SU1560741A1 - Arrangement for purifying ic-engine exhaust gases - Google Patents

Abstract

The invention makes it possible to increase the exhaust gas cleaning efficiency of an internal combustion engine. The device contains consistently installed in the exhaust pipe 5 catalytic 2 and liquid 3 neutralizers. The exhaust pipe 5 is equipped with a mixing chamber 4, one input of which is directly connected to the output of the catalytic 2 neutralizer, the other to the bypass pipeline 6, in which the gas valve 7 and the ozonizer 8 are successively located, and the output to the liquid inlet of the three neutralizer. The position of the gas valve is determined by the sensor signal 9 of the frequency of rotation of the engine shaft, which reduces the emissions of nitrogen oxides due to the oxidation of nitrogen oxide with ozone to nitrogen dioxide and the absorption of water by the latter in the liquid neutralizer. 1 il.

Description

SL OE

about

22

The invention relates to mechanical engineering specifically to exhaust gas purification systems for diesel engines from harmful components.

The purpose of the invention is to increase efficiency,

The drawing shows an engine with an exhaust gas purification device.

The device comprises an engine 1, a catalytic 2 and a liquid 3 neutralizer, a mixing chamber 4} installed in the exhaust pipe 5, a bypass pipe 6 with gas damper 7 and ozonizer 8 sequentially arranged in it, and an engine speed sensor 9.

When the engine 1 is operating, the exhaust gases, the passage through the exhaust pipe 5, enter the catalytic converter 2. Part of the exhaust gases, cleaned of products of incomplete combustion of fuel, is directed through the exhaust pipeline 5 to the mixing chamber 4, and the other part enters it bypassing - to the pipeline 6, the passage through the gas valve 7 and the ozonizer 8. With an increase in the frequency of rotation of the engine shaft, the degree of opening of the gas valve 7 increases. In the ozonizer 8, the oxidation of free oxygen, which is in exhaust gas to ozone From the ozonizer 8, a mixture of ozone and exhaust gases is also fed through the bypass pipe

a reaction takes place in the mixing chamber

wherein

40

BUT -5- Oe - 3N02

(one)

five

0

five

0

five

0

Since the amount of nitric oxide N0 is 0.1% of the total exhaust gas volume, the amount of ozone fed to the mixing chamber, according to reaction (1), must be at least 0903% of the total exhaust gas volume. From the mixing chamber 4, the exhaust gases enter the liquid neutralizer 3, where nitrogen dioxide is absorbed by the water by the reaction

3 N02 + - 2 SHOE + N0. (2)

Purified exhaust gases are released into the atmosphere.

Claims (1)

Invention Formula An exhaust gas purification device for an internal combustion engine comprising catalytic and liquid neutralizers in series in the exhaust line and an ozonizer placed before the liquid neutralizer, characterized in that, in order to increase efficiency, it is equipped with a displacement chamber located in the exhaust line between the catalytic and liquid neutralizers and connected with a bypass pipe to the output of the catalytic converter, the frequency of rotation is neither the engine shaft nor the gas valve, the latter and the ozonizer are installed in the bypass pipeline, and the gas valve is electromechanically connected to the engine shaft speed sensor.