Quote:
Originally Posted by brufleth
Have they bothered making VG (variable geometry) turbos yet? Then schedule them to close at low power to keep it spinning and kick it open when there's throttle demand.
That's one method of managing transient power demand on jet engines. It would definitely work but it isn't trivial to build a reliable mechanical system and then to control it properly.
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Yes.
They use pivoting stator vanes in the turbine housing to vary both the cross-sectional area of the housing and the effective radius of the turbine wheel. The problem is that these vanes are fairly fragile and not particularly suited to the high EGTs of a gasoline engine. They are very common on diesel engines though.