Letter from The Zenith Carburetter Co. regarding induction pipe design, suggesting a saddle type jacket and a 'hot spot'.
| Identifier | ExFiles\Box 122\1\ scan0200 | |
| Date | 12th June 1935 guessed | |
| THE ZENITH CARBURETTER CO. Limited. Sheet No....3... ... pipe as possible by dispensing with any vertical riser, and by keeping the induction pipe of constant diameter throughout the whole of its length, whereby the gas speeds will be equably maintained. You will notice that we have suggested a saddle type jacket round the pipe immediately under the carburetter, which jacket will be fed with exhaust gas through pipe of something like 3/4" diameter. It is desirable that the region of the pipe immediately underneath the carburetter should be as thin as possible. This has often been achieved by inserting a very thin plate into the casting in order that the heat may penetrate the material of the "hot spot" as quickly as possible. We shall be most pleased to be of any service possible and in the meantime, We remain, Yours faithfully, THE ZENITH CARBURETTER CO. LTD., A.E. Palmer AEP/KET. | ||
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).