Combustion Velocity of Benzine-Benzol-Air Mixtures in High-Speed Internal-Combustion Engines

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Summary: The present paper describes a device whereby rapid flame movement within an internal-combustion engine cylinder may be recorded and determined. By the aid of a simple cylindrical contact and an oscillograph the rate of combustion within the cylinder of an airplane engine during its normal operation may be measured for gas intake velocities of from 30 to 35 m/s and for velocities within the cylinder of from 20 to 25 m/s. With it the influence of mixture ratios, of turbulence, of compression ratio and kind of fuel on combustion velocity may be determined. Besides the determination of the influence of the above factors on combustion velocity, the degree of turbulence may also be determined. As a unit of reference in estimating the degree of turbulence, the intake velocity of the charge is chosen.
Collection: NASA Technical Reports Server (NTRS) Collection.
Note: Document ID: 19930094748.
Accession ID: 93R23668.
NACA-TM-668.
Terms of Use and Reproduction: No Copyright.

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