transmission housing introduce

Transmission housing: The transmission housing and cover are used to install the transmission mechanism, shifting device, and some control mechanisms, while storing lubricating oil. In order to reduce the weight of the car, for sedans, the transmission housing and cover are often made of aluminum alloy or magnesium alloy. The transmission housing and cover of medium and heavy vehicles are generally made of cast iron to ensure their strength requirements. The material of the transmission housing is gray cast iron, commonly used as HT200. The transmission housing is the basic component, Used for installing and supporting all parts of the gearbox and storing lubricating oil. It has precise boring holes for installing bearings. The gearbox bears variable loads, so the housing should have sufficient stiffness, with reinforced inner walls and complex shapes, mostly made of castings (made of gray cast iron, commonly HT200). For ease of installation, the transmission and control parts are often made into split sections, and the box cover is connected to the housing by bolts and reliably positioned. There are oil filling and drainage ports, and oil level inspection dipstick ports on the housing, Heat dissipation should also be considered)

Common faults of automatic transmissions include:

Common faults of automatic transmissions include: 1. Oil leakage: Oil seeps out from the gearbox housing or oil pan due to aging seals, poor sealing, and poor manufacturing processes, resulting in sand holes in the housing; 2. Engine shutdown when shifting into D or R gear: The engine shutdown when shifting into D or R gear may be due to damage to the locking solenoid valve; 3. Locked gear: The input and output signals of the gearbox are incorrect or the circuit components themselves have poor wiring; 4. No response when shifting: Shift into D or R gear, then release the brake and the vehicle will not move. This situation is often caused by damage to the input shaft or reverse clutch; 5. During driving, the vehicle may experience gear shifting shock and jerking, which may be caused by dirty transmission oil, resulting in valve body jamming; 6. Transmission slippage and weak acceleration: When the car is driving, there is a sound of the engine idling due to the acceleration of the fuel gate. This phenomenon is mostly caused by burnt clutch plates

Brilliance BMW X1 introduce

The domestically produced Brilliance BMW X1 and the imported version X1 are almost identical. For BMW, there are no missing iconic details. The front face still features the standard dual kidney grille, coupled with the energetic triangular eyes, giving the entire front face a certain aura. The main difference between the domestically produced X1 xDrive20i and 28i on the front face is that they use a black grille while the 28i uses a chrome grille, The 28i has an additional horizontal chrome strip on the lower grille compared to the 20i. On the side of the Brilliance BMW X1, there is not much decoration, and a slightly upturned waistline gives its side a sense of power. The snowflake shaped five spoke aluminum alloy wheels add some fashionable elements to this sense of power, and the two are well integrated. On the C-pillar at the rear of the car, The classic corners of BMW are clearly visible, while the 28i has an additional silver skirt trim on the side compared to the 20i. At the rear, X1 continues to follow the rugged route of an SUV, but what reflects this ruggedness is the few simple lines. The large rear window occupies the majority of the rear. The sharp LED tail lights in the shape allow X1's body lines to continue here. The difference between the 20i and 28i at the rear is not significant, Mainly in terms of the silver trim on the rear bumper, the 28i is taller