Mailing List flyrotary@lancaironline.net Message #15419
From: Alex Madsen <madsena@rose-hulman.edu>
Subject: RE: [FlyRotary] Re: water cooled matrix in the oil pan
Date: Tue, 18 Jan 2005 13:22:29 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

I have the perfect matrix for you, open cell Aluminum Foam. This is one of the coolest materials I have ever seen. We used it for custom heat sinks and heat exchangers at BioServe Space Technology. Drop a chunk lf this it your oil pan with tubes running through it and you will have a perfect heat exchanger.

One could probably attach this to the out side of the oil pan to and get some extra cooling that way to.  

 

http://www.ergaerospace.com/literature/erg_duocel.pdf

http://www.ergaerospace.com/duocel/aluminum.htm

 

 

Alex Madsen

 


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Tuesday, January 18, 2005 10:57 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: water cooled matrix in the oil pan

 

I understand the Problem (keeping website current) Todd! 

 

The oil pan heat exchanger did work but was removed after I got better airflow through the normal Mazda cooler.  I saw it as an opportunity to get rid of about 2 - 3 pounds of hardware, hoses, etc.  I still like the basic idea and may try a much larger exchanger in the pan to allow the use of a smaller air/oil cooler.   

 

Tracy 

----- Original Message -----

From: Todd Bartrim

Sent: Friday, January 14, 2005 1:45 AM

Subject: [FlyRotary] Re: water cooled matrix in the oil pan

 

Hi Mike;
Tracy once used a copper line running coolant through his oilpan, but this
was on an early version of his 13B adventures. Recently someone had asked me
about that, after reading through my old copy of his book, and I'd been
meaning to ask Tracy when/if/why he removed it?
So how about it Tracy? And are you planning (between filling Rusty's
orders) on writing an updated book based on knowledge gained over the last
few years, with the Renesis & 20B. I often get asked about this.

Todd (can't even find time to update my own website... 2 years out-of-date)

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of Wynn, Mike
Sent: Thursday, January 13, 2005 10:27 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] water cooled matrix in the oil pan


Dear All,

I was reading through some of the old postings and came across Leon's post
in which he suggested putting a water cooled matrix in a modified oil pan
(sump).  This seems to have a lot going for it.  The posting is #1188.  Of
course there are minor issues like not stuffing the dipstick through the
cooler matrix and making sure the oil pick up goes to the right place, but
nothing insurmountable.

There were no follow up postings and yet it seemed quite a decent idea.
What am I missing (apart from pictures of wombats and/or nude moose).

mike (lurkalot)

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