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).
Report assessing a new automatic carburetter with no sliding parts, detailing its performance on Ford and Buick vehicles.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page293 | |
| Date | 26th February 1919 | |
| R.R. 235a (500 T) (S.D. 408. 28-4-17.) Bm. 2/156/13. Contd. -2- EH1/LG26.2.19. and allow air to pass through the coils. Except for the small quantity of air which passes by the annular passage, the whole of the air which is supplied to the engine passes through this spring. Using a spring for this purpose is not novel. The Brown & Barlow have a similar arrangement for extra air. The most unusual part about the carburetter is that there is no throat. The jet stands up in a big chamber. The claims which they make for this carburetter are:- 1. Automatic Carburetter with no sliding parts. 2. Better Atomisation. 3. The level of the petrol in the jet is unimportant. To substantiate their claims as regards being able to obtain better petrol consumption, they shewed me some reports of tests taken on a "Ford" Car where they had improved the consumption on the car from 18 M.P.G. to 32 M.P.G. They shewed me a Carburetter fitted to a 6-cylinder "Buick". The Buick induction system is very nice. It has a six cylinder self-draining manifold with one carburetter. The mixture travels upwards right into the cylinder. The whole of the air which passes into the carburetter was drawn off of a muff on the exhaust pipe. The car on the road behaved fairly well although until the engine got hot, the carburation was not good. The slow running was fairly good. The car would run on top gear at 6 to 7 M.P.H. My own opinion of the carburetter after having examined it and seeing the "Buick" Car running with it, is that it does not shew any outstanding advantages over any other (Contd) | ||