FIELD: engine engineering. SUBSTANCE: device has sleeve 1 made of, e.g. , ceramics. Inside the sleeve is spiral electric heater 2 that is made of a copper wire or belt or pig iron. The sleeve may be two-layered. Between the layers is electric heater 4 made up as ceramic insulators that are stringed on the wire. The electric heater is switched on from the cabin of a vehicle. EFFECT: enhanced reliability. 2 dwg
Authors
Dates
1997-07-10—Published
1993-09-30—Filed