Proposed water circulation device for model 49GB, comparing it to Packard's system to avoid engine hot spots and radiator freezing.
| Identifier | ExFiles\Box 78\1\ scan0016 | |
| Date | 30th December 1916 | |
| COPY. X3863 RI/IB301216. To J. {Mr Johnson W.M.} from R. {Sir Henry Royce} 4117 c. to JCR. c. to Wor. {Arthur Wormald - General Works Manager} c. to EH. c. to EP. {G. Eric Platford - Chief Quality Engineer} c. to By. {R.W. Bailey - Chief Engineer} c. to Hy. {Tom Haldenby - Plant Engineer} c. to Na. {Mr Nadin} December 30th 1916. COPY RE PACKARD CARS AND WATER CIRCULATION. With reference to the attached, owing th similar trouble with 49GB, I had schemed a somewhat similar device without knowing what Packard was doing. My device is to stop and start the fan so as to keep the water up to a given temperature, but keep the circulation at full speed, and so avoid hot places in the cylinders, and frozen parts of the radiator. This I fear would happen if the circulation was checked, as in the Packard scheme. You will remember that we have long suggested stopping off from 30% to 60% of the radiator in winter, by a plate at the top and bottom of the radiator. This is a thoroughly simple, sound, and practical way of meeting the case. R. {Sir Henry Royce} 2847 | ||
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).