Turbocharger Impellers
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- Turbocharger Impellers
What is Turbocharger Impellers?
At Sinvo Industries, we specialize in high-quality vacuum investment castings, including turbocharger impellers. Discover more about this essential component, its materials, and its impact on engine performance.
Turbochargers rely on impellers to draw in and compress air, enhancing engine power and fuel efficiency. They work alongside the turbine, shaft, and compressor to optimize performance.
In a turbocharger system, exhaust volume directly impacts power output. The turbocharger has a hot side with a turbine and a cold side where the impeller compresses clean air.
Also called a compressor wheel, the impeller features a circular base with angled radial blades. Its shape, blade distribution, and spin speed determine air pressurization and oxygen intake for combustion.
Connected to the turbine via a shaft, the impeller spins as exhaust drives the turbine. This action compresses incoming air, increasing oxygen levels for enhanced fuel combustion, boosting engine power and torque.
- Turbocharger Impellers
Engine Efficiency and Power
Common materials include:
- Titanium & Stainless Steel: Popular for their durability under high pressure and temperature.
- AISI 4063 Steel, Inconel 718, Titanium 2646: Selected for their strength, heat resistance, and ability to handle centrifugal loads.
Turbocharger impellers enhance engine efficiency and power through:
- Increased Torque & Power: By boosting oxygen supply, the impeller enables more fuel combustion, increasing torque and power output.
- Optimized Combustion Efficiency: More efficient fuel burning allows smaller engines to generate the same power as larger ones.
- Reuse of Exhaust Energy: Driven by an exhaust-powered turbine, the impeller recycles waste energy to improve engine performance.

