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).
Telephone conversation about engine design specifications for oil flow, sump connections, and induction system.
| Identifier | ExFiles\Box 135\3\ scan0035 | |
| Date | 28th October 1931 | |
| E.{Mr Elliott - Chief Engineer} c. Hs.{Lord Ernest Hives - Chair} c. BY/CS. c. BY/Cgh.{W Clough} c. BY/SS.{S. Smith} X5190. BY.3/G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 28.10.31. X.5190. X.5070. TELEPHONE CONVERSATION WITH VV. 27.10.31. JAPAN 111. The following information was given to me over the telephone by E :- 1/- OIL FLOW FROM RELIEF VALVE. The overflow from the oil pump is discharged through the relief valve into the skew gear case, which contains the gears to drive the oil pump and the distributor. From here the flow passes into the cross drive shaft and then into the camshaft casing, from whence, by holes in the crankcase walls, it returns to the sump. It is important that we produce a number of holes in the webs of the cross shaft bearings, sufficient to carry the oil, without undue restriction, back to the crankcase. 2/- OIL SUMP CONNECTION HOLES. These are shown low down, quite close to the floor. They must be raised so that the bottom of the hole is ¼" above the floor level to allow a space for the sediment to deposit and collect. 3/- INDUCTION SYSTEM. At present arrangements have been made for using two carburetters and two passages through the head are provided to pass hot gases from the exhaust round the carburetter for warming up the latter. In addition to these two, E.{Mr Elliott - Chief Engineer} wants us to provide a similar opening in the middle of the head which could be used for a single carburetter, as he is inclined to think that we shall come to a single carburetter scheme later. We would then blank off either the single or the two exhaust connections through the head according to whether we were using two carburetters or one. BY.{R.W. Bailey - Chief Engineer} | ||