Abstract: A hockey helmet (20) comprising a front helmet portion (22) and a rear helmet portion (24) disposed to be moveable relative to each other so as to define an internal cavity of varying volume, a securing member (26) being mounted to a location on the front helmet portion (22) adjacent the temple thereof, the securing member (26) being slidable between a first or open position and a second or closed position, the rear helmet portion (24) having a restraint (28) configured and disposed to be complimentary to the securing member (26) such that when the securing member (26) cooperatively engages the restraint (28), the relative displacement of the front helmet portion (22) and the rear helmet portion (24) is inhibited. The restraint (28) comprises a number of positions in which the securing member (26) can be cooperatively engaged such that the volume of the helmet (20) may be modified.

Abstract: Systems, devices, and methods for controlling a fuel supply for a turbine or other engine using direct and/or indirect indications of power output and optionally one or more secondary control parameters.

Abstract: A gas turbine engine including a first shaft being one of a main shaft concentrically mounted to at least one turbine rotor and a tower shaft directly driven by the main shaft and extending generally radially therefrom, the first shaft having a reduced diameter portion located within the gas turbine engine, an electrical assembly having a rotor comprising permanent magnets retained on an outer surface of the reduced diameter portion and a stator comprising a magnetic field circuit disposed adjacent an outer periphery of the rotor, and an electrical connection between the magnetic field circuit and at least one of a power source and an electrically drivable accessory.

Abstract: A compressor comprises a casing having an inner surface surrounding a rotor assembly, the rotor assembly having a plurality of circumferentially spaced radially outwardly extending rotor blades, each blade having leading and trailing edges and a tip, the compressor further comprising at least one plasma actuator for suppressing rotating stall inception of the compressor, the at least one plasma actuator being mounted adjacent to the blade tips.

Abstract: An inlet tube within a gas turbine engine which includes a primary fuel channel and a secondary fuel channel formed in a cylindrical tube body. The secondary channel has a substantially crescent shaped cross-sectional area which is complementary in shape to the primary fuel channel, such as to maximize the combined fuel flow area through the primary and secondary fuel channels relative to an outer diameter of the cylindrical tube body.

Abstract: A gas turbine engine fuel conveying member in fluid flow communication with at least one fuel nozzle, the fuel conveying member having at least first and second member portions sealingly engaged to one another, and means for conveying fuel defined at a junction between the first and second member portions. The means for conveying fuel is defined by at least part of two different walls of each of the first and second member portions.

Abstract: A method and apparatus for permanent magnetic (PM) rotor crack detection includes a sensor which monitors magnetic flux distribution of the PM rotor and identifies the presence of a crack in the PM rotor when a magnetic flux distribution change or anomaly is detected.

Abstract: A gas turbine engine has a plurality of radial struts in a bypass duct. At least one strut has a scoop incorporated with the fairing of the strut and in communication with an air passage of an engine secondary air system. The scoop faces a bypass air flow to scoop a portion of the bypass air flow using available dynamic pressure in the bypass duct. Scooped air may be provided, for example, to an active tip clearance control apparatus in a long duct turbofan engine.

Abstract: The turbine blade comprises an airfoil having opposite pressure and suction sidewalls extending from a platform to a free end tip and in a chordwise direction from a leading edge to a trailing edge. The blade has two winglets extending in a chordwise direction from adjacent the leading edge to adjacent the trailing edge. Each winglet extends from the pressure sidewall upwardly and outwardly from the sidewall to provide a channel between them. Each winglet has a free end extending laterally beyond a surface defined by the pressure sidewall offset.

Abstract: A model-based object recognition system operates to recognize an object on a predetermined world surface within a world space. An image of the object is acquired. This image is a distorted projection of the world space. The acquired image is processed to locate one or more local features of the image, with respect to an image coordinate system of the image. These local features are mapped a world coordinate system of the world surface, and matched to a model defined in the world coordinate system. Annotations can be arranged as desired relative to the object in the world coordinate system, and then inverse-mapped into the image coordinate system for display on a monitor in conjunction with the acquired image. Because models are defined in world coordinates, and pattern matching is also performed in world coordinates, one model definition can be used by multiple independent object recognition systems.

Abstract: A mid turbine frame of a gas turbine engine includes an outer case which supports a spoke casing co-axially positioned therein. The spoke casing has load transfer spokes extending radially from an inner case and secured to the outer case. A load transfer device is provided to transfer load from the spokes to the outer case in addition to load transfer through a first group of fasteners securing the spokes to the outer case, thereby forming a secondary load transfer path from the spokes. The load transfer device includes an opening of the outer case into which at least some of the spokes are inserted.

Abstract: A stator vane segment, for constructing a circumferential array of like segments in a gas turbine engine, each segment in the array being separated by an axially extending joint from an adjacent segment and being releasably mounted to an outer engine casing. Each stator vane segment has: a number of vane airfoils spanning radially between an inner platform and an outer platform, and the outer platform includes: a casing mounting fastener on an outer surface and mating lateral joint edges extending between forward and aft edges.

Abstract: An active tip clearance control (ATCC) apparatus of an aircraft gas turbine engine is situated within a pressurized core case of the engine. First and second portions of bypass air flow passing through the respective compressed core compartment and the ATCC apparatus, are isolated from one another in order to improve both the ATCC performance and bypass air duct performance.

Abstract: A system and method for particle separation in a gas turbine engine centrifugal impeller bleed air system using a tangential velocity component of the compressor bleed air to centrifuge the particles radially outwardly and convey the particles circumferentially, away from a clean air outlet and towards a particle outlet where the particles are extracted from the bleed air.

Abstract: A gas turbine engine combustor liner with at least one of the inner and outer liners that is effusion cooled and has a row of groups of circumferentially spaced apart dilution holes defined therethrough. Each group is located within a respective zone of the combustor liner defined by an overlap of adjacent conical sections corresponding to the sprays of adjacent fuel nozzles.

Abstract: A method for generating electronic meeting communications for multiple formats and a messaging server for adapted in accordance with the method. The method comprises: receiving on the messaging server a first electronic meeting communication having a first meeting component in a first format, the first meeting component including event information; determining a second meeting component in a second format different from the first format, the second meeting component including substantially the same event information as the first meeting component; and sending a second electronic meeting communication comprising at least the first and second meeting components from the messaging server to one or more recipient devices.

Abstract: The oil strainer has a filtering portion and a flexible sleeve portion to which the filtering portion is connected. The flexible sleeve portion has a plurality of spigot-receiving slots on the upstream side of the strainer.

Abstract: There are provided a method and a system for illuminating one or more target in a scene. An image of the scene is acquired using a sensing device that may use an infrared sensor for example. From the image, an illumination controller determines an illumination figure, such that the illumination figure adaptively matches at least a position of the target in the image. The target is the selectively illuminated using an illumination device, according to the illumination figure.

Abstract: A method for providing application-defined notifications to a user upon receipt of an event at a device is provided. A list of applications is centrally maintained, the list defining, for each application, event identification and corresponding event notification. Whenever an event is received and identified, the corresponding event notification for the event identification is dispatched to the user.