Both turbochargers and supercharger are used to increase the intake pressure of the internal combustion engine and increase the power output of the engine, but there are some differences in their working principles and characteristics. The difference between turbochargers and supercharger will be introduced below.

The turbocharger utilizes exhaust gas energy to drive the turbine rotor, increasing intake air density by compressing the intake air. Its working principle is based on the recycling and utilization of exhaust gas energy, reducing dependence on additional energy. The supercharger drives the compressor of the supercharger through the mechanical transmission system, thus increasing the intake pressure. In contrast, the supercharger requires additional mechanical energy input, which is usually driven by the crankshaft of the engine, so it will consume a certain amount of engine power.

Turbochargers have higher efficiency and response speed. The turbocharger is directly driven by exhaust gas power, and its rotor can achieve high-speed rotation, allowing the compressor to respond quickly and provide continuous and stable turbocharging effect. The response speed of the supercharger is relatively slow and limited by the mechanical transmission system, so it may be inferior to the turbocharger in terms of transient response and power output.

Turbochargers perform better in high altitude and high-temperature environments. The turbocharger is not limited by environmental conditions and can automatically adjust the boost pressure based on intake pressure and temperature to adapt to different operating conditions. Under the high altitude and high temperature environment, the supercharger may not provide stable supercharging effect due to the limitation of engine power and mechanical transmission.

Turbocharger and supercharger have obvious differences in working principle, efficiency, response speed and adaptability. Choosing a suitable turbocharger type based on different application needs and environmental conditions can fully tap into the performance potential of internal combustion engines, improve combustion efficiency, increase power output, and meet specific power requirements.