Study on knocking phenomena in a spark-ignition engine

Yoshisuke Hamamoto; Eiji Tomita; Sadami Yoshiyama; Naoyuki Okada; Dongmin Jiang; Shouji Kouyama; Kazuhiro Nagao

doi:10.1299/kikaib.62.1666

Study on knocking phenomena in a spark-ignition engine

Yoshisuke Hamamoto, Eiji Tomita, Sadami Yoshiyama, Naoyuki Okada, Dongmin Jiang, Shouji Kouyama, Kazuhiro Nagao

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Knocking phenomena were investigated using a specially designed spark-ignition engine which could be ignited only once. This single-event engine has a bore of 78 mm, a stroke of 85 mm and a simple disk-type combustion chamber with compression ratio of 10.4. A homogeneous mixture of n-butane, oxygen and argon, or n-butane, oxygen, argon and nitrogen was used. As a result, it was found that the ion current and OH emission vary simultaneously with the pressure oscillation due to knocking. Furthermore, it was recognized that the Livengood-Wu integral is effective for predicting the occurrence time of knocking. Several definitions of knocking intensity and the effects of engine speed, ignition timing and mixture strength on the knocking intensity were investigated.

Original language	English
Pages (from-to)	1666-1672
Number of pages	7
Journal	Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	62
Issue number	596
DOIs	https://doi.org/10.1299/kikaib.62.1666
Publication status	Published - 1996

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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author = "Yoshisuke Hamamoto and Eiji Tomita and Sadami Yoshiyama and Naoyuki Okada and Dongmin Jiang and Shouji Kouyama and Kazuhiro Nagao",

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T1 - Study on knocking phenomena in a spark-ignition engine

AU - Hamamoto, Yoshisuke

AU - Tomita, Eiji

AU - Yoshiyama, Sadami

AU - Okada, Naoyuki

AU - Jiang, Dongmin

AU - Kouyama, Shouji

AU - Nagao, Kazuhiro

PY - 1996

Y1 - 1996

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AB - Knocking phenomena were investigated using a specially designed spark-ignition engine which could be ignited only once. This single-event engine has a bore of 78 mm, a stroke of 85 mm and a simple disk-type combustion chamber with compression ratio of 10.4. A homogeneous mixture of n-butane, oxygen and argon, or n-butane, oxygen, argon and nitrogen was used. As a result, it was found that the ion current and OH emission vary simultaneously with the pressure oscillation due to knocking. Furthermore, it was recognized that the Livengood-Wu integral is effective for predicting the occurrence time of knocking. Several definitions of knocking intensity and the effects of engine speed, ignition timing and mixture strength on the knocking intensity were investigated.

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Study on knocking phenomena in a spark-ignition engine

Abstract

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