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).
Schemes for improving carburation by increasing the temperature of the throttle valve and carburetter.
| Identifier | ExFiles\Box 24\5\ Scan119 | |
| Date | 17th December 1925 | |
| To Hs.{Lord Ernest Hives - Chair} } To BY.{R.W. Bailey - Chief Engineer} } FROM R.{Sir Henry Royce} c. to CJ. BJ. RG.{Mr Rowledge} Mr. Claremont. X766 R1/M17.12.25. RE. CARBURATION. X.766 X.8080 X.8230 I have suggested a scheme for increasing the temperature of water to the throttle valve and carburetter, which is found to be so beneficial, by taking the hottest water leaving the cyl. head, to the bottom of a superheater round the exhaust pipe and there increasing its temperature over and above the hottest of the cooling water, even to making steam that would condense in the carburetter jacket, and if possible raise this as near as possible to 100°C. This seems rather a valuable idea unless Mr. Hives finds that equally good results can be obtained by heating the air going to the carburetter (in cold weather), and only heating the throttle jacket to the usual water temperature of about 75°, which is about the limit of the present and usual arrangement. This idea should be tested temporarily (gas burner and pipe) at once, as if found promising it should be protected at once - English provisional. We are hoping to find an induction pipe less dependent upon temperature - i.e. equally good distribution with less heat. R.{Sir Henry Royce} | ||