A GEARED GAS TURBINE ENGINE AND A GEARBOX

A gas turbine engine (10) comprises a gearbox (28) comprises a sun gear (30), an annulus gear (32), a plurality of planet gears (34) and a carrier (36). The sun gear (30) meshes with the planet gears (34) and the planet gears (34) mesh with the annulus gear (32). The planet gear carrier (36) compris...

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Bibliographische Detailangaben
Hauptverfasser:	Madge, Jason, Doorbar, Phillip
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED OPERATIONS ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS THERMAL INSULATION IN GENERAL TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	A gas turbine engine (10) comprises a gearbox (28) comprises a sun gear (30), an annulus gear (32), a plurality of planet gears (34) and a carrier (36). The sun gear (30) meshes with the planet gears (34) and the planet gears (34) mesh with the annulus gear (32). The planet gear carrier (36) comprising a first ring (36A), a second ring (36B) spaced axially from the first ring (36A) and a plurality of circumferentially spaced axles (40) extending axially between the first ring (36A) and the second ring (36B). Each planet gear (34) is rotatably mounted on a respective one of the axles (40) and the axles (40) are arranged at a first radius (R 1 ). At least one of the first ring (36A) and the second ring (36B) comprises a metal matrix composite material ring (54A, 54B) and the metal matrix composite ring (54A, 54B) comprises a ring of reinforcing fibres (50) and the ring of reinforcing fibres having a second radius (R 2 ) greater than the first radius (R 1 ).