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:
Feb. 04, 2019
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Teng Cao, Cambridge, GB;
Isao Tomita, Tokyo, JP;
Liping Xu, Cambridge, GB;
Tadashi Kanzaka, London, GB;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
An impeller wheel according to an embodiment includes a hub, a plurality of long blades disposed on a circumferential surface of the hub, the plurality of long blades extending from an inlet portion to an outlet portion of fluid and a plurality of short blades each disposed on the circumferential surface of the hub, the plurality of short blades extending from a downstream side of leading edges of the plurality of the long blades to the outlet portion in a flow passage formed between adjacent long blades of the plurality of long blades. In the impeller wheel, an expression β<βis satisfied, where βand βare respectively blade angles on tip side edges of the plurality of long blades and the plurality of short blades at the outlet portion.