Abstract: An air turbine starter is provided and includes a rotor including turbine blades, which is rotatable about a rotational axis, a housing including a portion thereof radially surrounding the turbine blades to define a pathway along which fluids flow to interact with the turbine blades and a containment ring affixed to an exterior of the portion of the housing radially surrounding the turbine blades.

Abstract: An accessory gearbox system for a gas turbine engine includes an accessory compressor mounted to a gearbox housing. The gearbox housing defines a seal air core, and the gearbox housing communicates a seal airflow through the seal air core.

Abstract: A blade profile section for an Air Turbine Starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge. The airfoil profile section is defined by a set of X-coordinates and Y-coordinates defined in any of Table I, Table II, Table III or Table IV scaled by a desired factor. The X-coordinate is the tangential direction, the Y-coordinate is the axial direction, and the Z-coordinate is a radial direction between an airfoil root and an airfoil tip.

Abstract: An inlet housing assembly for an Air Turbine Starter includes an outer flowpath curve of an inlet flowpath defined by a multiple of arcuate surfaces in cross-section.

Abstract: A vane profile section for an Air Turbine Starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge, the airfoil profile section defined by a set of X-coordinates and Y-coordinates.

Abstract: A planet shaft for supporting a planet gear has a supporting portion extending along a central axis and having a first outer diameter. A flange is formed at one end of the supporting portion, which has a smaller section formed about a portion of a circumference around the central axis, and an enlarged portion extending away from the central axis for a greater distance than the smaller portion. A hole to receive a lock member is formed in the enlarged portion. A planetary gear assembly including such a planet shaft is disclosed as is an air turbine starter including the planetary gear system. Further, a method of installing a planet gear and planet shaft is also disclosed and claimed.

Abstract: A turbine balance assembly has a turbine rotor and shaft. Bearings are positioned radially outwardly of the shaft. A bearing sleeve is positioned radially outwardly of the bearings, and supports the bearings. The bearing sleeve extends along an axial length defined by a rotational axis of the shaft, and has a turbine rotor end adjacent to the turbine rotor, and a remote end. A radially outwardly extending flange on the bearing sleeve extends radially outwardly of a support portion of the bearing sleeve at the turbine rotor end. The flange has a nominal outer diameter, and includes a slot for receiving an anti-rotation tab from a gear cage over a first circumferential extent. A bearing sleeve incorporates the anti-rotation feature, and a gear cage incorporates its portion of the anti-rotation feature. An air turbine starter, and a method of installing components of a turbine balance assembly are also disclosed.

Abstract: An air turbine starter includes an air turbine starter rotor rotatably located at a central axis. The rotor includes a plurality of aerodynamic surfaces extending from a platform. At least one cutting element is located in the air turbine starter such that travel of the rotor along the central axis during operation of the air turbine starter results in removal of the platform and aerodynamic surfaces from the rotor via contact between the at least one cutting element and the rotor.

Abstract: A single point lube service port component is provided and includes an elongate annular body, which is formed to define a hollow through which fluid is gravitationally drainable from a first to a second passage and first and second apertures, a seal biased to move from a non-seal position toward a seal position at which fluid communication between the first and second apertures is prevented and a chip collector body removably insertable into the hollow to prevent the gravitational fluid drainage and to urge the seal into the non-seal position.

Abstract: A connection for a rotating machine according to an exemplary aspect of the present disclosure includes an interface axially between and adjacent to a first interference fit and a second interference fit.

Abstract: An accessory gearbox system for a gas turbine engine includes a accessory compressor mounted to a gearbox housing.

Abstract: A sleeved boiler-reactor provides enhanced nucleate boiling and reduced risk of film-boiling within boiling tubes of the boiler-reactor, in the same manner as prior boiler-reactors of seam-welded construction, without the high fabrication cost incident with seam-welding, through the use of a closely wound helical shaped boiling tube structure constrained by lugs against a sleeve portion of the casing of the boiler-reactor.