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 showing the design for a supercharger and induction pipes for a large bore Bentley.
| Identifier | ExFiles\Box 85\4\ scan0175 | |
| Date | 10th February 1937 guessed | |
| L&C 5282 SUPERCHARGER AND INDUCTION PIPES FOR LARGE BORE BENTLEY SCALE 1/4 BIFURCATED HEADER OUTLET TO SUCTION SIDE OF WATER PUMP INLET PIPE REDUCED IN DIAMETER & MODIFIED END OF PIPE CHAMFERED SHORT BOLTS PISTONS LEVELS TO BE MODIFIED AS SHOWN IN THE SHADED TOP HALF TO MAKE A CLEAN FLOW VELLUMOID WASHER .010" THICK FOR POSITION OF CORE PLUGS ON THIS JACKET SEE PATTERN SHOP E 33561 CURRY JOINT THE STD. GASKET MAY BE USED EXPERIMENTALLY BUT FOR PRODUCTION THE CURRY JOINT SHOULD BE USED & HEIGHT OF BLOCK RAISED .040" TO KEEP CLEARANCE BETWEEN PISTON & CYLINDER HEAD CONSTANT KLINGERITE WASHER .020 THICK CAST HOLE IN TOP COVER NO SHARP CORNERS ALL INTERNAL CORNERS TO HAVE A SPECIFIED RADIUS. FLANGE TO SUIT ZENITH CARBURETTER TYPE 48VI-2. DRG 09842 INLET FROM HEADER TANK VIEW OF FLANGE HIGH PRESSURE OIL FEED TO TOP & CENTRE BEARINGS NOTE TWO ROTORS ARE REQUIRED. ONE WITH 12 BLADES AS SHOWN & THE OTHER OF IDENTICAL SIZE WITH 16 BLADES EQUALLY SPACED. PLUG TO CLEAR OIL FLINGER LOCAL BULGE ROUND OIL FEED RADIUS AT LEADING EDGE RADIAL VIEW OF ROTOR GUIDE LOOKING OUTWARDS ANGLES AT LEADING EDGE FOR VARIOUS RADII FROM AXIS: RADIUS | ANGLE 0.750 | 40° 30' 1.000 | 48° 30' 1.175 | 53° 0' OIL SEAL CLEARANCE .002 ON DIAMETER OIL FLINGER TO BE A PRESS FIT ON SHAFT CORE PLUGS TO BE FLUSH WITH ROTOR FLOOR VELLUMOID WASHER .010" THICK THIS MATERIAL TO BE LEFT FOR BENDING OVER OIL FLINGER CLEARANCE .050" ON DIAMETER ROTOR BACKPLATE .050 THICK AT TIP THREE WEBS MARKED X TO THIS SHAPE VOLUTE CONSTRUCTIONAL DETAILS. DIMENSIONS SHOWN REMAIN CONSTANT EXCEPT FROM POSITION SS{S. Smith} WHEN THE PIPE COMMENCES TO LEAVE THE VOLUTE PROPER BETWEEN THE POSITIONS SS{S. Smith} AND TT THE VOLUTE DIMENSIONS SHOULD BE TAKEN FROM THE SCRAP SECTIONS SHOWN. MATERIALS: BLOWER CASING (TOP & BOTTOM HALVES): A/C ROTOR: R.R.56 ROTOR SHAFT & PINION: S/ZN OIL FLINGER: S/M FOR DETAILS OF THIS GEARBOX SEE L&C 5336 SECTION AA{D. Abbot-Anderson} SECTION BB ENGINE ℄ | ||