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. 05, 2015
Filed:
Feb. 15, 2011
Ching-pang Lee, Cincinnati, OH (US);
Nan Jiang, Jupiter, FL (US);
John J. Marra, Winter Springs, FL (US);
Ronald J. Rudolph, Jensen Beach, FL (US);
John P. Dalton, Wellington, FL (US);
Ching-Pang Lee, Cincinnati, OH (US);
Nan Jiang, Jupiter, FL (US);
John J. Marra, Winter Springs, FL (US);
Ronald J. Rudolph, Jensen Beach, FL (US);
John P. Dalton, Wellington, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Mikro Systems, Inc., Charlottesville, VA (US);
Abstract
A continuous serpentine cooling circuit forming a progression of radial passages (A,A) between pressure and suction side walls () in a MID region of a turbine airfoil (). The circuit progresses first axially, then tangentially, ending in a last radial passage (A) adjacent to the suction side () and not adjacent to the pressure side (). The passages of the axial progression () may be adjacent to both the pressure and suction side walls of the airfoil. The next to last radial passage (A) may be adjacent to the pressure side wall and not adjacent to the suction side wall. The last two radial passages (A,A) may be longer along the pressure and suction side walls respectively than they are in a width direction, providing increased direct cooling surface area on the interiors of these hot walls.