Gas turbine having damping clamp
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorSung Chul Jung
Life of this patent
Estimating the term…
Abstract
An exemplary gas turbine includes a rotor unit, a tie-bolt, a cooling air pipe, and a clamping member. The rotor unit includes rotor blades and rotor disks. The rotor blades are arranged on outer circumferential surfaces of the rotor blades. The tie-bolt extends along the central axis of the rotor unit through the rotor disks and fastens the rotor disks. The cooling air pipe has the tie-bolt arranged therethrough and forms a ring-shaped cooling air flow path in an internal space thereof with the tie-bolt through which a cooling air is passed. The clamping member is arranged in the ring-shaped cooling air flow path so as to support the tie-bolt with respect to the cooling air pipe.
Claims20
A gas turbine comprising:
- a rotor unit including a plurality of rotor disks and a plurality of rotor blades, the rotor blades being respectively arranged on outer circumferential surfaces of the rotor disks;
- a tie-bolt disposed along a central axis of the rotor unit and passing through the rotor disks, the tie-bolt being operable to fasten the rotor disks;
- a cooling air pipe, the tie-bolt being disposed in the cooling air pipe thereby defining a ring-shaped cooling air flow path in an internal space between the cooling air pipe and the tie-bolt, the ring-shaped cooling air flow path being operable to pass cooling air therethrough;
- and
- a clamping member disposed in the ring-shaped cooling air flow path and operable to support the tie-bolt with respect to the cooling air pipe, to pass the cooling air therethrough, and to pressurize the cooling air when the clamping member is rotated,
- wherein the clamping member includes
- an inner ring having an inner circumferential surface and an outer circumferential surface,
- an outer ring having an inner circumferential surface and an outer circumferential surface, and
- a plurality of support arms each having one end connected to the outer circumferential surface of the inner ring and another end connected to the inner surface of the outer ring.
A gas turbine comprising:
- a rotor unit including a plurality of rotor disks and a plurality of rotor blades, the rotor blades respectively arranged on outer circumferential surfaces of the rotor disks;
- a tie-bolt disposed through the rotor disks, the tie-bolt being operable to fasten the rotor disks;
- a first cooling air pipe, the tie-bolt being disposed in the first cooling air pipe thereby defining a first ring-shaped cooling air flow path in an internal space between the first cooling air pipe and the tie-bolt, the first ring-shaped cooling air flow path being operable to pass a portion of cooling air;
- a second cooling air pipe, the first cooling air pipe being disposed in the second cooling air pipe thereby defining a second ring-shaped cooling air flow path in an internal space between the second cooling air pipe and the first cooling air pipe, the second ring-shaped cooling air flow path being operable to pass a portion of the cooling air;
- a first clamping member disposed in the first ring-shaped cooling air flow path and operable to support the tie-bolt with respect to the first cooling air pipe;
- and
- a second clamping member disposed in the second ring-shaped cooling air flow path and operable to support the first cooling air pipe with respect to the second cooling air pipe, wherein the first and second clamping members are operable to pass the cooling air therethrough, and
- the first and second clamping members are operable to pressurize the cooling air when rotated,
- wherein the first and second clamping members each include
- an inner ring having an inner circumferential surface and an outer circumferential surface,
- an outer ring having an inner circumferential surface and an outer circumferential surface, and
- a plurality of support arms each having one end connected to the outer circumferential surface of the inner ring and another end connected to the inner surface of the outer ring.
Dependencies are inferred from the claim text.