Download or read book Knock and Knock Intensity in a Spark Ignition Engine written by M. Karimifar and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relation Between Spark ignition Engine Knock Detonation Waves and Autoignition as Shown by High speed Photography written by Cearcy D. Miller and published by . This book was released on 1946 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Analysis of Spark ignition Engine Knock as Seen in Photographs Taken at 200 000 Frames a Second written by Cearcy D. Miller and published by . This book was released on 1946 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Experimental Measure and Analysis for Determination of Combustion Knock Intensity in a Spark Ignition Engine written by Satheesh Rajh Rajagopalan and published by . This book was released on 2006 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Knocking Combustion Observed in a Spark ignition Engine with Simultaneous Direct and Schlieren High speed Motion Pictures and Pressure Records written by Gordon E. Osterstrom and published by . This book was released on 1948 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book A Phenomenological Model of Knock Intensity in Spark ignition Engines written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Knock and Prediction of Its Onset in a Spark ignition Engine written by Kwang Min Chun and published by . This book was released on 1988 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Strategies for Detecting Knock in Spark Ignition Engines written by T. A. Fauzi Soelaiman and published by . This book was released on 1992 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlation Between Knock Intensity and Heat Transfer Under Light and Heavy Knocking Conditions in a Spark Ignition Engine written by Michalis Syrimis and published by . This book was released on 1996 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Combustion Time on Knock in a Spark ignition Engine written by Donald Roger Diggs and published by . This book was released on 1953 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automotive Spark Ignited Direct Injection Gasoline Engines written by F. Zhao and published by Elsevier. This book was released on 2000-02-08 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The process of fuel injection, spray atomization and vaporization, charge cooling, mixture preparation and the control of in-cylinder air motion are all being actively researched and this work is reviewed in detail and analyzed. The new technologies such as high-pressure, common-rail, gasoline injection systems and swirl-atomizing gasoline fuel injections are discussed in detail, as these technologies, along with computer control capabilities, have enabled the current new examination of an old objective; the direct-injection, stratified-charge (DISC), gasoline engine. The prior work on DISC engines that is relevant to current GDI engine development is also reviewed and discussed. The fuel economy and emission data for actual engine configurations have been obtained and assembled for all of the available GDI literature, and are reviewed and discussed in detail. The types of GDI engines are arranged in four classifications of decreasing complexity, and the advantages and disadvantages of each class are noted and explained. Emphasis is placed upon consensus trends and conclusions that are evident when taken as a whole; thus the GDI researcher is informed regarding the degree to which engine volumetric efficiency and compression ratio can be increased under optimized conditions, and as to the extent to which unburned hydrocarbon (UBHC), NOx and particulate emissions can be minimized for specific combustion strategies. The critical area of GDI fuel injector deposits and the associated effect on spray geometry and engine performance degradation are reviewed, and important system guidelines for minimizing deposition rates and deposit effects are presented. The capabilities and limitations of emission control techniques and after treatment hardware are reviewed in depth, and a compilation and discussion of areas of consensus on attaining European, Japanese and North American emission standards presented. All known research, prototype and production GDI engines worldwide are reviewed as to performance, emissions and fuel economy advantages, and for areas requiring further development. The engine schematics, control diagrams and specifications are compiled, and the emission control strategies are illustrated and discussed. The influence of lean-NOx catalysts on the development of late-injection, stratified-charge GDI engines is reviewed, and the relative merits of lean-burn, homogeneous, direct-injection engines as an option requiring less control complexity are analyzed.
Download or read book A Study of the Knock Characteristics of Various Spark ignition Engine Fuels written by A. Joel Warren and published by . This book was released on 1939 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spark Ignition Engine Knock Detection Using In cylinder Optical Probes written by Zhihong Sun and published by . This book was released on 1997 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Predicting Knock Onset in a Spark Ignition Engine written by Jim Scot Cowart and published by . This book was released on 1990 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relation Between Spark Ignition Engine Knock Detonation Waves and Autoinition as Show by High Speed Photography written by Cearcy D. Miller and published by . This book was released on 1946 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenomena that Determine Knock Onset in Spark ignited Engines written by Bridget Mary Revier and published by . This book was released on 2006 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Cont.) The cylinder pressure knock intensities and microphone knock intensities were plotted and then fit with a linear trendline. The R2 value for these linear trendlines will transition from considerably lower values to values greater than 0.85 at the spark timing of knock onset. It is believed that the higher cylinder pressure knock intensities, in conjunction with the faster build-up of 5-10 oscillations before reaching peak, helps to explain the knock phenomena. It supports conclusions from previous works that the end gas contains one or more hot spots that autoignite in sequence causing pressure gradients that can trigger rapid pressure oscillations. These pressure oscillations can cause block and head vibrations that lead to audible noise outside the engine.
Download or read book Relation Between Spark ignition Engine Knock Detonation Waves and Autoignition as Shown by High speed Photography written by Cearcy D. Miller and published by . This book was released on 1949 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
