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).
Diagram showing the eccentricity of valve passages for the 'Delco II' project, viewed from the high-pressure end.
| Identifier | ExFiles\Box 28\1\ Scan197 | |
| Date | 16th May 1939 | |
| SHEET 4 ¢ MAIN SHAFT 5.5° CYLINDER BORE 25° LOW PRESSURE PASSAGE LARGE HOLE .282 DIA SMALL " .250" HIGH PRESSURE PASSAGE DIAGRAM OF ECCENTRICITY OF VALVE PASSAGES. VIEWED FROM HIGH PRESSURE END. "DELCO II" MARGIN | ||