The complete turbocharger engine generates power by burning fuel in the cylinder to do work.

10-12-2021

The complete turbocharger engine generates power by burning fuel in the cylinder to do work.


The influence of the clogging factor of the flow passage of the complete turbocharger is one of the direct consequences of the clogging of the flow passage of the complete turbocharger is to increase the resistance of the airflow in the system. When the diesel engine is running, the gas flow route of the supercharging system is: compressor inlet filter and muffler → compressor impeller → compressor diffuser → air cooler → scavenging box → diesel engine air inlet (valve) → exhaust port (Valve) → Exhaust pipe → Exhaust gas turbine nozzle ring → Exhaust gas turbine wheel → Chimney. The circulation area of each component is fixed. If any link in the above flow path is blocked, such as dirt, carbon formation, deformation, etc., the back pressure of the compressor will increase due to the increase of flow resistance, and the flow rate will decrease, causing surge. Among them, the easily contaminated parts are the compressor inlet filter, compressor impeller and diffuser, air cooler, diesel engine inlet (sweep) air port and exhaust port (valve), exhaust gas turbine nozzle ring, and exhaust gas turbine impeller. Under normal circumstances, the blockage of the complete turbocharger's airflow passage is the main cause of its surge.

 

The complete turbocharger engine cannot be turned off immediately after running at high speed for a long time. When the engine is working, a part of the oil is supplied to the complete turbocharger rotor bearing for lubrication and cooling. After the running engine suddenly stops, the oil pressure quickly drops to zero, the high temperature of the complete turbocharger turbine part is transferred to the middle, the heat in the bearing support shell cannot be quickly taken away, and the complete turbocharger rotor is still rotating at high speed under the action of inertia. Therefore, if the engine shuts down suddenly when the engine is hot, it will cause the oil retained in the complete turbocharger to overheat and damage the bearings and shaft. In particular, it is necessary to prevent the sudden flameout after a few kicks of the accelerator.

 

As we all know, a complete turbocharger engine generates power by burning fuel in the cylinder to do work. Since the amount of fuel input is limited by the amount of air sucked into the cylinder, the power generated by the engine will also be limited. If the engine's operating performance Already in a Z-optimal state, increasing the output power can only increase the amount of fuel by compressing more air into the cylinder, thereby improving the combustion performance. Therefore, under the current technical conditions, the complete turbocharger is the only mechanical device that can increase the output power of the engine without changing the working efficiency.


Full Turbocharger


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