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).
Carburetter icing, hot water jacketing, and comparing carburetter designs and supercharger configurations.
| Identifier | ExFiles\Box 42\3\ Scan095 | |
| Date | 20th March 1927 | |
| To RG.{Mr Rowledge} To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. Nor. ROLLS-ROYCE LIMITED DERBY X3841 R3/120.3.27. FP{F. Potts}-10 CARBURETTERS & SUPERCHARGER. X.3933 X.4550 X.3841 It would seem that we should hot water jacket the carburetters in some way near enough to the emulsion pipe as to reduce the risk of ice forming in the passages. At first I imagined we might form the passages so that this air only is warmed. Generally one thinks the throttle valve should be warmed. I cannot understand how Claudels can get equally good results with their low level petrol. E.{Mr Elliott - Chief Engineer} explains, but I find difficulty in believing that the scheme they suggest works out well in practice. Let Mr. Lovesey test that they made for us. It is difficult to know why our engine wants different carbs. to Curtiss, unless valve timing is very different and somehow this affects it. I cannot see how the mixture knows what pistons etc. are used. Regarding the supercharger, I believe there is much in favour of carbs. after blower. I consider the difficulties of petrol feed are not insurmountable with petrol pump. R.{Sir Henry Royce} | ||