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).
Explosions in the silencer and the effect of changing ignition plug types from Pognon to Bosch.
| Identifier | ExFiles\Box 1\3\ B001_X 93-page25 | |
| Date | 10th July 1912 | |
| R.{Sir Henry Royce} 475 (100 H) (X 896. 3-5-12) E.P. 1780. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two LINES). DEPARTMENTAL MEMO. This column is for Name of Person addressed. Mr Royce via Mr Barrington. DATE. 10/7/12 EP{G. Eric Platford - Chief Quality Engineer}31/T10712 RE EXPLOSIONS IN SILENCER. With reference to the above and Mr Royce's sheet of July 5th as to how the above is affected by Ignition plugs and regarding the point raised re experience of stopping explosions in the silencer on the marine engine car by changing from Pognon to Bosch plugs, We have not made any definite experiments with this engine, but when testing on the dynamometer we certainly had a lot of trouble with pre-ignitions which we found was due to plugs in the exhaust position but no difference was made at the time by changing over Pognon to Bosch type of plug. It is a fact that our present standard engines which are being turned out with Bosch plugs often have the fault of exploding in the silencer after the engine has been stopped. This sheet must be filed with the correspondence to which it refers. Handwritten notes: X93 Copy to Mr Royce & Mr Elliots. Then file in Carburettors. Stamped: 10 JUL 1912 | ||