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).
Twin valve shock damper scheme and related issues with dirt.
| Identifier | ExFiles\Box 121\1\ scan0182 | |
| Date | 8th December 1939 guessed | |
| I think that the shock damper twin valve scheme will take some beating both for simplicity of drilling & jigging. The load on the valves should be sufficient to prevent sticking. We have never seen by lumps of dirt causing sticking of the main valves on BV front dampers although they used to block up the old type of leak holes. The trouble was all due to fine dirt between the sleeves of the | ||