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A glow plug engine, or glow engine, is a type of small internal combustion engine [1] typically used in model aircraft, model cars and similar applications. The ignition is accomplished by a combination of heating from compression, heating from a glow plug and the catalytic effect of the platinum within the glow plug on the methanol within the ...
There also exist model diesels with fixed compression heads. A few examples are the British 5 cc OWAT or the American DRONE. These engines have a fixed compression ratio, but the compression can be altered slightly with the use of more or less lubrication oil in the fuel. Also the engine's load affects the compression and ignition timing.
Four-stroke model engines have been made in sizes as small as 0.20 in3 (3.3 cc) for the smallest single-cylinder models, all the way up to 3.05 in3 (50 cc) for the largest size for single-cylinder units, with twin- and multi-cylinder engines on the market being as small as 10 cc for opposed-cylinder twins, while going somewhat larger in size ...
The Swashplate engine with the K-Cycle engine is where pairs of pistons are in an opposed configuration sharing a cylinder and combustion chamber. A Delta engine has three (or its multiple) cylinders having opposing pistons, aligned in three separate planes or 'banks', so that they appear to be in a Δ when viewed along the axis of the main-shaft.
Model Stirling engine, with external heat from a spirit lamp (bottom right) applied to the outside of the glass displacer cylinder. Newcomen's engine, a precursor of the steam engine, with the boiler heated from beneath Sectioned steam locomotive. Although the fire is within an enclosed firebox, this is still an external combustion engine, as ...
The flame speed is the measured rate of expansion of the flame front in a combustion reaction. Whereas flame velocity is generally used for a fuel, a related term is explosive velocity, which is the same relationship measured for an explosive. Combustion engineers differentiate between the laminar flame speed and turbulent flame speed. Flame ...
A reaction engine is an engine or motor that produces thrust by expelling reaction mass (reaction propulsion), [1] in accordance with Newton's third law of motion.This law of motion is commonly paraphrased as: "For every action force there is an equal, but opposite, reaction force."
During the twelve years of collaboration between Barsanti and Matteucci several prototypes of internal combustion engines were realized. It was the first real internal combustion engine, [3] constituted in its simplest realization by a vertical cylinder in which an explosion of a mixture of air and hydrogen or an illuminating gas shot a piston upwards thereby creating a vacuum in the space ...