This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Controlled Combustion in an IC-Engine with a Fully Variable Valve Train
Technical Paper
2001-01-0251
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Two methods have been achieved of facilitating controlled auto-ignition (CAI) combustion in a 4-stroke engine. This has been accomplished without the need to pre-heat intake air and was made possible through the use of the Active Valve Train (AVT) system. AVT was used to vary the amount of trapped exhaust gasses (otherwise known as exhaust residuals) inside the cylinder prior to the compression stroke. Both methods represent examples of internal exhaust gas recirculation (EGR). It was observed that the amount of internal EGR determined the combustion initiation point as a function of crank angle, thus demonstrating that both methods are controllable reproducible processes. Initial results (taken at 2000rpm and 3.5bar IMEP) show that this combustion significantly reduces NOx emissions to ultra-low levels compared to conventional spark ignition combustion. Data presented here represents the first published results of our internal EGR methodologies. At present, this combustion is being investigated across a wide range of engine speed and load points. This data will be published in the near future.
Recommended Content
Authors
Topic
Citation
Law, D., Kemp, D., Allen, J., Kirkpatrick, G. et al., "Controlled Combustion in an IC-Engine with a Fully Variable Valve Train," SAE Technical Paper 2001-01-0251, 2001, https://doi.org/10.4271/2001-01-0251.Also In
References
- Wilson N. Allen J. Muddel G. Future Valve Train Systems to Reduce Engine Performance Compromises FISITA Conference 1992
- Wilson N. Allen J. Muddel G. Lotus Variable Valve Train Systems Haus der Technik Essen 1992
- Allen J Wilson N I.Mech.E Paper C462/34/178 1993
- Langden P. Cosfeld R. Grundno A. Reif K. Electromechanical Valve Actuation: A Basis for Future Gasoline Engine Concepts BMW Group Internationales Weiner Motorsymposium 2000
- Allen J. Law D. Kemp D. 1999
- Noguchi M. Tanaka Y. Tanaka T. Takeuchi Y. A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products During Combustion JSAE790840
- Onishi S. Jo S.H. Shoda K. Jo P.D. Kato S. Active Thermo Atmosphere Combustion (ATAC) - A New Combustion Process for Internal Combustion Engines SAE 790501
- Noguchi M. Tanaka Y. Tanaka T. Takeuchi Y. A Study on Gasoline Engine Combustion by Observation of Intermediate Reactive Products During Combustion SAE 790840
- Ishibashi Y. Tsishima Y. A New Generation of Engines for the Future Duret P. Editions Technip Paris 1993 113 124
- Ishibashi Y. Basic Understanding of Activated Radical Combustion and its 2-Stroke Engine Application and Benefits SAE 2000-01-1836
- Iida N. Combustion Analysis of Methanol Fuelled Active Thermo Atmosphere Combustion (ATAC) Engine Using Spectroscopic Observation SAE 940684
- Duret P. Venturi S. Automotive Calibration of the IAPAC Fluid Dynamically Controlled 2-Stroke Combustion Process SAE 960363
- Iida N. Igarashi T. Auto-ignition and Combustion of N-Butane and DNE/Air Mixtures in a Homogeneous Charge Compression Ignition Engine SAE 200-01-1832
- Esterlingot E. Guibert P. Lavy J. Raux S. Thermodynamical and Optical Analyses of Controlled Auto Ignition Combustion in 2-Stroke Engines SAE 972098
- Kumada M. Shimodaira H. Yoshida K. Shoji H. Saima A. Proc. 15 th Int.Comb.Eng.Symp. Seoul Korea July 13-16th 1999 395 400
- Duret P. Dabadie J-C. Lavy J. Allen J. Blundell D. Oscarsson J. Emanuelsson G. Perotti M. Kenny R. Cunningham G. SAE Fuels and Lubes SAE FL487
- Duret P. Dabadie J-C. Lavy J. Allen J. Blundell D. Oscarsson J. Emanuelsson G. Perotti M. Kenny R. Cunningham G. CAIcepted for SAE Fuels and Lubes Paris 2000
- Stockinger M. Schapertons H. Kuhlman P. MTZ 53 1992 2 80 85
- Lavy et al. Innovative Ultra Low NOx Controlled Auto Ignition Combustion Process for Gasoline Engines: the 4-SPACE Project SAE 2000-01-1837
- Law D. Allen J. Kemp D. Williams P. 4-Stroke Controlled Auto Ignition Investigations Using a Single Cylinder Engine with Lotus Active Valve Train (AVT) Proceedings of the 21 st Century Emissions Technology Conference, I.Mech.E. London 4-6th December 2000
- Oppenheim A.K. Sum T-H.J. Gebert K. Johnson W.P. Kuhl A.L. Influence of Dilution on the Dynamic Stage of Combustion in a Diesel Engine SAE pre-print 01P-445 September 2000
- Najt P.M. Foster D.E. Compression Ignited Homogeneous Charge Combustion SAE 830264
- Thring R.H. Homogeneous Charge Compression Ignition (HCCI) Engines SAE 892068
- Rassweiler-Withrow SAE 42 5 185 204
- Aoyama T. Hattori Y. Mzuta J. Sato Y. An Experimental Study on Premixed Charge Compression Ignition Gasoline Engine SAE 960081