Exhaust gas circulating pipe structure

The utility model discloses an exhaust gas circulating pipe structure, including connecting in engine cylinder's air inlet piping and the exhaust gas circulation pipe of setting on the air inlet piping lateral wall, one side port of exhaust gas circulation pipe is the exhaust gas supply line mouth, the opposite side port is the waste gas port of giving vent to anger, it connects to give vent to anger interface flange through waste gas between air inlet piping and the exhaust gas circulation pipe, waste gas is given vent to anger the port and is passed waste gas and give vent to anger interfaceflange and put into in the air inlet piping, and waste gas is given vent to anger stretching into of port and is equipped with a plurality of through -holes on the nose's in the air inlet piping thepipe wall, air inlet piping's front end gets into the end for fresh air, the rear end is the gas mixture exit end. The utility model discloses accelerate waste gas mixed speed for waste gas and freshair be quick homogeneous mi