Gas turbine engine and method for cooling the compressor of a gas turbine engine
First Claim
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1. A gas turbine engine, comprising:
- a compressor including a compressor drum and rotor blades having roots connected into seats of the compressor drum, wherein at least one of the rotor blade roots and the compressor drum include longitudinal passages for a cooling fluid, the longitudinal passages connecting higher pressure areas to lower pressure areas of the gas turbine engine;
a gap downstream of the compressor drum for separating the compressor drum from a combustion chamber; and
a protrusion provided within the gap to close a compressed air path, wherein the higher pressure areas are defined between the protrusion and the compressed air path.
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Abstract
A gas turbine engine includes a compressor with rotor blades having roots connected into seats of a compressor drum. The rotor blade roots and/or the compressor drum have longitudinal passages for a cooling fluid, connecting higher pressure areas to lower pressure areas of the gas turbine engine.
11 Citations
13 Claims
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1. A gas turbine engine, comprising:
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a compressor including a compressor drum and rotor blades having roots connected into seats of the compressor drum, wherein at least one of the rotor blade roots and the compressor drum include longitudinal passages for a cooling fluid, the longitudinal passages connecting higher pressure areas to lower pressure areas of the gas turbine engine; a gap downstream of the compressor drum for separating the compressor drum from a combustion chamber; and a protrusion provided within the gap to close a compressed air path, wherein the higher pressure areas are defined between the protrusion and the compressed air path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for cooling a compressor of a gas turbine engine, including a compressor with rotor blades having roots connected into seats of a compressor drum, the method comprising:
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forming at least one of the blade roots and the compressor drum with longitudinal passages for a cooling fluid, the longitudinal passages connecting higher pressure areas to lower pressure areas of the gas turbine engine; passing a cooling fluid through the longitudinal passages; forming a gap downstream of the compressor drum for separating the compressor drum from a combustion chamber; and providing a protrusion within the gap for closing a compressed air path, for defining the higher pressure areas between the protrusion and the compressed air path.
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11. A gas turbine engine, comprising:
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a compressor including a compressor drum and rotor blades having roots connected into seats of the compressor drum, wherein the compressor drum and at least one rotor blade root each include longitudinal passages for a cooling fluid, the longitudinal passages connecting higher pressure areas to lower pressure areas of the gas turbine engine, wherein at least one of the longitudinal passages in the compressor and at least one of the longitudinal passages in the rotor blade roots have an axis parallel to an engine longitudinal axis and have the same radial distance from the axis. - View Dependent Claims (12, 13)
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Specification