System and method for cooling turbine shroud trailing edge
First Claim
1. A shroud segment for use in a turbine section of a gas turbine engine, the shroud segment comprising:
- a body including a leading edge, a trailing edge opposite the leading edge, a first side edge, a second side edge opposite the first side edge, and a pair of opposed lateral sides between the leading and trailing edges and the first and second side edges, wherein a first lateral side of the pair of opposed lateral sides is configured to interface with a cavity having a cooling fluid, and a second lateral side of the pair of opposed lateral sides is oriented toward a hot gas flow path;
a first flow passage extending radially inward from an inlet in the first lateral side; and
a first channel disposed within the body on the second lateral side adjacent the trailing edge, wherein the first channel comprises a second flow passage in fluid communication with the first flow passage;
a third flow passage in fluid communication with the second flow passage; and
a fourth flow passage defining an outlet in the trailing edge;
wherein the second flow passage extends from upstream of the trailing edge towards the trailing edge in a first direction from the leading edge to the trailing edge, the fourth flow passage extends in the first direction from upstream of the trailing edge to the outlet in the trailing edge, and the third flow passage is a single linear passage laterally disposed between the second flow passage and the fourth flow passage and extends in a second direction different from the first direction; and
wherein the first flow passage and the first channel are configured to convey the cooling fluid from the cavity to the trailing edge to cool the trailing edge.
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Accused Products
Abstract
A shroud segment that includes a body including a leading edge, a trailing edge, a first side edge, a second side, and a pair of opposed lateral sides. A first lateral side is configured to interface with a cavity having a cooling fluid, and a second lateral side is oriented toward a hot gas flow path. The shroud segment includes at least one channel disposed within the body, wherein the at least one channel includes a first portion extending from upstream of the trailing edge towards the trailing edge in a first direction from the leading edge to the trailing edge, a second portion extending from the trailing edge to upstream of the trailing edge in a second direction from the trailing edge to the leading edge, and a third portion extending from upstream of the trailing edge towards the trailing edge in the first direction.
49 Citations
17 Claims
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1. A shroud segment for use in a turbine section of a gas turbine engine, the shroud segment comprising:
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a body including a leading edge, a trailing edge opposite the leading edge, a first side edge, a second side edge opposite the first side edge, and a pair of opposed lateral sides between the leading and trailing edges and the first and second side edges, wherein a first lateral side of the pair of opposed lateral sides is configured to interface with a cavity having a cooling fluid, and a second lateral side of the pair of opposed lateral sides is oriented toward a hot gas flow path; a first flow passage extending radially inward from an inlet in the first lateral side; and a first channel disposed within the body on the second lateral side adjacent the trailing edge, wherein the first channel comprises a second flow passage in fluid communication with the first flow passage;
a third flow passage in fluid communication with the second flow passage; and
a fourth flow passage defining an outlet in the trailing edge;wherein the second flow passage extends from upstream of the trailing edge towards the trailing edge in a first direction from the leading edge to the trailing edge, the fourth flow passage extends in the first direction from upstream of the trailing edge to the outlet in the trailing edge, and the third flow passage is a single linear passage laterally disposed between the second flow passage and the fourth flow passage and extends in a second direction different from the first direction; and wherein the first flow passage and the first channel are configured to convey the cooling fluid from the cavity to the trailing edge to cool the trailing edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A gas turbine engine comprising:
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a compressor; a combustion system; and a turbine section comprising; an outer casing; an outer shroud segment coupled to the outer casing; an inner shroud segment coupled to the outer shroud segment to form a cavity between the outer shroud segment and the inner shroud segment, the cavity being configured to receive a cooling fluid from the compressor, wherein the inner shroud segment comprises; a body including a leading edge, a trailing edge opposite the leading edge, a first side edge, a second side edge opposite the first side edge, and a pair of opposed lateral sides between the leading and trailing edges and the first and second side edges, wherein a first lateral side of the pair of opposed lateral sides is configured to interface with the cavity, and a second lateral side of the pair of opposed lateral sides is oriented toward a hot gas flow path; a plurality of channels disposed within the body, wherein each channel comprises a first flow passage extending radially inward from an inlet in the first lateral side, a second flow passage in fluid communication with the first flow passage, a fourth flow passage parallel to and laterally offset from the second flow passage and defining an outlet, and a third flow passage defining a single linear portion disposed between the second flow passage and the fourth flow passage; wherein the second flow passage, the third flow passage, and the fourth flow passage are disposed on the second lateral side adjacent the trailing edge; wherein the second flow passage and the fourth flow passage define cooling flow paths in a first direction, and the third flow passage defines a cooling flow path in a second direction different from the first direction; and wherein the plurality of channels is configured to convey the cooling fluid from the cavity to the trailing edge to cool the trailing edge. - View Dependent Claims (13, 14)
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15. A shroud segment for use in a turbine section of a gas turbine engine, the shroud segment comprising:
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a body including a leading edge, a trailing edge, a first side edge, a second side edge, and a pair of opposed lateral sides between the leading and trailing edges and the first and second side edges, wherein a first lateral side of the pair of opposed lateral sides is configured to interface with a cavity having a cooling fluid, and a second lateral side of the pair of opposed lateral sides is oriented toward a hot gas flow path; a plurality of channels disposed within the body, wherein each channel comprises a first flow passage extending radially inward from an inlet in the first lateral side, a second flow passage in fluid communication with the first flow passage, a fourth flow passage parallel to and laterally spaced from second flow passage and defining an outlet, and a third flow passage defining a single linear portion disposed between the second flow passage and the fourth flow passage; and
wherein the second flow passage and the fourth flow passage define cooling flow paths in a first direction, and the third flow passage defines a cooling flow path in a second direction different from the first direction;wherein the second flow passage, the third flow passage, and the fourth flow passage are disposed on the second lateral side adjacent the trailing edge; and wherein the plurality of channels is configured to convey the cooling fluid from the cavity to the trailing edge to cool the trailing edge. - View Dependent Claims (16, 17)
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Specification