and giving rotation force to the rotary shaft; a motor housing, for housing the electric motor; a first grease-sealed bearing for rotatably supporting the rotary shaft; and a bearing housing for housing the first grease-sealed bearing, and disposed between the compressor housing and the motor housing. Inside the bearing housing, a cooling passage through which a cooling medium flows is provided in a circumferential direction on an outer circumferential side of the first grease-sealed bearing.