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).
Graph showing the relationship between exhaust valve/gas temperatures and engine speed under different compression ratios.
| Identifier | ExFiles\Box 150\1\ scan0158 | |
| Date | 11th June 1936 | |
| CURVES SHOWING THE RELATION BETWEEN EXHAUST VALVE AND EXHAUST GAS TEMPERATURES AND ENGINE SPEED TEMPERATURE MEASUREMENTS ON NO. 1 EXHAUST VALVE (1) 4.25 COMP. RATIO WITH 10" MERCURY MANIFOLD PRESSURE (2) 5.55 COMP. RATIO WITH 10" MERCURY MANIFOLD PRESSURE (3) 5.55 COMP. RATIO STD. ENGINE TEST CONDITIONS: A.{Mr Adams} TEMPERATURES PLOTTED ARE THE AVERAGE VALUES OBTAINED OVER AN AIR-FUEL RATIO RANGE FROM 10 TO 1 - 16 TO 1. B. FULL THROTTLE C. MAXIMUM POWER SPARK ADVANCE EXHAUST GAS TEMPERATURE EXHAUST VALVE TEMPERATURE Y-AXIS: TEMPERATURE, °F X-AXIS: ENGINE SPEED, R.P.M. ETHYL GASOLINE CORPORATION, ENGINEERING LABORATORY SUPERCHARGE: BUICK 1936-40: DETROIT TEST NO. 3SD-26 CURVE SHEET NO. EUGENE DIETZGEN CO. NO 346 | ||