| 摘要 |
1,119,911. Vibratory electric motors. DERRITRON Ltd., P. GROOTENHUIS, and J. W. GEARING. 26 Oct., 1965 [28 Oct., 1964], No. 44034/64. Heading H2A. The moving coil of a powerful vibrator has internal passages for cooling fluid. The coil is arranged in two coaxial layers 16, 17 of conductors which are either spaced by longitudinal spacers (18, Figs. 2, 3, not shown) to leave passages 19 between them, or as shown, flattened longitudinal tubes 21 are interposed between the layers. Bracing rods 22 may extend between header members at top and bottom of the coil. Air, water or refrigerant fluid may be used. A re-cycling cooling system is described. The cooling passages may be helical and may be in several layers.
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