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).
Oil consumption experiment on a Phantom test bench engine comparing standard versus upward sloping drain holes.
| Identifier | ExFiles\Box 16\1\ Scan188 | |
| Date | 9th May 1927 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/ACL. c. to BJ. Wor.{Arthur Wormald - General Works Manager} c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to BY.{R.W. Bailey - Chief Engineer} X741 Hs{Lord Ernest Hives - Chair}/ACL1/LG9.5.27. OIL CONSUMPTION EXPERIMENTS ON PHANTOM. x986 An oil consumption test has been made on the Phantom test bench engine in which the oil drain holes below the bottom scraper ring drilled in the std. way were compared with same sloping upwards. The test was made at 2000 r.p.m. and three quarter load. The oil pressure was 27 lbs/sq.in. and the temperature 60°C. The sloping upwards holes proved to have a slightly greater oil consumption than those in the std. - or downward - position using .9 pts/hr. compared with .7 pts/hr. for the latter. The oil measurements were made by the dry sump method we have previously employed for these tests and when the slope of the holes was changed - the original ones being plugged - care was taken not to remove the rings or any carbon which would be liable to influence the results. We are arranging to test the 'Perfect Circle' scraper ring. Hs{Lord Ernest Hives - Chair}/A.{Mr Adams} C. Lovesey. | ||