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).
Summary of issues encountered and work completed on a new shock damper and governor control system.
| Identifier | ExFiles\Box 179b\2\ img207 | |
| Date | 16th December 1932 | |
| -2- Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}2/MA.16.12.32 Cont'd.{John DeLooze - Company Secretary} Our main concern now is to get the new type of shock damper as silent and free from oil loss as our existing standard fitting. A brief summary of the work done on the governor control so far is as follows. (1) Trouble with the governor release valve, over come as shewn in sketch B. and by W.W. Scheme N.Sch.3593. (2) Restriction due to the Banjo connections between point A & B. Overcome by larger connections or a different type. (3) Lag in building up between the governor unit and the shock absorbers, reduced by "bleeding" the lines and a thin fluid. (4) Shock absorber ball pin load does not follow pressure rise in governor immediately and proportionately i.e. the ride does not immediately become soft when speed is reduced. It was found that the cup leathers are stickey in operation Hs.{Lord Ernest Hives - Chair}795, petrol pump diaphragms work better and we shall have some sylphons on - test shortly. We are sending Hdy.{William Hardy} a more detailed description of the tests made and the figures taken. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||