FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1967
1967 - 2214.PDF
FLIGHT International, 16 November 1967 809 IGH-PRESSUREJMPRESSOR kSE COMPRESSORINTERMEDIATE CASE LOW-PRESSURECOMPRESSOR CASE AIR INLET AND FRONTBEARING SUPPORT CASE SPEY 25R This cutaway drawing by "Flight" staff artist Vic Bern's analyses the Rolls-Royce Spey 25R, one of the world's few production after- burning turbofan engines. Powerptant for the McDonnell F-4K and F-4M Phantoms for the Royal Navy and RAF respectively, the Spey 2SR delivers about 12,5001b thrust cold or 2l,Q00lb using its fully modulated afterburner Air inlet and front bearing support case I, air inlet hub: 2, front bearing; 3, inlet guide vanes; 4, hot air anti-icing manifold; S, hot air anti-icing tubes Low-pressure compressor case 6, Stage-1 rotor blade; 7, air seal; 8, Stage-I stator vanes; 9, l-p com- pressor shaft; 10, front bearing oil return tube; II, l-p compressor rotor wheels; 12, outlet guide vanes Compressor intermediate case 13, l-p compressor rear bearing; 14, low-speed gearbox gear; 15, internal gearbox; 16, high-speed gearbox drive bearing; 17, high-speed gearbox gear; 18, by-pass duct fairing; 19, variable inlet guide vanes; 20, variable inlet guide vane actuating ring; 21, h-p compressor front bearing; 22, high-speed gearbox drive shaft. High-pressure compressor case 23, h-p compressor shaft; 24, h-p compressor rotor wheel; 25, Stage-I rotor blades; 26, Stage-I stator vanes; 27, bleed valve; 28, cooling air tube; 29, Stage-7 air manifold (b.l.c. air); 30, l-p compressor intermediate shaft; 31, oil feed tube. Diffuser case 32, h-p compressor outlet guide vanes; 33, anti-icing air manifold; 34, Stage-12 air manifold; 35, l-p compressor/turbine thrust bearing; 36, h-p compressor/turbine thrust bearing; 37, b.l c. air ducting. Combustion case 38, combustion liner air scoop; 39, combustion liner interconnector; 40, heat shield; 41, fuel nozzle spray and burner feed arm; 42, com- bustion liner; 43, discharge nozzle. Turbine case 44, h-p turbine shaft; 45, h-p turbine bearing; 46, l-p turbine shaft; 47, h-p I turbine disc; 48, h-p I nozzle guide vanes; 49, l-p I cooling air collector; 50, h-p I turbine blades; 51, h-p 2 nozzle guide vanes; 52, h-p 2 turbine blades; 53, h-p 2 turbine disc; 54, turbine interstage seals; 55, l-p I turbine disc; 56, l-p 1 nozzle guide vanes; 57, I turbine blades; 58, l-p 2 nozzle guide vanes; 59, l-p 2 turbine blades; 60, l-p 2 turbine disc; 61, l-p turbine bearing; 62, l-p turbine bearing support struts. Exhaust mixer and transition section 63, exhaust mixer chute; 64, turbine gas temperature thermo- couple; 65, exhaust inner fairing. Miscellaneous 66, Tl, T3, T6 amplifier; 67, reheat fuel injector probe; 68, pressure-ratio rams; 69, nozzle oil pump; 70, reheat fuel control unit; 71, high- speed gearbox; 72, Plessey gas turbine starter; 73, c.s.d. air-cooled oil cooler; 74, engine air-cooled oil cooler; 75, Tl thermocouple; 76, hydraulic pump mounting; 77, auxiliary gearbox; 78, engine oil tank; 79, c.s.d. unit; 80, a.c. generator; 81, oil pumps; 82, high-energy ignition unit; 83, cam box; 84, engine mounting. Afterburner 85, diffuser; 86, vapour gutters and fuel manifold feeds; 87, main fuel manifolds; 88, strut; 89, vapour gutters; 90, heat shield; 91, nozzle operating ram; 92, afterburner casing; 93, cam track; 94, nozzle operating rollers; 95, variable nozzle; 96, divergent ejector nozzle; 97, master flap; 98, aircraft seal surface; 99, sealing flap; 100, nozzle actuating sleeve; 101, cooling air bleeds; 102, reheat igniter; 103, external airflow; 104, rear suspension ring.
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
