Supercharger Component
The supercharger compresses the air to increase the intake density of the engine, so that the liter power of the engine can be increased. Using the high temperature exhaust gas of 700-900 degrees Celsius discharged by the engine, the turbine in the turbine is driven to rotate, and the turbine shaft drives the impeller in the compressor to rotate at high speed, compresses the air in a centrifugal way, and improves the intake density of the engine to 2-3 atmospheres. Thus, we can inject more fuel into the engine to achieve the purpose of increasing the engine's own power.
One of the direct consequences of the blockage of the supercharger channel is to increase the resistance of the airflow in the system. When the engine is running, the gas flow route of the pressurization system is: compressor inlet filter and muffler → compressor impeller → compressor diffuser → air cooler → scavenging box → diesel engine intake port (valve) → exhaust port (valve) → exhaust pipe → exhaust turbine nozzle ring → exhaust turbine impeller → chimney. The circulation area of each component is fixed. If any link of the above flow route is blocked, such as dirt, carbon, deformation, etc., it will increase the back pressure of the compressor due to the increase of flow resistance, reduce the flow rate, and cause surge. The parts that are easy to get dirty are compressor inlet filter, compressor impeller and diffuser, air cooler, diesel engine inlet (sweep) air port and exhaust port (valve), exhaust gas turbine nozzle ring, exhaust gas turbine impeller. Under normal circumstances, the blockage of the airflow channel of the turbocharger is the main cause of its surge.
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