This site  describes F1 direct injection scheme; looks like
stratified    charge with a pre ignition chamber. An injector in both
chambers.

<http://www.enginelabs.com/news/f1-tech-what-is-turbulent-jet-ignition/

 I neglected to report they claim  BSFC is 200g/KW/Hr with an F1 V6.

I translated that to be .33

Robert LeClercq

The  strange thing is that the rules only allow one injector per
cylinder .  I wonder how they get around  that.

Barry Bordes


Paul and Robert,

The Rotary Community has people working on TJI... just saying. See
attached, Barry Bordes

What are we looking at here Barry?

The wankel is trying to set a fire in a wind storm. They don't call
it a rotating combustion chamber for nothing :-)

IMHO the problem won't be solved until that is changed. They should
blow some air in the reverse direction.

One way to do that is have a double layer combustion chamber and use
the air flowing in the basement up, around and back to slow the air
flowing in the living room where the fire is :-)

If the ceiling is low enough in the basement the air  won't catch
fire in the basement due to flame quenching and the lack of fuel in
the basement air assuming direct injection in the living room.

The slot that allows the compressed air to enter the basement will
reduce the pressure that causes the squish flow in the living room in
the first place :-)

Pardon the analogy with a house on fire :-)

Paul Lamar




Paul,
While testing with my combustion pressure sensors I kept getting about 6 to 12 random preignition cycles on a 3000 to 8000 RPM pull. My thought was that it was from the exhaust reversion from the prior cycle.
I was afraid the early timing would cause detonation but it never did.... In
fact the burn rates were improved.
So now I am trying to seed the ignition with reversion gases.

I quoted earlier in our conversations about a Honda 2 stroke study where they made a reversion type ignition that would operate partially without its regular spark ignition.  They used it in their Dakar racer! It had a very good BSFC.

I am theorizing that it may even be better to use the trailing plug position for seeding the passing hurricane of mixture flow.
I will be using though The attached seeding apparatus in the leading plug position for the first experiments.
It has not run yet. I need a computer like the Motec to coordinate the system.
Barry Bordes

Barry, Take a look at a $60. Maximite. They are very very easy to program. You don't get the source
code with a Motec. I can help you get up to speed on the Maximite. It is
also much much cheaper than a Motec.  The Motec cost $1000's. The Maximites  are so cheap you can use one for
each rotor. That gives them more time to deal with things. You can use one for the ignition
and another for the fuel injection. Four total. I recommend using the wide band  O2 sensor
to control the mixture in a closed loop. They also function as recorders so you can look
at what the engine did on every run.

Paul Lamar

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