DAG Brown Injector and Ejector Designs – Very Impressed

DAG Brown Injector and Ejector Designs – Very Impressed

This topic has 5 replies, 3 voices, and was last updated 13 September 2019 at 21:10 by Howard Lewis.

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12 September 2019 at 15:25 #428715
stephen goodbody
Participant
@stephengoodbody77352
Hi all,

I recently tested three 26oz injectors, the first I have built, having the internals made to DAG Brown's design first published in Model Engineer magazine and latterly in his excellent book.

I'm happy to report that all three injectors worked first time and picked up reliably from 50 psi to 120 psi. I couldn't be more pleased!

I've also built a vacuum ejector using the internals detailed in Mr. Brown's book and, although not yet tested on steam, it certainly works far better on air than other designs I have tried to date.

I'm not sure whether Mr. Brown uses this website but, if anyone out there knows him personally, please convey my thanks to him for an excellent piece of work.

Best regards

Steve
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12 September 2019 at 15:25 #1864
stephen goodbody
Participant
@stephengoodbody77352
12 September 2019 at 16:27 #428728
Neil Wyatt
Moderator
@neilwyatt
If you can attend any model engineering shows where the SMEE are exhibiting there's a good chance you will be able to meet Derek and thank him yourself.

Neil
12 September 2019 at 16:53 #428730
stephen goodbody
Participant
@stephengoodbody77352
Thank for the reply Neil, however I don't live in UK I'm afraid.

Best regards,

Steve
13 September 2019 at 20:53 #428874
Neil Wyatt
Moderator
@neilwyatt
I'm sure your comment will reach him

Neil
13 September 2019 at 21:10 #428876
Howard Lewis
Participant
@howardlewis46836
If anyone wants to meet him, Derek will be demonstrating his Quorn cutter grinder, on the Peterborough Society of Model Engineers stand at the Festival of Model Railways at the Excel Centre, at the East of England Showground in Peterborough over the 7th and 8th of December,

He may well be on the S M E E stand at The Midlands Model Engineering Exhibition at The Fosse, in October, but I do not know if or when he will be there.

Howard
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