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 report on an extra cylinder lubrication oiling scheme, detailing oil distribution results.
| Identifier | ExFiles\Box 14\3\ Scan050 | |
| Date | 9th January 1930 | |
| From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} C. to E.{Mr Elliott - Chief Engineer} x7950 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/MJ.9.1.30. x7980 x7950 Extra Cylinder Lubrication. We have been doing some tests on the extra cylinder oiling scheme to N. Sch. 2742 using Amber A oil at shop temperature to approximate to Motorine C under cold starting conditions. Our results shew that the distribution is not very good, the central cylinders getting excess oil.. A larger distributing pipe will doubtless remedy the trouble. N. Sch. 2742. EXTRA CYLINDER LUBRICATION. Oil used :- Amber Gear "A". Temp 20°C. 25 lb/sq.in. High pressure Relief. No.4 Cyl:- 50 c.c's/2 min. 12 secs. = 22.7 c.c's/min, No.5 Cyl:- 50 c.c's/5 min 38 secs. = 8.9 c.c's/min, No.6 Cyl:- 50 c.c's/6 min 11 secs. = 8.1 c.c's/min. 3.5 lb/sq.in. Inter Press Relief. No.4 Cyl:- 25 c.c's/7 min. = 3.6 c.c's/min. No.5 Cyl.:- 6 c.c's/5 min. = 1.2 c.c's/min. No.6 Cyl.:- 5½ c.c's/5 min. = 1.1 c.c's/min. 1.75 lb/sq.in. Low Press Relief. No.4 Cyl.:- 8.5 c.c's/5 min. = 1.7 c.c's/min. No.5 Cyl.:- 3 c.c's/5 min? = 0.6 c.c's/min. No.6 Cyl.:- 2.5 c.c's/5 min. = 0.5 c.c's/min. We think that the supply will have to be drawn from the high pressure oil to ensure sufficient quantity getting on the cylinder bore during the few minutes running when we find seizure is liable to take place. | ||