X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.90] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.7f) with ESMTP id 950257 for flyrotary@lancaironline.net; Mon, 23 Jan 2006 07:59:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.90; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 23 Jan 2006 04:58:57 -0800 Message-ID: Received: from 4.171.129.151 by BAY115-DAV18.phx.gbl with DAV; Mon, 23 Jan 2006 12:58:56 +0000 X-Originating-IP: [4.171.129.151] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Injector pulseing ? Tracy ? Date: Mon, 23 Jan 2006 07:58:53 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0050_01C61FF2.DAB43E30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 23 Jan 2006 07:58:53 -0500 X-OriginalArrivalTime: 23 Jan 2006 12:58:57.0116 (UTC) FILETIME=[C57DB1C0:01C6201C] This is a multi-part message in MIME format. ------=_NextPart_000_0050_01C61FF2.DAB43E30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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=20 ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 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=20 1080 deg of e shaft rotation. So if you have six faces (3 x 2 rotors) = then=20 each face requires 1080/6 =3D 180 degrees of e shaft rotation to = complete its=20 cycle. So two faces (one on each rotor) would complete their cycle = (intake,=20 compression, combustion, exhaust) in 360 deg of the e shaft rotation. I believe the EC2 fires all four injectors (assuming it has staged) = once=20 during that 360 deg rotation of the e eshaft providing sufficient fuel = for=20 the two faces (approx 2 x 40 cid =3D 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=20 > 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=20 > injector disable mode. Depending on how it was wired, it might = suddenly=20 > sense zero power or 2X power. Just thinking out loud. > > Best Regards > Dean Van Winkle RV-9A 13B > > ----- Original Message -----=20 > From: "Kelly Troyer" > > To: "Rotary motors in aircraft" = > > 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" = > >>> Hi Kelly, >>> >>> I've been over this with Tracy several times and the answer is = always=20 >>> "ONE time >>> per rev" {:>). The reason I ask the question is that for my EFI = fuel=20 >>> monitor to >>> give the right answer, I have to set a constant for the injectors = flow=20 >>> rate that >>> is twice the rate flow Mazda claims. But, if the injectors did = pulse=20 >>> twice per >>> rev then the stated injector flow rate would suffice. >>> >>> However, no matter how many times I ask Tracy, he stubbornly = keeps=20 >>> insisting >>> "only once per rev" {:>) >>> >>> Ed A >>> ----- Original Message -----=20 >>> 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 -----=20 >>> 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=20 >>> 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/ >=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_0050_01C61FF2.DAB43E30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, Ed has it correct.  I would add that the injection is not = batch=20 fired but is port,  i.e., the injection pulse is timed to coincide = with the=20 intake stroke of the rotor it is feeding.
 
Tracy
----- Original Message -----
From: Ed Anderson
To: Rotary motors in = aircraft
Sent: Sunday, January 22, 2006 = 11:46=20 PM
Subject: [FlyRotary] Re: = Injector=20 pulseing ? Tracy ?


Dean,

Here's my take on it.   For = all six=20 faces to go through their cycle requires
1080 deg of e shaft=20 rotation.  So if you have six faces (3 x 2 rotors) then
each = face=20 requires 1080/6 =3D 180 degrees of e shaft rotation to complete its=20
cycle.  So two faces (one on each rotor) would complete their = cycle=20 (intake,
compression, combustion, exhaust) in 360 deg of the e = shaft=20 rotation.

I believe the EC2 fires all four injectors (assuming = it has=20 staged) once
during that 360 deg rotation of the e eshaft = providing=20 sufficient fuel for
the two faces (approx 2 x 40 cid =3D 80 cid) = of ingested=20 air/fuel mixture.

But, Tracy is obviously the one who really = knows=20 {:>)

Ed A




> Tracy, Ed, and=20 Kelly
>
> I am not up to speed yet on the EC2, but aren't = we=20 really saying that
> injector pulsing is one time per rev per = rotor=20 ?  And how would Mark
> Burton's constant speed controller = react=20 if the EC2 was switched to
> injector disable mode.  = Depending on=20 how it was wired, it might suddenly
> sense zero power or 2X=20 power.  Just thinking out loud.
>
> Best = Regards
> Dean=20 Van Winkle    RV-9A  13B
>
> ----- = Original=20 Message -----
> From: "Kelly Troyer" <keltro@att.net>
> To: = "Rotary motors=20 in aircraft" <flyrotary@lancaironline.net>
>=20 Sent: Sunday, January 22, 2006 5:36 PM
> Subject: [FlyRotary] = Re:=20 Injector pulseing ? Tracy ?
>
>
>> Tracy and=20 Ed,
>>    Thanks for the info......I am = talking to the=20 producer of a
>> constant speed prop controller for my "IVO" = and he=20 needed to
>> know how many injector pulses per = revolution.....Uses it=20 as a
>> signal for the power percentage function of his=20 controller....
>> Like I need to duplicate one of my EM2 = functions=20 !!
>>
>> --
>> Kelly Troyer
>> = Dyke=20 = Delta/13B/RD1C/EC2
>>
>>
>>
>>
>= ;>
>>=20 -------------- Original message ----------------------
>> = From: "Ed=20 Anderson" <eanderson@carolina.rr.com&g= t;
>>>=20 Hi Kelly,
>>>
>>> I've been over this with = Tracy=20 several times and the answer is always
>>> "ONE =20 time
>>> per rev" {:>).  The reason I ask the = question is=20 that for my EFI fuel
>>> monitor to
>>> give = the=20 right answer, I have to set a constant for the injectors flow =
>>>=20 rate that
>>> is twice the rate flow Mazda claims.  = But, if=20 the injectors did pulse
>>> twice per
>>> rev = then=20 the stated injector flow rate would = suffice.
>>>
>>>=20 However, no matter how many times I ask Tracy,  he stubbornly = keeps=20
>>> insisting
>>> "only once per rev"=20 {:>)
>>>
>>> Ed = A
>>>   -----=20 Original Message -----
>>>   From: Tracy=20 Crook
>>>   To: Rotary motors in=20 aircraft
>>>   Sent: Sunday, January 22, 2006 = 2:37=20 PM
>>>   Subject: [FlyRotary] Re: Injector = pulseing ?=20 Tracy ?
>>>
>>>
>>>   = Easy=20 one!  No.
>>>
>>>  =20 Tracy
>>>     ----- Original Message = -----=20
>>>     From: Kelly=20 Troyer
>>>     To: Rotary motors in=20 aircraft
>>>     Sent: Sunday, January = 22,=20 2006 12:57 PM
>>>     Subject: = [FlyRotary]=20 Injector pulseing ? Tracy=20 = ?
>>>
>>>
>>>    = =20 Tracy,
>>>         = Do I=20 have this correct ? The EC2 batch fires the injectors
>>> = therefore all
>>> the injectors (if=20 above
>>>     stageing MAP) pulse = twice per=20 eccentric shaft
>>> = revolution.........Inquiring
>>>=20 minds want to know=20 = !!
>>>
>>>
>>>    = ;=20 Thanks
>>>    =20 --
>>>     Kelly=20 Troyer
>>>     Dyke=20 Delta/13B/RD1C/EC2
>>
>> --
>> = Homepage:  http://www.flyrotary.com/
>&= gt;=20 Archive and UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
>>
>
>
>=20 --
> Homepage:  http://www.flyrotary.com/
> = Archive=20 and UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
>=20



--
Homepage:  http://www.flyrotary.com/
Archi= ve and=20 UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
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