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).
Use of a cylinder liner for modifying engine compression between high and low compression pistons.
| Identifier | ExFiles\Box 35\2\ scan 233 | |
| Date | 14th June 1920 | |
| Hs.{Lord Ernest Hives - Chair} from BY.{R.W. Bailey - Chief Engineer} c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to Hm.{Capt. W. Hallam - Head Repairs} S.F.C. X.2748 COPY. BY1/P14.6.20. X.2748 CHASSIS - CYLINDERS. RE PACKING BETWEEN CYLINDER AND CRANKCASE. X 790 Referring to my previous correspondence under this heading, in reply to your memo pointing out that it would be desirable, from your point of view, to have a low compression piston and a high compression piston of such dimensions that no liner was required in either case, Hm{Capt. W. Hallam - Head Repairs}, has replied to me, stating that he is very strongly in favour of the liner in one case or the other, and EP{G. Eric Platford - Chief Quality Engineer}, is also strongly of the same opinion. At present the liner is fitted, as you are aware, to the low compression combustion, and by removing the liner a high compression engine can be produced. This certainly seems a desirable method of modifying from one type to the other quickly and cheaply, and is a scheme which has been in force ever since I have been at the Works. In view of this therefore I have think we should be very chary about modifying the position. BY.{R.W. Bailey - Chief Engineer} | ||