초록 ▼

In a tail pipe of gas turbine combustor, the portion just in front of the outlet 104 of tail pipe of gas turbine combustor has a shape such as to be inclined with respect to the axial direction so that the direction changes from the rearward direction to the direction toward the rear in the substant

In a tail pipe of gas turbine combustor, the portion just in front of the outlet 104 of tail pipe of gas turbine combustor has a shape such as to be inclined with respect to the axial direction so that the direction changes from the rearward direction to the direction toward the rear in the substantially axial direction, and at this portion, the position of center of curvature 103 in the axial direction on the rotor side lies on the upstream side from the position of center of curvature 102 on the casing side, a bent portion of tail pipe serves as a suction duct, and the occurrence of a negative pressure zone is prevented. Also, by using the tail pipe, a combustor inner tube or a burner provided on the upstream side of the tail pipe having a straight or substantially straight axis is disposed so that the axis of the combustion inner tube or the burner makes an angle with respect to the axis of the tail pipe in such a manner that combustion gas collides with the back side of the tail pipe.

대표청구항 ▼

[ We claim:] [1.] A tail pipe of a gas turbine combustor that generates combustion gas for a turbine of the type having a rotor within a casing, the tail pipe comprising:an outlet tail pipe section for supplying the combustion gas to the rotor, wherein said outlet tail pipe section extends in an axi

[ We claim:] [1.] A tail pipe of a gas turbine combustor that generates combustion gas for a turbine of the type having a rotor within a casing, the tail pipe comprising:an outlet tail pipe section for supplying the combustion gas to the rotor, wherein said outlet tail pipe section extends in an axial direction;an upstream tail pipe section that is upstream from said outlet tail pipe section, wherein said upstream tail pipe section extends in an axial direction that defines an angle with respect to said axial direction of said outlet tail pipe section; anda bent tail pipe section connected between said outlet tail pipe section and said upstream tail pipe section, said bent tail pipe section comprising:a first side wall for being oriented toward the rotor, said first side wall defining a center of curvature, anda second side wall opposite from said first side wall and for being oriented toward the casing, said second side wall defining a center of curvature that is positioned downstream from said center of curvature of said first side wall.