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).
Query regarding oil cooler failures and seeking advice on the best matrix design for maximum heat dissipation.
| Identifier | ExFiles\Box 149a\3\ scan0155 | |
| Date | 7th January 1936 | |
| -2- We should like to know (1) whether these results are borne out by your test figures, (2) whether the Mark VI matrix as described above represents the best matrix which you have, and (3) what you consider to be the best type of matrix to give the maximum heat dissipation for a given frontal area with a minimum depth of 84 m.m. Finally, with regard to our troubles with oil cooler failures, all our coolers up to now have been made using flat side and end plates with D shaped tubes as shown on attached sheet, and the failures have occurred along the seam between the tubes and the plates. We are therefore proposing to use hexagonal ends to the tubes and a crinkled plate construction (see sketch) as used on your Viscon coolers. An early reply would be very much appreciated. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||