SYSTEM FOR NEUTRALIZING NITROGEN OXIDES IN EXHAUST OF INTERNAL COMBUSTION ENGINE Russian patent published in 1995 - IPC

FIELD: engine engineering. SUBSTANCE: common neutralizing system includes output manifold with catalytic reactor and nozzle, tank for ammonia water, electronic control unit, and pickup of regime of engine operation. The proposed system additionally has source of compressed air, two electropneumatic valves mounted in air pipe line and connected with the electronic control unit, and pressure gauge coupled with the air space of the tank filled with ammonia water from one side and with electronic control unit from the other side. The system is sensitive to changing of operation regime (load) of the engine and controls supplying of ammonia water to the outlet manifold on the surface of the catalytic reactor in response of the engine loading. EFFECT: decreased toxicity of exhaust gases. 1 dwg