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Research and Development of Controlled Auto-Ignition (CAI) Combustion in a 4-Stroke Multi-Cylinder Gasoline Engine
Technical Paper
2001-01-3608
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2002 World Congress & Exhibition
SAE International Fall Fuels & Lubricants Meeting & Exhibition
Language:
English
Abstract
Controlled Auto-Ignition (CAI) combustion has been achieved in a production type 4-stroke multi-cylinder gasoline engine. The engine was based on a Ford 1.7L Zetec-SE 16V engine with a compression ratio of 10.3, using substantially standard components modified only in design dimensions to control the gas exchange process in order to significantly increase the trapped residuals. The engine was also equipped with Variable Cam Timing (VCT) on both the intake and exhaust camshafts. It was found that the largely increased trapped residuals alone were sufficient to achieve CAI in this engine and with VCT, a range of loads between 0.5 and 4 bar BMEP and engine speeds between 1000 and 3500 rpm were mapped for CAI fuel consumption and exhaust emissions. The measured CAI results were compared with those of Spark Ignition (SI) combustion in the same engine but with standard camshafts at the same speeds and loads. The comparison showed more than 30% reduction in BSFC and up to 99% reduction in NOx at low loads.
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Citation
Li, J., Zhao, H., Ladommatos, N., and Ma, T., "Research and Development of Controlled Auto-Ignition (CAI) Combustion in a 4-Stroke Multi-Cylinder Gasoline Engine," SAE Technical Paper 2001-01-3608, 2001, https://doi.org/10.4271/2001-01-3608.Also In
Homogeneous Charge Compression Ignition (Hcci) Combustion 2002
Number: SP-1688; Published: 2002-03-04
Number: SP-1688; Published: 2002-03-04
References
- Onishi, S. Hong, S. Shoda, K. Do Jo, P. Kato, S. Active Thermo Atmosphere Combustion (ATAC) - a new combustion process for internal combustion engines SAE paper 790501 1979
- Noguchi, M. Tanaka, Y. Tanaka, T. Takeuchi, Y. A study on gasoline engine combustion by observation of intermediate reactive products during combustion SAE paper 790840 1979
- Iida, N. Ichikura, T. Kase, L. Yoshiteru, E. Self-ignition and combustion stability in a methanol fuelled low heat rejection ceramic ATAC engine - analysis of cyclic variation at high wall temperatures and lean burn operation JSAE review 18 233 240 1997
- Lavy, W. Dabadie, J. Angelberger, C. Duret, P. Willand, J. Juretzka, A. Schaflein, J. Ma, T. Lendresse, Y. Satre, A. Schulz, C. Kramer, H. Zhao, H. Damiano, L. Innovative ultra-low NOx controlled auto-ignition combustion process for gasoline engines: the 4-SPACE project SAE paper 2000-01-1837 2000
- Oakley, A. Zhao, H. Ladommatos, N. Ma, T. Experimental studies on controlled auto-ignition (CAI) combustion in a 4-stroke gasoline engine International conference on 21 st century emissions technology IMechE 2001
- Iida, N. Combustion analysis of methanol-fuelled active thermo-atmosphere combustion (ATAC) engine using a spectroscopic observation SAE paper 940684 1994
- Christensen M. Johansson, B. Einewall, P. Homogeneous charge compression ignition (HCCI) using isooctane, ethanol and natural gas - a comparison with spark ignition operation SAE paper 972874 1997
- Chen, Z. Konno, M. Oguma, M. Yanai, T. Experimental study of CI natural gas/DME homogeneous charge engine SAE paper 2000-01-0329 2000
- Ryan, T. Callahan, T. Homogeneous charge compression ignition of diesel fuel SAE paper 961160 1996
- Kimura, S. Aoki, O. Kitahara, Y. Aigoshizawa, E. Ultra-clean combustion technology combining a low-temperature and premixed combustion concept for meeting future emission standards SAE paper 2001-01-0200 2001
- Ishibashi, Y Masahiko, A. Improving the exhaust emissions of 2-stroke engines by applying the activated radical combustion SAE paper 960742 1996
- Duret, P. Venturi, S. Automotive calibration of the IAPAC fluid dynamically controlled 2-stroke combustion process SAE paper 960363
- Thring, R. Homogeneous charge compression ignition (HCCI) engines SAE paper 892068 1989
- Christensen, M. Hultqvist, A. Demonstrating the multi fuel capability of a homogeneous charge compression ignition engine with variable compression ratio SAE paper 1999-01-3679 1999
- Aoyama, T. Hattori, Y. Mizuta, J. Sato, Y. An experimental study on premixed charge compression ignition gasoline engine SAE paper 960081 1996
- Law, D. Allen, J. Kemp, D. Williams, P. 4-stroke active combustion (controlled auto-ignition) investigation using a single cylinder engine with Lotus active valve train (AVT) International conference on 21st century emissions technology IMechE 2000
- Duret, P. Lavy, J. Process for controlling self-ignition in a 4-stroke engine