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. 30, 2026
Filed:
Apr. 24, 2024
Halliburton Energy Services, Inc., Houston, TX (US);
Michael Rimmer, Frimley, GB;
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
An exemplary rotor assembly for an electric submersible pump may include a drive shaft, a journal sleeve concentrically disposed about and rotationally fixed to the drive shaft, a bushing concentrically disposed about and configured to rotate with respect to the journal sleeve, and a thrust washer, or component integrating the thrust washer, encircling the drive shaft. Concavities may be formed in an axial face of the bushing or an axial face of the thrust washer. The axial face of the bushing may be disposed proximate to the axial face of the thrust washer. The concavities may be configured to influence flow of lubrication fluid between the bushing and the thrust washer to create a hydrodynamic force against the bushing and the thrust washer when the drive shaft rotates to prevent axial contact.