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).
Letter to Professor C.E. Inglis at Cambridge requesting research on measuring airflow through Bentley poppet valves to improve engine power.
| Identifier | ExFiles\Box 27\2\ Scan055 | |
| Date | 22th June 1933 | |
| Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}13/KT. June 22nd.1933. Proffesor C.E.Inglis, Scroope House, Cambridge. Dear Prof. Inglis, One of my jobs at the moment is to get more "horses" out of the new Bentley. (I hope you will swap your Delage for one [...]). One way of doing so that I am unable to measure here and that is by increasing the efficiency of the inlet valve port. I am therefore writing to you in the hopes that someone in Cambridge would enjoy measuring air flows through poppet valves in general, on Bentley cylinder heads in particular. I know it is cheek cadging assistance like this, but someone might prefer a little research work of this nature to measuring water passing over a V weir. I am also hoping that Wing Commander Don will accept my offer of models of the complete car to improve their streamlining in the wind tunnel. Do you know of any work that has been carried out on poppet valve efficiency? Yours sincerely, | ||