The AUTLOG exhaust gas recirculation valve regulates the quantity of waste gas returned into the intake manifold in the outer exhaust gas recirculation,  relating to both engine speed and load.

In exhaust gas recirculation valves, it distinguishes between pneumatic, electropneumatic and electric systems.

Latest technologies for exhaust gas recirculation allow compliance with even stricter emission standards, without loss of performance of the combustion engines.

By lowering the high combustion temperatures, the reduction in the share of NOx for diesel and gasoline engines is given, (environmentally polluting nitrogen oxides and soot particles were reduced).