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Ejectors Help Needed

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Deltic007	20/03/2016 19:39:52
131 forum posts 12 photos	Hi, I need to fit an ejector to my 71/4 model,does anyone have a drawing they could let me have or is there an article in one of the magazines? Cheers n thanks
fizzy	20/03/2016 20:58:31
1860 forum posts 121 photos	like the one james bond had in the car?
Deltic007	20/03/2016 22:10:32
131 forum posts 12 photos	You really expect me to furnish that with something sensible?
Simon Collier	20/03/2016 22:18:27
525 forum posts 65 photos	Ejectors have not been very well covered. There is a design in Derek Brown's book on injectors. Martin Evans also gave a design in his book, but it didn't work for me. I'll try the Brown one soon and I bet it will work perfectly.
julian atkins	20/03/2016 23:25:15
1285 forum posts 353 photos	Brian Hughes' drawing for ejectors are on the Reeves vacuum braked bogie drawings. They differ from the DAG Brown drawings in his injector book. I havent tried Derek Brown's ejector, but I have tried a few versions of the Brian Hughes design. The 7.25"g association might be your best bet. With vacuum ejectors, the larger you make them the less critical the dimensions become. They are quite forgiving in 7.25"g. I have all the taper reamers to make them. The steam and air exit pipe off the ejector can have quite an effect on performance. This can easily be seen on test. It needs to be of generous diameter verses length IMHO. Cheers, Julian Edited By julian atkins on 20/03/2016 23:26:06

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