Accession Number:

ADD014020

Title:

Superconducting Rotor Cooling System.

Descriptive Note:

Patent, Filed 13 Oct 87, patented 18 Oct 88,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

• Eckels, Phillip W.

Report Date:

1988-10-18

Pagination or Media Count:

4.0

Abstract:

A superconducting rotor cooling system for an electrical generator includes a free vortex type pump which is located within and forms an integral part of the rotor assembly. The free vortex pump takes advantage of the centrifugal force of rotation of the cooling fluid to help the rotor winding compartment to remain in a superfluid helium state. Improved cooling results from combined natural convection, as occurs in a conventional rotor, and the superfluid heat transport which occurs at the velocity of sound. Patents. JHD

Descriptors:

• *LIQUID COOLING
• *PATENTS
• *ROTORS
• *SUPERCONDUCTORS
• ACOUSTIC VELOCITY
• ASSEMBLY
• CENTRIFUGAL FORCE
• COMPARTMENTS
• CONVECTION
• COOLING AND VENTILATING EQUIPMENT
• ELECTRIC GENERATORS
• FLUIDS
• HEAT TRANSFER
• HELIUM
• PUMPS
• SUPERFLUIDITY
• VORTICES
• WINDING

Subject Categories:

• Air Conditioning, Heating, Lighting and Ventilating

Distribution Statement:

APPROVED FOR PUBLIC RELEASE