Abstract:
PROBLEM TO BE SOLVED: To provide a method for accumulating a material in a turbine blade-shaped part (18) having a tip wall (34) extended by crossing a tip cap (36) and including first alloy having single crystal microtexture. SOLUTION: This method comprises steps for depositing second alloy having stronger high temperature oxidation resistance than that of the first alloy in at least part of the tip wall (34) and forming a restorative structure having substantially the same crystal orientation as that of the tip wall (34). COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for changing a part of a composite airfoil part (22) in a turbine. SOLUTION: The method includes a step of preparing the turbine equipped with a plurality of composite airfoil parts (22) mounted on a wheel (24). At least one composite airfoil part (22) icnludes a core (30) made of non-plastic material and a plastic airfoil part (32) surrounding at least a part of the core. The method is composed of accessing the composite airfoil part (22) having the plastic airfoil part (32) which needs to be changed, removing the plastic airfoil part (32) to expose the core while keeping the core(30) mounted on the wheel (24), and forming the plastic airfoil part (32) to surround the core while keeping the core (30) mounted on the wheel (24). COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a repairing method of a turbine moving blade capable of restraining a crack caused by welding. SOLUTION: The repairing method of the turbine moving blade is for repairing the damage of a fin on a turbine moving blade end part, and the damaged portion of the fin is subjected to build-up welding (step S2), and after peening treatment (step S4) of a boundary region between the fin and the build-up welding, solution heat treatment is performed (step S6), and the damage of the fin of the turbine moving blade can be repaired. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of easily repairing turbine engine components such as the blades and vanes of a compressor. SOLUTION: This method of repairing a turbine engine component 10 comprises a step of providing the turbine engine component 10 having an air foil part 16, a step of applying a coating 15 to the air foil part 16, and a step of flowing by heating the coated material in a die set 24 and regenerating the tip part, chord, and surfaces of the air foil part 16 to the initial dimensions by a single process. The component 10 can be easily repaired through these steps. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To repair a combustor inside liner panel of a high-bypass turbo fan engine. SOLUTION: In this method, after a combustor 45 is inspected to determine whether the portion of an inside liner assembly 48, 80 is cracked or not, the cracked inside liner assembly 48, 80 is removed from the combustor 45. Next, the portion of the inside liner assembly 48, 80 formed of a porous panel area 84, a rear lip area 86, a rear seal flange area 87, and a rear panel support leg 88 is separated from the inside liner assembly 48, 80. The porous panel area 84 and the rear lip area 86 are discarded together with the rear seal flange area 87, and a new rear lip area/rear seal flange area and a new porous area are provided. After these parts are modified, these new parts are connected to the inside liner assembly at the rear of the rear panel support leg 88 and a forward bolt flange area 81. COPYRIGHT: (C)2006,JPO&NCIPI