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Not a problem, but I would say you'd be better served by
putting a mazda stock oil cooler in series in the nose. The mazda
cooler has a vernitherm that opens as it warms up, closes as it
cools down, and is robust to be able to handle the stock mazda oil
pumps pressure pulses.
You can get ideas on how to duct it from looking at Velocity's..
True its more cramped in a cozy nose. You can put a rod/valve on
the plumbing to keep hot oil out of the nose altogether in the
summer or in case of a burst. Make sure the nose cooler is first
in series with the main oil cooler. You may want to build conduit
around the fore/aft plumbing Velocity style, and run ram air up
that tubular conduit for additional oil cooling/cabin heating.
This avoids the complexity of tapping into the pan, and having the
power draw of an electric pump. The velocity has room in the nose
to dump hot air overboard and the nose oil cooler is in fulltime
use. In cold weather the hot air is "diverted" to the cabin.
Dave
On 9/14/2010 1:51 PM, Eric Deslauriers wrote:
Well, my idea is to tap the oil pan (at a level that in the event of a rupture, will not starve the engine of lubricating oil (i.e. using a stand off tube))and use an electric pump (which can be turn on or off)to circulate oil to the heating coil in the nose.
I've seen pump that can circulate 4 to 8 gal/pm easily, which I think will be ok for heating. I've also planed for a heat exchanger (coolant/oil) to help keep oil temps higher.
Do you guys see obvious faults/problems with such a setup?
Eric Deslauriers, CMA
Directeur principal / Senior Manager
Juricomptabilité et évaluation d'entreprises / Forensic accounting and business valuation
Demers Beaulne S.E.N.C.R.L.
1100, boul René-Lévesque Ouest, 20ième étage
Montréal (Québec) H3B 4N4
Téléphone : (514) 878-0290
Mobile : (514) 887-2136
Télécopieur : (514) 874-0319
mailto:edeslauriers@demersbeaulne.com
http://www.demersbeaulne.com
-----Message d'origine-----
De : Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] De la part de Bob Tilley
Envoyé : 13 septembre 2010 19:30
À : Rotary motors in aircraft
Objet : [FlyRotary] Re: New rotary Cozy IV builder
Eric
If you are going to use a Mazda rotary, the oil pressure is to high and pulsating to use! Unless you use another pump to pump it out of the oil pan to the heater. The engine oil pump will eat up most every flexible line or coil you might use.
Bob Tilley
Baton Rouge
On Sep 13, 2010, at 4:39 PM, "Eric Deslauriers" <edeslauriers@demersbeaulne.com> wrote:
I did a bit of reading on many on the car forum (read diesel and hybrids), and the consensus on these boards is that 12V electric heating does not work. Plus the draw on the electric system is very high. But I will monitor your progress for sure.
But, I was thinking of running 1/2" flexible aluminum tubing (will probably need to be insulated?) from the engine compartment to the nose section to install an oil radiator core and blower there. Exactly like it's shown in the Aerocanard video (lines glasses to the inside of both fuselage sides).
If I were to use coolant and not oil, what size/type of lines should I use? And are 1/2" line for oil adequate? If not what would be an ideal setup for someone using a radiator (coolant or oil? What line size/type?, etc.)?
I really appreciate the help (guess it not the last time I use this line :-) )
Eric Deslauriers, CMA
Directeur principal / Senior Manager
Juricomptabilité et évaluation d'entreprises / Forensic accounting and business valuation
Demers Beaulne S.E.N.C.R.L.
1100, boul René-Lévesque Ouest, 20ième étage
Montréal (Québec) H3B 4N4
Téléphone : (514) 878-0290
Mobile : (514) 887-2136
Télécopieur : (514) 874-0319
mailto:edeslauriers@demersbeaulne.com
http://www.demersbeaulne.com
-----Message d'origine-----
De : Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] De la part de Ernest Christley
Envoyé : 13 septembre 2010 16:31
À : Rotary motors in aircraft
Objet : [FlyRotary] Re: New rotary Cozy IV builder
John Slade wrote:
Something like this:
http://www.google.com/products/catalog?q=12v+ceramic+heater&hl=en&cid=12874249802847341330&ei=94GOTLWcA6DOwQXgnu2cBA&sa=title&ved=0CAcQ8wIwADgA#p
<http://www.google.com/products/catalog?q=12v+ceramic+heater&hl=en&cid=12874249802847341330&ei=94GOTLWcA6DOwQXgnu2cBA&sa=title&ved=0CAcQ8wIwADgA#p>
Chad Robinson is installing a couple of these. I will probably get
something similar.
300 watts. That's going to be 20 to 25 amps, depending on what your
regulator is set to, and will still only give 1/4 of what the typical
hair dryer delivers. Probably a minor issue if the heat can be trapped
in that insulated tube called a Cozy cockpit, but close to useless
otherwise. I have found the defrost to be MUCH more important than
cabin heat. The defrost of the Cherokee I trained in could barely keep
up with the chill of a North Carolina morning, and made finding the
airport "interesting" (wipe/scan......wipe/scan....wipe).
My solution for my Delta was to pull heat off the oil cooler. A movable
panel blocks part of the air in the exit duct and forces it through the
cabin through SCEET hoses. Vents are located in what I hope are optimal
defrosting positions.
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