marcin steam field trip valve video

[Dorkmo]

http://www.youtube.com/watch?v=GPUlnqlWt7U

[Mark Norton]

Very interesting.  Thanks for send that to me.

- Mark

On Tue, Feb 7, 2012 at 12:58 AM, Dorkmo <dor...@gmail.com> wrote:

http://www.youtube.com/watch?v=GPUlnqlWt7U

[Max Kennedy]

Extremely interesting.  Would have liked to hear his take on bump valves wearing fast.

 

Max

--
It can be done

[Mark Norton]

Bump valve wear is a known problem.  One solution that has been used is ceramic balls in the valve.  Ceramics are light weight (ie, faster response time) and wear well to being bashed.

- Mark

[Ken]

The White Cliffs project Tom talked about in the video had a Grame
Vagg bump valve steam engine which ran without sigificant incident for
a few years. Probably the best bump valve engine ever built simply
didn't use balls and thus avoided much of the problem. Jay Carter
used spring loaded discs with a small knob on top to keep the spring
in place...he also used some fancy material. Balls are an inherently
bad choice because they encapsulate the maximum material, and hence
weight, for the surface area.

http://www.google.com/patents?id=kBY7AAAAEBAJ&printsec=frontcover&dq=4,050,357&hl=en&sa=X&ei=JWwxT_HbGbLE2QWLhsXCBw&ved=0CDQQ6AEwAA

If you wish to see the steam engine collection in the video, perhaps
the best way to do so would be to join the Steam Automobile Club of
America ( www.steamautomobile.com ). The Annual Meet is held in early
to mid September every year in Berrien Springs, Michigan, which is
the home of the club President Tom Kimmel. Much of the meet is held
in his shop, where the steam engines and cars displayed in the video
are stored. Tom will happily give tours and answer questions, whether
you want that or not.

On Feb 7, 11:57 am, Mark Norton <markjnor...@gmail.com> wrote:
> Bump valve wear is a known problem.  One solution that has been used is
> ceramic balls in the valve.  Ceramics are light weight (ie, faster response
> time) and wear well to being bashed.
>
> - Mark
>

> On Tue, Feb 7, 2012 at 10:05 AM, Max Kennedy <mekennedy1...@gmail.com>wrote:
>
>
>
> > Extremely interesting.  Would have liked to hear his take on bump valves
> > wearing fast.
>
> > Max
>

> > On Tue, Feb 7, 2012 at 7:49 AM, Mark Norton <markjnor...@gmail.com> wrote:
>
> >> Very interesting.  Thanks for send that to me.
>
> >> - Mark
>
> >> On Tue, Feb 7, 2012 at 12:58 AM, Dorkmo <dor...@gmail.com> wrote:
>
> >>>http://www.youtube.com/watch?v=GPUlnqlWt7U
>
> > --

> > It can be done- Hide quoted text -
>
> - Show quoted text -

[Max Kennedy]

Familiar with this but wondering about the material.  Have never found out what that was.

 

MK