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

BMW 320i introduce

The dimensions of the BMW 320I model are 4531mm * 1817mm * 1421mm, with a reference price of 31000-388800 yuan. BMW started its business by producing aviation engines, so the blue color on the logo represents the sky, and the white color represents the symmetrical graphics of the propeller/blue and white markings; The predecessor of the state emblem/BMW, which is also the location of the company in Bavaria, was an aircraft factory. It was founded on March 7, 1916 and was initially famous for manufacturing streamlined biplane reconnaissance aircraft. At that time, the company's name was BFW (BayerischeFlugZeugWork), meaning "Bavarian Aircraft Manufacturing Plant", and the founder of the company was Gustan Otto, His father was a renowned inventor of four stroke internal combustion engines, and his high achievements in aviation made him ambitious in manufacturing cars. He wrote a glorious chapter in the history of automobiles, which is the founding of the BMW factory in Germany, which is loved by millions of car enthusiasts today