X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao105.cox.net ([68.230.241.41] verified) by logan.com (CommuniGate Pro SMTP 5.3.11) with ESMTP id 4656078 for flyrotary@lancaironline.net; Mon, 27 Dec 2010 18:49:42 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.41; envelope-from=alventures@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao105.cox.net (InterMail vM.8.01.03.00 201-2260-125-20100507) with ESMTP id <20101227234908.EEAC14403.fed1rmmtao105.cox.net@fed1rmimpo03.cox.net> for ; Mon, 27 Dec 2010 18:49:08 -0500 Received: from BigAl ([72.199.216.14]) by fed1rmimpo03.cox.net with bizsmtp id oPox1f0090KDB3c04Pp8TM; Mon, 27 Dec 2010 18:49:08 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=nEJmMjsgzJU/SHHRi/ff9TR/+4hQZ6PdArDqWXwhaYs= c=1 sm=1 a=TPvrVRyicAsl4VeEYn0L5g==:17 a=9OWtqU4TLbtRdU844m4A:9 a=9TV7VGbwR7uC7nxR7zpbiXLw-pUA:4 a=CjuIK1q_8ugA:10 a=URz1SjvoxfomNQjvgyUA:9 a=YoHujz8D7PJEljlrltsA:7 a=hWHDXTRY2twslH1G1QH9VMaIqUYA:4 a=TPvrVRyicAsl4VeEYn0L5g==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: Fuel rail pressure Date: Mon, 27 Dec 2010 15:49:47 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01CBA5DD.B6F31310" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6863 Thread-Index: AcumECwdRIt3pkYLRECZEtMmb+GdLgAEBnUg In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5994 This is a multi-part message in MIME format. ------=_NextPart_000_0011_01CBA5DD.B6F31310 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Also remember that when you are starting the engine you are starting it under a load. This is different then in a car config where in a car you = are starting it with no load attached to the crankshaft. If the fuel rails = are getting so hot that they are vaporizing I would think this would cause = an excess pressure in the fuel system and be very dangerous. This is not a problem I have ever had in a car. What is causing this besides poor ventilation? The pressure in the fuel rail can never exceed the setting of the = pressure regulator; which should bear about 40 psi engine off. That's true even = if you call the e-shaft a crankshaft:-). Al =20 ------=_NextPart_000_0011_01CBA5DD.B6F31310 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Also remember that when you are starting the engine you are starting it under = a load.  This is different then in a car config where in a car you = are starting it with no load attached to the crankshaft.  If the fuel = rails are getting so hot that they are vaporizing I would think this would = cause an excess pressure in the fuel system and be very dangerous.  This is = not a problem I have ever had in a car.  What is causing this besides = poor ventilation?

The pressure in the fuel rail can never exceed the setting of the pressure regulator; = which should bear about 40 psi engine off. That’s true even if you call the = e-shaft a crankshaftJ.

Al

 

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