Mailing List flyrotary@lancaironline.net Message #30176
From: rijakits <rijakits@cwpanama.net>
Subject: Re: [FlyRotary] Re: Diesel Operation
Date: Mon, 13 Feb 2006 19:25:32 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

----- Original Message ----- From: "Bob White" <rlwhite@comcast.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, February 13, 2006 7:15 PM
Subject: [FlyRotary] Re: Diesel Operation


On Mon, 13 Feb 2006 19:00:52 -0500
"rijakits" <rijakits@cwpanama.net> wrote:

> >
> > > Bob White wrote:
> > >
> > > >Does anyone have an inkling of what one would have to do to get a
13B
> > > >to run on diesel?
> > > >
> > > >Bob W.
> > > >
> > > Fill in the depression in the rotors to drive the compression ratio
up?
> > > Turbo (to drive the compression up)?
> > > Add a propane charge for good measure?
> > >
>
> On "the other list" there was one gentleman working on the details for a
> Jet-A conversion - I think he was looking into some outborder
fuel-injection
> system, that runs already direct-injection.
> The idea is not to increase compression to the point of
"Diesel"-ignition
> (Compression ignition), but use direct-injection and spark-ignition to
run
> the motor.
> This way you can use the cheaper and more powerful Jet-A, but the engine
is
> still not a real Diesel-cycle engine.
> The problem is of course the low temperature needed to ignite Diesel,
which
> makes the engine "diesel" (pre-ignite) - I think Mistral got to around
85 hp
> before it started to "diesel".
> Solution: Start a spark-shower before you direct-inject Jet-A.
> Problem: How do you evaporate or at least fine-distribute the Jet-A
enough
> to burn clean and efficient? Air-injection around the fuel-injector!!
>
> I really hope Mistral will make their Jet-A system available seperately
as
> they do wit hsome other parts....
> ...or the gentleman from the "PL"-domaine get's it right! I think it was
> Bill Jepeson, or so.....
>
> Thomas J.

Hi Thomas,

Now that you mention it, I think I remember hearing that someone was
working on it.  Like my engine install, it takes a long time for these
developments to come to fruition.

Bob W.


Especially on a budget!!

If you have the spare, it is easiest to wait for Mistrals Jet-A version,
certified and all and you're in Rotary heaven!

I hope someone finds the right combination of affordable parts to make it
work for "you and me!"

TJ

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