> > Yes the show runs for several weeks. I will definitely be there with
> > pen,
> > paper and camera in hand. I'll go twice if need be to speak with the
> > 'right'
> > guys.
> >
> > Everyone please get your list of questions ready.
> >
> > Hmmmmm ... just yesterday I decided that with a one half Lemans style
> > engine, injecting fuel after the P port closed would be counter
> > productive
> > as the compression ratio would decrease encountering the cavity the
> > injectors reside in.
> >
> > Perhaps I should have waited a day huh?:) It just goes to show that
the
> > more I study about the rotary engine the less I seem to know:(
> >
> > I have heard from sources over here that the engine will run on
> > gasoline or
> > hydrogen. I suspect but haven't confirmed, the engine is set up to
> > run on
> > E-85 as well. I would make sense. The engine in the picture appears
> > peppered with injectors. My guess is as follows. It looks like a
> > (green)
> > fuel injector on the left shooting into the side port, an oil injector
> > above that, two hydrogen injectors at 11:00 o'clock and the high
> > pressure
> > direct injector at 12:00 o'clock.
> >
> > With a small turbo this baby could clear 300Hp easily. Manifold may
not
> > clear the cowling though.
> >
> > Doug in Japan
> >
> > Doug you forgot one thing about direct injection. The hole can be very
> > small. The material truly injected after the port closing will make up
> > for any loss caused by the hole! A little interesting aside, when I
was
> > checking on the Orbital air assisted (semi) direct injection. They
> > mentioned that several sanctioning bodies wouldn't allow the Orbital
> > injection because they considered it a minor form of supercharging!
> > Bill Jepson
> >
> >
> Bill,
>
> That is interesting. I wonder why with the Leman why they didn't
angle the
> injectors straight into housings. They could have moved the slide
throttle
> much closer to the housing then.
>
> I could agree with you if we use the standard Mazda type of injector
> because they can be mounted very close to the inner wall and for all
> intensive purposes be flush and shoot through a sealed 2mm dia hole..
>
> In the last few days I have come across the ethanol compatible Multec
3.5
> injectors from Delphi. If you download the PDF you can see what
concerns me.
>
> http://tinyurl.com/yr7j2p
>
> There seems to be a depression about 4mm deep and 12mm in diameter. Even
> placing a donut spacer in the bottom of the hole would result in a
5mm by
> 4mm deep volume. Would two of them make a difference in lowering the
> compression?
>
> http://tinyurl.com/yr7j2p
>
> Doug in Japan
>
>
> That URL did not work Doug.
>
> Paul Lamar

take out the %20 and it will work
-- Blake C. Lewis

https://delphi.com/shared/pdf/ppd/pwrtrn/gas_multec_mpfi.pdf

Ok Doug, oh and thanks Blake,
Those are NOT intended for direct injection. They are MULTI-PORT injectors.
So your worries are a bit moot. Siemens is making a direct injector.
(Common-rail)
I'm sure Delphi has working examples if theirs isn't in cars already. Most
examples use a piezo injector. The set up is that the piezo actuator is so
fast that they use multiple cycles (between 3 and 5) per intake cycle.
For alcohol you might just be able to use an extra cycle.
Bill Jepson

You are missing something Bill. The 16B is not high pressure direct
injection.
It is low pressure direct injection if you will.
The pressure in the compression chamber at that point is way less than
what it
is in the combustion chamber.

Paul Lamar

Paul, if that is the case they may be using an assisted system like the
Orbital.
That is good to 4 bar max. The injectors shown as the ones Doug was talking
about still aren't for this type of injection, rather they are port
injection types.
Bill Jepson



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