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

Audi S8 introduce

The Audi S8 is the sporty performance version of the Audi A8. The all-new Audi S8 is only modified from the new A8 in terms of exterior and interior details. In terms of exterior design, the Audi S8 is not much more aggressive than the regular A8. In terms of power, the all-new Audi S8 is equipped with a 4.0TFSI twin turbocharged engine, with a maximum power of no less than 520 horsepower and a continuous torque output of 650N · m at 1700rpm-5500rpm. Audi launched the first generation S8 as early as 1994, As the sport version of Audi's top luxury car A8, it applied all of Audi's top technologies at the time, such as an all aluminum body frame and full-time four-wheel drive. Luxury cars were originally aimed at high-end demand, and most of them should be aimed at rear seat users, so the sport version S8 that leans towards driving pleasure is definitely only aimed at a few out of a few. Audi had been optimistic about this niche market for a decade, and now continues to make every effort to launch the new generation S8, And still playing the role of "Audi's cutting-edge technology collection"