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Location:
Sydney
Registered:
July 2002
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Re: Compound turbo
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Wed, 16 July 2003 07:12
 
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| gold28 wrote on Wed, 16 July 2003 13:28 |
As far as I know, there was never a compound charger fitted to an aircraft engine and I can't see why it would be needed. Sure some engines are fitted with turbo or super chargers but not both.
Aircraft forced induction has a different goal than automotive ones. In cars, they are used to increase power. In aircraft, they are used to maintain a particular power level at different altitudes. Lag is not a consideration as they are generally run a constant RPM.
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http://rwebs.net/avhistory/opsman/geturbo/geturbo. htm
about halfway down is a great diagram
http://www.enginehistory.org/installations.htm
more good diagrams on this one
http://www.wpafb.af.mil/museum/engines/eng68.htm
nice airplane engine image on this one.
There are a heap of others. Thats where the compound turbos (one blowing into another) first came about - in aircraft. Which is also the same place that superchargers were born, and maybe turbos as well (not sure on turbos).
Norbie: If the RC cars can take 2hp through a 3 speed transmission that is less than an inch long, surely it can be scalable.
Electrically assisted turbos is still on my idea of a combined turbo supercharger. The rest of the ideas are still stuck on the twin-charger idea.
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