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| Robinson Hot Air Engine. |
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| Bluechip:
Hi Dave Looks like a suitable candidate for Darrens famous Battery Charger / Washing Soda trick :zap: Whats the top left doins made from .. looks a bit brassy? But maybe it's just the PC image. A slosh of paint on the rusty bit might have been a good idea on first build. It's the cold end, so it wouldn't need to be anything exotic. Says he, knowing little about it .. :scratch: Looks strange, would make some sense if the slot in the ( top row, 3rd from left ) was not there. Otherwise it looks as if there is nothig to stop the displacer chamber filling with water. Maybe I'm not seeing it correctly ?? Dave BC |
| Stilldrillin:
Dave, Hmmmm...... Yeah....... I was wondering who had done magic with rusty gloop, some time ago...... Ta! :thumbup: The top left doins is the hot cap. Made of brass, as is the displacer piston, next to it. David D |
| Bluechip:
Dave Ah !! That slot is the feed to the power cylinder, through the rib cast in the other bit, front 2nd left. Can't see any sort of seal there though ?? How is the end of that air gallery wotsit supposed to seal to the displacer cylinder ? Doesn't look any effective way of achieving that? Bit missing ? Dollop of blue aardvark snot maybe? Dave BC EDIT Not supposed to be an O-Ring or the like in the end of the gallery doins ?? |
| Stilldrillin:
Dave, There's a male threaded tubey bit, (middle of 2nd left, front row), passes through the joint between 2nd left & top row 3rd left. And, that's where it is probably leaking...... Will investigate further, sometime..... O ring, or summat, imminent....... David D |
| sbwhart:
Interesting job you've got on their Dave. I watched that engine for ages at Manchester trying to understand how it worked and failed. Stew |
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