That sounds great, My experience with points systems has proven to me to be
simple and reliable. There are always signs of a problem before any of
the components
fail.
I have a sachs and a OMC but they are charged cooled.
How can we cool them better than adding water cooling to the end
plates and
the housing?
David Mikesell
Not easy. Convert to an oil cooled rotor.
I had not thought of this idea before but our good experience with the
dry sump
system on the TTC engine suggest the way to do it is have a totally
independent oil
system with the sole purpose of squirting cooling oil up into the
rotor.
You need to figure out a way to get pressurized oil into a hollow
E-shaft.
A scavenge pump should be able to recover this and feed it through
an oil cooler. No need to change any of the bearings.
--------------------------------------------------------------------------------
Block off all that mickey mouse charge cooling stuff and use the
butter fly
valve as the throttle for the p-port.
There will be enough oil sloshing around in there to lube the bearings.
You will need a two section dry sump pump. One for pressure and
the other for scavenging. Use Mobil 1.
Still mix oil with the fuel to lube the apex seals.
This could be BIG if it works. LOTS more HP!!!
Should work on just about all charged cooled engines.
Paul Lama
Sounds like a project I want to do!
I think I will try it on the Sachs first. I have more of them than the
nicer OMC.
I have another question though, what would be the best way to monitor
the temperature to keep from melting the rotor or over temping the seals
are causing heat damage?
-------------------------------------------------------------------
Looks good, but wouldn't just a really small oiling hole in the E shaft
work to spray cooling oil and bearing oil into the cavity?
Your idea of using the butterfly as a P port? Won't it cause a bit of
restriction with the 90degree bend right after the butterfly into the
housing?
Maybe hole saw thru the area to give a straight entry to keep the air
velocity higher?
I have see pictures of P port conversions, but what is the proper way
and design changes needed for the P port?
The port in each end housing would give a easy way to have the oil drain
out to a scavenge pickup if the engine is in a vertical shaft application.
Which is actually one of the ongoing projects. A ultralight helicopter.
With the reduction ideas you have given me it seems to be right for that
project
too.
David Mikesell
I think one get get paint that changes color according to temperature.
Straight in for a P-port is great. The OMC needs modification to make it
straight in.
I think you need the oil squirter tube. Perhaps even two of them pointing
apart at a 10 or 20 degree angle. That rotor runs HOT!.
Paul Lamar
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