The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2024

Filed:

Aug. 21, 2023
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventor:

Philippe Savard, Montréal, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/02 (2006.01); F01D 11/00 (2006.01); F01D 11/08 (2006.01);
U.S. Cl.
CPC ...
F01D 11/02 (2013.01); F01D 11/001 (2013.01); F01D 11/08 (2013.01); F05D 2220/32 (2013.01); F05D 2240/55 (2013.01);
Abstract

A seal of a gas turbine engine includes a rotationally stationary seal element secured to a rotationally fixed component of the gas turbine engine, and a labyrinth seal element secured to and rotatable with a rotational component of the gas turbine engine. The labyrinth seal element includes a seal base, and a plurality of seal fins extending outwardly from the seal base, the plurality of seal fins configured to define a seal interface between the plurality of seal fins and the rotationally stationary seal element to prevent airflow therethrough. A removal face is defined integral to an end fin of the plurality of seal fins. The removal face is configured for application of a removal force thereto to remove the labyrinth seal from an installed position in the gas turbine engine.


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