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Aviation History
1964
1964 - 1844.PDF
FLIGHT International, 18 June 1964 1021 GENERAL ELECTRIC and BRISTOL SIDDELEY T64 This drawing by a" flight International" artist reveals the design of the basic T64 engine in considerable detail. 'he compressor casing is shown opened, and the wbeelcase and accessory units are cut away beneath the forward part of the engine. This basic gas generator is common to all forms of T64 KEY TO T64 General 1 Power take-off 2 Power-shaft front bearing j Light-alloy intake frame £ Accessory-drive quill-shaft » Compressor front bearing 5 I^-stage compressor, p.r. 12.6:1 I Dove-tailed roots • Stainless-steel rotor blades (total « r' in J7om|i";essor casin« Cr-Mo-Va steel •<• variable inlet guide vanes (beryllium- 5°Ppe<-) steehII *ctu«or rings '* Bolts to lower <stainle"- 100 segment 14 Fuel-operated actuator (function of r.p.m, and T,,) 15 Compressor thrust bearing 16 Heat shield 17 Combustion-chamber liner (nickel- chrome alloy) 18 Heat insulation blanket 19 Inier-stage seal 20 Gas-generator turbine discs (A286 alloy) 21 Gas-generator rear bearing 22 Nozzle guide vanes (nickel-chrome alloy) 23 Stage-2 stators (X.40 alloy) 24 Power-turbine stators (L.605 alloy) 25 Power (free) turbine (A286 alloy) 26 Cast rotor blades (SEL.I alloy) 27 Cast rotor blades (A.286 alloy) 28 Forged Cr-Mo-Va steel power shaft 29 Power-turbine thrust bearing 30 Tie-bolt and balancing washers 31 Stator-segment locking pin 32 Shaft tie-bolt 33 Differential bearing 34 Curvic coupling 35 Radial drive shaft 36 Forged Cr-Mo-Va steel gas-generator shaft 37 Aluminium alloy wheelcase 38 Gas-generator tachometer-genera- tor pad 39 Starter-motor pad 40 Fuel-pump drive 41 Oil-pump drive, 4,420 r.p.m. Oil System 42 Gerotor-type oil pump (5 scavenge, I pressure, 9 US gal/min) 43 46-micron filter 44 From tank 45 Return to tank 46 Bearing oil-feed (40-60ib/sq in) to (54) 47 Scavenge lines 48 Pressure tap 49 Temperature cap 50 Relief-valve port 51 Anti-leak valve port 52 Oil feed tube 53 Oil drain 54 Oil spray nozzle 55 Sump vent 56 Carbon oil-seal Fuel and Control System 57 Fuel inlet 58 Pump and centrifugal purifier 59 Control unit 60 Military-speed trim 61 Idling-speed trim 62 Power control shaft 63 Load-signal shaft 64 Primary fuel manifold 65 Secondary fuel manifold 66 Twelve spray nozzles 67 Fuel to actuator (14) 68 Feed-back to control unit 69 Overspeed solenoid connector 70 Bleed-valve switch 71 Eight chrome-alumel thermocouples (T.) 72 Igniter plug 73 P, sensing pipe 74 Tt air inlet 75 Ta air outlet 76 Aspirator tube 77 Starting bleed valve 78 Bleed-valve boost pressure 79 Bleed pad Anti-icing Air System 80 Bleed pad 81 Valve 82 Valve solenoid 83 Pressure-sensing tap 84 Delivery to spoke 85 Supply to i.g.v. 86 Air exit holes in trailing ed-je Air System 87 Turbine cooling air 88 Relief valve 89 Power-turbine-bearing seal air 90 Vent 91 Seal pressurizing air 92 Air seal 93 I4th-stage air (cooling and bearing sealing) 94 Pressure-balance and cooling air 95 Airframe air-bleed pads
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