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From: "Leon" <peon@pacific.net.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-566455@logan.com>
Subject: Two End Gears was Re: [FlyRotary] Re: Single rotor Pix
Date: Tue, 14 Dec 2004 23:39:07 +1100
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----- Original Message ----- 
From: <Lehanover@aol.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, December 14, 2004 12:26 PM
Subject: [FlyRotary] Re: Single rotor


> In a message dated 12/13/2004 6:59:04 PM Central Standard Time,
> marv@lancaironline.net writes:
>
> << Pretty cool.  How do you deal with the fact that you have 2 end gears
with
> a
>  rotor that's only geared on one side?  (Probably a very simple answer,
but I
>  had to ask...)
>
>       <Marv> >>
>
>
> I was thinking that there is room for the stationary gear teeth inside
the
> open side of the rotor. Even without cutting the gear teeth down some. If
I get
> time I will dummy up a set and see if that is the case. The bearing runs
to
> the end of the gear teeth and you wouldn't want to give up any bearing
support.
>
> Lynn E. Hanover
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html

Hi Guys,

Seeing those photos that Lynn posted are mine,  I really should be the one
to explain to Marv.

The pic with the Renesis housings is just that.  I bought a front,  rear and
rotor housing (plus all the other stuff like gears,  rotors,  seals,  etc)
in order to make a single rotor Renesis engine.  At the time that the pix
were taken,  I had just unpacked the stuff!

Additionally,,  at the time,  I hadn't yet decided how I was going to cool
the rotors,  let alone which gear I was going to use to drive the rotor.

 There are a number of ways of oiling the rotor efficiently,  apart from
having it squirted diagonally out of the crank like it does on the factory
set-up.  Which is fine if you want to butcher a factory crank (which is a
somewhat traumatic engineering experience on it's own).  Further, one
has to sacrifice some bearing area,  a problem when one wants to extract
mega neddies for a race engine.

Additionally,  apart from sacrificing bearing area, it's a REAL pain to
engineer if one is making one's own cranks from scratch (as I am)..  So lets
see who can come up with an alternative solution - I've worked out 2 quite
simple and elegant ways and have tested the easier option in an REW based
"WunLunga" (One Lunger - Single Rotor for those who don't "tork strine").

The REW based WunLunga engine has so far done in excess of 3,000 Km in my
test mule
(a Series III RX7).  It was removed - with the view of installing it in our
Under 2 Litre Sports Sedan - this was shortly before I became ill.  This was
done in the anticipation of installing the Renesis version of the WunLunga
in the mule..

Unfortunately,  everything has been on hold since I became gravely ill in
May.  At any rate,  I'm happy to report that I finally found a doctor who
knows his oats,  and I am now well on the way to recovery,  and I'm back on
the tools again (albeit very slowly and only for a few hours a day).

As for the Reneis Wunlunga,  the end housings are currently getting some
SERIOUS "die grinder therapy" - the insides of the ports have REALLY sharp
edges - and it will be shortly assembled and installed in the "Venerable
Mule" for test & evaulation purposes.

The REW based WunLunga is slated to be installed in the 2L Sports Sedan over
January/February.  It will cop a turbo with a couple of bar of boost.  I
want too see what breaks,  if anything.

Cheers,

Leon