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).
Performance test results for an Autovac system, showing suction levels and travel distance against RPM.
| Identifier | ExFiles\Box 40\4\ Scan068 | |
| Date | 9th May 1923 | |
| AUTOVAC TESTS. SHEET 4 40-50 H.P. R.R. CARB & STANDARD INDUCTION PIPE. INDUCTION PIPE DEPN & SUCTION ON PETROL SHOWING EFFECT OF NON RETURN VALVE FULL THROTTLE. Y-AXIS: SUCTION INCHES OF WATER X-AXIS: R.P.M. CURVE 1: INDUCTION PIPE DEPRESSION CURVE 2: SUCTION ON PETROL SUPPLY PIPE RELATIVE POSITION OF PETROL TANK AND AUTOVAC [G.E.X.] DIAGRAM LABELS: SUCTION, PETROL FEED FROM TANK, AUTOVAC, PETROL TANK, GROUND LEVEL DIMENSIONS: 44", 22", 24.25", 32.45", 6", 19.75" SHEET 1 FULL THROTTLE DISTANCE TRAVELLED WITH AUTOVAC & FLOAT CHAMBER OF CARB FULL NO ACCOUNT TAKEN OF ANY PETROL DRAWN OVER BY AUTOVAC. AUTOVAC CAPACITY 6.275 PINTS (INCLUDING CARB FLOAT CHAMBER). Y-AXIS: MILES [ON TOP GEAR] X-AXIS: R.P.M., M.P.H TOP GEAR CURVE: DIST. ON TOP GEAR X-AXIS VALUES: RPM: 500, 750, 1000, 1250, 1500, 1750, 2000 M.P.H TOP GEAR: 14.38, 21.57, 28.76, 35.96, 43.14, 50.34 STAMP: ROLLS-ROYCE LIMITED PRINT ROOM 9 MAY. 23 DERBY | ||