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 the development of an air silencer for the 20/25 HP carburetter.
| Identifier | ExFiles\Box 5\4\ 04-page256 | |
| Date | 25th October 1930 | |
| x5080 By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/AJL. Hs{Lord Ernest Hives - Chair}/AJLL/AD25.10.30. CARBURETTER AIR SILENCER 20/25 HP. We are anxious to develop quickly an air silenced carburetter for the 20/25 HP. car on the same lines as that recently standardised for P.II. LeC.1467 was issued some years back but this, of course, was for the small carburetter on the 20 HP. cars. Will you please issue a scheme similar to P.II. as quickly as possible. It is important that the maximum possible area be obtained in the air valve port cowling to avoid loss of power. It will be remembered that the original P.II. carburetter had to be enlarged at this point, we wish, if possible, to avoid having to do this on the 25 HP. carburetter. The actual silencer itself should be a scaled down replica of that used on P.II. cars, the same type of crankcase breather should also be incorporated. Hs{Lord Ernest Hives - Chair}/AJL. | ||