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Location:
Sydney
Registered:
July 2002
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Compound turbo
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Tue, 15 July 2003 07:12
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Does anyone have any info on "compound turbo"s? Not one turbo blowing into another, but a turbo with a belt driven supercharger on the front of it.
I think a lot of war planes used to have them. I know they also used to have a lot of twin-charged systems with a turbo blowing through a supercharger then into the inlet.
Can anyone tell me why they aren't done? If you could have a belt driven and exhaust driven turbo, then you could make the belt driven part give a lot of boost low down (a lot of gearing) and the turbo part to give a lot of boost at the top end (big exhaust turbine).
As for disengaging the supercharger as the boost rises from the turbo, it could be left on and produce positive energy directly onto the belt as well as pushing through more air.
I understand its a pipe dream, but surely someone has played around with the idea, and has some pics and info on the web.
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