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 of a vent pipe to prevent oil passing from the crankcase to the cylinder.
| Identifier | ExFiles\Box 16\1\ Scan101 | |
| Date | 11th November 1925 | |
| To C.J. from Hs.{Lord Ernest Hives - Chair} +740 Hs{Lord Ernest Hives - Chair}8/LG13.11.25. CJ3/E5.11.25. Percy F.{Mr Friese} Chaplin Esq. +8980 In the design of the vent pipe between the crankcase and carburetter, precautions are taken to prevent oil making its way into the cylinder by this means. We have carried out tests and have not been able to find that a measureable amount of oil gets into the cylinder, via the breather connection between the crankcase and the carburetter. We use a similar fitting on the 20 HP. and on the Silver Ghost. Hs.{Lord Ernest Hives - Chair} | ||