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Yes it is emptying pressure down the exhaust, but it has to spin the turbine to leave. Then more exhaust leaves the engine and adds more pressure. I think we are at an impasse. I would love to hear why it is more efficient to spin a supercharger with a turbine than the crankshaft, but not more efficient to turn a generator (switched reluctance, which is a key part of the process from what the article said) with the exhaust than with the crankshaft. I also would like to know why a team of engineers think it will work but you can sit down with a calculator and dismiss the possibility with a few calculations. There must be some lousy engineers in Great Britain. Either that, or they know something you don't. I wonder which one it is?
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