抄録
To suppress knock in small gasoline engines, the coolant flow of a single-cylinder engine was improved by using two methods: a multi-dimensional knock prediction method combining a Flamelet model with a simple chemical kinetics model, and a method for predicting combustion chamber wall temperature based on a thermal fluid calculation that coupled the engine coolant and the engine structure (engine head, cylinder block, and head gasket). Through these calculations as well as the measurement of wall temperatures and the analysis of combustion by experiments, the effects of wall temperature distribution and consequent unburnt gas temperature distribution on knock onset timing and location were examined. Furthermore, a study was made to develop a method for cooling the head side, which was more effective to suppress knock: the head gasket shape was modified to change the coolant flow and thereby improve the distribution of wall temperatures on the head side.
| 元の言語 | English |
|---|---|
| ジャーナル | SAE Technical Papers |
| DOI | |
| 出版物ステータス | Published - 2006 11 13 |
| イベント | SAE 2006 Small Engine Technology Conference and Exhibition, SETC 2006 - San Antonio, United States 継続期間: 2006 11 13 → 2006 11 16 |
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ASJC Scopus subject areas
- Automotive Engineering
- Safety, Risk, Reliability and Quality
- Pollution
- Industrial and Manufacturing Engineering
これを引用
Study of knock control in small gasoline engines by multi-dimensional simulation. / Nakama, Kenjiro; Kusaka, Jin; Daisho, Yasuhiro.
：: SAE Technical Papers, 13.11.2006.研究成果: Conference article
}
TY - JOUR
T1 - Study of knock control in small gasoline engines by multi-dimensional simulation
AU - Nakama, Kenjiro
AU - Kusaka, Jin
AU - Daisho, Yasuhiro
PY - 2006/11/13
Y1 - 2006/11/13
N2 - To suppress knock in small gasoline engines, the coolant flow of a single-cylinder engine was improved by using two methods: a multi-dimensional knock prediction method combining a Flamelet model with a simple chemical kinetics model, and a method for predicting combustion chamber wall temperature based on a thermal fluid calculation that coupled the engine coolant and the engine structure (engine head, cylinder block, and head gasket). Through these calculations as well as the measurement of wall temperatures and the analysis of combustion by experiments, the effects of wall temperature distribution and consequent unburnt gas temperature distribution on knock onset timing and location were examined. Furthermore, a study was made to develop a method for cooling the head side, which was more effective to suppress knock: the head gasket shape was modified to change the coolant flow and thereby improve the distribution of wall temperatures on the head side.
AB - To suppress knock in small gasoline engines, the coolant flow of a single-cylinder engine was improved by using two methods: a multi-dimensional knock prediction method combining a Flamelet model with a simple chemical kinetics model, and a method for predicting combustion chamber wall temperature based on a thermal fluid calculation that coupled the engine coolant and the engine structure (engine head, cylinder block, and head gasket). Through these calculations as well as the measurement of wall temperatures and the analysis of combustion by experiments, the effects of wall temperature distribution and consequent unburnt gas temperature distribution on knock onset timing and location were examined. Furthermore, a study was made to develop a method for cooling the head side, which was more effective to suppress knock: the head gasket shape was modified to change the coolant flow and thereby improve the distribution of wall temperatures on the head side.
UR - http://www.scopus.com/inward/record.url?scp=85072352892&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072352892&partnerID=8YFLogxK
U2 - 10.4271/2006-32-0034
DO - 10.4271/2006-32-0034
M3 - Conference article
AN - SCOPUS:85072352892
JO - SAE Technical Papers
JF - SAE Technical Papers
SN - 0148-7191
ER -