Diffuser particle separator
AssigneeHoneywell International Inc.
InventorsThomas E. Strangman, Mark C. Morris, William C. Baker, Harry L. Kington
Life of this patent
Estimating the term…
Abstract
A diffuser particle separator may be integrated into a gas turbine engine to remove corrosive dust and salt particles from the engine's core air flow. The air flow may pass over a series of particle accumulator entrance orifices, trapping particles in a particle accumulator while allowing the air flow to continue unimpeded. Since dust deposits may become molten at high temperatures, removal of dust from the core and secondary airflow may be critical for long-life superalloy and ceramic components, particularly those with small diameter air-cooling holes and thermal barrier coatings.
Claims24
A diffuser particle separator within a turbine engine core, comprising:
- a diffuser-deswirler moving an air flow through an engine from the discharge of a compressor;
- at least one particle accumulator entrance orifice located directly upstream from a combustor and downstream from the compressor discharge, the at least one particle accumulator entrance orifice being impinged by the air flow;
- a particle accumulator in fluid communication with the particle accumulator entrance orifice, the particle accumulator accumulating and removing particles from the air flow;
- and
- a purge air duct in fluid communication with the particle accumulator, the purge air duct transporting the accumulated particles out of the engine core.
A diffuser particle separator within a turbine engine core comprising:
- a hollow toroidal-shaped particle accumulator located in a diffuser-deswirler air flow located directly upstream from a combustor.
- a plurality of particle accumulator entrance orifices formed through a surface of the accumulator which is impinged by the diffuser-deswirler air flow, the orifices communicating an exterior of the particle accumulator with an interior portion thereof and allowing particles to pass into the accumulator;
- and
- a purge air duct connecting the interior of accumulator to the atmosphere, the purge air duct transporting accumulated particles out of the engine core.
A diffuser particle separator within a turbine engine core comprising:
- a first set of particle accumulator entrance orifices formed through an inner wall portion of a diffuser-deswirler, the diffuser-deswirler being located directly upstream from a combustor;
- a first particle accumulator in fluid communication with the first set of particle accumulator entrance orifices, the accumulator collecting and removing particles from an air flow passing through the diffuser-deswirler;
- and
- a purge air duct connecting the first particle accumulator with the atmosphere, the purge air duct transporting accumulated particles out of the engine core.
A diffuser particle separator within a turbine engine core comprising:
- a first set of particle accumulator entrance orifices directly upstream from a combustor and formed through an outer wall portion of the diffuser particle separator near an exit of a diffuser-deswirler exit;
- a first particle accumulator in fluid communication with the first set of particle accumulator entrance orifices, the first particle accumulator collecting and removing particles from an air flow through the diffuser deswirler;
- and
- a purge air duct connecting the first particle accumulator with the atmosphere, the purge air duct transporting accumulated particles out of the engine core.
Dependencies are inferred from the claim text.