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).
Performance graph for the Vacuum Pump on the Super Sports Engine, plotting delivery and suction against engine RPM.
| Identifier | ExFiles\Box 40\4\ Scan287 | |
| Date | 1st September 1928 | |
| VACUUM PUMP. (SUPER SPORTS ENGINE). ENGINE No SS{S. Smith}-3. BORE = 1.125" STROKE = .800" PUMP RUNS AT HALF SPEED OF ENGINE. FUEL DELIVERY REQUIRED BY ENGINE (FULL THROTTLE) SUCTION OF PUMP FUEL SUPPLIED BY PUMP THRU' STANDARD AUTO-VAC. FUEL SUPPLIED BY PUMP THRU' STANDARD AUTO-VAC WITHOUT NON-RETURN VALVE IN SUCTION ELBOW. PETROL DELIVERY (PINTS PER HOUR) R.P.M. OF ENGINE. SUCTION OF PUMP. (INCHES OF MERCURY) V407. 1-9-28 STAMP: ROYCE LIMITED NT ROOM, 5 SEP 1928 DERBY. | ||