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).
New Phantom engine oil flow, comparing tests with 7 and 3 direct oil feeds.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan255 | |
| Date | 12th June 1925 | |
| R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/ACL/LG7.12.25. NEW PHANTOMCodename for PHANTOM I EXPERIMENTS: WITH 7 AND 3 DIRECT OIL FEEDS. We have carried out several experiments with the object of determining in what way the oil flow through the bearings was influenced by the number of oil feeds and again in turn how the discharge affected the oil consumption. The tests described here have been carried out on the test bench but at the same time we have been continually checking our test bench results by performances of cars on the road. For all the following tests - except where otherwise stated - standard pistons and plain concentric rings were used and in order to increase the relative accuracy with regard to consumptions, the same pistons and rings were used for all the E.A.C. bench tests. For the first test the oil consumption and oil flows through the bearings were taken for a new standard engine having of course the oil supplied directly to the whole of the seven bearings. The next operation was to repeat these tests with the oil fed directly to the three main bearings only - the three main bearings having had the oil groove continued right round the circumference in order that there should be a continuous feed to the intermediate bearings via the oil-ways in the crankshaft. The results of these tests showed that there was no appreciable alteration to either the oil flow on consumption and the following curves were obtained :- contd :- | ||