Mailing List flyrotary@lancaironline.net Message #36644
From: Russell Duffy <rusty@radrotary.com>
Subject: RE: [FlyRotary] Re: oil coolers
Date: Mon, 30 Apr 2007 07:40:57 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

      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...)
  
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