. Automotive industries . these things are possible with air cooling, it is alsopossible that a vast improvement can be made in watercooled construction. Our compressions, fuel density, etc.,have been calculated subconsciously with the idea of usingwater as the cooling medium. This has restricted ourpressure requirements on both compression and explosionto that point where the boiling point of water has deter-mined practically the maximum obtainable without the ac-tual breaking-down of our fuel structure. Even though the above statement has been worked outin theory, facts indicate this is not
. Automotive industries . these things are possible with air cooling, it is alsopossible that a vast improvement can be made in watercooled construction. Our compressions, fuel density, etc.,have been calculated subconsciously with the idea of usingwater as the cooling medium. This has restricted ourpressure requirements on both compression and explosionto that point where the boiling point of water has deter-mined practically the maximum obtainable without the ac-tual breaking-down of our fuel structure. Even though the above statement has been worked outin theory, facts indicate this is not the case when lookingover the field in a broad manner. We are not even utiliz-ing the benefits to be obtained by taking advantage ofthe average boiling point of water as a maximum possi-bility. Most motors under normal operating conditionsdo not exceed 120° to 140° of heat, whereas the greatestbenefit for their particular compression ratios would prob-ably indicate 190° to 200° of heat would be more desirable. ooo ooo. T^7 It seems, then, that we have neglected entirely thisquestion of maintaining the highest normal operating tem-perature to which our engines are designed. Great advan-tage can be secured by increasing this temperature to themaximum, and through such method of control, by guar-anteeing that evaporation will not become a disturbingfactor; or some means be instituted to prevent evapora-tion through the condensation of the cooling medium. After the hot-spot has done its work of rupturing thetough liquid fuel with which we have to deal to-day, andproperly designed manifold has introduced this fuel intothe combustion chamber in such a manner that each cylin-der draws an equal part of this mixture, it is necessarythat this fuel be handled in such a manner in the com-bustion chamber that the maximum expansion possibilitiesare obtained from it. This can only be so by maintaining piston wall andhead temperatures of sufficiently high degree that our fuelwill not recon
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
