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).
Visit to the Solex Carburetter Co. regarding carburetter 'freezing up' issues and testing methods.
| Identifier | WestWitteringFiles\S\September1928-October1928\ Scan160 | |
| Date | 16th October 1928 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to BJ. Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} RG.{Mr Rowledge} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG16.10.28. ORIGINAL PARIS SALON - 1928. X3609 CARBURETTERS. We went over the Works of The Solex Carburetter Co. in conjunction with whom we are doing some development work for carbu-retters. We asked them if they had experienced 'freezing up' with aero carburetters. They stated that they had dropped aero Carburetters and were only just taking them up again. They were, however, very emphatic that they had never got any reasonable results from pre-heating the fuel before metering because any appreciable rise above normal temperature was sufficient to effect the metering with a volatile fuel, and a large rise would be necessary to produce any result with regard to freezing up. Their own view appeared to be that exhaust heating locally as far as possible where the trouble occurred, would be the best solution to the difficulty, but naturally, as we pointed out to them, this becomes an impractical proposition with the carbs. on the remote side of the supercharger. For synchronising altitude control on a multi carburetter engine Solex recommend a single chamber, the depression in which is regulated by a single valve, and then distributed to the carbs. The Solex Co. have developed a very practical testing laboratory under the direction of Mr. Norton, an American with wide experience of carburetters in the States. It is essentials it consists of a large balanced air bell about 8 ft. dia. and 10 ft. deep, a revolution recorder, a stop watch and a vessel contd :- | ||