Retainer for securing a seal element to a seal carrier

Patent metadata

Field	Value
Publication number	US-11624439-B2
Application number	US-202016859424-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Apr 27, 2020
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

An assembly is provided for rotational equipment. This assembly includes a seal carrier, a seal element and a retainer. The seal carrier is configured with a receptacle. The seal element is seated in the receptacle. The retainer is configured to secure the seal element to the seal carrier. The seal element is arranged radially between the seal carrier and the retainer.

First claim

What is claimed is:

1. An assembly for rotational equipment, comprising:
a seal carrier configured with a receptacle;
a seal element seated in the receptacle;
a retainer configured to secure the seal element to the seal carrier, wherein the seal element is arranged radially between and contacts the seal carrier and the retainer; and
a seal land configured to rotate about an axial centerline, the seal land sealing engaged with the seal element.

2. The assembly of claim 1 , wherein the seal carrier, the seal element and the retainer each extend circumferentially about an axial centerline.

3. The assembly of claim 1 , wherein
the receptacle extends partially axially into the seal carrier;
the receptacle extends partially radially into the seal carrier; and
the receptacle extends within the seal carrier circumferentially about an axial centerline.

4. The assembly of claim 1 , wherein the seal element comprises a carbon seal element.

5. The assembly of claim 1 , wherein the seal element circumscribes the retainer.

6. The assembly of claim 1 , wherein the retainer axially overlaps the seal element and the seal carrier.

7. The assembly of claim 1 , wherein the retainer is configured to radially engage the seal element and the seal carrier.

8. The assembly of claim 1 , wherein the retainer is attached to the seal carrier by a tight fit interface or a threaded interface between the retainer and the seal carrier.

9. The assembly of claim 1 , wherein
the retainer comprises a retainer sleeve and a retainer lip;
the retainer sleeve axially overlaps the seal element and the seal carrier; and
the retainer lip projects radially out from the retainer sleeve and radially overlaps the seal element.

10. The assembly of claim 9 , wherein
the retainer sleeve radially engages the seal carrier; and
the retainer lip axially engages the seal element.

11. The assembly of claim 9 , wherein the seal element is axially captured between the retainer lip and the seal carrier.

12. The assembly of claim 1 , further comprising an anti-rotation feature configured to prevent or limit rotation of the seal element relative to the seal carrier.

13. The assembly of claim 1 , further comprising:
a plurality of guide rails arranged in an array about an axial centerline;
the seal carrier mated with and configured to translate axially along each of the plurality of guide rails.

14. The assembly of claim 13 , further comprising:
a static structure;
each of the plurality of guide rails attached to the static structure.

15. The assembly of claim 14 , further comprising a coil spring axially engaged with and between the seal carrier and the static structure, the coil spring configured to bias the seal element axially away from the static structure.

Assignees

• Raytheon Tech Corp

Inventors

• Nasman Benjamin
• Davis Michael M

Classifications

• F16J15/3452

  the pressing force resulting from the action of a spring · CPC title

• F02C7/28

  Arrangement of seals · CPC title

• F16J15/3472 Primary

  Means for centering or aligning the contacting faces · CPC title

• F01D11/003

  by packing rings; Mechanical seals · CPC title

• F05D2220/32

  in gas turbines · CPC title