One idea is to design the exhaust expander into the 2 rotor housing on the 13B, giving us a one rotor with extra benefits. A design challenge I know. As a Dreamer, i was feeling left out!

           Steve Carlisle

           Please sign with your full name Steve.

           I think Rolls Royce tried it.

           Paul Lamar

       A few months back, Paul you spoke of a Radial Rotary Engine Copy, perhaps the Jugs in that Radial could use Exhaust Expander concept ???

       George F. Curtis Jr.

       I don't understand what you have in mind.

       Paul Lamar



   Paul, a few months back you spoke of using Mazda Rotary Engines two, three engines) to create the Jugs of a Radial Engines much like past engines i.e. Corsairs R-2800.  Suggesting a two Jug (Mazda Rotary) using Exhaust Expander concept when one engine is idle, it feeds its exhaust into the other Rotary Engine to recover work from expanding gases, and later starting up that second engine for higher HP output as needed. The exhaust gas would drive the second Jug if the term Jug is correct. Treat the second Rotary Engine as a Turbo Charger from the exhaust gas, recovering energy from the idle Jug.

   George F. Curtis Jr.

   That was just wild speculation. I am trying to focus on practical apps now. I suspect anything over 1000 HP will be done with turbo props.
   The TTC configuration hopefully will cut into that cat.

   Paul Lamar

Paul, "just wild expectation [speculation]" geez man, you're killing me. I thought i could bait you by putting out that wild idea. George is on the right track. I would like to set it up to work with Mazda rotors and housing, but that eccentric would have to be moved on the shaft, something like Paul's grub screw eccentric. Then a exhaust manifold from first rotor to second rotor, and the another exhaust port.

Steve Carlisle

Too much weight. All you need is a small gear box off the turbo charger shaft to
get the benefit of turbo compound.

Paul Lamar


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