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).
Test report on the performance and filtering effectiveness of an 'Auto-Klean' oil strainer.
| Identifier | WestWitteringFiles\U\January1930-April1930\ Scan129 | |
| Date | 5th April 1930 | |
| To. R.{Sir Henry Royce} From Hs{Lord Ernest Hives - Chair}/ChP. (Held up). C. to SG.{Arthur F. Sidgreaves - MD} ToT. C. to PS. L. C. to IV. Ds. ORIGINAL "AUTO-KLEAN" OIL STRAINER. We have tested the above oil strainer to ascertain the quantity of oil it will pass for a given pressure drop across it. The results are tabulated below - COLD OIL. Pressure Drop lbs/sq.ins. | Flow Pts/hour. | Oil Temp. 5.0 | 360.0 | 12°C. 10.0 | 600.0 | 15° 15.0 | 900.0 | 14° 20.0 | 1440.0 | 20° HOT OIL. Pressure Drop lbs/sq.ins. | Flow Pts/hour. | Oil Temp. 3.0 | 1380.0 | 59°C. To test the effectiveness of the filtering, a quantity of oil was obtained from the sump of a car engine and passed once only through the strainer. On comparing this filtered oil with the original, it was found to be entirely free from grit, whereas the original was not. To test the amount of residue with which the strainer could deal, a quantity of carbon grit and dust (approx. one table inch) was mixed with one gallon of oil. | ||