The exhaust-gas turbocharger uses the energy of the exhaust gas to compress the aspired air. In this way the engine is supplied with a greater air mass into which a correspondingly larger amount of fuel can be injected. Engine performance and maximum torque – relative to the piston displacement volume – are increased.
Turbocharging is the precondition for downsizing: reducing the piston displacement volume while retaining the same engine performance. This will result in engines with lower fuel consumption and correspondingly reduced CO2 output.
Bosch develops and manufactures turbochargers within the joint venture Bosch Mahle Turbo Systems.

