Selective catalytic reduction dosing device for introducing reducing agent into flow tube of internal combustion engine, has connector having intermediate piece and cooling medium leading passage which guides flow of cooling medium

摘要

The dosing device comprises a metering module, a receiving sleeve (16), and a dosing unit connected with the flow tube by a connector (18). The connector comprises an intermediate piece (20) and a cooling medium leading passage (26) which guides the flow of liquid or gaseous mixture. The intermediate piece is arranged between the receiving sleeve and the flow tube, and a flange (28) is fixed to the intermediate piece on the flow tube.