Damper and seal pin arrangement for a turbine blade
AssigneeGeneral Electric Company
InventorsBradley BOYER, Matthew D. COLLIER
Life of this patent
Estimating the term…
Abstract
A bucket for a turbomachine rotor wheel includes an airfoil portion, a shank portion and a dovetail mounting portion, the shank portion including opposite sides, one of the sides formed with a substantially axially-oriented groove extending between forward and aft ends of the shank portion. The other one of the opposite sides is formed with at least one substantially radially-oriented groove. The substantially axially-oriented groove is adapted to receive an elongated damper pin, and the at least one substantially radially-oriented groove is adapted to receive an elongated radial seal pin.
Claims20
A bucket pair in a turbomachine comprising:
- a first bucket having a first airfoil portion and a first shank portion;
- a second adjacent bucket having a second airfoil portion and a second shank portion adjacent said first shank portion;
- a substantially axially-oriented groove in said first shank portion;
- at least one substantially radially-oriented groove in said second shank portion;
- an elongated damper pin seated in said at least one substantially axially-oriented groove in said first shank portion;
- and an elongated radial seal pin seated in said at least one substantially radially-oriented groove in said second shank portion.
A bucket for a turbomachine rotor wheel comprising:
- an airfoil portion, a shank portion and a dovetail mounting portion, said shank portion including opposite sides, one of said sides formed with a substantially axially-oriented groove extending between forward and aft ends of said shank portion, and the other of said sides formed with a least one substantially radially-oriented groove, said substantially axially-oriented groove adapted to receive an elongated damper pin, and said at least one substantially radially-oriented groove adapted to receive an elongated radial seal pin.
A bucket and pin assembly for a turbine machine rotor wheel comprising:
- a bucket formed with an airfoil portion, a shank portion and a dovetail mounting portion, said shank portion including opposite sides each adapted to face respective adjacent buckets when installed on a rotor wheel, one of said opposite sides of said shank portion formed with a substantially axially-oriented groove extending between forward and aft ends of said shank portion, and the other of said opposite sides formed with at least one substantially radially-oriented groove at a forward end of the bucket;
- an elongated damper pin seated in said substantially axially-oriented groove, and a radial seal pin located in said at least one substantially radially-oriented groove.
Dependencies are inferred from the claim text.