METHOD AND APPARATUS FOR CLEARANCE CONTROL OF TURBINE BLADE TIP
First Claim
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1. A gas turbine comprising a casing and a shroud ring, the gas turbine comprising:
- an attachment device rigidly attached to the casing and at least one of the shroud ring and a duct attached to the shroud ring, wherein the device allows the shroud ring to expand and contract independent of the casing and provides limited net axial growth of the shroud ring.
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Abstract
A gas turbine including a casing and a shroud ring, the gas turbine including an attachment device rigidly attached to the casing and at least one of the shroud ring and a duct attached to the shroud ring, wherein the device allows the shroud ring to expand and contract independent of the casing and provides limited net axial growth of the shroud ring.
30 Citations
10 Claims
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1. A gas turbine comprising a casing and a shroud ring, the gas turbine comprising:
an attachment device rigidly attached to the casing and at least one of the shroud ring and a duct attached to the shroud ring, wherein the device allows the shroud ring to expand and contract independent of the casing and provides limited net axial growth of the shroud ring. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A gas turbine comprising a casing and a shroud ring, the gas turbine comprising:
a plurality of springs shaped generally as a “
C”
rigidly attached to the casing and at least one of the shroud ring and a duct attached to the shroud ring, wherein the device allows the shroud ring to expand and contract independent of the casing and provides limited net axial growth of the shroud ring.
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9. A method for controlling a dimension of a shroud ring in a gas turbine comprising a casing, the method comprising:
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establishing the dimension for the shroud ring; and controlling a size of the shroud ring to maintain the dimension using an attachment device rigidly attached to the casing and at least one of the shroud ring and a duct attached to the shroud ring, wherein the device allows the shroud ring to expand and contract independent of the casing and provides limited net axial growth of the shroud ring. - View Dependent Claims (10)
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Specification