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. 06, 2026
Filed:
Dec. 11, 2023
Mitsubishi Heavy Industries Compressor Corporation, Hiroshima, JP;
Akihiro Nakaniwa, Tokyo, JP;
Hideki Nagao, Hiroshima, JP;
MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION, Hiroshima, JP;
Abstract
An impeller includes: a disc having a disc shape centered on an axis; a cover disposed away from the disc in an axial direction in which the axis extends; and a plurality of blades connecting the disc and the cover and disposed at intervals in a rotational direction around the axis. Each of the plurality of blades includes: a main vane extending rearward in the rotational direction as the main vane extends from an inner side toward an outer side in a radial direction centered on the axis, and a sub-vane disposed in front of the main vane in the rotational direction at a distance from the main vane, the sub-vane including a leading edge positioned outside a leading edge of the main vane in the radial direction. The main vane has a lean angle of 0 degrees or more and 20 degrees or less.