| 摘要 |
1522205 Axial-flow fans DUCELLIER & CIE 3 Nov 1975 [12 Dec 1974] 45621/75 Heading F1C [Also in Division H2] The armature magnetic circuit 10 of a motorized fan 1 is in thermal contact with a portion of a hollow metal hub 3 of a bladed rotor 2 to encourage the dissipation of heat generated in the circuit 10, the hub 3 acting as a radiator. Current is delivered to the rotor via a commutator 5 and brushes 6.
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