This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Novel Two-Stroke Engine Concept, Feasibility Study
Technical Paper
2003-01-3211
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A novel two-stroke engine concept is introduced. The cylinder scavenging takes place during the upward motion of the piston. The gas exchange valves are similar to typical four-stroke valves, but the intake valves are smaller and lighter. The scavenging air pressure is remarkably higher than in present-day engines. The high scavenging air pressure is produced by an external compressor. The two-stroke operation is achieved without the drawbacks of port scavenged engines. Moreover, the combustion circumstances, charge pressure and temperature and internal exhaust gas re-circulation (EGR) can be controlled by using valve timings. There is good potential for a substantial reduction in NOx emissions through the use of adjustable compression pressure and temperature and by using the adjustable amount of exhaust gas re-circulation.
Recommended Content
Authors
Topic
Citation
Tiainen, J., Saarinen, A., Grönlund, T., and Larmi, M., "Novel Two-Stroke Engine Concept, Feasibility Study," SAE Technical Paper 2003-01-3211, 2003, https://doi.org/10.4271/2003-01-3211.Also In
References
- Heywood J.B Sher E The Two-Stroke Cycle Engine Its Development, Operation, and Design SAE 1999 0-7680-0323-7
- Nuti M Emissions from Two-Stroke Engines SAE 1998 0-7680-0215-X
- Bartsch C Die Diesel Revolution Motorbuch Verlag 2001 3-613-02112-9
- Larmi M Transient Response Model of Low-Speed Diesel Engine in Ice-Breaking Cargo Vessels Acta Polytechnica Scandinavica, Me 111 The Finnish Academy of Technology Helsinki 1993 951-666-378-8 0001-678X
- www.aumet.fi
- Abthoff J Duvinage F Hardt T Krämer M Paule M The 2-stroke DI-diesel engine with common rail injection for passenger car application SAE paper 981032
- Heywood J.B Internal combustion engine fundamentals McGraw-Hill 1988 0-07-100499-8
- Benzinger W.-D Springer-Verlag 1968