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: 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
The Dongfeng A9 and Citroen's all-new C6 are built on the same platform, but in terms of appearance, the new car looks calm and atmospheric, and adopts a family style design with "Qian Gua" elements. The headlights and grille on both sides are connected, and LED light sources are also used inside. On April 12, 2016, the Dongfeng A9 was officially launched, with a price range of 179700 to 219700 yuan. According to Sina Auto News, we recently learned from relevant channels that the pre-sale price range of the new mid to large sized Dongfeng A9 under Dongfeng Fengshen is 179700 to 229700 yuan. Based on this latest news, we also contacted the Dongfeng Fengshen 4S store, who said that the pre-sale price of the car is currently announced to the public. From 170000 to 220000 yuan, it can be seen that the pre-sale price of 179700 to 229700 yuan is still quite informative. It is reported that the Dongfeng A9 will be officially launched on April 12, 2016
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