TURBOCHARGERS

Turbocharging

Turbochargers

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Turbochargers are designed to last as long as the engine in a properly maintained vehicle. It does not require any special servicing but the following engine manufacturer’s service instructions must be strictly followed to ensure good performance.
  • Oil and oil filter change intervals
  • Oil pressure control
  • Air filter system maintenance

What causes turbochargers to fail?

The majority of all turbocharger failures are due to the following causes:
  • Foreign bodies entering into the turbine or the compressor
  • Dirty oil
  • Inadequate oil supply
  • High exhaust gas temperatures

Turbocharger Failures

Before replacing the turbocharger a correct diagnosis needs to be made as to why it failed.
As the turbocharger components are manufactured on high-precision machines to close tolerances and the wheels rotate up to 300,000 rpm, turbochargers should only be assessed by qualified specialists.


How Turbocharging Works

A turbocharger uses an engine’s exhaust gas to drive a turbine wheel at speeds up to 280,000rpm. The turbine wheel is connected by a shaft to a compressor wheel and the two wheels turn together to suck in and compress large amounts of ambient air. This air is very dense and very hot, so it is passes through a charge-air cooler, where it cools and gains even higher density before entering the engine. The presence of this compressed air makes the fuel burn more efficiently, thereby delivering greater power while consuming less energy.
Increasingly, turbos are coupled with high pressure fuel injection systems, a combination that makes for even more thorough, efficient and cleaner combustion.

How turbocharging works
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