The Mahle downsized engine as technology demonstrator concept, layout and design

Abstract

Downsizing — the combination of reduced engine displacement and pressure charging — is an important option, especially for gasoline engines, to minimise fuel consumption and CO₂ emissions while maintaining good driveability. To demonstrate the possibilities and core technologies of an advanced and innovative downsizing concept, Mahle is currently developing its own engine. This engine with a displacement of 1.2 litres will achieve values for torque and power output, which will enable a 50 % downsized engine, offering a potential for the reduction of fuel consumption and CO₂ emissions up to 30% in the New European Driving Cycle (NEDC).