Patent ID: 7549845
Filing Date: 2009-06-23
Classification: F01D

Abstract:
1. A gas turbine comprising: a plurality of rotor discs, and sealing structures each sealing between the rotor discs adjacent to each other, wherein each of the sealing structures comprises: a first overhanging portion formed on a rotor disc among the plurality of rotor discs so as to be annularly around a rotor axis, a second overhanging portion formed on another rotor disc among the plurality of rotor discs adjacent to the rotor disc so as to be annularly around the rotor axis and to face the first overhanging portion, a first groove portion formed circumferentially on an end surface of the first overhanging portion, a second groove portion formed circumferentially on an end surface of the second overhanging portion so as to face the first groove portion, disc engagement portions provided to at least one of the first and second overhanging portions, a sealing plate assembly formed on a plurality of annular sealing plates mutually stacked and removably provided in the first and second groove portions, sealing plate engagement portions provided to the sealing plate assembly, and retaining members engaged and fixed to the disc engagement portions and to the sealing plate engagement portions so as to have the sealing plate assembly fixed to the first and second overhanging portions, wherein each of the retaining members comprises a grasping member formed in a U-shape form and sandwiches the sealing plate with two grasping portions that face each other.