My column-style steamengine

A special section just for steam engines and boilers, as without these you may as well fit a sail.
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marinesteam
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Re: My column-style steamengine

Post by marinesteam » Wed Dec 18, 2019 11:30 pm

Will you just stop it already! You're making me feel inadequate ;) :lol:

I really like the brazing fixture for the trough. Very nice!

Ken
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Re: My column-style steamengine

Post by dampfspieler » Tue Jul 07, 2020 7:38 pm

Hello,

every engine needs an throttle valve, so i have asked my library. I found two different solutions, a piston valve (STUART Undertype) and a slide valve (Navy K engine). The advantage of a piston valve is that the actuating forces are independent of the effective vapor pressure. That's why I chose it.

The valve body i have built from three gun metal parts, they were silver soldered.

FahrVent026kl.jpg
The soldered valve body.
FahrVent026kl.jpg (40.72 KiB) Viewed 1029 times

There are four ventilation holes in the piston to prevent it from sucking at "full throttle" position.

FahrVent036kl.jpg
Piston with ventilation holes.
FahrVent036kl.jpg (41.63 KiB) Viewed 1029 times
FahrVent044kl.jpg
The completed valve.
FahrVent044kl.jpg (57.66 KiB) Viewed 1029 times

Best Dietrich
Last edited by dampfspieler on Tue Jul 07, 2020 7:45 pm, edited 1 time in total.
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dampfspieler
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Re: My column-style steamengine

Post by dampfspieler » Tue Jul 07, 2020 7:44 pm

Hello,

I wanted to know what it looked like in the work position, so I put it in this position.

FahrVent053kl.jpg
FahrVent053kl.jpg (65.89 KiB) Viewed 1028 times

I like it. For those who think that a simple ball valve would have done it - yes, but a technical solution should also look nice

Next step will be to built the quadrant and the operating lever.

Best Dietrich
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dampfspieler
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Re: My column-style steamengine

Post by dampfspieler » Fri Aug 07, 2020 7:21 am

Hello,

a little success in building the throttle valve - the operating lever and some other parts are drawn.

FahrVent056kl.jpg
FahrVent056kl.jpg (50.23 KiB) Viewed 891 times

Best wishes Dietrich
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Re: My column-style steamengine

Post by Davis Dry Dock » Sat Aug 08, 2020 9:45 pm

That will no doubt work like a wonder and has the added advantage of looking much nicer than the ball valve ;)
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Re: My column-style steamengine

Post by dampfspieler » Mon Aug 24, 2020 9:02 pm

Hello,

to be sure that the measurements are correct and the valve actuation works as desired, I cut out the parts with the cutting plotter and built the quadrant on a trial basis.

The result can be seen here. I am satisfied and will now have the parts laser cutted.

FahrVent086kl.jpg
Throttle valve - lever in closed position
FahrVent086kl.jpg (37.57 KiB) Viewed 755 times

FahrVent085kl.jpg
Throttle valve - lever in position "full throttle"
FahrVent085kl.jpg (36.64 KiB) Viewed 755 times

--
Dietrich
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Re: My column-style steamengine

Post by PeteThePen1 » Wed Aug 26, 2020 8:47 pm

Wow!

That looks so useful and elegant. I look forward to seeing it finished in polished bronze/brass or whatever.

Regards

Pete
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Re: My column-style steamengine

Post by dampfspieler » Tue Sep 08, 2020 8:43 pm

Hi Peter,
... I look forward to seeing it finished in polished bronze/brass or whatever.
some actual pictures of stainless steel and some other materials.

The valve is mechanical ready and all parts move well.
FahrVent141kl.jpg
to make the size clear
FahrVent141kl.jpg (50.16 KiB) Viewed 588 times
FahrVent143kl.JPG
The backside
FahrVent143kl.JPG (37.31 KiB) Viewed 588 times
FahrVent145kl.JPG
The frontside
FahrVent145kl.JPG (37.69 KiB) Viewed 588 times

The operating lever can be clamped in any position with the handwheel. The handle is stained and oiled beech wood, its shade is pear. The handle is screwed onto the operating lever, so it sits firmly. The pivot pins are made from the shaft with M5 x 0.5 mm thread and the head from 8 mm hexagonal brass, both are silver soldered.


Regards
Dietrich
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Re: My column-style steamengine

Post by DetroiTug » Tue Sep 08, 2020 9:15 pm

Dietrich,

Einfach Klasse. Very nice work. I would like to build something similar for the tug at some point.

-Ron
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Throttle-Valve finished

Post by dampfspieler » Mon Sep 14, 2020 2:07 pm

Hi,

the throttle-valve is finished. I installed a cover plate in front of the quadrant so that it looks more pleasing.

FahrVent158kl.JPG
before
FahrVent158kl.JPG (53.35 KiB) Viewed 504 times
FahrVent162kl.JPG
after
FahrVent162kl.JPG (40.26 KiB) Viewed 504 times

I also installed a connecting rod between the valve and the cylinder, so that the valve is secured against twisting.

FahrVent168kl.JPG
FahrVent168kl.JPG (65.03 KiB) Viewed 504 times

--
Dietrich
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