Hanger system for a turbine engine component

Patent metadata

Field	Value
Publication number	US-10100659-B2
Application number	US-201514968157-A
Country	US
Kind code	B2
Filing date	Dec 14, 2015
Priority date	Dec 16, 2014
Publication date	Oct 16, 2018
Grant date	Oct 16, 2018

Abstract

A component of a turbine is disclosed. The component includes an carrier segment having a rail, an frame segment including a hanger having a flange supported on the rail of the carrier segment, and an inner surface having a section of a track for a turbine blade defined therein. The component also includes a retainer segment secured to the carrier segment such that the hanger is secured between the retainer segment and the carrier segment.

First claim

What is claimed is:

1. A turbine shroud, comprising:
a carrier including a plurality of carrier segments arranged about a central axis,
a seal ring having a track for a turbine blade defined therein, the seal ring including a plurality of seal ring segments arranged concentrically with the plurality of carrier segments, each seal ring segment being formed as one piece from a ceramic matrix composite material and engaged with a corresponding carrier segment at a first point along the central axis,
a retainer secured to the carrier at a second point along the central axis such that the seal ring is secured between the carrier and the retainer,
wherein the seal ring is devoid of openings or passageways for fasteners,
wherein a first carrier segment includes a lip that extends in a first direction along the central axis and is received in a slot defined in the retainer, and a fastener secures the retainer to the first carrier segment.

2. The turbine shroud of claim 1 , wherein:
the first carrier segment includes a rail extending in the first direction, and
a first seal ring segment includes a flange (i) extending in a second direction opposite the first direction, and (ii) engaged with the rail of the first carrier segment at the first point.

3. The turbine shroud of claim 2 , wherein the rail is one of a number of rails and the flange is one of a number of flanges, each rail of the first carrier segment being engaged with a corresponding flange of the first seal ring segment.

4. The turbine shroud of claim 3 , wherein the first carrier segment includes:
a wall extending along the central axis from a first end to a second end,
a first support wall extending radially inward from the first end of the wall, the first support wall having one of the rails extending therefrom, and
a second support wall extending radially inward from the second end of the wall, the second support wall having another rail extending therefrom.

5. The turbine shroud of claim 4 , wherein the first seal ring segment includes:
an arcuate body,
a first post extending radially outward from the arcuate body, the first post having one of the flanges extending therefrom, and
a second post extending radially outward from the arcuate body, the second post having another flange extending therefrom.

6. The turbine shroud of claim 5 , wherein the second post is positioned between the second support wall and the retainer.

7. The turbine shroud of claim 6 , wherein the retainer includes:
a first body positioned adjacent the arcuate body of the first seal ring segment,
a second body secured to the first carrier segment, and
a third body extending between the first body and the second body.

8. The turbine shroud of claim 7 , wherein the fastener is a key received in a keyway defined in the first carrier segment and a groove defined in the second body of the retainer.

9. A component of a turbine, comprising:
a carrier segment having a rail,
a seal ring segment including (i) a hanger having a flange supported on the rail of the carrier segment, and (ii) an inner surface having a section of a track for a turbine blade defined therein, and
a retainer segment secured to the carrier segment such that the hanger is secured between the retainer segment and the carrier segment,
wherein the seal ring segment is devoid of fasteners,
further comprising a fastener extending through the retainer segment and the carrier segment.

10. The component of claim 9 , wherein:
(i) the rail of the carrier segment is a first rail, (ii) the hanger of the seal ring segment is a first hanger, and (iii) the retainer segment is positioned on a first side of the first hanger,
the seal ring segment includes a second hanger that is spaced apart from the first hanger and is positioned on a second side of the first hanger, and
the carrier segment includes a second rail that supports a flange of the second hanger.

11. The component of claim 10 , wherein:
a third rail includes a lip that is received in a slot defined in the retainer segment, and
the fastener is a key received in a keyway defined in the carrier segment and a groove defined in the retainer segment.

12. The component of claim 9 , wherein the seal ring segment is formed as one piece from a ceramic matrix composite material.

13. The component of claim 9 , wherein the seal ring segment includes a body and the hanger includes a post that extends outwardly from the body to an outer tip, and the flange extends from the outer tip of the post.

14. A method of assembling a component of a turbine, the method comprising:
advancing a seal ring segment forward to engage a hanger of the seal ring segment with a rail of a carrier segment,
positioning a retainer aft the hanger of the seal ring segment, and
securing the retainer to the carrier segment, via a fastener extending through the carrier segment into a bottom surface of a groove in the retainer such that the hanger is secured between the carrier segment and the retainer.

15. The method of claim 14 , wherein advancing the seal ring segment forward includes:
engaging a first hanger of the seal ring segment with a first rail of the carrier segment, and engaging a second hanger of the seal ring segment with a second rail of the carrier segment, the first hanger being positioned forward of the second hanger.

Assignees

• Rolls Royce Corp
• Rolls Royce Nam Tech Inc
• Rolls Royce Plc
• Rolls Royce Nam Tech Inc

Inventors

• Lamusga Joseph P
• Sippel Aaron D
• Freeman Ted J
• Thomas David J
• Jones Simon L

Classifications

• F05D2230/60

  Assembly methods · CPC title

• Y02T50/676

  Cross-Sectional Technologies · mapped topic

• Y02T50/672

  Cross-Sectional Technologies · mapped topic

• F05D2240/11

  Shroud seal segments · CPC title

• F05D2260/30

  Retaining components in desired mutual position · CPC title