Thankyou very much Bunkerbarge,
I will try to give you some more techy info,
The model is not that small, she is 44" long x 9 1/2" beam.
Aluminium heatshielding foil and butchered soldering mats form the heat reflective silver surfaces you might see in the piccies, not really needed but i thought it was a good idea as the models machinery will be completely enclosed.
Ventilation is from eight PC cooling fans driven off the 12v power supply for control system and pump etc, the cowl vents at the forward half pull cold fresh air into the boiler space and four cowl vents at the stern exhaust the hot/warm air.....resulting in a scale model form of forced draught.....kind of anyway it works for me.
The two TVR1 A's are independently controlled through the long brass shafts at the top of the engines, these are linked via chain and sprockets and clevis linkages to the reversing levers.
Steam regulation is independently controlled through the long chain and sprockets nearest the hull sides to two ACS steam regulators, which are bolted to a link plate which supports the rear funnel/stack one per engine.
The water pump is a home built small bore long stroke ram pump driven off a 12v 50-1 reduction geared motor through an adjustable aluminium eccentric cam.
Both engines can be removed quickly as one unit by disconnecting reversing links and steam/exhaust pipes, and undoing two socket cap bolts lifting out the sludge tray and engines in one unit.
Lubrication is from a single large displacement lubricator in the main steam line, and steam oil separation is done in two stages both engines exhaust into the large condenser drum between the shafts/couplings. Then a single large bore steam/exhaust pipe feeds out to the rear funnel, which has a separate drip trap built into the base and an overflow tank for any sludge/water.
This results in a very clean running steam model.......thankfully as the model is going to have about 14 ships boats all above/around the engine room rear super structure.
As for the water level control that is a secret at the moment, sorry....as this and a gas valve and temp regulation monitoring system will soon be available commercially resulting from my tinkering........it does work believe me, With this system i can get about an hours worth of reliable steaming without any worries.
I hope i have answered some of your questions?
Cheers
Ian
Author
Topic: Pictures of your Current or Past Steam Projects. (Read 40978 times)