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US 2019/0195079 A1Published application
Air seal attachment
AssigneeUnited Technologies Corporation
InventorBrian P. Cigal
Life of this patent
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Abstract
A gas turbine engine includes a coupling and an air seal attachment. The annular coupling extends along a centerline and has coupling teeth that extend axially rearward. The annular air seal attachment includes an air seal at an axially rearward end and air seal attachment teeth at an axially forward end that extend axially forward to interlock with the coupling teeth such that the air seal attachment teeth and the coupling teeth alternate in a circumferential direction.
Claims20
A gas turbine engine comprising:
- an annular coupling extending along a centerline and having coupling teeth that extend axially rearward;
- and
- an annular air seal attachment comprising:
- an air seal at an axially rearward end;
- and
- air seal attachment teeth at an axially forward end that extend axially forward to interlock with the coupling teeth such that the air seal attachment teeth and the coupling teeth alternate in a circumferential direction.
3 more elements
An attachment for attaching an air seal to a shaft comprising:
- the air seal being annular with sealing means on a radially outer side;
- and
- attachment teeth extending axially forward of the air seal and configured to interlock with corresponding shaft teeth on the shaft.
An air seal arrangement comprising:
- a cylindrical coupling extending axially long a centerline and having coupling teeth at an axial rearward end;
- and
- a seal connection that is annular in shape and has a seal at an axially rearward end and connection teeth at an axially forward end configured to interlock with the coupling teeth to prevent movement of the seal connection relative to the coupling.
Dependencies are inferred from the claim text.