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).
The E.A.C-1 induction system and experiments on the hot-spot.
| Identifier | WestWitteringFiles\K\November1923\ Scan55 | |
| Date | 14th November 1923 | |
| R.R. 403A (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/AC11/1614.11.23 REPORT ON THE E.A.C-1 INDUCTION SYSTEM AND EXPERIMENTS ON THE HOT-SPOT. The tests were carried out with a standard 40/50 HP. carburetter and silencer. In all the tests the carburetter was so adjusted to give the minimum petrol consumption which would maintain max. torque. So the figures given - which are the average of a number of tests - are a minimum, as it was found that by strengthening the mixture the amount of petrol precipitated also increased, as would be expected. The exhaust outlet from the hot-spot was free and not carried into the silencer. The silencer had the cutout closed and the engine ran at 590 r.p.m. full load, this being the lowest speed possible with the Froude Brake used. The tests come under the following sections:- (1) Distribution. (2) Performance of std. E.A.C. hot-spot. (3) Results of different types of hot-spot tested. (4) Comparison of the E.A.C. hot-spot of cast iron and aluminium. (5) Summary of results of tests. contd:- | ||