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:
Nov. 24, 2020

Filed:

Nov. 19, 2018
Applicant:

United Technologies Corporation, Farmington, CT (US);

Inventors:

Andrew S. Aggarwala, Vernon, CT (US);

Russell J. Bergman, Windsor, CT (US);

Assignee:

RAYTHEON TECHNOLOGIES CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 9/02 (2006.01); F01D 11/04 (2006.01); F01D 11/00 (2006.01);
U.S. Cl.
CPC ...
F01D 11/04 (2013.01); F01D 9/02 (2013.01); F01D 11/001 (2013.01); F01D 11/005 (2013.01); F05D 2240/127 (2013.01); F05D 2240/57 (2013.01); F05D 2240/80 (2013.01);
Abstract

A platform includes a platform body. The platform body has an airfoil support surface, an axially extending base surface opposite the airfoil support surface, and a leading edge. The leading edge includes an upstream extending flange with a raised portion and a trough portion downstream of and radially inward from the raised portion. The raised portion and the trough portion are for holding a vortex of fluid flow. The upstream extending flange includes a converging surface connecting the upstream extending flange to the base surface. The converging surface converges in a direction toward the axially extending base surface and is at an angle relative to the base surface.


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