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Self starting steam engines

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michael howarth 131/05/2019 07:56:45
34 forum posts
4 photos

Nearly a year on but I have found the solution to a non self starter starting. It involves the use of a one way needle roller bearing (about £3) fitted on the crankshaft. A brass collar with a drop arm is made to fit over the bearing. When the engine is running the crankshaft spins freely within the bearing. When the engine stops running a "nudge" on the bearing from an appropriately placed solenoid linked to the drop arm will push the crankshaft off of TDC or BDC and enable it to start on application of steam.

If the idea is of any use to anyone, feel free to PM me for details.

Mick

Andy Stoneman31/05/2019 20:50:00
128 forum posts
12 photos

Hi Mick

I made a get you home safe motor for the very same reason, it sat alongside the flywheel of the engine. Using r/c if needed to engage, This was enough to turn the engine over and self start again.

Andy

Andy Stoneman31/05/2019 20:51:34
128 forum posts
12 photos

102_0920.jpg

Andy Stoneman31/05/2019 20:53:31
128 forum posts
12 photos

Hi Mick not the best pic, i'll see if I can track it down If your interested

Andy

Telstar31/05/2019 23:28:31
avatar
323 forum posts
32 photos

Hi Michael, Have you thought about a Kitchen/Kitchener? rudder. there is no need to stop the engine then. If I've got my facts right this type of rudder was used by the R.N. on steam Pinnaces. These had a single cylinder steam engine, so to go astern the rudder system was used.

A number of modellers (including myself) have made RC versions of this rudder

Cheers Tom

michael howarth 101/06/2019 17:42:18
34 forum posts
4 photos

Hallo Andy and Telstar. I would love to see pictures of your starter and Kitchen rudder.

Mick

redpmg01/06/2019 20:49:43
avatar
82 forum posts
9 photos

Simplest solution was one used by a member of the Johannesburg MBC - servo with a prodder fitted to it - nudged the flywheel on the Stuart 10 ( from what I remember - 25 years ago). seldom took more than a couple of prods to get it going

One of the modern smaller servos should do the trick - could be hidden/disguised easily enough

Edited By redpmg on 01/06/2019 20:52:05

Telstar01/06/2019 23:22:20
avatar
323 forum posts
32 photos

Hi. This shows a Kitchen rudder on a model. **LINK**

On you tube search kitchen rudder, and there is video of a full size one operating.

cheers Tom

Andy Stoneman02/06/2019 01:33:04
128 forum posts
12 photos

Hi Michael,

They still used Kitchener gear on the workboats and cutters in my Day, diesel engine propelled though.Here is another option as I can't find the photo I was after showing more detail of the home safe motor. A is the Input shaft and B the output shaft, tumblerreverse_zps69d853c3.jpgin between are two rollers which using the lever will give forward or reverse without stopping or reversing the engine.

Andy

Edited By Andy Stoneman on 02/06/2019 01:33:50

michael howarth 110/06/2019 18:07:14
34 forum posts
4 photos

Thanks Andy. Pretty much the same as the reversing set up on my lathe.

Mick

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