Subject: Slide Throttle Question Revision 8
From: Rotary Engine
Date: 7/7/2005, 8:28 PM
To: AA-me


Paul, can you read this attachment.  Its an IGS out put from solid works.  I
modified
the slide throttle a little and would like your comments.  We can cut
radius's really
easily.  And I was wondering if we could use a Rod threaded perpendicular to
the
slide with a 3/32 SS rod to push and pull the slide. This would eliminate
the slot
and subsequently the minor leaking at the slot point.  If I'm off base here
please
let me know.  T.W.


Really really great idea Tom. Why did I not think of that? :) Simplifies
things
greatly with no slots in the covers required. You will have to go up to 1/4
inch
thick Teflon and spacer as the throttle control rods are usually 3/16 inch
in diameter (10-32 threaded). Up til now I have been using 1/8th inch thick
Teflon and spacers. A 3/32" control rod is a bit wimpy :)

Make the steel (green) button a little larger
to be sure it does not roll over.


Paul Lamar

---------------------------------------------------------
Paul,

Question about design and slide action:
If there are good seals in general:  compression and/or vacuum affect at
outside cavities may hinder response.  This is especially true if fluids
should build up?  Current drawings don't show any pressure relief paths,
might need relief valve at both side throttle interface provides path on one
side but other side appears to be a completely enclosed space?

Just an observation.

Bruce Rostowfske

----------------------------------------------------------
We see no sign of that so far. If we have a problem with response it
is more likely to be attributed to the fact there is no
acceleration pump function in Tracy's computer. In other words when
you slam the throttle open in a car engine the mixture is temporarily richened
to facilitate engine acceleration. In a carburetor it is called the
accelerater pump.

Paul Lamar

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