Received-SPF: softfail
 receiver=logan.com; client-ip=171.71.176.117; envelope-from=echristley@nc.rr.com
Message-ID: <486507E7.4060406@nc.rr.com>
Date: Fri, 27 Jun 2008 11:31:51 -0400
From: Ernest Christley <echristley@nc.rr.com>
Reply-To: echristley@nc.rr.com
User-Agent: Thunderbird 2.0.0.12 (X11/20080227)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Lean of Peak operation.
References: <list-2993923@logan.com>
In-Reply-To: <list-2993923@logan.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit

Lynn Hanover wrote:
> Once you finish, you may have 6 different flow rates in 6 cylinders. Since
> the fuel delivery is based on airflow and a look at the itake system shows 6
> differing lengths of tubing, 6 different injectors seems like the right
> answere.
>
>   
...
> It should work just fine in a rotary, so long as fuel flow in both housings
> is about the same. The troubled engine feel is when one housing is
> performing less well than the other. So when leaning one housing has peaked
> before or after the other, or has reached well lean of peak before the
> other.
>   
It should be possible to imitate the same effect using computer 
control.  It would require that the computer control injectors 
individually, and that it has input from EGTs or a wideband O2 sensor 
for each rotor.  The concept is trivial...the implementation somewhat 
less so.