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:
Oct. 08, 2019

Filed:

Feb. 28, 2017
Applicants:

United Technologies Corporation, Farmington, CT (US);

Mtu Aero Engines Ag, Munich, DE;

Inventors:

Nicholas R. Leslie, South Berwick, ME (US);

Fadi S. Maalouf, East Hampton, CT (US);

Georg Zotz, Haimhausen, DE;

Werner Humhauser, Moosburg, DE;

Assignees:

United Technologies Corporation, Farmington, CT (US);

MTU Aero Engines AG, Munich, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/12 (2006.01);
U.S. Cl.
CPC ...
F01D 11/122 (2013.01); F01D 11/125 (2013.01); F01D 11/127 (2013.01); F05D 2230/312 (2013.01); Y02T 50/6765 (2018.05);
Abstract

A blade outer air seal (BOAS) for a gas turbine engine includes, among other things, a seal body having a radially inner face and a radially outer face that axially extend between a leading edge portion and a trailing edge portion. The BOAS includes a trough disposed on the radially inner face and an abradable seal received within the trough. The trough is open to expose a leading edge of the abradable seal to a core flow path of the gas turbine engine.


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