From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Proposing experiments on the flow of fluids through pipes and valves for engine induction systems.
| Identifier | ExFiles\Box 36\1\ scan 009 | |
| Date | 23th June 1917 | |
| To SFC. from R c. to J.{Mr Johnson W.M.} S. 4/17 de H COPY. RB{R. Bowen}/B7217. X.2907 - EXPERIMENTS RE FLOW OF FLUIDS THROUGH ORIFICES AND PIPES OF DIFFERENT CROSS SECTIONAL AREAS AND FORMS. The experiments we want trying with reference to the above, refer to danditions of air such as one finds in an induction system, that is, the pipes ought to be of somewhat the same proportions (i.e. diameter) as those used on the engine. You will find a good many general specimens of the whole subject in an American translation by Cox of Weissbach's Mechanics which we have in the D.O. I am writing this for fear you should be doing some experiments which have been done many times before, in fact, I should think we had better concentrate on exactly the type of orifice in which we are interested, and I should suggest that we made some models of valves, valve seatings, and valve passages. For instance, one might try the difference between a valve exactly like that on the Hawk with different openings, and a valve of the proposed size that we are going to use in the new twin valved engine. We could also find what benefit there is in resistance with different angles of the valve face, and different forms in the shape of the valve. I will not attempt to suggest any apparatus at the moment, but will leave it to you to make some suggestions. RR. R.R. 25M 23/6/17 (S) (L. 600) 'S' 952. G1114. | ||