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 performance variation of a Delco Damper with temperature at high and low pressures.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan203 | |
| Date | 9th January 1931 guessed | |
| SHEET V VARIATION IN PERFORMANCE WITH TEMPERATURE DELCO DAMPER. AXLE VELOCITY .75 FT/SEC STROKE 4" LOW PRESSURE OIL TEMP 20°C MEAN BALL PIN LOAD 29.2 MAX. BALL PIN LOAD 33.0 LBS. PRESSURE 100 LBS/D" OIL TEMP 67°C MEAN BALL PIN LOAD 24.6 MAX. BALL PIN LOAD 30.7 0°C 4" STROKE PRESSURE 100 LBS/D" OIL TEMP. 25°C. MEAN BALL PIN LOAD 215 MAX. BALL PIN LOAD 308 OIL TEMP. 0°C MEAN BALL PIN LOAD 408 MAX. BALL PIN LOAD 500 LBS. OIL TEMP. 65°C MEAN BALL PIN LOAD 121 LBS. MAX. BALL PIN LOAD 175 LBS. HIGH PRESSURE 4" STROKE N° OF OSCILLATIONS PER MIN. 70 DELCO VALVES FITTED 2G. G4 DELCO LOVEJOY OIL | ||