초록 ▼

A gas-turbine exhaust cone includes a cone shaped outside cone 1 closed in a flow direction, an inside cone 2 arranged in the outside cone 1 over at least part of the length of the exhaust cone, with the inside cone 2 being connected to the outside cone 1 via at least one helical partition wall 3, t

A gas-turbine exhaust cone includes a cone shaped outside cone 1 closed in a flow direction, an inside cone 2 arranged in the outside cone 1 over at least part of the length of the exhaust cone, with the inside cone 2 being connected to the outside cone 1 via at least one helical partition wall 3, thereby forming an interspace 4 between the outside cone 1 and the inside cone 2. The interspace 4 is connected to inlet openings 5 at its inflow side and opens at an exit side 6 towards an interior 7 of the outside cone 1. A dampening element 8 is arranged in the outside cone 1 adjacent to the exit side 6 of the interspace 4.

대표청구항 ▼

1. A gas-turbine exhaust cone, comprising: a cone shaped outside cone closed in a flow direction;an inside cone positioned within the outside cone over at least part of a length of the exhaust cone;at least one partition wall spirally arranged between the outside cone and the inside cone and connect

1. A gas-turbine exhaust cone, comprising: a cone shaped outside cone closed in a flow direction;an inside cone positioned within the outside cone over at least part of a length of the exhaust cone;at least one partition wall spirally arranged between the outside cone and the inside cone and connecting the inside cone to the outside cone in a spaced apart manner to form an interspace between the outside cone and the inside cone;at least one inlet opening connected to the interspace at an inflow side thereof, the interspace opening at an exit side towards an interior of the outside cone; anda first dampening element positioned within an interior of the outside cone adjacent to the exit side of the interspace;wherein, the exhaust cone is a closed body other than the at least one inlet opening to prevent exhaust flow through the interspace between the inside and outside cones. 2. The gas-turbine exhaust cone of claim 1, and further comprising a plurality of spaced apart partition walls positioned between the outside cone and the inside cone, the plurality of partition walls being spirally arranged in the interspace. 3. The gas-turbine exhaust cone of claim 2, wherein the at least one inlet opening includes a plurality of inlet openings in perforation form. 4. The gas-turbine exhaust cone of claim 3, and further comprising a second dampening element positioned in an interior of the inside cone at the inflow side. 5. The gas-turbine exhaust cone of claim 4, wherein at least one of the dampening elements has a plate form, with a honeycomb structure and acts as a λ/4 resonator. 6. The gas-turbine exhaust cone of claim 5, wherein the spirally arranged partition walls are positioned at an angle of 5° to 15° to a perpendicular on a surface of one of the outside and inside cones. 7. The gas-turbine exhaust cone of claim 6, wherein at least one of the dampening elements is a high-frequency dampener. 8. The gas-turbine exhaust cone of claim 7, and further comprising an annular mounting flange connected to the outside cone at an end area on the inflow-side end area. 9. The gas-turbine exhaust cone of claim 8, wherein an interior of the exhaust cone opens to an exterior only via the plurality of inlet openings. 10. The gas-turbine exhaust cone of claim 1, wherein the at least one inlet opening includes a plurality of inlet openings in perforation form. 11. The gas-turbine exhaust cone of claim 1, and further comprising a second dampening element positioned in an interior of the inside cone at the inflow side. 12. The gas-turbine exhaust cone of claim 11, wherein at least one of the dampening elements has a plate form, with a honeycomb structure and acts as a λ/4 resonator. 13. The gas-turbine exhaust cone of claim 2, wherein the spirally arranged partition walls are positioned at an angle of 5° to 15° to a perpendicular on a surface of one of the outside and inside cones. 14. The gas-turbine exhaust cone of claim 1, wherein the first dampening element is a high-frequency dampener. 15. The gas-turbine exhaust cone of claim 1, and further comprising an annular mounting flange connected to the outside cone at an end area on the inflow-side end area. 16. The gas-turbine exhaust cone of claim 1, wherein an interior of the exhaust cone opens to an exterior only via the at least one inlet opening. 17. The gas-turbine exhaust cone of claim 1, wherein the first dampening element has a plate form, with a honeycomb structure and acts as a λ/4 resonator. 18. The gas-turbine exhaust cone of claim 11, and further comprising a bellows supporting at least one of the dampening elements to at least one of the inside and outside cones. 19. The gas-turbine exhaust cone of claim 18 and further comprising a first bellows supporting the first dampening element on the outside cone and a second bellows supporting the second dampening element on the inside cone. 20. A gas-turbine exhaust cone, comprising: a cone shaped outside cone closed in a flow direction;an inside cone positioned within the outside cone over at least part of a length of the exhaust cone;at least one partition wall spirally arranged between the outside cone and the inside cone and connecting the inside cone to the outside cone in a spaced apart manner to form an interspace between the outside cone and the inside cone;at least one inlet opening connected to the interspace at an inflow side thereof, the interspace opening at an exit side towards an interior of the outside cone; anda first dampening element positioned within an interior of the outside cone adjacent to the exit side of the interspace;a second dampening element positioned in an interior of the inside cone at the inflow side.