Abstract: An aircraft turbomachine including a mechanical reduction gear including one sun gear, a ring gear, planet gears which are meshed with the sun gear and the ring gear, each planet gear including a first toothing for meshing with the sun gear, and a second toothing for meshing with the ring gear, the first toothing of each planet gear having a diameter greater than that of the second toothing of the planet gear, and a planet carrier, wherein the sun gear is coupled to a first rotor shaft of the turbomachine, the planet carrier is coupled to a second rotor shaft of the turbomachine, the ring gear is fixed to a stator of the turbomachine.

Abstract: An aircraft turbomachine including a mechanical reduction gear including one sun gear, a ring gear, planet gears which are meshed with the sun gear and the ring gear, each planet gear including a first toothing for meshing with the sun gear, and a second toothing for meshing with the ring gear, the first toothing of each planet gear having a diameter greater than that of the second toothing of the planet gear, and a planet carrier, wherein the sun gear is coupled to a first rotor shaft of the turbomachine, the planet carrier is coupled to a second rotor shaft of the turbomachine, the ring gear is fixed to a stator of the turbomachine.

Abstract: A sun gear for a mechanical gearbox of an aircraft turbomachine, the sun gear having an annular shape around an axis and including an internal annular part having at its internal periphery coupling grooves, an external annular part having at its external periphery at least one meshing tooth, the external part extending around the internal part, and an annular veil connecting the internal and external parts. At least one of the internal and external parts can include two independent rings, each having grooves or teeth, and the veil can have two annular branches connected respectively to the two rings.

Abstract: A method for helping to keep a drone within an authorized airspace. This method involves displaying several symbols on a display of a path estimator comprising: i) displaying an aircraft symbol showing a current position of the drone in relation to the authorized airspace; ii) displaying a boundary symbol showing a boundary of the authorized airspace in a position in relation to the aircraft symbol representative of a position of the boundary in relation to the current position of the drone; and iii) determining a geometry and displaying a path symbol showing a predicted path of the drone without changing values of an item of speed data and an item of navigation data, the geometry of the path symbol being based at least on the value of the item of speed data and the value of the item of navigation data.

Abstract: An optical guide including a first piece made from a transparent material, the first piece including on the surface an array of extraction microstructures composed of a succession of extraction microstructures arranged for projecting to a finite distance an image injected into the optical guide. Each extraction microstructure has a prismatic shape with two faces, one face being called an active surface and having a semi-reflective coating for extracting the image from the optical guide and the other face being called a passive surface and not having any semi-reflective coating. Each active surface is spherical and has an inclination smaller by a mean angle than any active surface immediately preceding in the succession of microstructures in the direction of propagation of the image in the optical guide.

Abstract: Methods and apparatus for pipeline component design are described. Input parameters and output parameters for the component design are identified. An analytic model is constructed using a design of experiments technique to represent influence of the input parameters on the output parameters. Value sets for the input parameters which meet a selection criterion for at least one of the output parameters are then identified. Finite element analysis is conducted on the identified value sets, and a pipeline component design choice is identified from results of the finite element analysis. Pipeline components are then manufactured according to the identified design.

Abstract: Methods and apparatus for pipeline component design are described. Input parameters and output parameters for the component design are identified. An analytic model is constructed using a design of experiments technique to represent influence of the input parameters on the output parameters. Value sets for the input parameters which meet a selection criterion for at least one of the output parameters are then identified. Finite element analysis is conducted on the identified value sets, and a pipeline component design choice is identified from results of the finite element analysis. Pipeline components are then manufactured according to the identified design.

Abstract: In a device for providing information to a vehicle user about various functional elements using a display screen system, having an overview image to display the functional elements, having a rotating actuator, which is assigned to the functional elements, rotatable arbitrarily around its axis for the individual selection of the functional elements, and having the property of displaying further information about the particular functional element using an axial movement of the actuator, the functional elements are marked in the overview image. The functional elements are individually selectable by a rotational movement of the actuator and an enlarged detail of the overview image containing the particular functional element is displayable as the information.

Abstract: The invention relates to a driver assistance system provided with an auxiliary system. The driver assistance system comprises detecting means for detecting information about a vehicle and influencing means for influencing a direction of movement and/or the speed of the vehicle according to information about said environment. The auxiliary system is used for issuing assistance information to the driver of the vehicle. The auxiliary system comprises recognition means for recognizing whether the driver assistance system can be operated in a reliable manner in a momentary environment state and/or in a future environment state and/or an operational state of the vehicle. The auxiliary system is connected to the recognition means and is embodied in such a manner that information can be given to the driver during operation of the vehicle if the driver assistance system cannot be operated in a reliable manner.

Abstract: In a device for providing information to a vehicle user about various functional elements using a display screen system, having an overview image to display the functional elements, having a rotating actuator, which is assigned to the functional elements, rotatable arbitrarily around its axis for the individual selection of the functional elements, and having the property of displaying further information about the particular functional element using an axial movement of the actuator, the functional elements are marked in the overview image. The functional elements are individually selectable by a rotational movement of the actuator and an enlarged detail of the overview image containing the particular functional element is displayable as the information.

Abstract: The invention relates to a driver assistance system provided with an auxiliary system. The driver assistance system comprises detecting means for detecting information about a vehicle and influencing means for influencing a direction of movement and/or the speed of the vehicle according to information about said environment. The auxiliary system is used for issuing assistance information to the driver of the vehicle. The auxiliary system comprises recognition means for recognizing whether the driver assistance system can be operated in a reliable manner in a momentary environment state and/or in a future environment state and/or an operational state of the vehicle. The auxiliary system is connected to the recognition means and is embodied in such a manner that information can be given to the driver during operation of the vehicle if the driver assistance system cannot be operated in a reliable manner.