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Turbocharger Diagram – Basic Turbocharger Workings

Turbocharger Diagram – Basic Working Functions

A turbocharger’s function is to increase engine power.
It does this by forcing extra air into the induction system.
And extra air is pushed in, when it is compressed by the impeller (compressor) wheel.
From here, the compressed air is sent (usually via an inter cooler) into the engine.

The inter-cooler’s function is to cool the compressed (and heated) air before it enters the combustion chamber.
Cooler air is more dense and aides in the forcing of extra air into the engine, creating more power.
And the compressor wheel is spun by the exhaust exiting the engine via the manifold.
That exhaled exhaust, spins a turbine and shaft connected to the compressor wheel.
This is why there is spool-up ‘lag’ with turbochargers (unlike superchargers), as the turbine has to spin first.
Then the compressed air must also build up to the required / set pressure.
The build up (spool) and release of pressure (dump), are regulated by turbocharger parts.
These parts are called pneumatically actuated waste-gates or Electronic Stepper Motors.

But regardless of whether its a petrol or turbocharged diesel engine, they work the same.

CHRA Diagram

And the below Turbocharger Diagram Schematic provides a very basic idea of Turbochargers workings.
It represents the turbocharger parts common to all types of turbochargers. This is called the CHRA (Center Hub Rotating Assembly).

turbocharger-diagram-parts-function-chra-inducer-exducer

You will notice on the Turbocharger Diagram the terms Inducer and Exducer.
And they are swapped on either side of the central housing.
This is an important distinction when you are sizing up a generic or universal turbocharger for a specific or performance application.

And if you are looking for aftermarket Turbochargers for sale, we have a great selection.
We stock for all the most common Australian turbocharged vehicles, especially diesels.
And our pricing is very affordable, even for our premium range of Stage 1 High Flow Billet Impeller Upgrade Turbochargers.

But if you have any other questions about replacement turbochargers for your vehicle, please feel free to contact our sales support line: 0490 059 316.

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Aftermarket Replacements.
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We supply aftermarket turbochargers to replace:

Honeywell Garrett, BorgWarner (KKK),
IHI, Toyota, Hitachi....and lots more
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