flyrotary@lancaironline.net Mailing List Archive

Dean, Here's my take on it. For all six faces to go through their cycle requires 1080 deg of e shaft rotation. So if you have six faces (3 x 2 rotors) then each face requires 1080/6 = 180 degrees of e shaft rotation to complete its cycle. So two faces (one on each rotor) would complete their cycle (intake, compression, combustion, exhaust) in 360 deg of the e shaft rotation. I believe the EC2 fires all four injectors (assuming it has staged) once during that 360 deg rotation of the e eshaft providing sufficient fuel for the two faces (approx 2 x 40 cid = 80 cid) of ingested air/fuel mixture. But, Tracy is obviously the one who really knows {:>) Ed A Tracy, Ed, and Kelly I am not up to speed yet on the EC2, but aren't we really saying that injector pulsing is one time per rev per rotor ? And how would Mark Burton's constant speed controller react if the EC2 was switched to injector disable mode. Depending on how it was wired, it might suddenly sense zero power or 2X power. Just thinking out loud. Best Regards Dean Van Winkle RV-9A 13B ----- Original Message ----- From: "Kelly Troyer" <keltro@att.net> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net> Sent: Sunday, January 22, 2006 5:36 PM Subject: [FlyRotary] Re: Injector pulseing ? Tracy ? Tracy and Ed, Thanks for the info......I am talking to the producer of a constant speed prop controller for my "IVO" and he needed to know how many injector pulses per revolution.....Uses it as a signal for the power percentage function of his controller.... Like I need to duplicate one of my EM2 functions !! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message ---------------------- From: "Ed Anderson" <eanderson@carolina.rr.com> Hi Kelly, I've been over this with Tracy several times and the answer is always "ONE time per rev" {:>). The reason I ask the question is that for my EFI fuel monitor to give the right answer, I have to set a constant for the injectors flow rate that is twice the rate flow Mazda claims. But, if the injectors did pulse twice per rev then the stated injector flow rate would suffice. However, no matter how many times I ask Tracy, he stubbornly keeps insisting "only once per rev" {:>) Ed A ----- Original Message ----- From: Tracy Crook To: Rotary motors in aircraft Sent: Sunday, January 22, 2006 2:37 PM Subject: [FlyRotary] Re: Injector pulseing ? Tracy ? Easy one! No. Tracy ----- Original Message ----- From: Kelly Troyer To: Rotary motors in aircraft Sent: Sunday, January 22, 2006 12:57 PM Subject: [FlyRotary] Injector pulseing ? Tracy ? Tracy, Do I have this correct ? The EC2 batch fires the injectors therefore all the injectors (if above stageing MAP) pulse twice per eccentric shaft revolution.........Inquiring minds want to know !! Thanks -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/