A complete vehicle including engine has been developed with the main aims of fulfilling future noise and pollutant emission limits but also to satisfy customers demands in terms of comfort and low NVH level and good fuel economy. The engine layout and design features are discussed with the thermodynamic calculation and the optimisation of ports and the variable intake system. The modal analysis of the engine parts and the simulation of the surface vibrations shows the effect of acoustic measures and the obtained results. Ancillaries like CVT drive, double link lever engine mount, water cooling system, lubrication system, exhaust system with catalyst and secondary air are discussed. Characteristic diagrams and driving cycle emission show the achieved performance, low emissions and fuel economy.
Development of a 150cc, 4-Valve CVT Engine for Future Emission and Noise Limits
Sae Technical Papers
International Off-Highway & Powerplant Congress & Exposition ; 1998
1998-09-14
Conference paper
English
Development of a 150cc, 4-valve CVT engine for future emission and noise limits
Automotive engineering | 1998
|Vehicle-noise-emission limits - Influence on traffic noise levels past and future
Tema Archive | 1994
|Truck Diesel Engine Development for Future European Emission and Noise Standards
British Library Conference Proceedings | 1992
|Development of Future Low Emission Engine Oils
SAE Technical Papers | 2003
|