X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2017443 for flyrotary@lancaironline.net; Mon, 30 Apr 2007 08:41:48 -0400 Received-SPF: none receiver=logan.com; client-ip=205.152.59.73; envelope-from=rusty@radrotary.com Received: from ibm69aec.bellsouth.net ([65.6.194.9]) by imf25aec.mail.bellsouth.net with ESMTP id <20070430124056.WHMB29377.imf25aec.mail.bellsouth.net@ibm69aec.bellsouth.net> for ; Mon, 30 Apr 2007 08:40:56 -0400 Received: from rd ([65.6.194.9]) by ibm69aec.bellsouth.net with ESMTP id <20070430124056.FABJ22940.ibm69aec.bellsouth.net@rd> for ; Mon, 30 Apr 2007 08:40:56 -0400 From: "Russell Duffy" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: oil coolers Date: Mon, 30 Apr 2007 07:40:57 -0500 Message-ID: <000201c78b24$cd030840$6e01a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C78AFA.E42D0040" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6822 Importance: Normal Thread-Index: AceK5jKi3Ra4D2+NTKC/EX4CnJCRlAAPWEDQ In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C78AFA.E42D0040 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit The new core mat. that I use for my coolers is just like oem mazda high pressure and same overall size. I can make them wider if need be. My question is there that much of an advantage in the oil/water over the oil/air cooler being that there is more lines to hook up with the oil/water system. Hi Ed, I've always liked the oil/water heat exchanger concept, but as you say, there's more to hook up. Along those lines, an idea that I've never seen fully tested is a water core inside the oil pan. The advantages would be that you don't need extra space for an oil cooler, and you have only one pressurized oil hose. The oil pickup tube is a bit of an obstacle, but with your welding talents, I'm sure you could work around this. I'm currently testing the same concept on the single rotor stand, but I'm using a Fluidyne exchanger rather than the oil pan. I really think it's going to work well, but it would be nice to eliminate the extra hoses by making this all in the oil pan. Cheers, Rusty (where the heck do all these Rotax parts go...) ------=_NextPart_000_0003_01C78AFA.E42D0040 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

      The new core mat. that = I use for=20 my coolers is just like oem mazda
high pressure and same overall = size. I can=20 make them wider if need be. My
question is there that much of an = advantage in=20 the  oil/water  over the
oil/air cooler being that there is = more=20 lines to hook up with the oil/water
system.

Hi Ed,

I've always liked the oil/water = heat=20 exchanger concept, but as you say, there's more to hook up.   = Along=20 those lines, an idea that I've never seen fully tested is a water core = inside=20 the oil pan.   The advantages would be that you don't need = extra space=20 for an oil cooler, and you have only one pressurized oil = hose.  =20 The oil pickup tube is a bit of an obstacle, but with your welding = talents,=20 I'm sure you could work around this. 
 
I'm currently testing the = same concept=20 on the single rotor stand, but I'm using a Fluidyne exchanger rather = than the=20 oil pan.  I really think it's going to work well, but it would = be nice=20 to eliminate the extra hoses by making this all in the oil=20 pan.  
 
Cheers,
Rusty (where the heck do = all these=20 Rotax parts go...)
  
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