X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.3c3) with ESMTP id 4027735 for flyrotary@lancaironline.net; Fri, 18 Dec 2009 11:32:59 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.0 c=1 a=3y8vsL2qxYMA:10 a=ayC55rCoAAAA:8 a=arxwEM4EAAAA:8 a=QdXCYpuVAAAA:8 a=7g1VtSJxAAAA:8 a=ekHE3smAAAAA:20 a=UretUmmEAAAA:8 a=Ia-xEzejAAAA:8 a=nUuTZ29dAAAA:8 a=whhsjdpMVE2MWjhqyQAA:9 a=XV7jJVXoENFgmkKpoA4A:7 a=KEXuJ0XXEJ-SdkZnxCeJcRtxZdYA:4 a=1vhyWl4Y8LcA:10 a=EzXvWhQp4_cA:10 a=ON6YuNZtFom2soow:21 a=3DY7Xr9oOBYq1Std:21 a=Y2VNeNrzAAAA:8 a=yMhMjlubAAAA:8 a=TW66zc2HAAAA:8 a=SSmOFEACAAAA:8 a=HQ31llbKAAAA:8 a=rDWCm_uYmj1zaIRZSMsA:9 a=-bupT8xGwYMRJQuzlnkA:7 a=JSfnRqNBTxrHCErw2UHiS_rJmLYA:4 a=B7460V3tIzFahBg3:21 a=g3MviC3vvsY9XGEE:21 X-Cloudmark-Score: 0 X-Originating-IP: 75.191.186.236 Received: from [75.191.186.236] ([75.191.186.236:1395] helo=computername) by cdptpa-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.2.39 r()) with ESMTP id CE/F8-04641-79EAB2B4; Fri, 18 Dec 2009 16:32:24 +0000 From: "Ed Anderson" Message-ID: To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Radiator/Oil Cooler Combo Date: Fri, 18 Dec 2009 11:32:34 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CA7FD5.CB993EE0" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: Acp/+7tWFjDqXMknRG2EeZN7ZfyWJQAA5ssA In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CA7FD5.CB993EE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On one early year Mazda rotary installation, they had a similar arrangement. They had a small heat exchanger that went between oil filter and the block. It apparently did not prove satisfactory in that application and soon disappeared. If you use the Rx-7 Oil cooler, it has a thermostat which should keep the oil temp near optimum. When the OAT cools the thermostat starts to open and diverts oil around the cooler core thereby maintain its heat at/near some target temperature. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Mann Sent: Friday, December 18, 2009 11:03 AM To: Rotary motors in aircraft Subject: [FlyRotary] Radiator/Oil Cooler Combo I was watching a video that was created by Tim England regarding his 4.3 V6 install in a velocity. In his install he was running some sort of oil cooler that was a combination oil filter mount with a heat exchanger working off of the coolant from the radiator (or something to that effect.) His argument for this approach centered around his belief that under extremely cold temps at altitude, an oil cooler that is inside the radiator may make the oil too cold to run at peak efficiency. i.e. keeping the oil at around 195F was a better option under all temperature conditions. So now I have these questions: Does this philosophy translate to Rotary powered aircraft? Is the oil cooler/radiator a good solution? If it is, do I need to use a different inch^3 figure per HP to derive the correct radiator size? If the 195F oil solution seems viable, does anyone know of an oil filter mount that includes a heat exchanger? T Mann __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0009_01CA7FD5.CB993EE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

On one early year Mazda rotary installation, they had a similar arrangement.  They had a small = heat exchanger that went between oil filter and the block.  It = apparently did not prove satisfactory in that application and soon = disappeared.

 

If you use the Rx-7 Oil cooler, it = has a thermostat which should keep the oil temp near optimum. When the OAT = cools the thermostat starts to open and diverts oil around the cooler core thereby maintain its heat at/near some target = temperature.

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Thomas Mann
Sent: Friday, December = 18, 2009 11:03 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Radiator/Oil Cooler Combo

 

I was = watching a video that was created by Tim England regarding his 4.3 V6  install = in a velocity.

 <= /o:p>

In his = install he was running some sort of oil cooler that was a combination oil filter = mount with a heat exchanger working off of the coolant from the radiator (or something to that effect.) His argument for this approach centered = around his belief that under extremely cold temps at altitude, an oil cooler that = is inside the radiator may make the oil too cold to run at peak efficiency. = i.e. keeping the oil at around 195F was a better option under all temperature conditions.

 <= /o:p>

So now I = have these questions:

 <= /o:p>

Does this philosophy translate = to Rotary powered aircraft?

Is the oil cooler/radiator a good solution?

If it is, = do I need to use a different inch^3 figure per HP to derive the correct radiator = size?

If the 195F = oil solution seems viable, does anyone know of an oil filter mount that = includes a heat exchanger?

 <= /o:p>

T = Mann



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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