FIELD: internal combustion engines.
SUBSTANCE: gas turbine engine comprises fan section (22), shaft (40) rotatable with respect to fan housing (64) around central axis (A) of the motor, gear structure (48), compressor (44), fixed structure (80) and at least one fan support bearing (82) supporting fan hub (60) for rotation with respect to fixed structure (80). Gear structure (48) comprises sun gear (84) driven by shaft (40), plurality of star gears (86) that are supported by a carrier attached to fixed structure (80), and are in engagement with sun gear (84), and outer ring gear (90) in engagement with star gears (86). Fan hub (60) comprises plurality of fan drive legs (92) arranged radially outwardly from the outer ring gear (90). Outer ring gear (90) provides direct power transmission to plurality of fan drive legs (92).
EFFECT: invention is aimed at reducing the weight and total length of the motor in the axial direction.
11 cl, 2 dwg
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Authors
Dates
2018-08-31—Published
2013-07-19—Filed