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Some Factors Affecting Combustion in an Internal-Combustion EngineAn investigation of the combustion of gasoline, safety, and diesel fuels was made in the NACA combustion apparatus under conditions of temperature that permitted ignition by spark with direct fuel injection, in spite of the compression ratio of 12.7 employed. The influence of such variables as injection advance angle, jacket temperature, engine speed, and spark position was studied. The most pronounced effect was that an increase in the injection advance angle (beyond a certain minimum value) caused a decrease in the extent and rate of combustion. In almost all cases combustion improved with increased temperature. The results show that at low air temperatures the rates of combustion vary with the volatility of the fuel, but that at high temperatures this relationship does not exist and the rates depend to a greater extent on the chemical nature of the fuel.
Document ID
19930091585
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Rothrock, A M
Cohn, Mildred
Date Acquired
September 6, 2013
Publication Date
January 1, 1936
Report/Patent Number
NACA-TR-512
Accession Number
93R20875
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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