Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Sun, 01 Dec 2002 02:04:29 -0500 Message-ID: X-Original-Return-Path: Received: from cpimssmtpu04.email.msn.com ([207.46.181.80] verified) by logan.com (CommuniGate Pro SMTP 4.0.2) with ESMTP id 1891790 for flyrotary@lancaironline.net; Sat, 30 Nov 2002 17:44:38 -0500 Received: from BigAl ([68.7.218.110]) by cpimssmtpu04.email.msn.com with Microsoft SMTPSVC(5.0.2195.4905); Sat, 30 Nov 2002 14:44:32 -0800 X-Original-Message-ID: <015801c298c2$121468c0$6400a8c0@BigAl> From: "Al Gietzen" X-Original-To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Coolant loss : More cooling system test stuff. X-Original-Date: Sat, 30 Nov 2002 14:44:40 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0155_01C2987F.038A9EC0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2720.3000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Original-Return-Path: alventures@email.msn.com X-OriginalArrivalTime: 30 Nov 2002 22:44:33.0066 (UTC) FILETIME=[0D19B0A0:01C298C2] This is a multi-part message in MIME format. ------=_NextPart_000_0155_01C2987F.038A9EC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Another factor that affects the coolant volume is the expansion of the = metal in the engine. The coolant is essentially contained in an annular = region around the rotors. The inside of that annulus gets pretty hot. = Could be that the coolant capacity in the engine is decreased. =20 I have no idea how big a factor this is, but it seems that that overall = coolant "expansion" is more in a rotary. I'd estimate that the amount = of coolant that gets pushed into the catch bottle on the V-8 in my van = is a pint or less. Al .Tracy and others, what is the theory behind so much liquid in the = external expansion tank? Thermal expansion of the initial coolant volume = doesn't account for such a large overflow. So is vapor building up inside? If = it is there is no longer a liquid filled system. I don't get it. Peter >> Homepage: http://www.flyrotary.com/ ------=_NextPart_000_0155_01C2987F.038A9EC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Another factor that affects the coolant volume = is the=20 expansion of the metal in the engine.  The coolant is essentially = contained=20 in an annular region around the rotors.  The inside of that annulus = gets=20 pretty hot.  Could be that the coolant capacity in the engine = is=20 decreased. 
 
I have no idea how big a factor this is, but = it seems=20 that that overall coolant "expansion" is more in a rotary.  I'd = estimate=20 that the amount of coolant that gets pushed into the catch bottle on the = V-8 in=20 my van is a pint or less.
 
Al

.Tracy=20 and others, what is the theory behind so much liquid in the=20 external
expansion tank? Thermal expansion of the initial coolant = volume=20 doesn't
account for such a large overflow. So is vapor building up = inside?=20 If it is
there is no longer a liquid filled system. I don't get=20 it.
Peter


>>  Homepage:  http://www.flyrotary.com/

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