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).
Comparative test results for a reduced volume Enot's petrol filter against a standard filter.
| Identifier | ExFiles\Box 135\3\ scan0053 | |
| Date | 8th August 1932 | |
| X4037 X7460. x5460 REDUCED VOLUME ENOT'S PETROL FILTER. This filter specially supplied by Enot's, had a petrol volume of 30 ccs. as against the standard volume of 80 ccs. When tested in conjunction with an Lec. 2961 petrol pump having .250" stroke, and 1/4" dia. suction pipes, the following comparative results were obtained: | | Secs. Initial pumping time | Delivery pts/hr at 1750 prpm. | |---|---|---| | | 20 prpm. | 50 prpm. | 75 prpm. | | | Suction Pipe connected direct to pump. | 61 | 33 | 18 | 109 | | Special Enot's 30 cc filter. | 80 | 45 | 27 | 102 | | Standard 80 cc. filter. | 107 | 53 | 27 | 100 | W. Fell. | ||