Electromagnet used in actuators for operating gas exchange valves in I.C. engines comprises a magnetic coil arranged in a yoke and fixed using a casting composition made of a metal or metal alloy

摘要

Electromagnet comprises a yoke (6, 7, 8, 9) and a magnetic coil (4, 5) with windings (34) having an electrical insulation. The coil is arranged in the yoke and fixed using a casting composition made of a metal or metal alloy having a melting temperature lying above the highest operating temperature and below the temperature at which the insulation is destroyed. Preferred Features: The metal alloy contains bismuth and lead, cadmium or tin.