Return-Path: Received: from mtiwmhc12.worldnet.att.net ([204.127.131.116] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 568597 for flyrotary@lancaironline.net; Wed, 15 Dec 2004 11:50:53 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.116; envelope-from=keltro@att.net Received: from 204.127.135.75 ([204.127.135.75]) by worldnet.att.net (mtiwmhc12) with SMTP id <2004121516501111200lufb4e>; Wed, 15 Dec 2004 16:50:21 +0000 Received: from [209.247.222.93] by 204.127.135.75; Wed, 15 Dec 2004 16:50:10 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Oil Cooling/Pumping Date: Wed, 15 Dec 2004 16:50:10 +0000 Message-Id: <121520041650.3329.41C06B420005F75E00000D012160466648019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Oct 18 2004) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_3329_1103129410_0" --NextPart_Webmail_9m3u9jl4l_3329_1103129410_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Joe, Idea probably has merit but it adds another failure mode (electric pump I presume)......I would not want to use it for primary oil cooling but can see potential as a auxillary cooling system for part time use during those max power climbouts and / or hot weather use......IMHO -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Joe : -------------- > With all the problems encountered with leaking oil coolers, I was wondering > if the following has any merit. > > Instead of using the engine driven oil pump to circulate oil through the > cooler, why not install a secondary cooling loop. A seconary oil pick up > would be connected to an auxilary oil pump which would circulate the oil > through the cooler and return to the sump. The secondary loop could be run > with a lower pressure and larger hoses to maintain an adequate flow rate, > putting less internal force on the oil cooler. The normal engine > connections for the oil cooler would be directly connected to each other to > maintain oil flow in the engine. > > One downside might be the couple of extra pounds for the aux oil pump, but > that sounds like a small price to pay. I appreciate anyone thoughts or > comments. > > Joe (Still waiting for an engine mount.) --NextPart_Webmail_9m3u9jl4l_3329_1103129410_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Joe,

Idea probably has merit but it adds another failure mode (electric pump

I presume)......I would not want to use it for primary oil cooling but can

see potential as a auxillary cooling system for part time use during those

max power climbouts and / or hot weather use......IMHO

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from Joe <jewen@comporium.net>: --------------

> With all the problems encountered with leaking oil coolers, I was wondering
> if the following has any merit.
>
> Instead of using the engine driven oil pump to circulate oil through the
> cooler, why not install a secondary cooling loop. A seconary oil pick up
> would be connected to an auxilary oil pump which would circulate the oil
> through the cooler and return to the sump. The secondary loop could be run
> with a lower pressure and larger hoses to maintain an adequate flow rate,
> putting less internal force on the oil cooler. The normal engine
> connections for the oil cooler would be directly connected to each other to
> maintain oil flow in the engine.
>
> One downside might be the couple of extra pounds for the aux oil pump, but
> that sounds like a small price to pay. I appreciate anyone thoughts or
> comments.
>
> Joe (Still waiting for an engine mount.)

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