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Yes, Ed has it correct. I would add that the injection is not batch
fired but is port, i.e., the injection pulse is timed to coincide with the
intake stroke of the rotor it is feeding.
Tracy
----- Original Message -----
Sent: Sunday, January 22, 2006 11:46
PM
Subject: [FlyRotary] Re: Injector
pulseing ? Tracy ?
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
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>
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