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).
Technical memorandum describing the design of the J.3 petrol pump and drive.
| Identifier | ExFiles\Box 179\1\ img025 | |
| Date | 15th October 1931 | |
| ORIGINAL. S. FROM E.{Mr Elliott - Chief Engineer} C. to S. H.{Arthur M. Hanbury - Head Complaints} MS. J.{Mr Johnson W.M.} 3. PETROL PUMP & DRIV. EX/M15.10.31. x3060 We send you herewith LoC. 2966. dealing with the above. The pump chamber is the same as used on P. 2. but the actuating mechanism is naturally somewhat different, the push rod being carried through the engine somewhat horizontally to an eccentric on the camshaft, which eccentric is buried in one of the bearings. This bearing has to be different to the others but is still located by the tappet blocks. The stroke of the pump has been slightly reduced from P. 2. for the convenience of the design, but should be quite sufficient for the size of the engine. E.{Mr Elliott - Chief Engineer} | ||