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).
Note on oil leakage past the piston ram and the function and limitations of scraper rings.
| Identifier | ExFiles\Box 35\2\ scan 182 | |
| Date | 1st January 1920 | |
| Contd. -3- Hs{Lord Ernest Hives - Chair}3/L.H.1.1.20. leaks past the.ram is drained into the back of the piston without getting on to the cylinder walls. All forms of scraper rings will only deal with a certain 2uantity of oil; if there is more oil than that it will certainly work up into the com-bustion chamber. Hs.{Lord Ernest Hives - Chair} | ||