Figure 6. Schematic diagram of different In-direct injection combustion chambers used. (a) Swirl combustion chamber (b) pre-combustion chamber

From

A Review on the Different Geometries of Combustion Chamber in CI Engines on Performance, Ignition and Emission

Alireza Lotfi, Hassan Ghassemi

Journal of Atmospheric Pollution. 2017, 5(2), 40-46 doi:10.12691/jap-5-2-1