H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/26
H02K 1/32 (2006.01) H02K 3/24 (2006.01)
Patent
CA 1048582
Abstract of the Disclosure A rotary electric machine comprises a rotor and a stator in which a rotor winding is cooled by a cooling gas. The rotor winding has a plurality of conductor plates insulated from each other and superposed within a respective slot formed in the rotor. The conductor plate has inlet and outlet holes alternately arranged in two rows in a longitudinal direction of the rotor and diagonal grooves connecting the inlet and outlet holes in one row to the outlet and inlet holes, respectively, in the other row. The inlet and outlet holes in one conductor plate are in alignment with the inlet and outlet holes in the remaining conductor plates to provide gas inlet passages and gas outlet passages. The rotor has wedges for fixing the rotor winding in the slot and each having inlets and outlets corresponding to the inlet and outlet holes in the conductor plates. A cooling gas is introduced into the inlet in the rotor and exhausted from the outlet of the rotor through the inlet hole, diagonal groove and outlet hole.
245617
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