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:
Jun. 30, 2020
Filed:
Sep. 18, 2014
Siemens Aktiengesellschaft, München, DE;
Ching-Pang Lee, Cincinnati, OH (US);
Jae Y. Um, Winter Garden, FL (US);
Gerald L. Hillier, Charlottesville, VA (US);
Wayne J. McDonald, Charlotte, NC (US);
Erik Johnson, Cedar Park, TX (US);
Anthony Waywood, Cincinnati, OH (US);
Eric Schroeder, Loveland, OH (US);
Zhengxiang Pu, Oviedo, FL (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
A core structure () includes a first core element () including a leading edge section (), a tip section (), and a turn section () joining the leading edge and tip sections (). The first core element () is adapted to be used to form a leading edge cooling circuit () in a gas turbine engine airfoil (). The leading edge cooling circuit () includes a cooling fluid passage () having a leading edge portion () formed by the first core element leading edge section (), a tip portion () formed by the first core element tip section (), and a turn portion () formed by the first core element turn section (). Each of the leading edge portion (), the tip portion (), and the turn portion () of the cooling fluid passage () are formed concurrently in the airfoil () by the first core element ().