Landon
A straight link in Stephenson's was tried by Allen. He needed to use
compensation links to get acceptable valve events. The full sized valve gear
was very successful and use in Australia as a standard valve gear into the
1920's.
If you have a straight expansion link, the gear will not operate well at high
cut off.
However, it will work well in full gear.
Provided you do not want to "notch" the valve gear for speed control it will
work well.
I have seen straight expansion links that work acceptably with an otherwise
standard Stephenson gear.
Lastly, if you can produce straight expansion link, you can also produce the
eccentrics. give it a go.
Chris Rowles.
Landon Solomon wrote:
> Alright, I stormed this up a few days ago while trying to go to sleep and
> it just seems like a good idea.
>
> It's based on Stephenson's link motion but I'm trying to keep the expansion
> link straight so I can make all the parts (except the eccentrics) myself.
>
> The idea is to conver my Ruby over to an actual variable valve-gear...
> thoughts?
>
> http://www.nogitsune.net/pix/simplink.gif
>
> Trot, the thought-filled, fox...
>
> /\_/\ TrotFox \ Always remember,
> ( o o ) AKA Landon Solomon \ "There is a
> >\_/< [EMAIL PROTECTED] \ third alternative."
