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:
Mar. 02, 2021
Filed:
Oct. 26, 2017
Hanwha Powersystems Co., Ltd, Changwon-si, KR;
Robert Pelton, Houston, TX (US);
Se Woong Jung, Houston, TX (US);
HANWHA POWER SYSTEMS CO., LTD, Changwon-si, KR;
Abstract
A closed impeller includes: a housing provided with an opening; an insert inserted into one side of the opening; and an impeller body inserted into the other side of the opening, and including a plurality of blades and a shroud covering the plurality of blades, wherein the insert is provided with an inflow channel guiding a fluid into an inlet of the impeller body, and wherein a clearance between an outer surface of the insert and an inner surface of the housing forms a circulation flow channel connecting the other end of the inflow channel with a portion where one end of the inflow channel meets the inlet of the impeller body.