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).
Design, materials, and silencer for the Phantom II exhaust-heated induction pipe.
| Identifier | ExFiles\Box 13\3\ 03-page172 | |
| Date | 21th December 1929 | |
| X7080 R.{Sir Henry Royce} from E.{Mr Elliott - Chief Engineer} C. SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} Hy.{Tom Haldenby - Plant Engineer} E2/M21.12.29. PHANTOM II EXHAUST HEATED INDUCTION PIPE. It will be remembered that designs have been completed for the above as far as the induction pipe and its connections to the cylinder are concerned, two schemes Lec 2766 and 2767 - having been sent through at the beginning of this month showing alternative means of silencing the jacket noise. The Exp. Dept. are of the opinion that these exhaust heated uptakes should be in cast iron on account of the high temperature experienced at times such as when testing on the dynamometer. It is desired that the possibility of using aluminium piston alloy should be considered. Regarding the silencer to be used on the outlet pipe from the jacket, we think this might be smaller than the experimental model, say 12" long x 2.5" dia. instead of 18" long x 2.5" x 4" oval. It might also be of the simplest possible concentric design for such a simple job, as the gas will already have been largely silenced and cooled in the jacket. Mr. Day has this silencer in hand as it is fixed under the chassis. E.{Mr Elliott - Chief Engineer} | ||