1. Home
  2. Honda R&D Technical Review Vol.15 N...
  3. Two-Stroke Gas Exchanging Method fo...

Technical Review e-Book: Summary

Two-Stroke Gas Exchanging Method for Controlling Auto-Ignition : Activated Radical Combustion

Article of Honda R&D Technical Review Vol.15 No.1

Summary

The auto-ignition is focused as a combustion process, where improving efficiency and lowering NOx emission could be compatible. A current subject would be controlling combustion process. Honda demonstrated a method to control the auto-ignition, i.e. Activated Radical (AR) Combustion, in several commercial motorcycle engines.
Through the experimental analyses of the AR Combustion, this article shows that control of the gas exchange generates a temperature for the auto-ignition in the end of compression stroke, due to heat exchange between residual and new mixture. It is also revealed that its combustion speed is affected by the engine speed, scavenging efficiency and etc, however, 10% to 90% mass burn timing is settled on the same crank-angle duration, as result, regardlessly of the engine operating conditions. This is owing to the dualism of the residual gas, i.e. combustion promotion action as heat energy potential and the inhibitory action as the inert gas. Both action should balance for the two-stroke gas exchanging method for controlling auto-Ignition.

Reference

(1) Takeda, Y. et al.: The 73rd JSME Fall Annual Meeting Proceedings (III), p. 188 (1995)
(2) Aoyama, T.: Premixed-Charge Compression Ignition Gasoline Engine, Journal of Society of Automotive Engineers of Japan, Vol. 53, No. 9, p. 39-44 (1999)
(3) Lavy, J. et al. (14 authors): Innovative Ultra Low NOx Controlled Auto Ignition Combustion Process for Gasoline Engines, the 4th SPACE Project, SAE Paper 2000-01-1837 (2000)
(4) Aoyama, T. et al.: An Experimental Study on Premixed-Charge Compression Ignition Gasoline Engine, SAE Paper 960081 (1996)
(5) Urushihara, T. et al.: Parametric Study of Gasoline HCCI with Various Compression Ratios, Intake Pressures and Temperatures, IFP International Conference Preceding, p. 77-83 (2001) Rueil-Malmaison France
(6) Ishibashi, Y. et al.: A Trial for the Stabilising Combustion in Two-Stroke Engines at Part Throttle Operation: A New Generation of Two-Stroke Engines for the Future, EDITIONS TECHNIP, p. 113 (1993)
(7) Asai, M. et al.: Analysis on Fuel Economy Improvement and Exhaust Emission Reduction in a 2-Stroke Engine by Using an Exhaust Valve, SAE Paper 951764 (1995)
(8) Ishibashi, Y., Asai, M.: Improving the Exhaust Emissions of Two-Stroke Engines by Applying the Activated Radical Combustion, SAE Paper 960742 (1996)
(9) Hiratani, K., Kakukata, S., Urushihara, T., Ito, K.: Study on Compression Auto-Ignition Gasoline Engine, JSAE Proceedings, No. 70-02, p. 1-6, (2002)
(10) Morikawa K., Kaneko, M., Ito, H., Motokubi, Y.: Study on Premixed-Charge Compression Ignition Gasoline Engine - First Report, JSAE Proceedings, No. 51-01, p. 5-8 (2001)
(11) Kaneko, M., Morikawa K., Ito, H., Motokubi, Y.: Study on Pre Premixed-Charge Compression Ignition Gasoline Engine - Second Report, JSAE Proceedings, No. 51-01, p. 9-13 (2001)
(12) Allen, J., Law, D.: Advanced Combustion Using a Lotus Active Valve Train Internal Exhaust Gas Recirculation Promoted Auto-Ignition, IFP International Congress Preceding, p. 85-100 (2001)
(13) Ishibashi, Y., Asai, M. and Nishida, K.: An Experimental Study of Stratified Scavenging Activated Radical Combustion Engine, Small Engine Technology Conference, SAE Paper 972077 (1997)
(14) Ishibashi, Y., Asai, M.: A Low Pressure Pneumatic Direct Injection Two-Stroke Engine by Activated Radical Combustion Concept, SAE Paper 980757 (1998)
(15) Blair, P. G. et al.: Single Cycle Gas Testing Method for Two-Stroke Engine Scavenging, SAE Paper 790501 (1979)

Author (organization or company)

Yoichi ISHIBASHI(Asaka R&D Center)、Kenji NISHIDA(Asaka R&D Center)、Yukio SAKAI(Asaka R&D Center)、Hisashi SAKUYAMA(Asaka R&D Center)

We would like to get your opinion on this research paper. (This is only applicable to registered members.)

The readers of this research paper have also selected these research papers.

Development of RC213V-S
Article of Honda R&D Technical Review Vol.28 No.1
Study on Controlled Auto-ignition Using Sequence of Low-temperature Combustion States - Macroscopic Understanding of Controlled Auto-ignition and Approach from Gas Exchanging States -
Article of Honda R&D Technical Review Vol.23 No.1
2007 Model CBR1000RRW for Suzuka 8 hours World Endurance Championship Race
Article of Honda R&D Technical Review Vol.20 No.1