Cooling arrangement for the rotor of an electric machine

Patent · Tue May 12 04:00:00 EDT 1981

OSTI ID:6242838

Kullmann, D

A cooling arrangement is disclosed for the rotor of an electric machine having a superconducting field winding and a co-rotating mixing chamber containing a phase mixture of a coolant has a coolant distribution system arranged at the outer circumference of the field winding which feeds coolant into cooling canals through the field winding into the mixing chamber. There are also corresponding coolant connecting lines outside the winding, at least one coolant feed line connected to the coolant distribution system for supplying coolant from the outside, and a discharge for the gaseous coolant at a pressure below 105 pa. In this cooling arrangement, cooling of the field winding is advantageously brought about by self-pumping. Simple and effective cooling-down is achieved.

• Assignee: Siemens Ag (Germany, Federal Republic of)
• Patent Number(s): US 4267474
• OSTI ID: 6242838
• Country of Publication: United States
• Language: English

Related Subjects

200303 -- Power Transmission & Distribution-- Superconducting & Cryogenic Systems-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COOLING SYSTEMS
CRYOGENICS
ELECTRIC GENERATORS
ELEMENTS
ENERGY SYSTEMS
FLUIDS
GASES
HEAT EXCHANGERS
HELIUM
NONMETALS
RARE GASES
ROTORS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING GENERATORS