12

    Hi Paul,

    I'm an engineering student who is also working at a start-up aerospace company. I
    would like to learn more about rotary engines. Please point me in the right direction.

    Thanks,
    Eric Rinell

    There are two clues to high deficiency of cars and prop driven aircraft,
    They are BSFC and engine power to weight ratio.
    The Wankel can  excel at both. We just set a prop driven aircraft world record on
    time to climb to 10,000 feet which largely depends on engine power to weight ratio.

    The world F1 road racing organization demands turbo compound which raises
    the over all efficiency of the piston engine from 35% to 50%. Turbo compound  can do even
    better with the Wankel.

    It is time for the world to pull their head out of their smart phones (asses) and
    recognize these facts.

    Paul Lamar



    Turbo-compounding has issues in real-world applications. Back around 2008, my customer launched an HD engine with turbo-compound. Customer a major international engine supplier with state-of-the-art engineering and development resources. I had a few test engines with the turbo compound, but didn't see it in the later MY engines.  Not sure why it was removed, but I suspect it reduced the efficiency of the after  treatment (emissions control) system.


Hakan Uras

I don't see how it could do that except perhaps lowering the temperature
of the exhaust gases. Detroit Diesel AKA Mercedes Bence
sold many  DD15 truck diesel turbo compound.

NOX reduction is still refused all over the world except in the USA.
Reducing NOX has a terrible affect on Diesel MPG and Germany refuses
to do it.  Diesel run wide open throttle full lean high NOX  all the time and the power is
controlled by how much fuel is injected until you get black smoke.


 I have been in many large cities around the world (35 countries) and I don't see anything like
the smog we had in LA back in the 60's.

I have never found any data that NOX, in typical atmospheric concentrations,  affects the health
of people. If you have some please upload it.

Paul Lamar

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