Fan casing and fan blade loading/unloading

Details Fan casing and fan blade loading/unloading Fan casing and fan blade loading/unloading

1987-09-09

1988-03-29

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Including destructible, fusible, or deformable non-reusable...

415174, 415197, 415201, 415219R, F01D 530, F01D 2100

Patent

active

047340070

ABSTRACT:
A fan casing of a turbofan gas turbine engine has a slot which extends generally in a circumferential direction and which has an aerofoil section. A variable pitch fan blade may be removed from the turbofan by rotating the fan blade about its axis of rotation to fine pitch setting, and rotating the fan rotor so as to align the tip of the fan blade with the slot. The fan blade is detached from the fan rotor and the tip of the fan blade is inserted radially into the slot. The root portion of the fan blade is then moved in a radially outwards and axial direction to remove the fan blade. The slot in the casing allows the fan blade to be loaded by the reverse procedure. Loading/unloading of a fan blade is made possible without removing the fan casing.

REFERENCES:
patent: 2851214 (1958-09-01), Busquet
patent: 3386155 (1968-06-01), Jenkinson

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