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Carnot IFPEN Transports EnergieIFPEN proposes an innovative combustion system based on Swumble™ approach and advanced engine control algorithms.
IFPEN design and 3D CFD expertise, thanks to the long-term collaboration with CSI, allows a big step forward to improve flow capacity and turbulence trade-off, flame propagation and knock resistance.
Cutting-edge technologies from two major leaders, Valeo and Garrett, allow to design a very efficient EGR/air loop system.
Integration of IFPEN’s commercialized algorithms is adopted by OEMs as new control strategies to satisfy real driving emissions standard.

To find out more about the Swumble™ concept, see our video:

 
 

High efficiency & low emissions gasoline engine prototype

High efficiency & low emissions gasoline engine prototype•    High compression ratio > 13:1

•    Extended Miller Cycle < 140 °CA

•    High EGR tolerance > 30 %

•    Full lambda 1

•    Large high efficiency operating range > 41 %

•    High specific power 90 kW/l
 
 

SWUMBLE™ Fluid motion 

SWUMBLE™ Fluid motion •    Introduction of innovative aerodynamics

•    Homogeneous mixture

•    Improved flow capacity and turbulence tradeoff

•    Fast flame propagation

•    Low soot and HC emissions

•    High knock resistance
 
 

  Native and highly turbulent aerodynamics 

evolution TKE Tumble/Swumble™    Real breakthrough in the area of gasoline engines, with significant gains compared to the Tumble motion: 

   -    Higher turbulent production with same in-cylinder flow velocity 

   -    Better trade-off between turbulence and flow capacity 

   The larger the Miller ratio, the higher the benefits of the Swumble™ concept.
 
 

Cutting-edge air system: a collaboration with industry leaders

Cutting-edge air system: a collaboration with industry leaders    
•    High efficiency VNT turbocharger

•    Compact & fully integrated water charge air cooler

•    Well balanced high efficiency and gas permeability EGR cooler

•    Compact electrical flap valve arrangement
 
 

Engine Control

Engine Control   
•    Full-path control to easily implement and evaluate strategies

•    Integration of commercialized IFPEN algorithms adopted by OEMs

•    Leveraging new control strategies to satisfy real driving emissions standards

Bibliography

  1. T. Leroy, L. Nowak, X. Gautrot, L-E. Martinez Alvarado, M. Kassa, P. Granier, D. François, N. Bontemps, P. Davies, L. Odillard, G. Ridolfi, R. Puertolas, “SWUMBLE™ 3-Cylinder High Efficiency Gasoline Engine for Future Electrified Powertrains”, 42th Internationales Wiener Motorensymposium, 2021.

  2. T. Leroy, X. Gautrot, L-E. Martinez Alvarado, L. Nowak, “SWUMBLE™ 3-Cylinder High Efficiency Gasoline Engine for Future Electrified Powertrains”, Aachen China symposium, 2020.

  3. X. Gautrot, M. Bardi, T. Leroy, P. Luca, L. Nowak, B. Reveille, “Swumble™ In-Cylinder Fluid Motion for High Efficiency Gasoline SI Engines: development of the second generation”, SIA Powertrain and Energy, 2020.

  4. P. Anselmi, X. Gautrot, O. Laget, M. Ritter, C. Lechard, “Swumble™ In-Cylinder Fluid Motion: a Pathway to High Efficiency Gasoline SI Engines”, SIA Powertrain and Energy, 2019.

  5. G. Bourhis, O. Laget, R. Kumar, X. Gautrot, “Swumble™ In-Cylinder Fluid Motion: A Pathway to High Efficiency Gasoline SI Engines”, 27th Aachen colloquium automobile and engine technology, Eurogress Aachen, Germany Aachen, 2018.