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).
Test results for a Feuerheerd oil pump at various RPMs and pressures.
| Identifier | ExFiles\Box 149\2\ scan0017 | |
| Date | 19th December 1927 | |
| →FEUERHEERD OIL PUMP← TEST A:- AT 100 R.P.M. 100 R.P.M AT 10 LB/□" PRESSURE, 1 GALL IN { 4 MIN 50 SEC { 4 MIN 40 SEC 100 R.P.M " 40LB/□" " 1 " " { 4 MIN 45 SEC { 4 MIN 55 SEC 100 R.P.M " 60LB/□" " 1 " " { 4 MIN 56 SEC { 4 MIN 59 SEC 20°C. 100 R.P.M " 100 LB/□" " 1 " " { 4 MIN 53 SEC { 4 MIN 50 SEC TEST B:- SPEED AT WHICH PUMP WILL JUST DELIVER AT 100 LB/□" PRESSURE 80 R.P.M TEST C:- SPEED AT WHICH PUMP WILL LIFT OIL (MOTORINEC) 3 FT 8 1/2 INS [FROM FLOOR LEVEL TO CENTRE OF PUMP INLET PIPE] WITHOUT PRIMING. 18°C 80 R.P.M. IT CONTINUES TO LIFT AT 50 R.P.M. TEST D:- CHECK DAIMLER RESULTS AT 500, 1000, AND [cut off] [20°C] 500 R.P.M. 10 LB/□" PRESS: 1 GALL: IN 1MIN 15 2/5 SEC 40 LB/□" " 1 " - 1MIN 16 3/5 " 60 LB/□" " 1 " " 1MIN 17 3/5 " [24°C] 100 LB/□" " 1 " " 1MIN 16 " | ||