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It would be interesting to measure flow in both engines. I thought that both Lycoming and Mazda engines rejected 2/3 heat load through the oil that is why I started going down this road. If the engines generated the same Hp than the heat load should be similar.
Joe Berki
At 12:26 PM 6/10/2004 -0400, Mike Robert wrote:
Al Gietzen wrote:
I received some preliminary information about oil flow rates in Lycoming
engines which was stated as 5 gal/ min. The other list had a thread where
it was stated that the flow rate of the 13b oil pump was 9.5 gal / min @
6000 rpm. How would play out in a scenario where an aircraft oil cooler
was used in place of the Mazda unit? It would seem that the AC cooler can
adequately cool 5 gal/min while the mazda unit can cool 9.5 gal/min. If 2
A/C coolers where used would the two scenarios be equal? Just thinking out
loud any thoughts? Thanks
Joe Berki
Could be, but you really don't know. The flow rate numbers are approximate, and the margins designed in may be different. You may be better off comparing core volume with a Mazda cooler. For the same HP out, I recall that the rotary puts more than twice the heat load into the oil.
Al
That is correct. The rotors are cooled, solely and internally, by the oil.
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