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Investigation on the Injection Timing and Double Ignition Method for Heavy-duty LPG SI Lean Burn Engine  

김창업 (LP가스기계연구사업단 한국기계연구원)
오승묵 (LP가스기계연구사업단 한국기계연구원)
강건용 (LP가스기계연구사업단 한국기계연구원)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.3, 2003 , pp. 92-98 More about this Journal
Abstract
An LPG engine for heavy-duty vehicles has been developed using liquid phase LPG injection (hereafter LPLi) system which has regarded as one of the next generation LPG fuel supply systems. In this wort to investigate the lean bum characteristics of heavy-duty LPLi engine, various injection timing (SOI, start of injection) and double ignition method were tested. The results showed that lean misfire limit of LPLi engine could be extended. by 0.2 $\lambda$ value, using the optimal SOI timing in LPLi system. Double ignition method test was carried out by installing the second spark plug and modified ignition circuit to ignite two spark plugs simultaneously. Double ignition resulted in the stable combustion under ultra lean bum condition, below $\lambda=1.7$, and extension of lean misfire limit compare to ordinary case. Therefore, LPLi engine with optimal SOI and double ignition method could be normally operated at around $\lambda=1.9$ and showed higher engine performance.
Keywords
Liquid phase LPG injection(LPLI); Double ignition; Lean operating limit; Start of injection(SOI);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 A Fundamental Study on a MPI LPG Engine for Heavy-Duty Vehicles /
[ K. Y. Kang;D. Y. Lee;S. M. Oh;C. U. Kim ] / The 5th International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engine, 3-02 COMODIA
2 Stoichiometric and Lean Burn Heavy-Duty Gas Engines-A Dilemma between Exhaust Emissions and Fuel Consumption? /
[ M. van der Steen;J. de Rijke;J. J. Seppen ] / TNO-paper VM9605
3 The Effects of Fuel Composition, System Design and Operating Conditinos on In-System Vaporization and Hot Start of a Liquid-Phase LPG Injection System /
[ B. R. Lutz;R. H. Stanglmaier;R. D. Mattews;J. Cohen;R. Wicker ] / SAE 981388
4 Regulated and Non Regulated Emissions of a Commercially Attractive LPG Vehicle /
[ B. Hollemans;M. de Roos;L. Conti;G. Margaria ] / TNO-paper VM9502
5 Performance and Emissions of an LPG Lean-Burn Engine for Heavy-Duty Vehicles /
[ S. Goto;D. Lee;J. Shakal;N. Harayama;F. Honjyo;H. Veno ] / SAE 1999-01-1513
6 /
[] / World LP Gas Association, Automotive LP gas Today's Fuel for a Cleaner Tomorrow, Third Edition
7 Development of a Dedicated LPG-Fueled Spark Ignition Engine and Vehicle for the 1996 Propane Vehicle Challenge /
[ J. A. Caton;M. McDermott;R. Chona ] / SAE 972692
8 The Effect of Intake Swirl ratios on Combustion Characteristics in a Heavy-Duty LPG Engine /
[ B. J. Han;C. U. Kim;K .Y. Kang;C. S. Lee ] / Transactions of KSAE   과학기술학회마을
9 Propane the 'Clean' Fuel as the Next Century for Light and Heavy Duty Vehicles /
[ B. Hollemans;L. Conti;P. de Kok ] / TNO-Paper VM9504
10 Performance of an Liquid Phase LPG Injection Engine for Heavy Duty Vehicles /
[ K. Y. Kang;D. Y. Lee;S. M. Oh;C. U. Kim ] / SAE 2001-02-1958
11 Fundamental Study on Liquid Phase LPG Injection System for Heavy-duty Engine (II) /
[ C. U. Ki;K. Y. Kang ] / Transactions of KSAE   과학기술학회마을
12 Fundamental Study on Liquid Phase LPG Injection System for Heavy-duty Engine (I) /
[ C. U. Kim;S. M. Oh;K. Y. Kang ] / Transactions of KSAE   과학기술학회마을
13 Gaseous Fuels:Past Experiences and Future Expectations /
[ M. van der Steen ] / TNO-paper VM9608