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).
Modifications to hydraulic shock dampers regarding valve chattering, oil filters, and material choice.
| Identifier | WestWitteringFiles\O\January1926-March1926\ Scan74 | |
| Date | 22th February 1926 | |
| TO BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} Copy to CJ. HS.{Lord Ernest Hives - Chair} ORIGINAL DAL/M22.2.26. HYDRAULIC SHOCK DAMPERS. X235 We send herewith N. scheme 2145. shewing the modifications which R.{Sir Henry Royce} has suggested to overcome the valve chattering, and to prevent dirty oil getting into the working parts. We suggest that as the arrangement shewn on fig. 1. is R's latest instruction, you should work to that instead of fig. 2., which is based on an earlier memo. We also think that the filter in the bottom of the body of the shock damper instead of the filter at the oil filler is likely to be preferred. We have indicated a modification to the piston which eliminates some of the air space above the low pressure relief valve, and we have shewn an increase in the size of the links to deal with the fracture just reported, though we feel sure that the latter is due to the use of mild steel instead of nick-el steel. DA.{Bernard Day - Chassis Design} [STAMP] RECEIVED AH 1 FEB 1926 | ||