Parallel serpentine cooled blade
AssigneeGeneral Electric Company
InventorsChing-Pang Lee, Aspi Rustom Wadia, Steven Robert Brassfield
Life of this patent
Estimating the term…
Abstract
A turbine blade includes an airfoil having opposite pressure and suction sidewalls joined together at opposite leading and trailing edges and extending longitudinally from root to tip. A plurality of independent cooling circuits are disposed inside the airfoil correspondingly along the pressure and suction sidewalls thereof. A first serpentine circuit is disposed along the pressure sidewall. A second serpentine circuit is disposed along the suction sidewall in parallel with the first circuit. And a third impingement circuit is disposed at the leading edge forward of the first and second circuits.
Claims20
A turbine blade comprising:
- an airfoil integrally joined to a mounting dovetail;
- said airfoil including opposite pressure and suction sidewalls joined together at chordally opposite leading and trailing edges and extending longitudinally in span from root to tip;
- a first serpentine cooling circuit disposed inside said airfoil along said pressure sidewall;
- a second serpentine cooling circuit disposed inside said airfoil along said suction sidewall in parallel with said first circuit, and sharing common partitions therewith;
- a third cooling circuit disposed between said leading edge and said first and second circuits, and separated from each other by imperforate partitions in independent circuits;
- and
- each of said first, second, and third circuits terminates in a corresponding row of outlet holes extending through said airfoil in flow communication with a corresponding outlet channel thereof.
A turbine blade comprising:
- an airfoil integrally joined to a mounting dovetail;
- said airfoil including opposite pressure and suction sidewalls joined together at chordally opposite leading and trailing edges and extending longitudinally in span from root to tip;
- a first serpentine cooling circuit disposed inside said airfoil along said pressure sidewall;
- a second serpentine cooling circuit disposed inside said airfoil along said suction sidewall in parallel with said first circuit, and sharing common partitions therewith;
- and
- a third cooling circuit disposed between said leading edge and said first and second circuits, and separated from each other by imperforate partitions in independent circuits.
Dependencies are inferred from the claim text.