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:
Jan. 06, 2015
Filed:
Nov. 29, 2012
Ching-pang Lee, Cincinnati, OH (US);
Kok-mun Tham, Oviedo, FL (US);
Paul H. Vitt, Liberty Township, OH (US);
Eric Schroeder, Loveland, OH (US);
Ching-Pang Lee, Cincinnati, OH (US);
Kok-Mun Tham, Oviedo, FL (US);
Paul H. Vitt, Liberty Township, OH (US);
Eric Schroeder, Loveland, OH (US);
Siemens Aktiengesellschaft, München, DE;
Abstract
A gas turbine engine, including: a plurality of blades () assembled into an annular row of blades and partly defining a hot gas path () and a cooling fluid path (), wherein the cooling fluid path extends from a rotor cavity () to the hot gas path; an angel wing assembly () disposed on a side () of a base () of the row of blades; and pumping features () distributed about the angel wing assembly configured to impart, at a narrowest gap () of the cooling fluid path, motion to a flow of cooling fluid flowing there through. The plurality of pumping features, the angel wing assembly, and the base of the row of blades are effective to produce a helical motion to the flow of cooling fluid as it enters the hot gas path.