. Automotive industries . ce crankcase dilutiondue to the engines running idle for long periods in coldweather. On the Mack truck above referred to a consider-able saving in fuel was shown and, by reason of the higherradiator temperature, the system provides ample coolingcapacity, even in mountainous country where the boilingof the water in the ordinary system often greatly reducesthe working capacity. A further important advantage over thermostat controlis that as the radiator core contains no water it cannot freeze when on the road, as often happens unless a largepercentage of alcohol is emp
. Automotive industries . ce crankcase dilutiondue to the engines running idle for long periods in coldweather. On the Mack truck above referred to a consider-able saving in fuel was shown and, by reason of the higherradiator temperature, the system provides ample coolingcapacity, even in mountainous country where the boilingof the water in the ordinary system often greatly reducesthe working capacity. A further important advantage over thermostat controlis that as the radiator core contains no water it cannot freeze when on the road, as often happens unless a largepercentage of alcohol is employed. Manufacturers em-ploying the thermostat control advise customers to cut thethermostat out during freezing weather, the very timeautomatic temperature control is most needed. Severalcars equipped with the Rushmore system were in constantservice all through the past winter and gave no troublefrom freezing. As the temperature of the jacket water will depend uponthe steam pressure carried, an inexpensive reducing valve. Sketch showing location of radiatorinlet and outlet in Rushmore system. may be put in the pipe leading from the jacket to theradiator to hold the jacket temperature constant at allloads regardless of the percentage of alcohol that may beemployed to prevent freezing when the car is left standingfor long periods in cold weather. With the present-daywater cooling system using alcohol the maximum tempera-ture cannot much exceed 175 deg. The motometer is now connected to the engine jacketdirect with dial on dashboard where it can be seen moreeasily and particularly at night and where it is not soeasily stolen. The new system should be of particular value on air-planes. Airplane radiators are now mostly of the hexagontube type. It has been found that with the steam systemthe tubes can be placed much closer together, thus effect-ing a reduction of fully 20 per cent front end area for thesame amount of air cooled surface. As the cooling effectper unit of cooling surf
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
