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:
May. 26, 2020
Filed:
Aug. 28, 2015
Siemens Aktiengesellschaft, München, DE;
Jan H. Marsh, Orlando, FL (US);
Paul A. Sanders, Cullowhee, NC (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
A turbine airfoil () includes an impingement structure (A,B) comprising a hollow elongated main body () positioned in an interior portion () of an airfoil body (). The main body () extends lengthwise along a radial direction and defines coolant cavity () therewithin that receives a cooling fluid (). The main body () is spaced from a pressure side wall () and a suction side wall () of the airfoil body () and may be spaced from an airfoil tip (), to define respective passages () therebetween. A plurality of impingement openings () are formed through the main body () that connect the coolant cavity () with one or more of the respective passages (). The impingement openings () direct the cooling fluid () flowing in the coolant cavity () to impinge on the pressure and/or suction side walls () and/or the airfoil tip ().