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).
Departmental memo discussing methods to reduce vibrations in a six-cylinder engine.
| Identifier | ExFiles\Box 25\3\ Scan002 | |
| Date | 2nd November 1910 | |
| R.R. 348A (100 H) (M 42. 10.2.10). E.{Mr Elliott - Chief Engineer} P. 6019. DEPARTMENTAL MEMO. Issued: 2nd November 1910 This column is for Name of Person addressed. C.J. X634 DATE. 2/11/10 6-cylinder question. R16/D21110 Referring to the six-cylinder question, we have two means of keeping the vibrations small, one is the central flywheel which may be possible with a long stroke engine, the second is the front damper flywheel, (with friction attachment); and to stop this from having any effect on the camshaft wheels, we have the spring drive when the gears are situated at the front, or if driven from the flywheel end of the engine, no spring drive is necessary. To keep the vibrations to a minimum, which is the best of all solutions, we have the present camshafts of half the diameter of the cylinder with the short stroke, and two-thirds the diameter of the cylinder with the long stroke, which equals 2 2/3"; - and lastly the large camshaft. During the considerations of the difference between the White Knave, which This sheet must be filed with the correspondence to which it refers. | ||