George Lendich wrote:


Bill J,
I have an answer from Ken Johnsen of Orbital Engines.
There is no specific unit developed for Rotaries but they have had many requests for one.
They only do development work for clients, they don't manufacture the units themselves.
Yes Mercury is one of their clients so too is English and Israeli military,
They have developed units for 200 hp using one injector (petrol) - no problem with idle.

Ken feels an aftermarket ECU would/could run the DI - certainly Tracy could easily develop one ( just another development project).

Ken mentioned placement and injector nozzle shrouding ( because of the rotary apex seal) as being development issues.

Ken is sending some info I will pass on.

OH he also asked if I knew of anyone supplying good quality cheap
ECU for his own personal project - it would seem the $150,000 development costs and expensive ECU $4,000 is a little steep for his pocket as well.
I told him Tracy might do it, but he needs a O2 sensor.

BTW they have developed kero burning( Jet A) DI and ECU for some of their clients - no problem. Has anyone got access to the British and Israeli military?
George (own under)

George -

Let's not forget that there are Open Source fuel injection systems out
there.  I only have experience with one: MegaSquirt.  Here's some links:
        http://www.bgsoflex.com/megasquirt.html
        http://www.megasquirt.info/

There are also Open Source Ignition systems out there as well.

Open source in this case doesn't mean linux, but rathe r... OPEN
SOURCE.  The designs, microcontroller code, circuits, etc. are all
published and peer reviewed by people around the world - many with LOTS
of insight and knowledge.

While I wouldn't use one in my aircraft as a sole source of fuel control
(Tracy's is tried, true, and inexpensive), I certainly plan to use it in
my off-road truck, and gain better understanding (and control) of fuel
injection.  (Carburetors don't work well at extreme off-road angles.)

I believe personal projects are a natural fit for Open Source.

Enjoy.

--
Thanks,
-Vince Orton

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