Date: Thu, 06 Nov 2003 09:07:59 -0500
From: echristley@nc.rr.com
Subject: Re: [FlyRotary] Re: DIE Summary
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Reply-to: echristley@nc.rr.com
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----- Original Message -----
From: Jim Sower <canarder@frontiernet.net>
> 
> The key of course (more better we call it "detail devil") is 
> coming up with a
> way to bias fuel injected through each the two injectors while 
> maintaining the
> sum of the quantities injected at that needed for proper 
> combustion.  That's one
> hell of a devil, but not nearly as difficult as the original 
> devising of a
> system that that figures out how much fuel to inject and then 
> delivers it.  I
> would guess at this point that it would be easier to adjust intake 
> Temperature than intake Length.  Tracy, you listening??
> 


This shouldn't be extremely difficult to incorporate into a injector contoller, assuming the processor has enough bandwidth.  In fact, a temp sensor in the intake could provide input to the controller which could use a lookup table to determine how to bias the injectors.  The ability to modify the lookup table would be all that's needed to make the injectors fit the intake.  

The biggest problem would be in selecting injectors.  On a very hot day, the computer might determine that all the fuel needed to come from the throttle body injectors.  And all from the port injectors on a blistering cold day.  If those injectors can't deliver enough fuel,  there goes max power, either from low fuel or missing EDDIE.  Either way, it may mean a sluggish plane when you're not expecting it.