Introduction to the exhaust gas purifying apparatus

l With the growing car ownership, car  obd2 software exhaust on human health hazards and environmental pollution, day upon day. In this regard, the countries in the world have developed regulations and standards to control harmful emissions car at a lower level. In order to meet emission standards, must be of the engine exhaust gas purification. In recent years, the automotive sector to develop and create a purifying exhaust new technologies and new devices.
A harmful engine emissions
Piston engine-powered car is one of the major sources of pollution in urban air. Vehicle emissions of the main pollutants carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulates. CO is the incomplete fuel combustion products, is a colorless, odorless, tasteless gas. Its affinity with the hemoglobin in the blood is 300 times that of oxygen, so when a person inhales CO, the blood's ability to absorb and transport oxygen decreases, causing dizziness, headache and other symptoms of poisoning. When inhaled with volume concentration of 0.3% CO gas can cause death. NOx is primarily refers to NO and NO2, is generated in the combustion chamber of the high temperature oxygen-rich environment. NOx concentration in the air at 10 ~ 20ppm stimulate the oral and nasal mucosa, cornea. NOx exceed 500ppm when, a  OBDII Code Info  few minutes can make a person appear emphysema and death.
Second, the thermostat intake system
The thermostat intake system also known as the intake air temperature to automatically adjust the system. It is by the air heating means (also known as hot furnace) and control means mounted in the air cleaner inlet guide tube constituting a thermostatic intake system used for injection type engine of the carburetor or throttle body. When the engine is cold after starting work under idle or small throttle opening degree, due to the low temperature, the required rich mixture supplied to the engine in order to maintain its stable operation. But the concentrated gas mixture combustion is not complete, the exhaust of HC and CO more.

 Supply lean gas can reduce harmful gas emissions, but at low temperatures the engine can not be a stable operation. The usefulness of the intake system of the thermostat is in the engine cold start, the hot air supplied to the engine, then even if the supply of lean gas, hot air, can also promote gasoline full   obd2 usb vaporization and combustion, thus reducing emissions of CO and HC, and improved cold engine running performance. Thermostat intake system when the engine temperature, ambient air supplied to the engine without heating.