| 摘要 |
1,076,320. Electromagnetic clutches. EATON YALE & TOWNE Inc. June 15, 1965 [July 21, 1964], No. 25290/65. Heading H2A. [Also in Division F4] A magnetizable particle coupling has a non- rotating liquid-cooled energizing winding. As shown, a ferromagnetic drum 33 is attached to a flywheel 23 of an automotive vehicle engine whilst a ferromagnetic driven member 57 is spring mounted on a hub 49 by vibration dampers 55. Ferromagnetic pole rings 87, 89 are bolted on opposite sides of a ferromagnetic ring 85 carried by a fixed outer member 41. The winding 91 is cooled by water from the engine cooling system introduced at 109 into passages 95, 97, the winding 91 being separated from the cooling water by heat-conductive, lowcarbon iron rings 99, 101. Sealing rings 113 are also provided. Stainless steel particles are introduced into gaps 61, so that when winding 91 is sufficiently energized, transmission of torque between members 33 and 57 is allowed. Freerunning labyrinth seals 69, 71 prevent escape of the magnetizable particles. The engine cooling system maintains the temperature of winding 91 at approximately 200‹ F. hence the torque transmitted is thus proportional to applied voltage. |
