Turbocharged engine

Turbocharged engine
Industry data, pressure wave supercharger system: using high-pressure exhaust gas pulse wave forcing compressed air. This system speed boost performance, good acceleration, conditions range; but large size, lightweight, and great noise. 
And then into the cylinder. When the engine speed to accelerate, turbo (Turbo is actually an air compressor using engine exhaust as a power turbine to drive a turbine room (located in the row airway) to drive the turbine and the impeller at the inlet coaxial? impeller to compress the air filter pipe sent fresh air exhaust discharge speed and turbine speed are simultaneously accelerated to increase the level of air compression, the engine into the air would be increased accordingly, it can increase the output power of the engine a Substantial increase in engine power and torque. An engine fitted with turbocharger, the turbo’s biggest advantage is not on the basis of increasing engine displacement. Its maximum power output is not loaded with the turbocharger compared to about 40% or more increase.
With “T engine home for Tips
Parts of the structure to be strengthened accordingly. Engine to generate the highest burst pressure and average temperature will greatly increase, after the engine through the supercharger. This allows the engine’s mechanical properties, lubricating properties will be affected, but also improve the intake air temperature, so are generally required with a supercharged engine inlet cooling device to reduce the intake air temperature, eengine size and weight will also increase. Therefore, from the use of home for perspective, it is necessary to strengthen the mandatory home for the engine work, attention to using proper disposal methods. Use should note the following: Especially in winter, 1 can not be the car left. After engine start. Should be allowed to idle for some time, so that before the turbocharger rotor high-speed operation for oil lubrication of bearings. So do not be just started Meng throttle to prevent damage to the turbocharger oil seal.
3-5min should be idle then turn off. Engine work, 2. Not immediately turn off. After a long high-speed engineoperation. There is a local oil supply turbocharger rotor-bearing lubrication and for cooling the engine suddenly stop running, the oil pressure fell rapidly to zero, the turbocharger turbine high temperature reached the middle part of the bearing shell supporting the heat can not be quickly away, while still under the turbocharger rotor inertia under the effect of high-speed rotation, so the heat engine suddenly shut down if the state will cause retention within the turbocharger oil overheating and damage to the bearings and shaft. Particularly to prevent the throttle suddenly turn off Meng kicks.
Prevent dust and other impurities into the high-speed rotation of the compressor impeller, 3, adhere to clean. On time and clean air filter. Instability caused by speed or increased wear bushings and seals. Engine oil and filter must be kept clean to prevent debris from entering, or oil lubrication capacity decreased, resulting in premature turbocharger scrapped. Turbocharger assembly, to keep clean, all fittings must use a clean cloth blocked well, to prevent debris falling into the turbocharger, the damage to the rotor. As often in turbocharger operation at high temperatures, oil pipeline due to high temperature, the internal oil likely to have some coke, this will result in a lack of lubrication of the bearing turbocharger damage. Therefore, the oil pipeline in the running for some time after cleaning.
Airway should check the connection of the pipe, 4 always careful to check the functioning of the turbocharger. Before moving to close the car. Prevent loosening, loss caused by failure of the turbocharger and air short circuit into the engine cylinder. When suddenly found dirty oil and crankcase pressure increased rapidly; excessive oil consumption phenomena, the turbocharger is likely to have failed, remove the necessary maintenance.
Supercharged engine types
There are four main categories: Get power from the engine output shaft to drive the turbocharger rotor rotation, 1 supercharger system (Supercharg device on the engine crankshaft by a belt connected to the engine, thereby blowing pressurized air intake manifold hang. Smoother power output; advantages: the rotor speed and engine speed is so there is no corresponding lag or lead. Will lead to boost efficiency is not high. Disadvantages: As it consumes part of the engine power.
Compressor driven by the internal combustion engine exhaust turbine to drive. General boost pressure up to about 180-200kPa or 300kPa, 2 exhaust gas turbocharger systems: the use of engine exhaust to achieve the purpose of supercharger and turbocharger engine without any mechanical contact. Need for additional air intercooler to cool the compressed air to high temperatures. Domestic cars in 1998 on the use of displacement 1.8 Audi 200, Audi A6 1.8T after another until the Passat 1.8T Audi A4 1.8T Jetta 1.8T.
Advantages: Increased efficient than supercharger. Throttle moments after the general needs, Disadvantages: engine power output slightly lags behind the throttle opening. Later there will be amazing engine power burst.  With the more powerful diesel engine. Composite engine output power booster system, low fuel consumption, low noise, 3 composite pressurization system: the exhaust gas turbocharger and supercharger and use. But the structure is too complex.