Abstract: A bucket assembly for a turbine system is disclosed. The bucket assembly includes a main body having an exterior surface and defining a main cooling circuit. The bucket assembly further includes a platform surrounding the main body and at least partially defining a platform cooling circuit. The platform includes a forward portion and an aft portion each extending between a pressure side slash face and a suction side slash face and further includes a forward face, an aft face, and a top face. The bucket assembly further includes a plenum at least partially defined in the platform. The plenum is in fluid communication with the main cooling circuit and extends from the main cooling circuit towards the suction side slash face.

Abstract: A bucket assembly for a turbine system is disclosed. The bucket assembly includes a main body having an exterior surface and defining a main cooling circuit, and a platform surrounding the main body and at least partially defining a platform cooling circuit. The bucket assembly further includes a passage defined in the main body extending from the exterior surface, the passage connecting the main cooling circuit and the platform cooling circuit, and a plug at least partially disposed in the passage. The plug includes a head and a plunger. The head is configured for preventing a flow through at least a portion of the passage. The plunger has a continuous exterior surface and is configured for allowing a flow between the main cooling circuit and the platform cooling circuit.

Abstract: A turbine includes a turbine seal. The turbine seal includes a first straight portion extending along a first axis. The turbine seal also includes a second straight portion extending along the first axis. The first and second straight portions of the turbine seal intersect to form a V-shaped cross section with an opening extending along the first axis. The first and second straight portions of the turbine seal are also configured to resiliantly move towards and away from each other and the first and second straight portions of the turbine seal are configured to pre-load the turbine seal along a gap between first and second bucket segments of the turbine.

Abstract: A system including a first turbine segment comprising a first blade coupled to a first shank. The system also includes a second turbine segment including a second blade coupled to a second shank, as well as a plunger seal disposed in a gap between the first and second shanks. The system also includes a biasing element disposed in a hollow region of the first shank, wherein the biasing element is directly adjacent to the plunger seal.

Abstract: A system including: a first turbine segment comprising a first blade coupled to a first shank. The system also includes a second turbine segment including a second blade coupled to a second shank, as well as an elongated flexible seal disposed in a gap between the first and second shanks. The elongated flexible seal includes an opening configured to channel a fluid flow into a hollow region of the elongated flexible seal to induce expansion of the elongated flexible seal in the gap.

Abstract: A bucket pair in a turbomachine includes a first bucket having an airfoil and a shank; a second adjacent bucket having a second airfoil and a second shank adjacent the first shank; a first axial slot in the first shank; and an elongated, straight damper pin adapted to seat in the first axial slot, the damper pin formed with slanted forward and aft end faces.

Abstract: The present application provides a turbine bucket. The turbine bucket may include a shank, a radial seal pin slot positioned on the shank, and a seal pin positioned within the radial seal pin slot. The seal pin may include a pair of shouldered ends.