Page 7 of 8
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Wed May 04, 2022 11:55 am
by PeteThePen1
Well done Dietrich
As the others have said the engine parts looks wonderful. The more you show us of the build the more convinced I become that I just don't have the skills to build your design, which is a pity. However, I can continue to enjoy what you are doing.
Regards
Pete
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Tue Jun 28, 2022 6:22 pm
by slow_steamer
Hello Dietrich,
Might you share your drawings?
I'm mostly interested in the valve box and the linkage.
MArk B.
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Thu Jun 30, 2022 7:44 pm
by dampfspieler
Hello Mark,
i'm very sorry, but the engine is designed in 3D, so there are currently no classic 2D drawings.
When the engine is finished and successfully tested, I may create a set of drawings, but that is uncertain.
Dietrich
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Thu Jun 30, 2022 10:15 pm
by slow_steamer
3-D would files would be fine if you don't mind sharing.
MArk B.
Throttle-Quadrant is soldered
Posted: Mon Jul 04, 2022 7:53 pm
by dampfspieler
Hello,
the throttle quadrant is built from parts. They are silver soldered. I did it a little differently than what I drew. This makes it easy to align the handle of the regulator lever in any desired direction. There is an M3 bolt to allow the quadrant to be secured in any desired position using a pliers clamp on the lug of the throttle valve body.
- The soldered Quadrant
- Twin3238_409kl.jpg (30.59 KiB) Viewed 9918 times
- The back side
- Twin3238_407kl.jpg (56.97 KiB) Viewed 9918 times
- The front side
- Twin3238_405kl.jpg (58.07 KiB) Viewed 9918 times
Next I will sandblast the part, bevel the edges and finish the abutment for the connecting rod to the throttle slide lever.
--
Dietrich
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Thu Jul 14, 2022 6:49 pm
by dampfspieler
The throttle slide valve is finished. The valve has a recess that reduces the effective valve area when opened. This reduces the force required for actuation.
- Twin3238_437kl.jpg (19.5 KiB) Viewed 9819 times
- Twin3238_440kl.jpg (38.5 KiB) Viewed 9819 times
- Twin3238_442kl.jpg (41.95 KiB) Viewed 9819 times
The valve area without recess is 1.1 cm², with recess only 0.63 cm². This reduces the actuating force from 9 to 5 kp.
Best Dietrich
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Fri Jul 15, 2022 6:29 am
by TahoeSteam
Your work is beautiful Dietrich.
I having a bit of a struggle trying to envision the throttle. Do you have an illustration or drawing that might help?
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Fri Jul 15, 2022 8:29 pm
by dampfspieler
Hi Wesley,
it is a bit "NAVY K - Style", the pic should answer the question.
- Twin3238_445kl.jpg (37.59 KiB) Viewed 9772 times
---
Dietrich
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Sat Jul 16, 2022 6:39 pm
by TahoeSteam
Thank you Dietrich. Than helps a lot!
Re: TWIN 32 x 38 mm - steam engine for small boats or canoes
Posted: Sun Jul 17, 2022 8:19 pm
by dampfspieler
Hello,
the throttle valve linkage is mechanically finished. There are IGLIDUR-bushings in the lever and the bolts in the forks are screwed in (M5 x 0,5 mm) and secured with a lock nut.
It is possible to clamp the lever in in any desired position.
- Throttle valve lever in closed position
- Twin3238_447kl.jpg (102.06 KiB) Viewed 9705 times
- Throttle valve lever in "full throttle"-position
- Twin3238_448kl.jpg (104.4 KiB) Viewed 9705 times
- Throttle valve full opened
- Twin3238_449kl.jpg (96.89 KiB) Viewed 9705 times
All steel bolts and nuts will be blacked when the engine is successfully tested.
--
Dierich