초록 ▼

An accessory gear drive for gas turbine engine utilizes a radially extending, floating tower shaft which is unrestrained against radial movement, but includes a resilient biasing means for normally holding the tower shaft in power driving interengagement between the central drive shaft of the engine

An accessory gear drive for gas turbine engine utilizes a radially extending, floating tower shaft which is unrestrained against radial movement, but includes a resilient biasing means for normally holding the tower shaft in power driving interengagement between the central drive shaft of the engine and an external accessory gear box. For engine maintenance, the tower shaft may be readily accessed and shifted radially outwardly by compressing the biasing means in order to facilitate easy engine disassembly and assembly.

대표청구항 ▼

[ Having described the invention with sufficient clarity that those skilled in the art may make and use it, what is claimed is:] [1.] A gas turbine engine comprising:a central drive shaft;an accessory gear box disposed radially outwardly of the drive shaft;a unitary tower shaft extending radially be

[ Having described the invention with sufficient clarity that those skilled in the art may make and use it, what is claimed is:] [1.] A gas turbine engine comprising:a central drive shaft;an accessory gear box disposed radially outwardly of the drive shaft;a unitary tower shaft extending radially between the drive shaft and the accessory gear box;first gear means for drivingly interengaging the drive shaft and the tower shaft;second gear means for drivingly interengaging the tower shaft and the accessory gear box; andresilient biasing means carried with said second gear means for radially urging the tower shaft into engagement with the first gear means during engine operation, said biasing means being compressible to permit radially outward shifting of the tower shaft out of engagement with the first gear means during engine disassembly without disturbing the accessory gear box.