Mailing List flyrotary@lancaironline.net Message #13949
From: Jack Beale <jackbeale@direcpc.com>
Subject: Re: [FlyRotary] Re: [FlyRotary]Oil Cooling/Pumping
Date: Wed, 15 Dec 2004 16:02:48 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
A,
 
    I was thinking two things: 1. simply reduce the pressure with a regulator; and 2. reduce the pressure and bypass the cooler with some of the flow.
 
    I really don't know how much oil must pass through the cooler for sufficient cooling - may be a trial-and-error thing.  At the very least the cooler wouldn't be over-pressurized and fail, causing loss of all the oil. 
 
    I suspect that the regulator could be adjusted to provide adequate flow at a pressure well within the limits of the cooler.
 
    Given the correct formula and inputs, someone could calculate a ballpark figure.  Testing would be the only way to prove it for sure.
 

 
----- Original Message -----
From: Al Gietzen
Sent: Wednesday, December 15, 2004 1:13 PM
Subject: [FlyRotary] Re: [FlyRotary]Oil Cooling/Pumping

 

    If an overpressure in the oil cooler is causing the cooler to burst...

 

    Why not limit the pressure by adding a pressure regulator in series with the cooling system....?

 

I guess you mean to bypass the cooler with some of the flow to limit pressure to the cooler?  Probably not a good idea – reduces your ability to cool the oil.

 

Al

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