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 delivery curves and performance tests for new Bentley oil pumps featuring helical gears for increased capacity.
| Identifier | ExFiles\Box 149\2\ scan0104 | |
| Date | 15th July 1935 | |
| FOR FILE. X 1265 15.7.35. Bentley Oil Pumps. LeC.4288 - Helical Gears - Increased Capacity. Attached are the delivery curves of the first four of these pumps to be made, with a standard pump curve added for comparison. These tests were taken at 75°C. against 25 lbs/sq.in. back pressure, these having been taken as a basis for comparison of Bentley pump performances. We have not any figures at 30°C., 30 lb/sq.in. to offer for direct comparison with the crankcase oil tube tests. Hs{Lord Ernest Hives - Chair}/W.Bell. | ||