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:
Apr. 28, 2015
Filed:
Apr. 03, 2012
Robert Frederick Bergholz, Jr., Loveland, OH (US);
Daniel Lee Durstock, Fort Wright, KY (US);
Robert Frederick Bergholz, Jr., Loveland, OH (US);
Daniel Lee Durstock, Fort Wright, KY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A turbine airfoil includes pressure and suction sidewalls extending along a span from a base to a tip. Spanwise spaced apart trailing edge cooling holes in the pressure sidewall end at corresponding spanwise spaced apart trailing edge cooling slots extending chordally substantially to the trailing edge. Each cooling hole includes a plug extending downstream through at least a portion of a spanwise diverging section leading into the slot. The plug may be spanwise centered in the hole and may include a plug dome rising up from a plug base extending along a suction sidewall surface of the suction sidewall. The cooling hole may further include an inlet leading to a metering section with a constant area and constant width flow cross section upstream of spanwise diverging section. Lands may be disposed between the trailing edge cooling slots forming slot floors between lands.