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).
25 HP flywheel vibration and the use of balance weights.
| Identifier | Morton\M13.2\ img122 | |
| Date | 19th October 1931 | |
| γ ORIGINAL To R.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c. to Ry. -------------------- Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}S/KT.19.10.31. -------------------- X.5300. X.634. X.5010. 25 HP. FLYWHEEL VIBRATION & BALANCE WEIGHTS. Continuing our report Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}6/MJ.5.10.31. in which we stated that, with a thin flange flywheel and Chrysler balance weights giving full balance, (i.e. crankshaft and big end), the flywheel vibration was entirely absent, we have now reduced the thickness of these weights to balance 2/3 of the total out of balance. These weights therefore, now balance the crankshaft only, and with them the flywheel vibration is still absent. We have shown previously that the flywheel is prevented from vibration by No.12 weight next to the flywheel, this weight being identical to both the Chrysler and the 8 weight scheme. We therefore expect similar results from the thin flywheel and 8 weight scheme fitted to the China 10,000 miles test. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||