turbocompounding

mechanics

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Last updated

July 14, 2026

Quick Summary

A turbocompound engine is a type of engine that uses the exhaust from its main component to drive smaller auxiliary turbines. This process is known as compounding, where a working fluid, such as steam or exhaust gases, is expanded in stages to maximize efficiency and minimize energy loss.12

In essence, the exhaust gases, instead of being wasted, are harnessed to power additional turbines. This recovered energy can then be used to enhance the engine's overall performance or efficiency. This mechanical compounding allows for a higher expansion ratio, leading to more effective use of the working fluid.2

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Combinations of machinery
This technique was known as turbocompounding. Turbocompounding, in the guise of turbocharging, is common in diesel technology. Absent an excessively long stroke, a diesel cylinder cannot fully expand its working fluid. One remedy is to exhaust the cylinder gas into a turbine that drives a compressor that in turn supplies…
Read More
This technique was known as turbocompounding. Turbocompounding, in the guise of turbocharging, is common in diesel technology. Absent an excessively long stroke, a diesel cylinder cannot fully expand its working fluid. One remedy is to exhaust the cylinder gas into a turbine that drives a compressor that in turn supplies…
Read More