An emission control method that involves recirculating exhaust gases from an engine back into the intake and combustion chambers. This lowers combustion temperatures and reduces NOx. (See also nitrogen oxides.)
EXHAUST GAS RECIRCULATION (EGR)
Meaning of EXHAUST GAS RECIRCULATION (EGR) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012