Operating internal combustion engine with mechanical charging, variable compression involves operating compressor to set vacuum in air inlet in choke/expander mode for partial load

摘要

The method involves operating a compressor (3) in the induction system to set a vacuum in the air inlet (4) in a choke or expander mode in the partial load range of the internal combustion engine (1) below a reference load value. The pressure in the air inlet can be controled via a choke in the induction system.