Arrangements for cooling or ventilating

Classification Context

Section:

ELECTRICITY

Class:

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

Subclass:

DYNAMO-ELECTRIC MACHINES

Child Classifications

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• H02K 9/02 by ambient air flowing through the machine
• H02K 9/08 by gaseous cooling medium circulating wholly within the machine casing
• H02K 9/1 by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
• H02K 9/14 wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
• H02K 9/19 for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
• H02K 9/22 by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
• H02K 9/24 Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium
• H02K 9/26 Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
• H02K 9/28 Cooling of commutators, slip-rings or brushes, e.g. by ventilating