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).
Potential improvements to the design of split-type pistons.
| Identifier | ExFiles\Box 77\3\ scan0037 | |
| Date | 1st December 1919 | |
| To BN.{W.O. Bentley / Mr Barrington} from EH. c. to DA.{Bernard Day - Chassis Design} c. to BY.{R.W. Bailey - Chief Engineer} c. to EP.{G. Eric Platford - Chief Quality Engineer} ----------- EH3/LG1.12.19. S-------- X.3732. SPLIT TYPE PISTONS. --------------------- As it is possible that a considerable number of split type pistons may have to be fitted to our chassis because of the fact that we have nothing else better ready, I consider that the design of the pistons should be gone over to see whether it could be improved. The present pistons we are using was designed as an ordinary standard trunk piston and thefact that it was going to be split, was not considered at all when it was originallydesigned. One thing we should like to get rid of on the split type pistons, is the band between the circumferential slot and the oil relief annulus. This could be done very easily with a slight modification to the casting. The slot would then actually come in the oil relief annulus. Another thing we should like to try is, pistons with various thicknesses of metal on the non-pressure side. EH. eh R.R. 255 A (100 T) (S.E. 576. 16-4-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2254 | ||