Internal combustion engine exhaust gas emission purification device

Abstract

The invention provides an internal combustion engine exhaust gas emission purification device. The internal combustion engine exhaust gas emission purification device comprises a water tank (100), a hydrated gas unit (200) and a main silencer (300). The hydrated gas unit (200) is communicated with the water tank (100) through a water inlet pipe (101). A vapor tube (201) penetrates through the hydrated gas unit (200) to be in a front exhaust pipe (802). An outlet of the water inlet pipe (101) in the hydrated gas unit (200) is provided with a drain plug (202) regulated through a float (203). An overflow tube (204) is arranged in the hydrated gas unit (200), an upper opening of the overflow tube (204) is above a preset water level, and a lower opening of the overflow tube (204) is arranged outside the bottom of the gas hydrated unit (200). The gaps in the main silencer (300) are provided with lava (301). The internal combustion engine exhaust gas emission purification device has the advantages of being low in failure rate, long in service life, low in production and use cost, high in exhaust gas purification rate and wide in application range.

Description

technical field [0001] The invention relates to a tail gas emission purification device, in particular to an internal combustion engine tail gas emission purification device, which belongs to the field of environmental protection devices. Background technique [0002] With the improvement of people's living standards, the rate of car ownership and utilization is also increasing, and the pollution caused by vehicle exhaust emissions has become a major problem in environmental protection. [0003] Existing internal combustion engine exhaust purification devices are common such as three-way catalytic converters. Because the fuel quality in China is generally poor, the fuel contains sulfur and phosphorus, and the antiknock agent MMT used contains manganese. The discharge of exhaust gas will form a chemical complex on the surface of the oxygen sensor and inside the three-way catalytic converter. Cars equipped with three-way catalytic converters cannot use leaded gasoline. In ad...

AI Technical Summary

Problems solved by technology

It is precisely because of many factors that after a certain mileage, the car will not only produce carbon deposits in the intake valve and combustion chamber, but also cause poisoning and failure of the oxygen sensor and three-way catalytic converter.

Faults such as blockage of the three-way catalytic converter and EGR valve blocked by deposits, etc., cause the engine to work abnormally, resulting in problems such as increased fuel consumption, decreased power, and excessive exhaust gas.

It can be seen that the failure rate of the three-way catalytic converter is relatively high, the service life is short, and the production and use costs are relatively high

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