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).
Page 2 of a report discussing engine cooling, comparing valve types and predicting the widespread adoption of oil coolers.
| Identifier | ExFiles\Box 131\1\ scan0091 | |
| Date | 29th March 1933 | |
| - 2 - E.4/HP.29.3.33. they are compelled to do this even without running at very high revolutions by virtue of the fact that the sleeve valve engine is likely to do more of its cooling through the oil than the poppet valve type. The new Buick's are all fitted with a matrix type of cooler in which the circulating water is used as the cooling medium. This device works very well, but any failure due to leakage might have disastrous effects in mixing the water and the oil before it could be detected. We mention these two examples to show that the fitting of an oil cooler is not abnormal, and we think it is going to become quite a regular feature in some form or other of standard car practice; E.{Mr Elliott - Chief Engineer} | ||