Return-Path: Received: from sire.mail.pas.earthlink.net ([207.217.120.182] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 617830 for flyrotary@lancaironline.net; Sat, 22 Jan 2005 18:27:24 -0500 Received-SPF: none receiver=logan.com; client-ip=207.217.120.182; envelope-from=j-winddesigns@thegrid.net Received: from sdn-ap-017ilchicp0487.dialsprint.net ([65.176.169.233] helo=thegrid.net) by sire.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 1CsUeb-0001R7-00 for flyrotary@lancaironline.net; Sat, 22 Jan 2005 15:26:53 -0800 Date: Sat, 22 Jan 2005 18:27:42 -0500 Subject: Re: [FlyRotary] Re: Pport/cold side injectors Content-Type: text/plain; charset=ISO-8859-1; format=flowed Mime-Version: 1.0 (Apple Message framework v552) From: Jerry Hey To: "Rotary motors in aircraft" Content-Transfer-Encoding: quoted-printable In-Reply-To: Message-Id: <36ECE61A-6CCD-11D9-ADA0-0003931B0C7A@thegrid.net> X-Mailer: Apple Mail (2.552) Bill, I have had a day to think about this and suddenly the sun is=20 shining again. I can route hot air from the cool tube over the intake=20= at the sweep. Not only can I respond to icing conditions but with a=20 temp prob on the runner, it may be possible to control the runner temp=20= so as to just pre-heat the mix a bit for better combustion. It will be=20= fun to fine tune with this feature when cruising along with nothing=20 else to do. jerry On Friday, January 21, 2005, at 01:04 PM, WRJJRS@aol.com wrote: > Jerry, > In a recent posting "over there" Francois at Mistral did mention the=20= > one item I feared as a problem. Upstrream injecting can cause icing=20 > inside the runner. They claimed to have experienced this. Since you=20 > are passing a fuel air mixture through the tube you can experience the=20= > same difficulty as a carburator, though for different reasons. > Bill Jepson > > In a message dated 1/21/2005 9:47:37 AM Eastern Standard Time, "Ed=20 > Anderson" writes: > >> Jerry, I don't really know if anyone has run/flow with Paul L's=20 >> crossover >> intake. =A0However, if they are not turbocharged they are not likely = to=20 >> be >> experiencing any detonation - just perhaps some uneven running - if,=20= >> indeed >> any problem associated with distillation exists. >> >> Ed A >> . >> ----- Original Message ----- >> From: "Jerry Hey" >> To: "Rotary motors in aircraft" >> Sent: Friday, January 21, 2005 9:24 AM >> Subject: [FlyRotary] Re: Pport/cold side injectors >> >> >>> Ed, =A0is anybody running an engine with Paul L's crossover intake? = =A0=20 >>> If >>> distilation is an issue, they would have experienced it too, >>> presumably. =A0Jerry >>> >>> >>> On Friday, January 21, 2005, at 09:12 =A0AM, Ed Anderson wrote: >>> >>>> The Swiss Mistral rotary folks reported that when they went to long >>>> runners >>>> that they believed they encountered =A0a "distillation" problem as=20= >>>> Ernest >>>> mentioned. =A0Due to this problem they believed that they encounter >>>> detonation >>>> with their turbo set up due to the "Low Octane" part being ingested=20= >>>> at >>>> a >>>> different time than the lighter high octane part of the fuel. =A0I = am >>>> certainly not enough of a chemist to even know if this even sounds >>>> plausible. =A0However, the team did have a Chemist and that is what = he >>>> reported. >>>> >>>> I must admit I'm a little bit skeptical of this mode as it would=20 >>>> seem >>>> that >>>> even if it happened you would have a continuos stream of light and >>>> heavy >>>> elements intermixing between one injection period and the next.=20 >>>> =A0But, >>>> they >>>> certainly had the resources and inclination to look into the = problem >>>> and >>>> that was their conclusion. >>>> >>>> Ed A >>>> >>>> >>>> ----- Original Message ----- >>>> From: "Ernest Christley" >>>> To: "Rotary motors in aircraft" >>>> Sent: Friday, January 21, 2005 8:48 AM >>>> Subject: [FlyRotary] Re: Pport/cold side injectors >>>> >>>> >>>>> On Thu, 2005-01-20 at 20:41, Jerry Hey wrote: >>>>>> Thanks Ken, =A0 I want to try to make cold side fuel injection=20 >>>>>> =A0work. >>>>>> Idon't see any reason, YET, =A0that would indicate the system = would >>>>>> notwork. =A0But if it does not work, then I will COPY =A0your set = up. >>>>>> >>>>>> I have seen carburetor intakes on P Ports with about =A0a =A012 = inch >>>>>> runner made from a 90 degree sweep. =A0 They were turning out = =A0huge >>>>>> power. =A0 =A0Jerry >>>>>> >>>>> >>>>> Check the FlyRotary archives. =A0There was some discussion of long >>>>> runners >>>>> a while back. =A0I forget who it was, but they found that the fuel=20= >>>>> will >>>>> 'distill' in the runners. =A0The lighter compounds get sucked out = and >>>>> ingested immediately. =A0The heavier parts fall behind and get = taken=20 >>>>> in >>>>> as >>>>> clumps. =A0The end result was that the engine wasn't breathing a = nice >>>>> even >>>>> mixture, but a uneven combination of light petroleum gasses and=20 >>>>> balls >>>>> of >>>>> oil. >>>>> >>>>> At least that is how I understood it all. >>>>> >>>>> >>>>> >>>>>>> =A0Homepage: =A0http://www.flyrotary.com/ >>>>>>> =A0Archive: =A0 = http://lancaironline.net/lists/flyrotary/List.html >>>>> >>>> >>>> >>>> >>>>>> =A0Homepage: =A0http://www.flyrotary.com/ >>>>>> =A0Archive: =A0 = http://lancaironline.net/lists/flyrotary/List.html >>>> >>> >>> >>>>> =A0Homepage: =A0http://www.flyrotary.com/ >>>>> =A0Archive: =A0 http://lancaironline.net/lists/flyrotary/List.html >> >> >> >>>> =A0Homepage: =A0http://www.flyrotary.com/ >>>> =A0Archive: =A0 http://lancaironline.net/lists/flyrotary/List.html >> > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html >