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).
Piston knock issues and potential solutions involving cylinder skirts.
| Identifier | ExFiles\Box 66\1\ scan0091 | |
| Date | 22th April 1926 guessed | |
| contd :- -8- The gudgeon pin fixing is more satisfactory than standard. The piston can be a good fit when cold and at the same time be quite free under high temperature conditions, due to greater flexibility. PISTON KNOCKS. The trouble has been considerably reduced by employment thicker cylinder skirts as indicated in diagram 2. We have been unable to measure any deflection of the skirts and the knock is thought to be due to resonance of these skirts. Further information will be available after the tests of the several sets which are being prepared for cars. Hs{Lord Ernest Hives - Chair}/A.{Mr Adams} C. Lovesey. [Watermark text: 1804 MADE AT CROWLEY] | ||