Test results and issues with single valve shock absorbers.
| Identifier | ExFiles\Box 56\1\ Scan211 | |
| Date | 2nd August 1932 | |
| Hdy. {William Hardy} from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} X235. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 10/ADL 2.8.32. SINGLE VALVE SHOCK ABSORBERS Confirming our today's telephone message. We send you herewith indicator diagrams taken with the valve altered to N.Sch.3497. These seem to us to be good. The loss of load at low velocities is probably due to the excessive quantity of oil to the bearing feed, which is our present air vent. When we have the H.P. and L.P. load adjusted correctly, we shall proceed with tests to ascertain the minimum size of air vent that we can use, which will doubtless improve this characteristic. We have proved that neither the taper valve seat nor the large head to the valve only will silence the valve. It requires the combination to do any good. We have run up to a ball pin load of 200 lbs. without causing the valve to become noisy. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Print Hs. {Lord Ernest Hives - Chair} 685 attached. | ||
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).