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.
Patent No.:
Date of Patent:
Jul. 07, 2020
Filed:
Apr. 03, 2015
Siemens Aktiengesellschaft, München, DE;
Jan H. Marsh, Orlando, FL (US);
Wayne J. McDonald, Charlotte, NC (US);
Matthew J. Golsen, Deltona, FL (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
The present disclosure provides a core structure comprising a trailing edge section including a plurality of rib-forming apertures () defined by a plurality of radially-extending channel elements () and axially-extending passage elements () and a radially outer low flow framing channel element () located adjacent to a radially outer edge (). The core structure may be used for casting a gas turbine engine airfoil (). The radially outer framing channel element () comprises a plurality of notches () extending radially inwardly from the radially outer edge (). A distal portion () of the notches () overlaps in an axial direction with the rib-forming apertures () of a first axially-aligned outer row (). A radial height of at least one of a first and a second axially-extending passage element () is greater than a prevalent radial height of other axially-extending passage elements () in the core structure.