Performance graph of an 'Autopulse' electric petrol pump showing delivery rate versus head at various operating voltages and suction heads.
| Identifier | ExFiles\Box 41\1\ Scan017 | |
| Date | 12th August 1926 | |
| Note. Voltage variation during test about .25 volt. APPROXIMATE DELIVERY OF "AUTOPULSE" ELECTRIC PETROL- PUMP w.r.t. VARYING DELIVERY HEAD AND APPLIED OPERATING VOLTAGE AND FOR TWO SUCTION HEADS ——— 46” SUCTION - - - 22” SUCTION DELIVERY [GALLONS PER HOUR] 15 volts 12 volts 9 volts AHR 12.VIII-26 E.P.C. | ||
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).