Patent application number | Description | Published |
20100124495 | Turbine Engine Rotor Hub - A rotor has a central shaft having a central longitudinal axis. The rotor has a longitudinal stack of a plurality of disks surrounding the shaft. An aft hub couples the stack to the shaft. The aft hub has a proximal portion and a distal portion. The distal portion tapers at a lower characteristic half angle than does the proximal portion. | 05-20-2010 |
20100266401 | TURBINE ENGINE ROTATING CAVITY ANTI-VORTEX CASCADE - A gas turbine engine rotor drum includes spaced apart discs providing a cavity between the discs. The discs are configured to rotate in a rotational direction about an axis. An annular support is mounted on at least one of the discs and within the cavity. A cascade of relatively short anti-vortex members is mounted circumferentially on the annular support. The anti-vortex members include an outer end having a concave surface extending within the cavity radially outward from the annular support. The concave surface faces the rotational direction and promotes swirl as the rotor drum rotates. | 10-21-2010 |
20120070271 | GAS TURBINE ENGINE WITH BLEED DUCT FOR MINIMUM REDUCTION OF BLEED FLOW AND MINIMUM REJECTION OF HAIL DURING HAIL INGESTION EVENTS - A gas turbine engine includes a bleed structure which includes a forward wall and a rear structural wall to define a deposit space downstream of the bleed structure for a hail event of a predetermined duration. | 03-22-2012 |
20120171029 | TURBINE ENGINE ROTATING CAVITY ANTI-VORTEX CASCADE - A gas turbine engine rotor drum includes spaced apart discs providing a cavity between the discs. The discs are configured to rotate in a rotational direction about an axis. An annular support is mounted on at least one of the discs and within the cavity. A cascade of relatively short anti-vortex members is mounted circumferentially on the annular support. The anti-vortex members include an outer end having a concave surface extending within the cavity radially outward from the annular support. The concave surface faces the rotational direction and promotes swirl as the rotor drum rotates. | 07-05-2012 |
20130008144 | EFFICIENT, LOW PRESSURE RATIO PROPULSOR FOR GAS TURBINE ENGINES - A gas turbine engine includes a spool, a turbine coupled to drive the spool and a propulsor that is coupled to be driven by the turbine through the spool. A gear assembly is coupled between the propulsor and the spool such that rotation of the spool drives the propulsor at a different speed than the spool. The propulsor includes a hub and a row of propulsor blades that extends from the hub. The row includes no more than 16 of the propulsor blades. | 01-10-2013 |
20140144151 | Engine Compressor Wash System - A gas turbine engine includes: a compressor; a combustor downstream of the compressor along a gaspath; a turbine downstream of the combustor along the gaspath; a plurality of wash nozzles having outlets along the gaspath; and at least one inlet fitting coupled to the wash nozzles to bound a wash flowpath from an inlet port of the at least one inlet fitting to said outlets of said nozzles. The plurality of stages include: a stage upstream of blades of one compressor section; and another stage between said blades of one compressor section and blades of another compressor section. | 05-29-2014 |
20140248140 | SHIPLAP CANTILEVERED STATOR - A disclosed stator vane assembly includes a plurality of stator vane elements supported within a case about an axis. Each of the plurality of stator vane elements includes a platform having a recess on a first side and a tongue on a second side. The tongue overlaps a recess of an adjacent one of the plurality of stator vane elements with at least one of the recess and the tongue includes a crowned surface forming a seal. | 09-04-2014 |
20140345294 | GAS TURBINE ENGINE WITH BLEED DUCT FOR MINIMUM REDUCTION OF BLEED FLOW AND MINIMUM REJECTION OF HAIL DURING HAIL INGESTION EVENTS - A gas turbine engine includes a bleed structure which includes a forward wall and a rear structural wall to define a deposit space downstream of the bleed structure for a hail event of a predetermined duration. | 11-27-2014 |