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:
Aug. 17, 2021
Filed:
May. 09, 2017
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
MITSUBISHI POWER, LTD., Yokohama, JP;
Abstract
A rotor machine includes a rotor which includes a recessed portion, a stator blade which includes a stator blade body and a shroud, and a fin. The recessed portion includes a recessed portion radial wall surface which extends in a radial direction, and the recessed portion radial wall surface includes a first wall surface which extends radially outward, a second wall surface which extends further radially outward than the first wall surface, and a protrusion surface which protrudes toward an upstream side in the axis direction from the first wall surface. The shroud includes a shroud radial wall surface facing a downstream side in the axis direction of the recessed portion radial wall surface, and a shroud groove portion is formed in the shroud.