|
|
Hey, Rusty....check out this combined intercooler and intake
manifold...Spearco Core #2-115. Looks like it would save a lot of space and
maybe fit under your stock cowl? For what it's worth. Paul Conner
----- Original Message -----
From: "ACRE" <rotaryeng@earthlink.net>
Sent: Tuesday, September 23, 2003 1:06 PM
Subject: muffler Layout
> Bill Jepson wrote:
> >
> > Paul, The attached jpeg is a variation on the tangental muffler theme.
> > The intent is to cool the exhaust system using the exhaust energy. A
> > outside air source is provided near the front. The design could also be
> > inverted, (exhaust inside the the can), if the inside tube wouldn't
> > provide enough cooling. The tail pipe mixing should also make it a bit
> > quieter. comments? Bill Jepson
> >
>
> The above is Bill's original idea.
>
> Below is what I need for the dyno. The distance from the aft rotor exhaust
> to the firewall is critical. The dyno uses the stock firewall design and
> the KIS motor mount is bolted to that. The whole rig rotates about a shaft
> aft of the firewall on the prop center line axis.
>
> Ed, We have about 12 inches to work with so a 3 inch pipe dia with a five
inch
> center line bend radius uses up 6.5 inches of that 12 inches. If the
tapered
> section is 4 inches long that is 10.5 total. That will give us
> about 1.5 inches clearance between the 3 inch down pipe and the firewall.
> You could also come out the side Ed like the turbo is shown. That would
> make the whole rig smaller and lighter just like a turbo prop :)
> The con-tan muffler will go about where the turbo is.
>
> You can scale this dwg gif Ed.
>
> I figure a six inch diameter can is plenty with a two inch center
> cooling pipe. Keep the can as short as possible to keep the weight down.
> Something around seven inches ought to be about right.
> The taper outlet diameter on the cooling pipe is 1.5 inches.
> The exhaust stubs coming out of the engine are shown as 2 inch diameter.
>
> You can support the inner pipe anyway you see fit Ed.
>
> Paul Lamar
>
> The AirCraft Rotary Engine NewsLetter. Powered by Linux.
> ACRE NL web site. http://home.earthlink.net/~rotaryeng/
> Copyright 1998-2003 All world wide rights reserved.
----------------------------------------------------------------------------
----
----------------------------------------------------------------------------
----
----------------------------------------------------------------------------
----
|
|