Knocking Combustion Observed in a Spark-ignition Engine with Simultaneous Direct and Schlieren High-speed Motion Pictures and Pressure Records PDF Download
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Author: Gordon E. Osterstrom Publisher: ISBN: Category : Combustion Languages : en Pages : 66
Book Description
This report support simultaneous direct and schlieren photographs at 40,000 frames a second and correlated pressure records taken of knocking combustion in a special spark-ignition engine to ascertain intensity of certain end-zone reactions previously seen by schlieren photography alone.
Author: Gordon E. Osterstrom Publisher: ISBN: Category : Combustion Languages : en Pages : 66
Book Description
This report support simultaneous direct and schlieren photographs at 40,000 frames a second and correlated pressure records taken of knocking combustion in a special spark-ignition engine to ascertain intensity of certain end-zone reactions previously seen by schlieren photography alone.
Author: Cearcy D. Miller Publisher: ISBN: Category : Combustion Languages : en Pages : 26
Book Description
A motion-picture of the development of knock in a spark-ignition engine is presented, which consists of 20 photographs taken at intervals of 5 microseconds, or at a rate of 200,000 photographs a second, with an equivalent wide-open exposure time of 6.4 microseconds for each photograph. A motion picture of a complete combustion process, including the development of knock, taken at the rate of 40,000 photographs a second is also presented to assist the reader in orienting the photographs of the knock development taken at 200,000 frames per second are analyzed and the conclusion is made that the type of knock in the spark-ignition engine involving violent gas vibration originates as a self-propagating disturbance starting at a point in the burning or autoigniting gases and spreading out from that point through the incompletely burned gases at a rate as high as 6800 feet per second, or about twice the speed of sound in the burned gases. Apparent formation of free carbon particles in both the burning and the burned gas is observed within 10 microseconds after passage of the knock disturbance through the gases.
Author: Cearcy D. Miller Publisher: ISBN: Category : Combustion Languages : en Pages : 72
Book Description
A critical review of literature bearing on the autoignition and detonation-wave theories of spark-ignition engine knock and on the nature of gas vibrations associated with combustion and knock results in the conclusion that neither the autoignition theory nor the detonation-wave theory is an adequate explanation of spark-ignition engine knock. A knock theory is proposed, combining the autoignition and detonation-wave theories, introducing the idea that the detonation wave develops in autoignited or afterburning gases, and ascribing comparatively low-pitched heavy knocks to autoignition but high-pitched pinging knocks to detonation waves with the possibility of combinations of the two types of knock.
Author: Gordon E. Osterstrom
Author: Gordon E. Osterstrom
Author: Benjamin Pinkel
Author: Gordon E. Osterstrom
Author: Gordon E. Osterstrom
Author: Gordon E. Osterstrom
Author: Gordon E. Osterstrom
Author: Cearcy D. Miller
Author: Cearcy D. Miller
Author: 
Author: Addison May Rothrock