An engine exhaust gas recirculation mixer for an engine , the mixer comprising: a plurality of convergent nozzles defining a plurality of flow passages that extend alongside one another in a flow path from an engine intake air inlet of the mixer to an outlet of the mixer , the plurality of convergent nozzles each converging toward the outlet of the mixer ; an exhaust gas receiver housing comprising an exhaust gas inlet into an interior of the exhaust gas receiver housing ; and a plurality of convergent-divergent nozzles in the flow path each corresponding to one of the plurality of convergent nozzles , the plurality of convergent-divergent nozzles extending alongside one another, the plurality of convergent-divergent nozzles each comprising an air-exhaust gas inlet in fluid communication to receive fluid flow from a corresponding convergent nozzle and the interior of the exhaust gas receiver housing ; characterized in that : the air-exhaust gas inlet of each of the plurality of convergent-divergent nozzles is an air-fuel-exhaust gas inlet in communication with a fuel supply into the mixer , wherein the fuel supply comprises fuel supply ports positioned upstream of the convergent-divergent nozzles , and the fuel supply ports are located on a side of each of the convergent nozzles or downstream of a convergent end of each of the convergent nozzles and upstream of the exhaust gas inlet . a plurality of convergent nozzles defining a plurality of flow passages that extend alongside one another in a flow path from an engine intake air inlet of the mixer to an outlet of the mixer , the plurality of convergent nozzles each converging toward the outlet of the mixer ; an exhaust gas receiver housing comprising an exhaust gas inlet into an interior of the exhaust gas receiver housing ; and a plurality of convergent-divergent nozzles in the flow path each corresponding to one of the plurality of convergent nozzles , the plurality of convergent-divergent nozzles extending alongside one another, the plurality of convergent-divergent nozzles each comprising an air-exhaust gas inlet in fluid communication to receive fluid flow from a corresponding convergent nozzle and the interior of the exhaust gas receiver housing ; characterized in that : the air-exhaust gas inlet of each of the plurality of convergent-divergent nozzles is an air-fuel-exhaust gas inlet in communication with a fuel supply into the mixer , wherein the fuel supply comprises fuel supply ports positioned upstream of the convergent-divergent nozzles , and the fuel supply ports are located on a side of each of the convergent nozzles or downstream of a convergent end of each of the convergent nozzles and upstream of the exhaust gas inlet . the air-exhaust gas inlet of each of the plurality of convergent-divergent nozzles is an air-fuel-exhaust gas inlet in communication with a fuel supply into the mixer , wherein the fuel supply comprises fuel supply ports positioned upstream of the convergent-divergent nozzles , and the fuel supply ports are located on a side of each of the convergent nozzles or downstream of a convergent end of each of the convergent nozzles and upstream of the exhaust gas inlet . <EOS>