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Joe,
The Mazda Oil pump is pretty good. If you are concerned with the amount it produces we have racing ones that will flow more. The only time they fail is when the shaft locks up as the gears and chain are a strong design.
Kathy
-------Original Message-------
From: "Joe" <jewen@comporium.net>
Subject: [FlyRotary] Re: Oil Cooling/Pumping
Sent: 15 Dec 2004 16:56:35
Kelly,
My first thought was to find a suitable mechanical pump and belt drive it. If an electric were chosen I would include a backup pump.
Joe
----- Original Message -----
FROM: Kelly Troyer
TO: Rotary motors in aircraft
SENT: Wednesday, December 15, 2004 11:50 AM
SUBJECT: [FlyRotary] Re: Oil Cooling/Pumping
Joe,
Idea probably has merit but it adds another failure mode (electric pump
I presume)......I would not want to use it for primary oil cooling but can
see potential as a auxillary cooling system for part time use during those
max power climbouts and / or hot weather use......IMHO
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from Joe : --------------
> With all the problems encountered with leaking oil coolers, I was wondering
> if the following has any merit.
>
> Instead of using the engine driven oil pump to circulate oil through the
> cooler, why not install a secondary cooling loop. A seconary oil pick up
> would be connected to an auxilary oil pump which would circulate the oil
> through the cooler and return to the sump. The secondary loop could be run
> with a lower pressure and larger hoses to maintain an adequate flow rate,
> putting less internal force on the oil cooler. The normal engine
> connections for the oil cooler would be directly connected to each other to
> maintain oil flow in the engine.
>
> One downside might be the couple of extra pounds for the aux oil pump, but
-------Original Message-------
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