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:
Oct. 13, 2020
Filed:
Aug. 14, 2018
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Takeshi Sano, Tokyo, JP;
Taiki Asahara, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/68 (2006.01); F04D 29/22 (2006.01); F04D 17/08 (2006.01); F04D 29/44 (2006.01); F04D 29/28 (2006.01); F04D 1/06 (2006.01);
U.S. Cl.
CPC ...
F04D 29/688 (2013.01); F04D 1/063 (2013.01); F04D 17/08 (2013.01); F04D 29/2261 (2013.01); F04D 29/2266 (2013.01); F04D 29/2272 (2013.01); F04D 29/284 (2013.01); F04D 29/44 (2013.01); F04D 29/681 (2013.01); F05D 2240/14 (2013.01); F05D 2250/184 (2013.01);
Abstract
A centrifuge turbo machinery includes an impeller which rotates about an axis to pressure-feed fluid flowing along the axis to an outer side in a radial direction, and a casing which accommodates the impeller and has a facing surface facing the impeller in an axial direction. A convex portion relatively close to the impeller and extending in the radial direction and a concave portion relatively spaced apart from the impeller and extending in the radial direction are alternately and continuously formed on the facing surface in a circumferential direction.