Super-knock combustion in highly boosted spark ignition engines with random pre-ignition events has been intensively studied in the past decade in both academia and industry. These works have mainly focused on the relationship between pre-ignition and super-knock, source analyses of pre-ignition, ...
- In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the...- Knocking on wood (also phrased touching wood or touch wood) is an apotropaic tradition of literally touching, tapping, or knocking on ...
"knocking" or "pinking" is the phenomenon in which pressure wave of high altitude generated strikes wall of combustion chamber.pre. waves are generated because fuel attain self ignition temp. before flame front created by spark plug reaches to it. THE MAIN FACTOR RESPONSIBLE IS PRE-IGNITION. ...
PREMIER combustion mainly occurs in supercharged gas engines, such as diesel fuel ignited dual-fuel engines. As the ignition induced by the diesel fuel injection or spark plug progresses, auto-ignition occurs in the end-gas region as it is heated by the main combustion. During the main ...
As already mentioned, the irregular ignition of the fuel-air mixture is the primary cause behind the knocking sound in engines. In a properly functioning engine, the mixture combusts when it comes in contact with the flame front created by the spark. The combustion of the mixture is accurately...
摘要: In this study, we propose a new method for knocking detection that utilizes the vibration signal measured by a knock sensor under the knocking conditions known as a real mother wavelet (RMW), and carry out instantaneous correlation from the wavelet transform. We call this method the wavel...
... Knocking can cause overheating of the spark-plug points, erosion of the combustion chamber surface, and rough, inefficient operation. How is the knocking tendency increased? Solution(By Examveda Team) The knocking tendency in compression ignition engines for a given fuel will be Enhanced by ...
Factors Determining Anti-Knocking Properties of Gaseous Fuels in Spark Ignition Gas Engines Results of engine operation tests indicated that H2 was the fuel most likely to result in knocking. The use of H2 as the fuel produced a temperature ... H Tanaka,K Kobayashi,T Sako,... - Asme Intern...
4133325Engine spark timing system and method with supplementary retard in normal and starting modes1979-01-09West123/427 4061116Knock level control apparatus for an internal combustion engine1977-12-06Saida et al.123/415 4015566Electronic ignition control system for internal combustion engines1977-04-05...
a storage unit that stores in advance a waveform of vibrations of said internal combustion engine; anda determining unit that determines whether knocking occurred in said internal combustion engine or not, based on a result of comparison between said detected waveform and said stored waveform as ...