Mailing List flyrotary@lancaironline.net Message #31759
From: Hans Conser <hansconser@gmail.com>
Subject: Re: [FlyRotary] Re: Pusher cooling
Date: Thu, 11 May 2006 22:39:57 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Al, I was envisioning a cheap 110V 3HP squirrel cage fan sitting on the ground under your wing with some flexible ducting going from its outlet to the oil cooler inlet, with a sheetmetal "manifold" to give you some area to duct tape it to the underside of your wing.  Should work good for static testing.

Hans

On May 11, 2006, at 10:52 AM, Al Gietzen wrote:

Since the water is doing well, have you considered an oil to water heat
exchanger. That will probably drive the water temps to 'problematic',
but then you have the option of implementing John's augmenter.

Yes; my earliest designs included oil to water heat exchanger because there
are some advantages to have them coupled.  But the KISS principal wins out.
I could find no oil/water exchangers that were designed for the high oil
flow rates of the mazda engine, so it could only work in a parallel
arrangement.  I did not design the coolant system to handle additional load
from the oil.

Al


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