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).
Requesting a drawing for an alteration to the Bentley V automatic carburation system to improve fuel distribution.
| Identifier | ExFiles\Box 99\1\ scan0049 | |
| Date | 12th May 1939 | |
| 408 To Da.{Bernard Day - Chassis Design} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}2/JH.12.5.39. BENTLEY V AUTOMATIC CARBURATION. We have been carrying out tests on the above with a view to improving the distribution to the main induction pipe, from the starting carburetter. The present existing scheme shows one connection from the starter to the centre of the pipe. Under extreme cold conditions, this causes the centre cylinders to be over rich. A big improvement results from separating this single connection to give two separate feeds, one to each carburetter. Will you please produce a drawing incorporating this alteration which should take the form of a cast in channel. running parallel with the main pipe. The bore of the channel should be .375" with the existing size of connection from the starter. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||