Patent ID: 6736596
Filing Date: 2004-05-18
Classification: F01D,F05D

Abstract:
A shroud integral type moving blade of a gas turbine, the gas turbine comprising the shroud integral type moving blade and a split ring, the shroud integral type moving blade comprising:a shroud whose inner side surface is inclined along a gas path, and outer side surface is provided with a seal fin which faces an inner peripheral surface of the split ring and seals the outer side surface of the shroud from the inner peripheral surface of the split ring, wherein the shroud integral type moving blade has a structure in which the shroud is provided from a leading edge of a tip of the moving blade to a trailing edge of the tip of the moving blade and a radius of a seal fin tip end is substantially equal to a radius of a trailing edge of the shroud, the split ring has a structure in which a radius of the inner peripheral surface is slightly larger than a radius of the seal fin tip end and the radius of the trailing edge of the shroud, and a radius of the inner peripheral surface of the split ring facing the shroud at the leading edge of the tip of the moving blade is substantially the same as a radius of the inner peripheral surface facing the end of the seal fin tip.