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:
Feb. 14, 2013
Ching-pang Lee, Cincinnati, OH (US);
Kok-mun Tham, Oviedo, FL (US);
Eric Schroeder, Loveland, OH (US);
Jamie Meeroff, Cincinnati, OH (US);
Samuel R. Miller, Jr., Port St. Lucie, FL (US);
John J. Marra, Winter Springs, FL (US);
Ching-Pang Lee, Cincinnati, OH (US);
Kok-Mun Tham, Oviedo, FL (US);
Eric Schroeder, Loveland, OH (US);
Jamie Meeroff, Cincinnati, OH (US);
Samuel R. Miller, Jr., Port St. Lucie, FL (US);
John J. Marra, Winter Springs, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A gas turbine engine including: an ambient-air cooling circuit () having a cooling channel () disposed in a turbine blade () and in fluid communication with a source () of ambient air: and an pre-swirler (), the pre-swirler having: an inner shroud (); an outer shroud (); and a plurality of guide vanes (), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes () define respective nozzles () there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls () of the pre-swirler may be contoured.