>     Looks like Turbo compound for diesel trucks
> is becoming off the
>      shelf.
>
>
>
http://www.voithturbo.de/vt_en_paa_road_motorenkomponente_turbocompound.htm
>
>      "TurboCompound
>      According to the European Exhaust Gas
> Norm Euro 5, from October
>      2009, the
>      borderline value for the emission of
> soot particles from heavy
>      commercial
>      vehicles will be set at 0.02 g/kWh.
> Nitric oxide emissions must not
>      exceed a
>      value of 2 g/kWh. It is assumed that
> from 2012, regulations will be
>      even
>      stricter with the introduction of Euro
> 6. Engine-related measures
>      aiming at
>      meeting this Euro 6 norm lead to
> increased fuel consumption. By
>      utilizing the
>      thermal energies occurring within the
> exhaust fumes, TurboCompound
>      systems help
>      to save up to 3 percent fuel.
> Consequently, CO2 emissions also drop.
>      Voith Turbo
>      supplies hydrodynamic couplings and pre-
> assembled systems for such
>      TurboCompound
>      systems."
>
>      The 3% is an under estimation. DD
> claims 5%. Voith is not making the
>      turbine
>      apparently.
>
>      Note the trade off between Nitric oxide
> emissions and fuel consumption.
>
>      Also I'll bet that particle filter adds
> back pressure.
>
>      Paul Lamar
>
>
> Here is a new picture of the DD15 turbine. This will give us a
> good clue
> of where to start when designing turbines for TC aircraft engines.
> Detroit Diesel spent 1.5 billion U.S. developing this engine so
> I am sure the
> turbine is some what optimized.
>
> Also a heat balance chart for a truck diesel engine from Catapillar.
>
>
> Paul Lamar


Hi Paul and group,

With all the research been done here.  You should get a grant from the
US gouverment.  Too bad I am not a US citizen.  I would write a letter
to the congress.

Thanks anyway for the time and efforts in the TC rotary engine :))

Marc Joseph