- What are the differences in their principles?
Which is the ultimate form of power: a turbocharger or a supercharger? Many people only know the names but not the underlying principles. In essence, they both aim to solve the same problem: how to achieve the power and performance of a large engine with a small displacement engine? - In-depth analysis of their principles
- Underlying logic: The power of an internal combustion engine comes from combustion, and the fuel is a mixture of air and fuel. With a fixed displacement, forcing more air in is the only shortcut to increasing power.
- Turbocharging: It’s a “secondary utilization” of exhaust gases. Installed at the exhaust end, it uses the inertia of the exhaust gases to drive the impeller and compress the intake air. It consumes almost no engine power and is extremely efficient, but because it relies on exhaust speed, it causes power lag.
- Supercharging: It’s a “direct transfer” of power. Directly connected to the crankshaft via a belt, it increases power synchronously with the engine speed. It completely eliminates lag, resulting in extremely linear throttle response, but because it’s a “do-or-die” operation, it constantly consumes engine power, so its thermal efficiency is usually lower than that of a turbocharger.
- Advanced Technology: Even within the turbocharger family, there are various layouts, including single-turbo, parallel twin-turbo, and series twin-turbo, and even single-turbo twin-scroll technology that balances responsiveness and power delivery.
- Summary: Turbocharging is currently the optimal solution, balancing performance and economy; supercharging, on the other hand, is more like an obsessive pursuit of ultimate smoothness.
Car bumpers
August 13, 2024
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