. Automotive industries . onstruction used on the Nash. Belt drive of the gen-erator was also noticed on one other car where the fan wasnot combined with the generator. While there is some ob-jection to a non-positive drive of the generator it must beremembered that the power consumption of the latter ismuch less than that of the average fan. The average gen-erator delivers not over 20 amperes at about 7 volts, whichis equal to 140 watts, and at 50 per cent generator effi-ciency the power required to drive the generator is onlyslightly more than one-third of a horsepower. Quite a few designers
. Automotive industries . onstruction used on the Nash. Belt drive of the gen-erator was also noticed on one other car where the fan wasnot combined with the generator. While there is some ob-jection to a non-positive drive of the generator it must beremembered that the power consumption of the latter ismuch less than that of the average fan. The average gen-erator delivers not over 20 amperes at about 7 volts, whichis equal to 140 watts, and at 50 per cent generator effi-ciency the power required to drive the generator is onlyslightly more than one-third of a horsepower. Quite a few designers now place the driving pulley forthe fan belt on the accessories drive shaft behind the gearhousing. This has the advantage that it eliminates oneshaft outlet from the gear housing and one chance for oilleakage. Thermostats are finding additional applicationson automobile engines. Thus on the Fergus engine thereare two serving novel purposes. One is in the form of analuminum rod inside the hollow overhead camshaft, which,. Left-hand side of engine on new Du Pont car 58 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE January IS, 19tl as it expands from the growing heat of the engine, engagesthe friction clutch by which the fan is driven from thecamshaft. When the engine is cold the fan does not rotate,or at least not at any speed. The other thermostat, whichis of the compound metal strip type, extends down theside of the exhaust pipe and controls the opening of theexhaust bypass through the inlet manifold jacket. In a class by itself is the small Fiat car which has anengine of probably not much over 21.; in. bore. This, ofcourse, is a car designed for economical operation, and aslow first cost should go with low running expense, someof the features found in the larger Fiats have been elim-inated. Thus the fuel, instead of being carried in a reartank from which there is pressure feed to the contained in a flat tank on the forward side of the the low consumption of th
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
