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).
Research notes on main bearings, internal combustion turbines, and other engine components.
| Identifier | ExFiles\Box 161a\1\ scan0089 | |
| Date | 16th March 1940 guessed | |
| (4) (D) - MATERIAL AND MECHANICAL RIG RESEARCH. (1) MAIN BEARINGS. Lr{Mr Ellor}/Psn outlined the position of investigation in hand on the various rigs, to determine the mechanism of failure of tin bearings. The results obtained are very interesting and a final conclusion should be arrived at shortly. Alternative bearing materials being investigated include 10% Silver, 4% Silver and Vandervell tri-metal bearings. (2) MAGNESIUM. No discussion - to be discussed at special meeting on 5th March. (3) VULTURE CONNECTING ROD BOLTS. No progress to report since the last meeting. (4) BIG END BEARINGS. ) PLASTICS. ) Nothing new to report. VALVE MATERIALS. ) SLEEVE MATERIALS. ) (E) - INTERNAL COMBUSTION TURBINE AND GENERAL. (1) I.C.T. Gr.{George Ratcliffe} outlined the position of work which includes proposals for an internal combustion turbine of a power in excess of the Vulture and utilising a shrouded blower propellor of approximately 5' 6" diameter instead of a conventional propellor the size of which would have to be approximately 24' diameter to deal with the turbine power. The main problems to be overcome are mechanical and would appear to be:- (1) Blade vibration at the low pressure end. (2) Bearing problems. These could be investigated initially on a test rig which would have to be arranged to simulate the effect of aerobatics on the blades and their bearings. Hs.{Lord Ernest Hives - Chair} emphasised the importance of studying the production problems associated with the manufacture of such a unit and suggested making wooden models of the turbine blades. Investigation proceeding. (2) EXHAUST PROPULSION. Gr{George Ratcliffe}'s note on the utilisation of exhaust power was only very briefly discussed. E/Lid.{A. J. Lidsey} | ||