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 crankshaft damper and spring drive for the Japan 3 project.
| Identifier | ExFiles\Box 103\3\ scan0028 | |
| Date | 15th January 1931 | |
| X5010 R.{Sir Henry Royce} FROM E.{Mr Elliott - Chief Engineer} E1/M15.1.31. Copy to SG.{Arthur F. Sidgreaves - MD} " WCR. " HS.{Lord Ernest Hives - Chair} " BY.{R.W. Bailey - Chief Engineer} JAPAN 3. - CRANKSHAFT DAMPER AND SPRING DRIVE. X.5010. X.5020. HS.{Lord Ernest Hives - Chair} has been telling us of a crankshaft damper made in the states for tenpence. We can scarcely hope to equal this and at the same time maintain our required standard of quality. We can however by selection of the simpler features of our more recent schemes produce a design in which most of the milling machine work is eliminated. At the same time this drive appears to require very much less room in front of the engine for pulling down which is the second objective we are after. The rough sketch attached shews the design on which we are working. It is a simple auto-friction damper of the minimum inertia type driven by central flexible shaft. Our last scheme for P. 2. had floating auto-friction damper flywheels and separate friction for damping the crankshaft pinion. Derby seem to think that the auto-friction will not be needed with the stiffer crankshaft on Japan 3. E.{Mr Elliott - Chief Engineer} | ||