Mailing List flyrotary@lancaironline.net Message #59746
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Fuel injector pulse frequency
Date: Sat, 20 Apr 2013 18:31:29 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Here is a photo of the front side of those two early fuel monitoring devices.   I had forgot that I had also added an air/fuel ratio indicator along with two sets of SEG 7 Led character modules (one for fuel flow and one for totalizer).  As you can see the digital system already provided the benefit, I could make it small enough to stick in a standard 2 1/4" instrument case
 
 
Ed

Sent: Saturday, April 20, 2013 3:58 PM
Subject: [FlyRotary] Fuel injector pulse frequency

All,

 

I'm looking at a DYI fuel totalizer for a 13B using the fuel injector activation signal. I can't find specifications that tell me the shape and frequency of the fuel injector pulse and the number of pulses at each point in the engine RPM cycle.  Can someone point me to an authoritative source for this info?

 

Thanks in advance for any leads.

 

Gordon C. Alling, Jr., PE

President

acumen Engineering/Analysis, Inc.

 

540-786-2200

www.acumen-ea.com

 

 

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