What is the structure of the turbocharger?
Turbocharger is a very important part in our car. It is a technology that uses internal combustion engine to drive air compression and promote automobile engine emission. Therefore, all partners attach great importance to turbochargers. What is the structure of the turbocharger? Let's briefly introduce our friends in the auto department first!
What is the structure of the turbocharger? The history of mdash & ampMdash development
Who is the inventor of turbocharger? It is generally believed that Swiss engineer Beech applied for this patent in 1905. The key applications at that time were aircraft engines and tank engines. It was not until 196 1 year that General Motors of the United States began to install turbochargers on one of its models. In 1970s, as a turning point of turbocharging, Porsche 9 1 1 with supercharged engine came out. However, Saab in Sweden is the only company to revive turbocharger technology. Its Saab 99 model introduced in 1977 spread the turbocharging technology more widely, but at that time, turbocharging was only installed on the gasoline engine of the car. It was not until the mid-1980s that European and American truck manufacturers applied turbocharging technology to their diesel engines, and it was not until this decade that domestic cars became popular with turbocharged models.
What is the structure of the turbocharger? The main purpose of mdash & ampMdash
The key function of turbocharging is to increase the air intake of the engine, which will increase the power and torque of the engine and make the car more dynamic. The maximum power of the engine with turbocharger can be increased by 40% or even higher than that of the engine without turbocharger. This means that the same engine can output more power after being supercharged. Take the 1.8T turbocharged engine that we often encounter as an example. After supercharging, the power can reach the level of 2.4L engine, but the fuel consumption is not much higher than that of 1.8L engine. The other is to improve the rationality of fuel and reduce exhaust emissions.
What is the structure of the turbocharger? Mdash & ampMdash structural principle
The earliest turbochargers were used in sports cars or formula racing cars, so in some racing competitions with limited engine displacement, the engine can get more power. As we all know, the engine outputs power by burning the fuel in the cylinder to do work. Because the fuel input is limited by the amount of air sucked into the cylinder, the output power of the engine will also be limited. If the running performance of the engine is in the best state, and then the output power can only be improved by compressing more air into the cylinder to replenish fuel, then the combustion work capacity will be improved. Therefore, under the existing technical conditions, the turbocharger is the only mechanical device that can increase the output power of the engine without changing the working efficiency.
Adjustment skills of turbocharger bypass valve
Turbocharged engine is widely used because of its advantages of low displacement and high power, and supercharger is the most important part of turbocharged engine. The supercharger bypass valve can adjust the pressure of the supercharger by adjusting the length of the valve rod. What happens when the supercharger bypass valve stem becomes shorter?
What happens when the supercharger bypass valve stem becomes shorter?
The bypass valve stem is usually used to adjust the turbine pressure. If the bypass valve of the supercharger is not faulty, shortening the bypass valve stem will increase the turbine pressure, while extending the bypass valve stem will reduce the turbine pressure.
I don't think the higher the turbine pressure, the better. It depends on the specific conditions of the engine. Some models cannot withstand excessive turbine pressure. If the turbine pressure is forcibly increased, it will only affect the durability of the vehicle and easily affect the engine overheating.
How to adjust the bypass valve of turbocharger?
The most common problem is to adjust the position of the stem nut. The position of the nut will change the length of the valve stem, thus affecting the pressure of the turbine. Some cars use solenoid valves, which are adjusted by the electronic control unit. Only when the computer enters the ECU can the working state of the bypass valve be changed.
It should be noted that we do not advocate the owner to adjust the valve stem by himself. Because adjusting the valve stem has a great influence on the dynamic performance and durability of the vehicle, it is easy to damage the engine without relevant professional knowledge. What is the structure of the turbocharger? Adjustment skills of turbocharger bypass valve @20 19