Compressor injector apparatus and system
AssigneeUnited Technologies Corporation
InventorPAUL HIESTER
Life of this patent
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Abstract
Cooling systems for high pressure compressor systems are provided. The cooling systems may comprise tangential on board injectors (“TOBIs”). The TOBIs may comprise one or more fluid channels configured to conduct cooling fluid flow to components of the compressor, including, for example, disk-hub portions of the compressor. In this regard, the TOBI may be configured to exhaust cooling air in a manner such that the exhausted air has a similar linear velocity of the disk-hub portion. The cooling air may also be exhausted in a manner that is substantially parallel to the disk-hub portion.
Claims20
A compressor, comprising:
- a disk-hub;
- a stator portion;
- a rotor portion coupled to the disk hub, the rotor portion adjacent to and aft the stator portion;
- an exit guide vane adjacent to and aft the rotor portion;
- a tangential on-board injector (“TOBI”) disposed radially inward of the exit guide vane and the rotor portion, wherein the TOBI is configured to conduct a cooling flow to a section of the disk hub adjacent the stator portion.
A gas turbine engine, comprising:
- a combustor;
- a turbine in fluid communication with and configured to be driven by the combustor;
- and
- a compressor in fluid communication with and configured to supply air to the combustor, the compressor comprising:
- a disk-hub;
- a rotor portion coupled to the disk hub via a disk attachment;
- an exit guide vane adjacent to and aft the rotor;
- a tangential on-board injector (“TOBI”) disposed radially inward of the exit guide vane and the rotor portion and configured to conduct a cooling flow to a first section of the disk hub forward of the rotor, wherein the cooling flow is exhausted from the TOBI at an angle that is substantially parallel and in a direction corresponding to the rotational motion of the disk-hub.
A tangential on-board injector (“TOBI”) system, comprising:
- a first channel defined in a root of an exit guide vane;
- a second channel defined in a root of a rotor portion, the second channel in fluid communication with the first channel, the second channel configured to exhaust a cooling flow to a first section forward of rotor portion in a direction that is substantially parallel to the direction of motion of a disk-hub.
Dependencies are inferred from the claim text.