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:
Feb. 28, 2023
Filed:
Dec. 25, 2018
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Hideaki Sugishita, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Toyoharu Nishikawa, Tokyo, JP;
Kei Nakanishi, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An exhaust hood (Ec) of the present invention is provided with an inner casing (), an outer casing (), and a diffuser (). The inner casing () surrounds a rotor from the outside in a radial direction, and forms a first space () in which a fluid flows in an axial direction (Da) between the rotor and the inner casing (). The diffuser () is provided with a bearing cone () that has a diameter that gradually widens moving towards an axial downstream side (Dad) and forms a cylindrical shape extending to the axial downstream side (Dad) to be continuous with the outer circumferential surface of a rotor shaft that forms the first space (). An end edge () on the axial downstream side (Dad) of the bearing cone () forms an oval shape in which, in a direction orthogonal to an axial line (Ar), a distance (R) between the axial line (Ar) and a second cone end part () of a second side (Dan) is greater than a distance (R) between the axial line (Ar) and a first cone end part () of a first side (Dex).