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. 10, 2021
Filed:
Apr. 10, 2019
Applicant:
Alkhorayef Petroleum Company Limited, Al Khobar, SA;
Inventors:
Assignee:
ALKHORAYEF PETROLEUM COMPANY LIMITED, Al Khobar, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 13/08 (2006.01); F04D 13/10 (2006.01); F04D 1/08 (2006.01); F04D 7/04 (2006.01); F04D 29/041 (2006.01); F04D 29/44 (2006.01); F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 13/086 (2013.01); F04D 1/08 (2013.01); F04D 7/04 (2013.01); F04D 13/10 (2013.01); F04D 29/0413 (2013.01); F04D 29/426 (2013.01); F04D 29/445 (2013.01);
Abstract
An electrical submersible pump (ESP) for use in a high viscosity pumping system includes a pump shaft, at least one rotating impeller including an impeller hub and one or more impeller vanes projecting from the impeller hub. Each of the one or more impeller vanes includes an impeller vane edge, and at least one stationary diffuser positioned below the at least one rotating impeller. A diffuser includes a diffuser hub and a diffuser shroud including a diffuser shroud surface. The impeller vane edge and the diffuser shroud surface are separated only by a clearance gap.