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Method and device for assembling turbine engine

A technology for turbines, cross-sectional profiles, used in engine manufacturing, engine components, machines/engines, etc., to solve problems such as not allowing safety pins to be inserted

Inactive Publication Date: 2004-07-14
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some rotors do not allow the safety pins to be inserted into the bays of the bays due to the closed bays

Method used

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  • Method and device for assembling turbine engine
  • Method and device for assembling turbine engine
  • Method and device for assembling turbine engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 Is a partial schematic cross-sectional view of a steam turbine 10 including a rotor assembly 12 (hereinafter referred to as the rotor) including a plurality of axially spaced mounts 14 for securing bucket blades 16 to the rotor assembly 12 . A series of nozzles 18 extend side-by-side between adjacent rows of bucket blades 16 . The nozzles 18 cooperate with the bucket blades 16 to form a platform and define a portion of the steam flow path extending along the turbine 10 as indicated by the arrows.

[0050] During operation, steam enters an inlet port (not shown) of the turbine 10 and flows through the turbine 10 parallel to the rotor 12 . The vapor impinges on a row of nozzles 18 and is directed towards bucket blades 16 . The steam then flows through the remaining stages, thereby driving the bucket blades 16 and rotor 12 in rotation.

[0051] FIG. 2 is a perspective view of a bucket blade arrangement 22 connected to rotor 12, image 3 to be able to work with...

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PUM

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Abstract

A method of assembling a turbine comprises coupling at least one bucket assembly. The bucket assembly including an upstream side, a downstream side, a blade extending therebetween and a dovetail extending radially inwardly from the blade to a rotor. The method further comprises fixedly securing the at least one bucket assembly to the rotor with a shear pin that extends from the bucket assembly upstream side to the bucket assembly downstream side.

Description

technical field [0001] The present invention relates generally to turbine engines, and more particularly to methods and apparatus for securing blades in turbine engines. Background technique [0002] At least some known turbine rotor arrangements include a rotor to which a plurality of blades are attached. The blades are arranged in circumferentially extending axially spaced gantry around the rotor. Each gantry consists of a set of stationary blades, or nozzles, and a set of cooperating rotating blades called bucket blades. [0003] Each bucket blade includes a dovetail for connecting the bucket blade to an annular groove defined by the rotor. More specifically, each dovetail joint includes a recessed portion called a hook, which is defined by an axial tang and which allows each blade to be slidably connected to the rotor. [0004] Each rotor slot is defined by a pair of generally parallel retaining rings. During assembly, the dovetail engagement of the first bucket blad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D5/32F01D5/00F01D5/30
CPCF01D5/005F05B2230/60F05D2230/60F01D5/32F05D2230/64F01D5/3038F01D5/3053
Inventor 约翰·T·墨菲
Owner GENERAL ELECTRIC CO