Following the great public interest aroused by the „2/4-sight“ concept and the successful completion of the fundamental investigations on the testbed, Ricardo is now starting work on the „2/4-car“ project. This project aims to prove the combinability of two- and four-stroke operation in a single internal combustion engine within a demonstrator vehicle. The additional degree of freedom of the engine operating mode opens the potential for down sizing beyond conventional technical limits, enabling a competitive CO2/cost trade-off compared to future diesel powertrains.
This is a preview of subscription content, access via your institution.
Buy single article
Instant access to the full article PDF.
Tax calculation will be finalised during checkout.
Stokes, J.; Hundleby, G E.; Lake, T.: Development Experience of a Poppet-valved Two-stroke Flagship Engine. SAE 920778
Hundleby, G E.: Two Strokes Engines. Ricardo Group. European Patent Application 89305979.0, publication No.0349149A2 published 3 Jan 1990
About this article
Cite this article
Rebhan, M., Stokes, J. Two-stroke/four-stroke multicylinder gasoline engine for downsizing applications. MTZ Worldw 70, 40–45 (2009). https://doi.org/10.1007/BF03226944
- Engine Speed
- Valve Timing
- Experimental Engine
- Poppet Valve