Performance graphs for a PH petrol pump, showing delivery rate vs pump speed under various air bottle and reservoir configurations.
| Identifier | ExFiles\Box 17\5\ Scan095 | |
| Date | 19th October 1931 | |
| L.E.C. 2907/9. P.H. PETROL PUMP 19-10-31 STANDARD TANK & PIPES. STROKE .250" ALL PASSAGES & PORTS OPENED OUT. PIN STOPS FOR VALVES. INITIAL SPRING LOADS - { UPPER SPRING 8.5 LB, LOWER SPRING 20 LB } DIAPHRAGM FABRICS 2 800" CTS {C. Trot Salt - Carburation} CAPACITY OF INTERGRAL AIR BOTTLE = .38 C.C'S DELIVERY PTS/HR. PUMP SPEED R.P.M. Graph 1: WITH 100 C.C. AIR BOTTLE DELIVERY PRESS. O LB/D" Graph 2: WITH 100 C.C. RESERVOIR DELIVERY PRESS O LB/D" Graph 3: WITH 25 C.C. AIR BOTTLE DELIVERY PRESS. O LB/D" Graph 4: WITH 25 C.C. RESERVOIR DELIVERY PRESS. O LB/D" Graph 5: WITH 8 C.C. AIR BOTTLE DELIVERY PRESS O LB/D" Graph 6: WITHOUT AIR BOTTLE OR RESERVOIR DELIVERY PRESS O LB/D" | ||
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).