| 摘要 |
PURPOSE:To obtain the effective warming and secure energy economization by operating the air-pump system warming under the condition where the temperature is lowered by a variety of elements which control engine temperature and operating the cooling-water system warming under the condition where the temperature rises. CONSTITUTION:When the temperature of cooling water is below a prescribed value, a cooling-water system heater B which performs warming by operating a warm-water heater 14 by the engine cooling water through the OFF-operation of a blower motor 17 and a solenoid 20, and an air-pump system heater A which performs warming by operating an air pump 2 through maintaining the ON- operation of an electromagnetic clutch 4. When the engine warming operation is carried-out, and the temperature of cooling water becomes over a prescribed value, the air-pump system heater A is brought into stop by the OFF-operation of the electromagnetic clutch 4, and the cooling-water system heater B is operated by a controller 39 through the ON-operation of the blower motor 17 and the solenoid 20. Therefore, the effective warming corresponding to the engine temperature can be obtained, securing energy economization. |
