Cool2Power - Increased petrol engine power and efficiency through an AC driven intercooling system

The supercharging potential of SI engines in passenger cars is mainly limited by self-ignition and turbo charger turbine temperature. A reduced charge air intake temperature would allow for a higher boost ratio and engine load or an increase in efficiency. The research in this paper shows experimental results using a turbocharged 1.4 l SI-engine to prove the concept of extreme charge air cooling using a modified air condition system. Maximum torque was increased by up to 12.5%. Assuming the original full load limit, fuel consumption could be reduced by 9% in some operating points.