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Two-Stroke/Four-Stroke Switching Gasoline Engine
Published May 21, 2008 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Meeting
A collaborative study has been carried out to explore a highly downsized gasoline engine enabled through switching between four-stroke and two-stroke operation. An efficient combustion system capable of two- and four-stroke operation was designed using both 1D and 3D gas dynamics simulation aided by auto-optimization techniques. A 2.1-liter V6 experimental engine, configured with a sophisticated control system and prototype electrohydraulic valve train achieved over 220 Nm/liter and seamless switching between two- and four-stroke modes with stable torque and without misfire. Simulation has shown 27% EU cycle fuel economy benefit compared with a conventional engine of the same power.
- Nicolas Miche - University of Brighton
- Steve Begg - University of Brighton
- Morgan Heikal - University of Brighton
- Martin Joyce - DENSO Sales UK Ltd.
- Sebastian Visser - DENSO Sales UK Ltd.
- Richard Osborne - Ricardo UK Ltd.
- John Stokes - Ricardo UK Ltd.
- Daniele Ceccarini - Ricardo UK Ltd.
- Neville Jackson - Ricardo UK Ltd.
- Tim Lake - Ricardo UK Ltd.
- Navin Kalian - Brunel Univ.
- Hua Zhao - Brunel Univ.
- Tom Ma - Brunel Univ.