Invention Grant
- Patent Title: Sealless downhole system with magnetically supported rotor
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Application No.: US15857472Application Date: 2017-12-28
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Publication No.: US10167871B1Publication Date: 2019-01-01
- Inventor: Kuo-Chiang Chen , Patrick McMullen , David Biddick
- Applicant: Upwing Energy, LLC
- Applicant Address: US CA Cerritos
- Assignee: Upwing Energy, LLC
- Current Assignee: Upwing Energy, LLC
- Current Assignee Address: US CA Cerritos
- Agency: Fish & Richardson P.C.
- Main IPC: E21B4/02
- IPC: E21B4/02 ; E21B4/04 ; F04D13/06 ; F04D13/10 ; E21B43/12

Abstract:
A rotor is surrounded by a stator. A radial bearing includes a first radial bearing portion coupled to the rotor and a second radial bearing portion coupled to the stator. A thrust-bearing includes a first portion coupled to the rotor. The first portion is spaced from a second portion coupled to the stator defining a first annular fluid gap in-between that is in fluid communication with an outside environment exterior the downhole-type machine. The thrust bearing is configured to support an axial load of the rotor within the stator.
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