Can anybody find the major design flaw in
this double reduction belt PSRU?
Interesting idea. Looks great :)
Paul Lamar ...No rotor no motor.
A very interesting design. It's very pretty. I don't know what the
major design flaw is..
Seems like a heck of a lot of machining.
The belt tensions surely isn't adjustable.
Looks like it wouldn't be fun to change belts either.
If a belt breaks, there's interesting loading on the shafts.
It uses 6 belts??
No obvious provision for CS prop, though the red/purple
anodized section
could take pressurized oil.
The prop shaft is essentially cantelievered from the red/purple
section
- presumably concentric with the input shaft.
It looks like it uses pressurized lube. That's a heck of a lot
of seals
to fail.
It only has 5 prop bolts.. :)
Matt-
Maybe the belts are adjustable. I think the pulleys expand as you
tighten the bolts around rim. Jerry
You don't need to pre tension a cog belt. The pulleys don't
expand.
It works as long as it it is not loose enough to jump teeth.
Paul Lamar ...No rotor no motor.
I had a cog belt drive with similar pulleys that adjusted as I
indicated. This was for the 60 cu in turbo charged 3 cyl Suzuki
that put out 100hp. In that case, the belts had to loosened
considerably for assembly/disassembly and of course tightened before
the engine could be run. I built the turbo exhaust manifolds for
this engine. A few were sold. It is just history now. Jerry
I have never seen a cog belt pulley that expands. You would
not happen to have a picture would you?
How about a sketch of how it works?
No I don't. Thinking back, I believe that tightening the bolts
around the periphery pulled the pulley along a cam that increased the
center distance. I am probably wrong on that as the memory is very
vague. For sure, we did have to tighten/loosen the belt. I will do
a little internet search for further info. Jerry
The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site.
http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.