The supercharging system of the recommender is to improve the fuel economy and increase the cycle fuel supply. The recommender occupies an important position in the car. Today's edition will introduce the type of the supercharging system of the recommender to us.
Suggested type of turbocharging system: mechanical turbocharging
Structure: The mechanical supercharger is driven by the crankshaft of the recommender through the gear accelerator, or by the crankshaft tooth drive pulley through the tooth drive belt and electromagnetic clutch.
Features: Mechanical turbocharging can effectively advance the recommended engine power. Compared with turbocharging, its low-speed turbocharging effect is better. In addition, the mechanical supercharger and the proposed machine are simply matched, and the structure is relatively compact. However, the fuel consumption rate is slightly higher than that of the non-turbocharger recommender because it consumes the recommended engine power to drive the turbocharger.
Suggested type of turbocharging system: gas wave turbocharging
Structure: The crankshaft drives the air wave supercharger rotor through the drive belt. The exhaust pressure wave is used to compress the air, and the inlet pressure is used before.
Features: The structure of the gas wave supercharger is simple, easy to process, low operating temperature, no heat-resistant data, no cooling. Compared with turbocharging, its low-speed torque characteristics are good, but its volume is large, noise level is high, and installation orientation is bound by certain constraints. The supercharger can only be used in a low speed range. Because the highest speed of diesel engine is relatively low, it is mostly used in diesel engine.
Suggested type of turbocharging system: turbocharging
Structure: Use exhaust gas turbine to drive the operation of compressor impeller installed in coaxial with it. Fresh air enters the cylinder after pressurizing in the compressor.
Features: Turbocharger benefits are better economy than mechanical and non-turbocharging recommenders, and can significantly reduce the emission of harmful gases and noise levels. The disadvantage of turbocharging is that the torque increases little at low speed, and the transient response is poor when the recommended engine operating conditions change, resulting in poor acceleration of the car, especially at low speed.
Suggested Type of Turbocharger System: Compound Turbocharger
Structure: Proper combination of mechanical turbocharging and turbocharging
Series compound turbocharging: In this turbocharger system, air is first pressurized by the turbocharger, then cooled by the intermediate cooler, and then pressurized by the mechanical turbocharger. This pressurization method is mainly used in the high-pressure recommendation machine.
Parallel compound supercharger: Supercharged air is supplied to the recommender by mechanical supercharger and turbocharger together. Mechanical turbocharging is the primary method in the low speed range, while turbocharging is the primary method in the high speed range. This turbocharging system improves the low-speed torque characteristics of the proposed engine.
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