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).
Blueprint of an orifice and a graph of coefficients for Fliegner's formula based on orifice size and pressure drops.
| Identifier | ExFiles\Box 27\2\ Scan298 | |
| Date | 30th October 1934 | |
| DERBY. RADIUS = D QMD FORM OF ORIFICE USED IN THE INVESTIGATION. COEFFICIENT PRESSURE IN INCHES OF WATER CORRECTED TO 29.921 IN. MERCURY AND 60 DEG. F.{Mr Friese} 1" ORIFICE 1/2" ORIFICE 1/4" ORIFICE 3/8" ORIFICE 1/8" ORIFICE 1/16" ORIFICE COEFFICIENTS TO BE APPLIED TO FLIEGNER'S FORMULA FOR VARIOUS SIZE ORIFICES AND VARIOUS PRESSURE DROPS. ROLLS-ROYCE, LTD. PRINT ROOM OCT 30 1934 DERBY. | ||