Subject: Lubrication/Cooling
From: Rotary Engine
Date: 3/16/2007, 1:29 PM
To: AARotary Engine





         > Paul--
         >
         > This may be an off the wall question; however,--since 1/3 of the
         > cooling for the 13B is accomplished by the oil and the rest
   by the
         > coolant in
         > the radiator and side seal of the rotor integrity is of
   paramount
         > concern, why not try putting motor oil in both the crankcase
   and the
         > "coolant system"? Oil is lighter than water.
         >
         > Tom Chapman
         >
         > Side water seals are no longer a problem. Particularly if you
         > use Teflon encapsulated silicone O-rings. Oil is not a good
         > coolant fluid. The heat transfer from oil to metal is not
         > good. I suspect it has something to do with viscosity. Bill
         > Schertz on here is our resident expert on this subject.
         >
         > Pure water is best. Everything else is downhill from there.
         > --
         > Paul Lamar ...No rotor no motor.
         >

        In my installation, it looks like I'll require two radiators
   and two
        oil coolers to make things fit.  Should the plumbing be in
   parallel or
        series?

        Scott Gettings

        In theory parallel is better. In practice it is hard to make
        sure both rads are getting their fair share of coolant.
        You need flow meters on both.

        Paul Lamar ...No rotor no motor.


   If they have to be in series, make the hose between them as BIG as
   possible?


   Matt-

   Why Matt?
   --
   Paul Lamar ...No rotor no motor.

To make the series radiator look as much like one big radiator as
possible...  Nevermind.  Friday fog is rolling in in my brain..


Matt-

The problem with two in series is the first rad does most
of the work as the temperature difference between air and coolant is
the greatest. The second rad has much cooler coolant so the
heat transfer rate is not as high.

Paul Lamar ...No rotor no motor.

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