Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FAN ASSEMBLY
Document Type and Number:
Japanese Patent JPS63215840
Kind Code:
A
Abstract:
A fan casing 16, of a turbofan gas turbine engine, has a slot 30 which extends generally in a circumferential direction and which has an aerofoil section. A variable pitch fan blade 14 may be removed from the turbofan without removing the fan casing, 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. A plug (50, Fig. 4) is inserted into the slot to ensure a smooth continuation of the internal surface 32 during engine operation.

More Like This:
JP2010037658NICKEL-BASE SUPERALLOY, UNIDIRECTIONAL SOLIDIFICATION PROCESS THEREFOR, AND OBTAINED CASTING
JPH06102993Description: A method for extracting compressed air and an bleed assembly for a gas turbine engine.
JP5405215Methods and equipment for forming seal slots for turbine components
Inventors:
DERIKU ARUFURETSUDO PERII
Application Number:
JP3258588A
Publication Date:
September 08, 1988
Filing Date:
February 15, 1988
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ROLLS ROYCE PLC
International Classes:
F02C7/00; F01D5/30; F01D7/00; F01D11/08; F01D25/24; F02K3/04; (IPC1-7): F02C7/00
Domestic Patent References:
JP46028060A
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)



 
Previous Patent: FURNACE GAS PRESSURE TURBINE OF BLAST FURNACE

Next Patent: GAS TURBINE GENERATING SYSTEM