US 10,330,011 B2 · Bench aft sub-assembly for turbine exhaust case fairing

Abstract

A fairing sub-assembly 88 for a turbine frame comprises an inner ring 50, an outer ring 48 and a plurality of strut-shells. The inner ring is formed of a plurality of inner segments 82. The outer ring is formed of a plurality of outer segments 80. The plurality of strut-shells 84, 86 connecting the inner ring 48 and the outer ring 50. In another embodiment, the fairing sub-assembly comprises an inner band 45 joining the plurality of inner segments 82 and the plurality of strut-shells 86 to form outer slots, and an outer band 44 joining the plurality of outer segments 80 and the plurality of strut-shells 86 to form inner slots. A method of assembling a fairing 46 comprises inserting the aforementioned fairing sub-assembly 38 into an aft end of a turbine frame 42, inserting a plurality of forward strut-shells 84 into the outer and inner slots at a forward end of the turbine frame 42, and joining the forward strut-shells 84 to the fairing sub-assembly 88.

Claims19

Dependent claims

A fairing sub-assembly for a turbine frame, the fairing sub-assembly comprising:

a plurality of inner arcuate segments distributed circumferentially along an inner ring, each inner arcuate segment comprising a discrete piece circumferentially separated from adjacent arcuate inner segments;
a plurality of outer arcuate segments distributed circumferentially along an outer ring, each outer arcuate segment comprising a discrete piece circumferentially separated from adjacent arcuate outer segments;
and
a plurality of strut-shells connecting and completing the inner ring and the outer ring, each strut-shell comprising:
a metal body forming a U-shaped or V-shaped pocket;
an outer diameter strut shroud segment connected to the metal body, and extending circumferentially in an arcuate section;
and
an inner diameter strut shroud segment connected to the metal body opposite the outer diameter strut shroud segment, and extending circumferentially in an arcuate section;
wherein each of the plurality of strut-shells has a circumferential extent not overlapping with the inner and outer arcuate segments, and is joined to adjacent inner and outer arcuate segments by axially-extending welds.

6 more elements

Dependencies are inferred from the claim text.

Bench aft sub-assembly for turbine exhaust case fairing

Life of this patent

Bench aft sub-assembly for turbine exhaust case fairing

Life of this patent

Abstract

Claims19