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US 4,350,838 AGranted
Ultrasonic fluid-atomizing cooled power transformer
AssigneeElectric Power Research Institute, Inc.
InventorRonald T. Harrold
Life of this patent
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Abstract
A vapor-cooled power transformer characterized by a transformer within a sealed housing, and means for applying ultrasonic vibrations to a dielectric liquid within the housing in order to vaporize the fluid and to apply it to the exposed surfaces of the transformer.
Claims11
A vaporization-cooled electrical apparatus comprising:
- a housing forming a sealed chamber;
- a heat-producing electrical member disposed within the chamber;
- a quantity of dielectric fluid within the chamber and vaporizable within the normal operating temperature range of said member;
- and
- means for applying ultrasonic vibrations at the quantity of dielectric fluid such that the fluid atomizes and contacts the heat producing member.
2 more elements
Dependencies are inferred from the claim text.