twc introduce

What is a three-way catalytic converter? A three-way catalytic converter is the most important external purification device installed in a car's exhaust system, which can remove CO from the car's exhaust Harmful gases such as HC and NOx are converted into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. Simply put, they purify the exhaust gas. The working principle of a three-way catalytic converter is as follows: 1. When the engine exhaust gas is discharged through the exhaust pipe, due to the catalytic effect of the purifying agent in the three-way catalytic converter, the activity of C0, HC, and NOx is enhanced, leading to oxidation and reduction reactions. 2. C0 is oxidized to colorless and non-toxic C02 at high temperatures, HC compounds are oxidized to H20 and C02 at high temperatures, while NOx is reduced to N2 (nitrogen) and 02 (oxygen), thereby purifying the engine's exhaust emissions)

Method for installing a three-way catalytic converter

Method for installing a three-way catalytic converter: ① Use 8 bolts to install 2 heat shields on the new preheated three-way catalytic converter. ② Install the new gasket, protective ring, and sealing gasket onto the preheated three-way catalytic converter. ③ Use 3 bolts and 2 new nuts to install the preheated three-way catalytic converter with a tightening torque of 29N. m. ④ Use bolts and nuts to install the exhaust manifold bracket with a tightening torque of 42N. m. ⑤ Use bolts and nuts to install the No.1 exhaust manifold bracket with a tightening torque of 42N. m. ⑥ Connect the secondary oxygen sensor connector

Chery QQ3EV New Energy introduce

The QQ3 pure electric vehicle is a small pure electric sedan developed on the Chery S11 vehicle platform. The vehicle is equipped with a 60V 6KW electric drive system and a 150Ah high-performance power battery The entire vehicle manufacturing process of QQ3 pure electric vehicle is very mature, following the traditional automobile manufacturing process platform, and there is no significant difference in appearance from the traditional QQ3. The word "EV" at the tail can distinguish it as a zero emission, pollution-free green transportation vehicle. The internal space and other aspects are also similar to the traditional QQ3. According to technicians, the motor tachometer has replaced the traditional engine tachometer, making it easy to monitor the operating speed of the motor in real time; The battery level is converted into voltage and displayed on the traditional QQ3 car fuel gauge. The ideal vehicle speed and battery level are marked in green to remind drivers to operate the vehicle better and extend its lifespan