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Subject: More rotary uses?  [FlyRotary] Titanium rotary?   [FlyRotary] Re: Big engines
Date: Fri, 6 Jun 2008 12:00:11 -0400
Message-ID: <D93151BB785CA5499C27CBF0A3839361480125@EVS2.aeroflex.corp>
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Thread-Topic: More rotary uses?  [FlyRotary] Titanium rotary?   [FlyRotary] Re: Big engines
Thread-Index: AcjH3uMplcae6UJGRvGSzQo8k8rQvwAD06qw
References: <list-2956298@logan.com>
From: "Schemmel, Grant" <Grant.Schemmel@Aeroflex.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>


 What with rising energy costs, I've been kicking around an idea for
creating a solar-thermal generator system.  If you're not familiar with
the solar-thermal idea, it uses solar energy concentrated through a
reflector to heat a pipe containing either oil or water in order to make
steam.  You could use the waste heat to actually heat your house too
(co-generation).  In looking for something on the order of a
micro-turbine, it occurred to me that since the rotary acts like a
turbine, couldn't you plumb it to run on steam?

I was thinking that maybe if you position the ports correctly, you might
be able to power two sides of a rotor at once: Side A would be feeding
steam in through the normal intake port, then exhaust out through a
p-port somewhere around the leading sparkplug location; Side B would be
feeding steam in through a new port somewhere around the trailing
sparkplug and exhausting out the normal exhaust port.

I'm pretty sure this would work for one side, but I'm not so sure about
two sides at once.  I have a '91 turbo 13B that I'm intending to go into
a BD4 someday, but have not gotten around to tearing it down, so I'm not
intimately familiar with Wankel timing yet.  What do those of you who
have a lot more experience with the engine think of the idea?

Grant Schemmel
Penrose, CO

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Friday, June 06, 2008 8:06 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Titanium rotary? [FlyRotary] Re: Big engines

Always interesting to hear of excursions from the stock 2 rotor format.

  Does anyone recall the gent who was going to make a rotary engine out
of titanium?  As best I recall I believe he actually had a rotor tact
welded reportedly out of titanium plate - there were some photos.  I
doubted at the time that anything would come of it, but it was
interesting to see what some folks are willing to tackle.

Ed

----- Original Message -----
From: "Ernest Christley" <echristley@nc.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, June 06, 2008 9:59 AM
Subject: [FlyRotary] Re: Big engines


> Lynn Hanover wrote:
>>  In this case you could machine away one face or both faces and braze
two
>> rotors together. One end with the gear and the other without. You
could =

>> have
>> twice the bearing length, and nearly twice the displacement.
>>
>> Just the crank, rotors and housings would be special. Everything else

>> could
>> be stock pieces. Maybe double the torque, could be direct drive?
>>
> Those voices keep talking to me.
>
> Could you use two rotor housings, brazed then pinned on the
compression =

> side?  Then they wouldn't really need to be special either, and you'd
get =

> FOUR plugs per cylinder.
>
> Side seals would be standard, but would the apex seals have to be
special =

> made...or could you use two of those side-by-side?
>
> You would have to have either a monster bridge port or a peripheral
port =

> to feed the monster.
>
> Renesis rotor housings probably wouldn't work.  The side exhaust would
be =

> to restrictive for twice the volume.
>
> You'd need to build a new oil pan, or use a remote sump.  Simple.
Special =

> made compression bolts are also a cinch.
>
> On a guess, you'd be adding about 15lbs per rotor (?).   It could
possibly =

> end up being a 400Hp engine with an installed weight under 350lbs(?).
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub: =

> http://mail.lancaironline.net:81/lists/flyrotary/List.html 


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