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).
Letter to E.A. Eastwood discussing a lubrication device, its potential issues, and comparing it to other systems.
| Identifier | ExFiles\Box 132\4\ scan0005 | |
| Date | 13th October 1934 | |
| x4355 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KW. 13th October, 1934. E.A. Eastwood, Esq., "Breydon", Beryl Road, Upton, WIRRAL. Dear Sir, Replying to your letter of the 8th October. We have already had a similar device brought to our notice by Mr. Skinner of the S.U. Carburetter Company. The scheme that you send us differs in that the full oil pressure is used to force the cold oil into the cylinder or induction pipe, whereas previously a return spring only was used for this purpose. We see no reason whatever why this scheme should not work provided the reservoir is made large enough to provide sufficient oil. In our experience it is necessary to carry oil from such a device to each cylinder bore and feed it into the cylinder near the lower part of each piston stroke. Cold, thick oil passed into the induction pipe is very difficult to distribute and is likely to cause plug fouling. The system of pipes is somewhat elaborate and for this reason we are at present favouring continuous lubrication by means of a hole from the connecting rod big end, as used on a number of American cars. We should be interested to know exactly how the device was adapted to the Hornet on which such good results were obtained, and the dimensions of the reservoir actually used. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||