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:
Jun. 07, 2022
Filed:
Dec. 15, 2020
Applicant:
Coavis, Sejong-si, KR;
Inventors:
Assignee:
COAVIS, Sejong-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01); F04D 29/043 (2006.01); F04D 29/22 (2006.01); F04D 13/06 (2006.01); F04D 29/62 (2006.01); F04D 29/041 (2006.01); F04D 29/046 (2006.01); F04D 29/047 (2006.01); F04D 13/02 (2006.01); F04D 29/20 (2006.01); F04D 29/057 (2006.01);
U.S. Cl.
CPC ...
F04D 29/426 (2013.01); F04D 13/026 (2013.01); F04D 13/06 (2013.01); F04D 13/0606 (2013.01); F04D 13/0633 (2013.01); F04D 29/043 (2013.01); F04D 29/046 (2013.01); F04D 29/047 (2013.01); F04D 29/0413 (2013.01); F04D 29/0473 (2013.01); F04D 29/057 (2013.01); F04D 29/20 (2013.01); F04D 29/22 (2013.01); F04D 29/628 (2013.01);
Abstract
Provided is an electric water pump in which a portion of a fluid discharged from the vicinity of an outer peripheral edge of an impeller flows between the impeller and a lower casing, flows between a rotor and the lower casing, flows between a shaft and the rotor along a channel formed inside the rotor, and then flows to an inlet side of the impeller such that the fluid circulates outside and inside the rotor, and thus, foreign matters contained in the fluid do not accumulate in an accommodation space between the rotor and the lower casing, and thus, efficiency and durability of a motor can be improved.