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).
Methods for heating the carburation system for the 40/50 HP chassis, referencing American car designs.
| Identifier | Morton\M22\ img270 | |
| Date | 3rd January 1921 | |
| R.R. 285A (100 T) (S.H. 159. 11-8-20) G 28 x4212 To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/TMW. Hs{Lord Ernest Hives - Chair}/TMW2/LG3.1.21. X.4305. X.421.2 X.1692. RE HEATING OF CARBURATION SYSTEM. 40/50 HP. CHASSIS. With reference to the first paragraph in your E6/G21.12.20. we are obtaining some bad petrol to use in conjunction with very hot water. With regard to the second paragraph, we are pushing along with an exhaust gas jacket on the tee joint of the induction manifold. So far it is giving good results and we are making a better fixture. We send you herewith blue-print of the Hupmobile "hot spot" which is quite the best thing in this direction we possess on any of the American cars. It will be noted that there is also a sketch of the Marmon method of using exhaust gas jacketting which will be seen on the car arriving at W.W. We do not think the position as good as the Hupmobile as undoubtedly, the right spot is the tee joint where the unvaporized spirit impinges, and we have adopted this principle on the standard 40/50 engine as Mr. Royce suggests. Hs{Lord Ernest Hives - Chair}/TMW. | ||