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Correlation of knocking characteristics of fuels in an engine having a hemispherical combustion chamber / by A.M. Rothrock and Arnold E. Biermann.
Connect to full text Available online
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- Book
- Government document
- Author/Creator:
- Rothrock, A. M. (Addison May), 1903-1971, author.
- Biermann, Arnold E., author.
- Series:
- Technical note (United States. National Advisory Committee for Aeronautics) ; 768.
- Technical note / National Advisory Committee for Aeronautics ; no. 768
- Language:
- English
- Subjects (All):
- Internal combustion engines.
- Combustion chambers.
- Fuel--Combustion.
- Fuel.
- Motor fuels--Anti-knock and anti-knock mixtures.
- Motor fuels.
- gas engines.
- Physical Description:
- 1 online resource (10 pages, 6 unnumbered pages) : illustrations.
- Place of Publication:
- Washington, [D.C.] : National Advisory Committee for Aeronautics, 1940.
- Summary:
- Data are presented to show the effects of inlet-air pressure, inlet-air temperature, and compression ratio on the maximum permissible performance obtained with a cylinder having a hemispherical-dome combustion chamber. The five aircraft engine fuels used have octane number varying from 90 to 100 plus 2 ml of tetraethyl lead per gallon. The results for each fule can be correlated by plotting the calculated end-gas density factor against the calculated end-gas temperature. Measurements of spark-plug electrode temperatures showed thta, with two spark plugs, cutting off the switch to one spark plug lowered the electrode temperature of that plug from a value of 1,365 degrees F to a value of 957 degrees F. The results indicate that the surface temperatures of combustion-chamber areas which become new sources of ignitiion markedly increase after ignition commences.
- Notes:
- Description based on online resource, title from title screen (viewed May 29, 2020).
- "July 1940."
- "Langley Memorial Aeronautical Laboratory."
- No Federal Depository Library Program (FDLP) item number.
- Includes bibliographical references (page 9).
- Electronic reproduction. Denton, Texas : University of North Texas, 2011. Electronic reproduction from print master produced by University of North Texas.
- Other Format:
- Print version: Rothrock, A. M. (Addison May), 1903-1971. Correlation of knocking characteristics of fuels in an engine having a hemispherical combustion chamber.
- OCLC:
- 1156323959
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