Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

Abstract: A method for intercepting calls from a remote or mobile device for customer self-support detects when users or subscribers dial one or more predetermined numbers. If the number corresponds to one of the predetermined numbers (such as a customer support number), the phone may intercept the call and display a list of potential solutions to the subscriber's problems. Various other features and embodiments art disclosed.

Abstract: A multi-engine system 10 for use on an aircraft 14 is disclosed. The system 10 may comprise a first aircraft engine 16A and a second aircraft engine 16B configured to drive at least one device 12 of the aircraft 14. A starter 20 may be coupled to one of the first and second aircraft engines 16A, 16B to assist starting of the one of the first and second aircraft engines 16A, 16B. An energy source 24 may be configured to deliver energy to the starter 20 at a rapid rate during rapid starting of the one of the first and the second aircraft engines 16A, 16B, the rapid rate being higher than a regular rate used during regular starting of the one of the first and the second aircraft engines 16A, 16B. The energy source 24 may comprise at least one supercapacitor.

Abstract: A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.

Abstract: A multi-engine system 10 for use on an aircraft 14 is disclosed. The system 10 may comprise a first aircraft engine 16A and a second aircraft engine 16B configured to drive at least one device 12 of the aircraft 14. A starter 20 may be coupled to one of the first and second aircraft engines 16A, 16B to assist starting of the one of the first and second aircraft engines 16A, 16B. An energy source 24 may be configured to deliver energy to the starter 20 at a rapid rate during rapid starting of the one of the first and the second aircraft engines 16A, 16B, the rapid rate being higher than a regular rate used during regular starting of the one of the first and the second aircraft engines 16A, 16B. The energy source 24 may comprise at least one supercapacitor.

Abstract: An electrical control system for distinguishing between an electrical fault and a shaft shear condition in a gas turbine engine, the control system including, in one aspect, a detection circuit including: two or more probes, each probe including an associated resistor having a predetermined range of resistance, and each probe being disposed in the engine adjacent a rotary mounted shaft component, where mechanical interference between one or more of the probes and the shaft component renders the associated resistor substantially non-conductive; sensor processor(s) in communication with each probe, determining a probe operational status based on a measured resistance to current conducted through each probe, and generating a fault code when the measured resistance of at least one of the plurality of probes is not within the predetermined range of resistance.

Abstract: The disclosed tools use a plurality of substantially low powered data signal transmitters and receiving tools, such as beacons to provide a location and contextually aware system. Specifically, the disclosed technology can greatly enhance personalization of information or advertising that is delivered to a user via analyzing the proximity data that is transmitted by a beacon.

Abstract: An inspection apparatus determines a location of a target object within a volume. The inspection apparatus includes a visual inspection device that determines a location of at least one reference point within the volume with respect to the visual inspection device. The visual inspection device further detects a location of the target object with respect to the visual inspection device. The visual inspection device utilizes a location of the target object with respect to the at least one reference point to determine a position of the target object within the volume. A method of locating the target object with the inspection apparatus is also provided.

Abstract: Apparatuses and methods for measuring stress or strain in a conductive material without physical contact with the material are provided. The device comprises an inductor circuit configured to induce an alternating current into the material along a first path; and a detector configured to detect a signal representative of the stress in the material along the first path when current is induced in the material.

Abstract: A method of displaying a tutorial to a user of a mobile device is disclosed. In some examples, the mobile device receives an input associated with one or more user functions of the mobile device and launches a locally based application in response to the received input. The locally based application may output instructions to the user explaining to the user how to implement the one or more user functions.

Abstract: An assembly of fuel tank and bubbler system comprises a fuel tank defining a storage volume adapted to receive fuel therein. The fuel tank comprises at least one fuel inlet, at least one fuel outlet, and at least one gas inlet adapted to be connected to an inert gas source to feed inert gas to fill an ullage in the storage volume. A bubbler system has at least one pipe extending into the fuel tank and adapted to be immersed into the fuel of the fuel tank. The pipe has a porous structure. The pipe is adapted to be connected to an inert gas source to inject inert gas via the porous structure into the fuel of the fuel tank. A method for treating fuel in a fuel tank is also provided.

Abstract: A bracing system to brace a foundation pile that is or is to be located into and extend from ground below or adjacent a building. The bracing system utilises formwork to allow an in-situe concrete block to be cast, the concrete block being supported by the ground adjacent to where the pile is located and at least substantially surrounds the pile. The concrete block is operatively connected to the foundation pile at a location of the pile that is above the ground.

Abstract: A DC motor assembly (10) with soft starting capability is provided. The assembly (10) comprises a DC motor (12) including an armature (14) and a field winding (16) adapted to be excited separately from the armature; and circuitry configured to controllably increase current flow through the field winding of the DC motor as a function of time during starting of the DC motor.

Abstract: Systems and methods for controlling a source of physiological affliction within a moving enclosed structure, such as a vehicle, which defines an interior. The system includes: at least one pressure fluctuation generator, at least one pressure sensor located to sense pressure indicative of the interior of the structure; and at least one controller configured to: determine, from the first pressure sensor information, at least one pressure disturbance within the interior of the structure; and control the at least one pressure fluctuation generator to cancel the at least one pressure disturbance within the interior of the structure. In an example, the at least one pressure disturbance includes infrasonic pressure fluctuations (infrasound). In an example, the physiological affliction includes motion sickness or nauseogenicity.

Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

Abstract: The method and apparatus for in-flight relighting of a turbofan engine involve in one aspect selectively controlling an accessory drag load on one or more windmilling rotors to permit control of the windmill speed to an optimum value for relight conditions.

Abstract: An aircraft air system includes a gas turbine engine, a bleed air duct directing compressed air bled from a compressor to an inner compartment within the aircraft, and an air contamination detector located downstream of the gas turbine engine compressor. The air contamination detector includes a visual indicator which detects the presence of a fluid contaminant within the bleed air.

Abstract: An input and processing system allows user input information such as user affinity to efficiently determine user characteristics from content as well as novel input of commands such as copy/paste on a small mobile device screen among other computing devices. A client/server is also made more efficient due to the enhanced gathering of information. Also disclosed is a system for rapid presentation of information such as barcodes at barcode scanners. A system can request multiple barcodes, coupons or the like by detecting a signal from a scanner that information presented has been read.