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).
Diagram and description of the R.R. Hydraulic Damper arrangement and operation.
| Identifier | ExFiles\Box 28\1\ Scan093 | |
| Date | 22th June 1926 guessed | |
| -16- VI. THE R.R. HYDRAULIC DAMPER. KEY: A- HIGH PRESSURE END B- HIGH PRESSURE VALVE C- AIR RELEASE D- AIR VENT E- INTERMEDIATE LEVER F- FILLER PLUG G- LOW PRESSURE PORTS H- MAIN LEVER. J- CONNECTING TUBE K- RETURN PASSAGE. L- SUPPLY VALVES. M- PISTON N- LOW PRESSURE VALVE O- FILTER. P- LOW PRESSURE END. Q- CYLINDER BODY. R- AXLE. (a) Exact description of arrangement and operation. This shock damper consists essentially of a main lever H connected to the axle by means of a tube J.{Mr Johnson W.M.} This main lever is keyed to an intermediate lever E which is in turn coupled by links to piston M.{Mr Moon / Mr Moore} When the spring is compressed, the main lever H moves upwards, and in consequence piston M moves towards the low pressure end P of the cylinder. The oil at P is unable to escape via passage K, owing to the high pressure valve B being closed. It creates a pressure above the high pressure valve and forces any air in the system, which must of necessity collect at this point, through the air release C. When the pressure reaches a fixed amount, the low pressure valve N opens, allowing oil to flow through | ||