I have been monitoring this group for three months now and look forward to
each day's postings.  I am an active pilot (P210) and a long-time subscriber
to Kitplanes, so your discussions surrounding the perfection of the rotary
aviation engine really intrigue me.  A 337 running two rotaries would be one
heck of an airplane!

I apologize to the aviation purists that my posting is not aviation related,
but it is rotary related.  I own a small manufacturing company in North
Central Montana which has twenty years experience building portable natural
gas compressors.  Our units feature rotary screw compressors driven by
piston engines (natural gas powered).

I would like to investigate the possibility of utilizing the rotary engine
as a "valve-less" compressor.  I am hoping that through this group I can
find individuals who would be willing to provide engineering services for
this concept.

Ideally, I would like to see the driver and the compressor integrated into
the same rotary engine block--one rotor driving another.

My major concern is that the stock rotary has too much inherent overlap
between the intake and discharge ports to work properly as a compressor
without the installation of intake and discharge valves.  Is there a way to
re-configure the ports to eliminate overlap?

Cole T. Chandler

Sure you put the output p-port just about where the spark plugs
are.

Wankel rotaries have been widely used as compressors.

Paul Lamar ...No rotor no motor.

Isn't the overlap eliminated in the Renesis, or is it just
minimized ?

John

Yes it is (sort of) but that has nothing to do with a compressor
configuration. The compressor config needs an air outlet
port near the combustion chamber. If it is anywhere else
the engine compresses the air and then lets it expand again
and THEN merely escape through the existing exhaust with no
pressure change. The difference is there is no fuel and spark
to expand the air.

Just bore a p-port hole where the lower spark plug hole is
and you have a mighty fine, perfectly balanced, 10,000 RPM
air compressor capable of horrendous air flow.
You don't even have to do that if you want lower flow.
Just screw a hose fitting in the spark plug hole.
Block the top spark plug hole with a stock
spark plug. You will get at least 150 psi.
If you fill the depression in the rotors you will
probably get close to 200 psi or more.


Paul Lamar ...No rotor no motor.

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