Ed,
I believe if Dave Leonard can
now 'see the light' through the muffler - it may be an indicator
that the sound waves have broken through the joining cones. In any
event it will only get louder at the passage gets bigger.
I figured this would be the weakest
link in the HushPower design as it concentrates all the energy
into the smallest area, holes in the cones also weaken the
area - not so with our design.
George ( down under)
Ed,
Reflective cone theory is what Bill
Jepson and I have designed into our joint venture exhaust
design - although I haven't finished it so I don't
know how well it works.
The principle is to maintain a clear
passage for the exhaust flow but redirect the sound waves (which
are energy) therefore turning the sound into heat. In our
design the heat is dissipated with cool air flow through the
exhaust and further cool air around the exhaust.
However this is not a cheap exhaust
to make, as mine is assembled out of a number of cones ( 1.6mm
SS). I think the cost of the cones came to $200 and then there's
the welding. There is also the fact that it is also not light
because of the thickness of the material.
The bottom line is that cones by
their nature redirect sound energy into heat. The idea is to not
have a direct exit for the sound energy - this has been achieved
in this design by having the sound waves inter the center of a
cone which is blocked-off and is redirected through the holes and
redirected out.
So the theory in this design (
HushPower) is sound - excuse the pun. The packing material merely
protects the light outer skin. There will be a tremendous amount
of heat in the inner chambers so I don't know how long they will
last, maybe there thick enough to take it ? However if their cheap
enough just replace them.
George ( down under)
Sent: Thursday, January 10,
2008 4:34 AM
Subject: [FlyRotary] URL
for HushPower
It looks like Hushpower has been spun off
from FlowMaster. Here is the URL for the Hushpower
site.
Ed
No virus found in this incoming message.
Checked by
AVG Free Edition.
Version: 7.5.516 / Virus Database:
269.17.13/1214 - Release Date: 8/01/2008 1:38 PM
No virus found in this incoming message.
Checked by AVG
Free Edition.
Version: 7.5.516 / Virus Database:
269.17.13/1214 - Release Date: 8/01/2008 1:38
PM