The historic and technically formal engineering term for a turbocharger. It describes a forced induction device where an exhaust-driven turbine spins a compressor wheel to pack dense air into the cylinders, increasing power output and efficiency.
The manual for this old radial engine lists specific clearances for the turbosupercharger bearings.
You will rarely hear a mechanic say the full word unless they are reading from a vintage service manual or working on aviation-derived engines.
Also heard as
- turbo
- turbocharger
Related terms
Supercharger
A mechanically driven air compressor that forces extra air into an engine.
Forced induction
The process of compressing intake air to increase the power output of an internal combustion engine.
Twincharger
A forced induction system that uses both a supercharger and a turbocharger.
Wastegate
A pneumatic or electronic valve that limits turbocharger boost pressure by bypassing exhaust gases.