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:
Jun. 04, 2024

Filed:

Oct. 27, 2020
Applicants:

Pratt & Whitney Canada Corp., Longueuil, CA;

Hanwha Aerospace Co., Ltd., Gyeongsangnam-do, KR;

Inventors:

Young Jung Joo, Changwon-si, KR;

Guy Lefebvre, Saint-Bruno-de-Montarville, CA;

Jacob Biernat, LaSalle, CA;

Assignees:

HANWHA AEROSPACE CO., LTD., Gyeongsangnam-Do, KR;

PRATT & WHITNEY CANADA CORP., Loungueuil, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64D 33/04 (2006.01); F01D 25/30 (2006.01);
U.S. Cl.
CPC ...
B64D 33/04 (2013.01); F01D 25/30 (2013.01); F05D 2220/323 (2013.01);
Abstract

An aircraft has an exhaust duct assembly disposed in a low-pressure turbine portion of a gas turbine engine to discharge exhaust gas to the outside and includes a duct having an inlet through which an exhaust gas is introduced, an exhaust portion through which the exhaust gas is exhausted, and a mounting bore formed therethrough; a duct housing in which the duct is disposed therein, and including a mounting hole into which the exhaust portion is inserted; a shaft housing disposed inside the mounting bore, inserted into the duct housing so that one end thereof faces the inlet of the duct, and having a driving axis of the low-pressure turbine portion disposed therein; and a sealing portion having a ring shape, being coupled to one end of the shaft housing, and maintaining airtightness between the driving axis and the shaft housing.


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