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US 11,686,319 B2Granted
Downhole blower system with a passive magnetic radial bearing assembly
AssigneeUpwing Energy, LLC
InventorsAlexei Filatov, Larry Hawkins
Life of this patent
Estimating the term…
Abstract
A blower can be positioned in a wellbore. The blower rotatably drives or is driven by a fluid produced through the well bore. An electric machine can be positioned downhole of the blower, the electric machine configured to rotatably drive or be driven by the blower. A bearing shaft couples the blower and the electric machine. The bearing shaft transfers rotation between the blower and the electric machine. A passive magnetic radial bearing assembly magnetically supports the bearing shaft.
Claims19
A downhole-type blower system comprising:
- a blower configured to be positioned in a wellbore, the blower configured to rotatably drive or be driven by fluid produced through the wellbore;
- an electric machine configured to be positioned downhole of the blower, the electric machine configured to rotatably drive or be driven by the blower;
- a bearing shaft coupling the blower and the electric machine, the bearing shaft configured to transfer rotation between the blower and the electric machine;
- and
- a passive magnetic radial bearing assembly configured to magnetically support the bearing shaft and comprising a passive magnetic radial bearing, the passive magnetic radial bearing comprising electrically conductive, non-magnetic stator spacers between stator magnets of the passive magnetic radial bearing, and comprising a protective can or a sleeve, the passive radial magnetic bearing configured to dampen vibrations.
2 more elements
Dependencies are inferred from the claim text.