Aircraft Power Plants: Part I - Aircraft Engines, Μέρος 1Ronald Press Company, 1926 - 208 σελίδες |
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advantage air temperature air-cooled aircraft engines airfoil airplane Airscrew airship altitude aluminum angle of attack aviation gasoline benzol blade width brake horsepower Camber carburetor cent centrifugal force combustion compression ratio connection considerable core crankshaft Curtiss D-12 curve detonation developed diameter Engine three-quarter equation exhaust gas Final Exhaust Temperature float chamber friction gas engine heat dissipation heat engine ignition increase Liberty engine load loss lubrication mass flow maximum mean effective pressure mechanical Micarta micarta propellers mixture ratio moisture normal obtained oil engine operation Packard 1A-1551 engine peller peripheral speeds piston Planform power coefficient power output power plant propeller propeller blade radius reduced resultant pressure reverse gears reversible propeller satisfactory Section shown in Figure soldered specific fuel consumption starter static thrust steam steel Stromberg supercharger tanks tests throttle tion torque tube turbine usually valve variation various viscosity volumetric efficiency water condensed water-cooled weight wind tunnel
Δημοφιλή αποσπάσματα
Σελίδα 5 - When the force is constant, work is measured by the product of the force and the distance through which the body moves in the direction of the force.
Σελίδα 47 - V-type — an engine having its cylinders arranged in two rows, forming, in the end view, the letter "V." engine, W-type — an engine having its cylinders arranged in three rows, forming, in the end view, the letter "W.
Σελίδα 47 - An engine with mechanical means for increasing the cylinder charge beyond that normally taken in at the existing atmospheric pressure and temperature.
Σελίδα iii - ... economists, and representatives of industrial and commercial organizations whose interests and operations are affected by the new mode of transit. The Ronald Aeronautic Library, a series of volumes by specialists able to speak with authority, supplies this information. It is the purpose of the editors to keep the Library continually abreast of every phase of aerial development. The division into separate volumes is governed by the needs of each branch of aeronautics. At the same time this permits...
Σελίδα 184 - Some multi-cylinder engines are unable to operate on mixtures quite as lean as those shown, but since the leaner mixtures are less advantageous as regards water recovery, the curves are based on the worst expected condition, and should be considered as on the safe side. The effect of mixture ratio upon water condensed is shown by Figure 99. The fuel in this case was assumed to be gaso55...
Σελίδα 193 - X 300 = 2,400 pounds per hour For a speed of 45 miles per hour, a mass flow of 0.017 pounds per second per square inch cross-sectional area has been found satisfactory. Assuming round tubes of I inch diameter, the cross-sectional area of each is ^ square inch. The mass flow per tube is then 0.017 X - = 0.0133 pounds per second 4 Hence, the number of tubes necessary is 0.667 0.0133...
Σελίδα 180 - ... hours if the engines are operated at full power. Flying tests on the Army Airship D-3 have shown no appreciable increase in head resistance due to the installation of apparatus of the type herein discussed. Theory Nomenclature. In reviewing the theory involved in the process of obtaining water from the engine exhaust gas, it may i Figure 96. Nomenclature Chart be well, in order to avoid confusion, first to discuss the nomenclature used. Reference is made to the chart, Figure 96, in which vertical...
Σελίδα 47 - ... same crankshaft, the three rows of cylinders, when viewed from the front, forming a figure similar to the letter W. X Engine. — An engine having four rows of cylinders, in the form of the letter X when viewed from the front and all connected to the same crankshaft. Opposed Engine.
Σελίδα 31 - F. (60°) has been selected as the standard temperature of reference, and it is assumed that the power varies inversely as the square root of the ratio of the absolute temperature at time of test to the standard absolute temperature.