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Viewing 190801 to 190830 of 191311
1919-01-01
Technical Paper
190039
W G GERNANDT
THE ever-increasing demand for highly volatile fuels and constantly decreasing volatility, constitute a serious problem. Synthetic fuels have been suggested as a remedy, but these require a change in carburetion methods. It is the author's conviction that, if any redesigning is necessary, this should embody a combustion method by which any of the existing liquid hydrocarbons can be utilized and further change of method obviated, if a new fuel should later be developed. The high-compression engine is presented as a solution. Proof is offered that by its adoption any liquid hydrocarbon fuel can be utilized under any temperature condition and a real saving in fuel accomplished through increased thermal efficiency. Sustained effort should be made along these lines to increase thermal efficiency and provide an engine of adequate power, flexibility, ease of control and ability to operate on any of the fuels obtainable now or later.
1919-01-01
Technical Paper
190038
P J DASEY
THE rapid development of heavy-duty trucks and farm tractors has made it necessary for manufacturers of engines used in such automotive apparatus to face problems regarding which there is no past experience to fall back upon. The necessity in both types of engine for maximum strength in all parts carrying excessive loads constitutes a problem of great importance, but in addition to it are others of the proper utilization of fuels at present available, lubrication under excessive load conditions over long periods of time; and, of nearly as much importance, the relation of fuels to lubricants and the effect of fuels upon lubricants. Moreover, information is to be acquired regarding the value of prospective fuels as power producers, the effects they have upon engines, lubricants, etc., comparisons of cost and the like. The tests recorded in the paper were made in an endeavor to ascertain some of these unknown values.
1919-01-01
Technical Paper
190006
HOWARD C MARMON
ANY aggregation of parts assembled to obtain a mechanical result is a series of compromises. The relative importance of the objectives governs the nature of the compromise. The major objectives to be considered in the design of airplane engines are (1) Reliability (2) Small weight per horsepower (3) Economy of fuel and oil consumption (4) Carburetion that permits of easy starting; maximum power through a range of 30 per cent of the speed range; and idling at one-quarter maximum speed without danger of stalling (5) Ability to deliver full power through a small speed range without excessive vibration (6) Complete local cylinder-cooling under conditions of high mean effective pressure (7) Compactness The automobile engine must have (1) Reliability (2) Silence (3) Carburetion that accomplishes proper and even firing in all cylinders under varying throttle conditions, through speeds covering more than 90 per cent of the speed range of the engine.
1919-01-01
Technical Paper
190020
J G Vincent
1919-01-01
Technical Paper
190028
ARCHIBALD BLACK
THIS paper describes the various types of radiator installations in use. Tabulated data on several makes of radiation and on successful airplane radiator installations are given. A brief review of laboratory tests is made and the features to be considered in design and manufacture are discussed. The author concludes by cautioning engineers against attempting to base new designs entirely upon experimental data, without comparing the tentative design with existing successful installations.
1919-01-01
Technical Paper
190005
Henry M. Crane
ABSTRACT
1918-01-01
Technical Paper
180014
J EDWARD SCHIPPER
1918-01-01
Technical Paper
180013
O W A OETTING
1918-01-01
Technical Paper
180016
F W GURNEY
1918-01-01
Technical Paper
180015
J EDWARD SCHIPPER
1918-01-01
Technical Paper
180010
H C BUFFINGTON
1918-01-01
Technical Paper
180009
GEORGE T STRITE
1918-01-01
Technical Paper
180012
W M CORSE
1918-01-01
Technical Paper
180011
E R GREER
1918-01-01
Technical Paper
180021
PRESCOTT WARREN
1918-01-01
Technical Paper
180022
J G ZIMMERMAN
1918-01-01
Technical Paper
180024
AMOS F MOYER
1918-01-01
Technical Paper
180023
ERNEST GOLDBERGER

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