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).
Confirming a suggestion to use a single lip on a turbulent Phantom cylinder head for better flow.
| Identifier | ExFiles\Box 42\4\ Scan049 | |
| Date | 28th October 1926 | |
| To Hs.{Lord Ernest Hives - Chair} from E.{Mr Elliott - Chief Engineer} c. to BJ. X3867 E2/M28.10.26. RE. LIGHTER PHANTOM CYL. HEAD. X.8050 X.3867 This note is to confirm our suggestion to use one lip only on the turbulent head to give single flow turbulence. We have always had in mind that one lip only could be used, and that the opposite side of the head could be radiused, and that this might give a better effect than the pumping motion from both sides opposed. As you saw on your recent visit to WW. we are proposing to try a partly side stepped head later on, and a lip on the deeper side of this head will give almost complete Ricardo effect. E.{Mr Elliott - Chief Engineer} | ||