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).
Noisy axle dampers and suggesting design improvements to prevent chatter.
| Identifier | ExFiles\Box 178\3\ img164 | |
| Date | 11th May 1932 | |
| COPY. HS{Lord Ernest Hives - Chair}/RM.{William Robotham - Chief Engineer} ) FROM R.{Sir Henry Royce} AP E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} ) (AT Le CanadelHenry Royce's French residence.) C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} BY.{R.W. Bailey - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} R4/M.11.5.32 Rec'd and despatched from WW. 20.5.32. X5510 J.3 AXLE DAMPERS. These are reported to be noisy. RM.{William Robotham - Chief Engineer} is good at this work, and will tell us if it is air in the damper that does not get away, or accumulates, or if it is the valve chattering on its seat. It is probably the latter, which he knows how to cure. It is such a likely thing to happen. I remember his mention of shrouded valves, and also I suggest - Only small hole for exit. This ought to be enclosed so as to get quite full of oil. This type of valve should be more manageable for chatter than the double valves of Delco, and also be more silent. You will notice in Delco that the gland is, if as shewn, very liable to leak oil - i.e. under very heavy intermittent pressure. We could easily get similar control to our one valve which was not under pressure. Why not fit a car up in this way? I have thought that perhaps the long face on the Bentley damper valve might have been adopted to prevent chatter. Another idea is to use a curved seat to form a shroud, and yet not jam. Bed hard where dark. R.{Sir Henry Royce} | ||