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).
Test report on the induction system drainage scheme for the 25/30 HP Engine.
| Identifier | ExFiles\Box 103\4\ scan0143 | |
| Date | 22th January 1936 | |
| To E.{Mr Elliott - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to By.{R.W. Bailey - Chief Engineer} 25/30 HP. Engine. Induction System. In conjunction with our programme as laid out in our memo. Hs{Lord Ernest Hives - Chair}/CTS.{C. Trot Salt - Carburation}24/KW.19.12.35. Tests have been carried out to obtain data for the induction pipe drainage scheme, to be used with the Stromberg downdraught carburetter. Parts under Test. Ex.21111 Induction Pipe, incorporating :- Ex.21126 Drain Body) Ex.21048 Union ) Drainage assembly. Ex.21047 Ball ) Test No.1. Object. To determine the effect of a well in the centre chamber on distribution. Result. No effect on general running can be noticed. See distribution curve No.1. Test No.2 Object. To determine the efficiency of the drainage scheme in dealing with the Stromberg flooding characteristics. Note. This test is divided into two parts - (1) The maximum possible delivery from the Stromberg carburetter, under the WORST flooding conditions. Result. With float chamber needle valve held off its seat. Delivery (free flow) from main discharge = 18 pts/hr. (2) Maximum flow that the well and drain will take, without letting petrol overflow into the inlet ports = 26 pts/hr. | ||