X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5109008 for flyrotary@lancaironline.net; Tue, 30 Aug 2011 23:13:49 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=4MSDN839FDsgJpwQlr+eLEnlTy8eaQTddc4+Fk+GTfI= c=1 sm=0 a=oCrJv3FcLI0A:10 a=SC71y0a/4S6V9vjVxUojGA==:17 a=3oc9M9_CAAAA:8 a=HZJGGiqLAAAA:8 a=Ia-xEzejAAAA:8 a=V0sYiUSkAAAA:8 a=xp4W4Il_Ml_KphDVpBYA:9 a=XKwsPb1Du0U6UM9jPh4A:7 a=wPNLvfGTeEIA:10 a=XptUGg1y60QA:10 a=U8Ie8EnqySEA:10 a=HeoGohOdMD0A:10 a=EzXvWhQp4_cA:10 a=fLuM78UsAAAA:8 a=aNhQQ6NotnZ5PRqrY2oA:9 a=xq4spRvBYRQNLT633iUA:7 a=tXsnliwV7b4A:10 a=SC71y0a/4S6V9vjVxUojGA==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.175.135 Received: from [174.110.175.135] ([174.110.175.135:55608] helo=EdPC) by cdptpa-oedge03.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 94/5E-28959-BC6AD5E4; Wed, 31 Aug 2011 03:13:15 +0000 Message-ID: From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: CG Products Intake Manifold Date: Tue, 30 Aug 2011 23:11:03 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0029_01CC676A.17288EB0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0029_01CC676A.17288EB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Whereas I do T my fuel lines prior to feeding my two pumps and their = individual filters, I "T" (actually I use a "Y") them back together and = run a single line to the injectors, with primary injectors first, then = secondary injectors and then to my pressure regulator. Since the = pressure regulator is almost always returning fuel (to the tank/header = tank) to maintain pressure (except perhaps at WOT), that assures some = fresh fuel always flowing through the line. If the pressure regulator is place before the injectors then there is = less fresh fuel flowing through the rails. =20 Just my $0.20 Ed From: CozyGirrrl@aol.com=20 Sent: Tuesday, August 30, 2011 9:36 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: CG Products Intake Manifold From: Ernest Christley =20 Subject: Re: [FlyRotary] Re: CG Products Intake = Manifold=20 Date: Fri, 05 Aug 2011 09:42:36 -0400=20 To: Rotary motors in aircraft = =20 =20 =20 =20 Ed Anderson wrote: Nice clean design! =20 However, I am a bit curious about the fuel connection the two = secondary injectors - looks like it would have to be a "hose" type fuel = feed or a custom fuel rail design to accommodate those angles. =20 That was my thought, exactly. But then I noticed the screw holes = on each side of the injectors. Is there an attachment adapter that = isn't shown?=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Thanks for the kudos Ed =3D) Yes the secondary injectors have retainers and floating caps on top into = which Swagelock T's are installed so that hard stainless lines are daisy = chained through. Once I figure out how to attach a picture I will take = one and do so. This portion of the manifold is now complete to the = silicone couplers and now needs joining to the rest of the fuel system = via the primary fuel rail block.=20 This is where we ask a few questions: 1. are pulse dampers still used on the input to the primary fuel rail? 2. what is the best pressure regulator available? 3. we have seen diagrams where the fuel goes to a T then separately to = the primaries and secondaries then back together at another T to enter = the regulator. We are not leaning this way due to concerns about vapor = lock; T'ing the lines reduces flow through each branch by 50%. Chrissi & Randi www.CozyGirrrl.com CG Products ------=_NextPart_000_0029_01CC676A.17288EB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Whereas I do T my fuel lines prior to feeding my two = pumps and=20 their individual filters, I "T" (actually I use a "Y") them back = together and=20 run a single line to the injectors,  with primary injectors first, = then=20 secondary injectors  and then to my pressure regulator.  Since = the=20 pressure regulator is almost always returning fuel (to the tank/header = tank)=20  to maintain pressure (except perhaps at WOT), that assures some = fresh fuel=20 always flowing through the line.
 
  If the pressure regulator is place before the = injectors=20 then there is less fresh fuel flowing through the rails.  =
 
Just my $0.20
 
Ed

Sent: Tuesday, August 30, 2011 9:36 PM
Subject: [FlyRotary] Re: CG Products Intake=20 Manifold

From: Ernest Christley <echristley@att.net>Subject: Re: [FlyRotary] Re: CG Products = Intake=20 ManifoldDate: Fri, 05 Aug 2011 09:42:36 = -0400To: Rotary motors in aircraft <flyrotary@lancaironline.net>


<= /TD> Ed Anderson wrote:
Nice clean=20 design!
 
However, I am a bit curious about the fuel=20 connection the two secondary injectors - looks like it would = have to be=20 a "hose" type fuel feed or a custom fuel rail design to = accommodate=20 those angles.
 


That was my = thought,=20 exactly.  But then I noticed the screw holes on each side of = the=20 injectors.  Is there an attachment adapter that isn't=20 shown?
 
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Thanks for the kudos Ed =3D)
Yes the secondary injectors have retainers and floating caps on top = into=20 which Swagelock T's are installed so that hard stainless lines are daisy = chained=20 through. Once I figure out how to attach a picture I will take one and = do so.=20 This portion of the manifold is now complete to the silicone couplers = and now=20 needs joining to the rest of the fuel system via the primary fuel rail = block.=20
 
This is where we ask a few questions:
1. are pulse dampers still used on the input to the primary fuel=20 rail?
2. what is the best pressure regulator available?
3. we have seen diagrams where the fuel goes to a T then separately = to the=20 primaries and secondaries then back together at another T to enter the=20 regulator. We are not leaning this way due to concerns about vapor lock; = T'ing=20 the lines reduces flow through each branch by 50%.
 
Chrissi & Randi
CG Products
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