Abstract: The present invention relates to a computer module testability problem detection method defined: on the one hand, by first code instructions in a modeling language representing blocks, divided up into one or more components, and relationships between the blocks and/or the components, and on the other hand, by second code instructions in a textual language representing a list of specifications that are each associated with a capability and define at least one information flow at the capability.

Abstract: An air supply plenum for an engine, the plenum being disposed upstream of an air intake of the engine, the air intake being provided in a casing of the engine. The air supply plenum includes a first lateral wall and a second lateral wall which together form a conduit in which an air flow flows as the engine functions. Each lateral wall includes a step which forms a transverse recess relative to the direction of the air flow in the air supply plenum, such that an aerodynamic separation occurs in the step when the engine is operating.

Abstract: A vice-type terminal block for electrically connecting a pair of lugs by clamping them together. Each lug includes a barrel extending along an axis and a radially extending flange connected to the barrel. The flange has, on the opposite side to where the barrel is located, an electrical contact surface normal to the axis. The vice-type terminal block includes two opposing plates and a clamping system. Each plate includes a slot for receiving one of the lugs such that the flange of the lug is on one side of the plate, whereas the barrel is on the other side. The pair of lugs are supported such that their electrical contact surfaces face one another and are aligned.

Abstract: An installation for chemical vapor infiltration of porous preforms of three-dimensional shape extending mainly in a longitudinal direction, the installation comprising a reaction chamber of parallelepiped shape, the side walls of the reaction chamber including heater means and a plurality of stacks of loader devices arranged in the reaction chamber. Each loader device being in the form of an enclosure of parallelepiped shape provided with support elements for receiving porous preforms for infiltrating.

Abstract: The disclosure relates to a fixing device for fixing a first part and a second part together. The fixing device may include a nut non-rigidly coupled to the first part. The first part may have a fixing flange with at least one orifice positioned to accept a threaded shank coupled to the second part. A retainer may be proximate an inner diameter of the at least one orifice positioned to retain the nut within the fixing flange before the nut is screwed onto the threaded shank. The nut may have an externally threaded portion which may couple to the internally threaded portion of the orifice in the flange or of an element attached to the flange and to pass completely through the internally threaded portion until it is housed in a cavity for axially retaining the nut. Therefore, the nut may rotate freely before it is fastened to the threaded shank. The disclosure also relates to a turbomachine that utilizes this device and to an associated fixing method.

Abstract: A method and system for dynamic locating of a fault observed in a defective component related to a forging operation, in which: a processor models a shaping operation of a component by forging, as per a set of successive models of the component; a processor adds a fault plotter to a first model of the set of models, in a zone corresponding to a region of the fault in the defective component to obtain a first plotted model; and a processor tracks the plotter in time from the first plotted model during the modelling to locate an origin of the fault.

Abstract: The invention relates to an electric DC-DC converter suitable for being supplied with power by a primary voltage source and for supplying control electronics of a three-phase inverter with power, said three-phase inverter being configured to control a fan of a ventilation system of an aircraft. The DC-DC converter is characterised in that it comprises a transformer (16), a primary circuit (12) comprising two loops forming a symmetrical assembly, at least one secondary circuit (14) comprising a secondary winding (LS), suitable for supplying, firstly, the inverter with an output voltage equal to twice the peak voltage at the terminals of the secondary winding (LS) and, secondly, a branch of the circuit suitable for supplying the inverter with an output voltage equal to the opposite of the peak voltage at the terminals of the secondary winding (LS), and in that the controllable transistors (M1, M2) are suitable for each being switched at zero voltage.

Abstract: A turbomachine fan frame including a central hub, a plurality of radial vanes installed on the hub and distributed around the hub, each vane including an inner radial end root at which the vane is fixed to the hub, a plurality of flow stream reconstitution platforms, each platform being installed between the roots of two adjacent vanes and radially at a distance from the hub, wherein each platform is fixed to the hub by at least one support element associated with the platform, the support element located between the associated platform and the hub and located between the roots of two adjacent vanes.

Abstract: The invention relates to an infrared detection module (4) comprising: a detection portion (7) comprising an infrared detector (16) and a detector housing (11) suitable for containing the infrared detector; a cold-production portion (8) comprising a refrigerating machine (39) for cooling the detector (16) and a refrigerating-machine casing (12) suitable for containing the refrigerating machine (39); and an attachment device (56) for attaching the detector casing (11) to the refrigerating-machine casing (12), the attachment device (56) comprising a nut (57) suitable for being screwed onto the detector housing (11) and/or onto the refrigerating-machine casing (12) so as to rigidly connect the casings to one another.

Abstract: A device for filtering a flow of gas conveying liquid or solid particles in a flow channel. According to the invention, the particles are imparted a speed that is high enough to project same by inertia into the opening of a recovery channel formed inside the flow channel, while the gas from the flow bypasses said opening due to a specific configuration of the flow conditions of a perfect fluid in the flow channel and in the collection channel.

Abstract: A disconnect mechanism includes a shaft that rotationally couples a prime mover and a driven element together. The disconnect mechanism also includes a first bearing that rotationally supports the shaft and a first seize ring rigidly attached to the shaft. The first seize ring coaxially surrounds at least a portion of the shaft. The disconnect mechanism also includes a housing that retains the first bearing. The housing includes a first contact member that is fixed with relation to the shaft. The first contact member is concentrically spaced from the first seize ring during the normal operation of the shaft and selectively contacts the first seize ring when the centerline control of the shaft is not maintained. The disconnect mechanism also includes a torque activated disconnect element that rotationally decouples the prime mover and the driven element from one another when the first seize ring contacts the first contact member.

Abstract: An auxiliary switch includes a housing including a first housing part and a second housing part separate from and releasably connected to the first housing part. A printed circuit board is fixedly mounted within the housing and has an electrical pad and an electrical contact connected to the electrical pad. A terminal conductor is electrically connected to the printed circuit board. An actuator mechanism is mounted within the housing and has an electrical contactor engaged to the terminal conductor. The actuator mechanism is configured to move within the housing and at least partially displace the electrical contact while maintaining engagement between the contactor and the terminal conductor.

Abstract: An oil tank fitted to a turbomachine, for example an aeroplane turbo-jet engine. The tank includes an inner chamber containing the oil of the turbomachine, a wall with an inner surface surrounding the inner chamber, and a capacitive device for measuring the oil level. The device includes at least one electrode and potentially two parallel electrodes forming the inner surface. These electrodes are immersed in the oil to measure the oil level by measuring capacitance. A method for manufacturing a tank in which the electrodes are printed on the wall.

Abstract: A flexible metal foil can be fixed on the inside part of a variable pitch vane control ring of a turbojet compressor, so as to close all through holes in which lever pins and their surrounding bushes are housed. As a result, the foil can retain the shank of the bush if the bush breaks. The use of such foil does not impose the development of a new model of control ring and its impact on the mass is small enough so that it does not affect engine performances. Therefore it avoids problems related to the breakage of bushes without having to make major changes to the existing system.

Abstract: Described are passenger seats that include a system for storing objects disposed on a rear side of the passenger seat. The system may include a cavity and a divider wall disposed within the cavity, wherein the divider wall separates a lower portion of the cavity into at least two compartments including a personal electronic device compartment on a rear side of the cavity and a secondary compartment on a forward side of the cavity.

Abstract: The invention comprises a splitter nose of an axial turbomachine, in particular a compressor, the splitter nose comprising: an annular casing an annular conduit for de-icing a separation edge of the splitter nose; the conduit is connected to the casing only in a first zone in the region of a hot air inlet and in a second zone located in a position diametrically opposite the inlet, or forming relative to the axis of the turbomachine an angle ? less than 30° with respect to the position so as to allow expansion deformations of the conduit. The invention also comprises a compressor and a turbomachine comprising such a splitter nose.

Abstract: A coolant mixture including water and at least one of the compounds chosen from 1-methoxy-2-propanol and 1-ethoxy-2-propanol in the proportions of the corresponding azeotrope or in near-azeotropic proportions. Such a mixture can be used as a heat-transfer fluid in a heat-exchange device, which can be incorporated into an aircraft or spacecraft. A method for obtaining a mixture by fractional distillation is also disclosed.

Abstract: The invention relates to a protective sheath designed, in particular but not exclusively, for an aircraft. The conduit is flexible and can have a small radius of curvature able to be obtained without torsion and allowing access, over the majority or entirety of its length, to the electrical wire or cable inside. The protective sheath (1) comprises a flexible body generally having a cylindrical shape, the flexible body being slit along at least a certain length and along a longitudinal axis, characterised in that the body has an open-work wall and in that the sheath is capable of being deformed along its length in order to be compressed/compacted on itself.

Abstract: A variable pitch rectifier for a compressor includes a plurality of radial vanes having respectively, at outer and inner ends of same, outer and inner pivots, the inner pivots being received between two upstream and downstream inner rings, which are assembled by a link device. The link device includes only a set of angular sectors of elastically deformable stirrups, arranged to grip together the inner peripheral edges of the upstream and downstream rings by clamping one against the other.

Abstract: The invention relates to a rotary assembly for a turbomachine, comprising: a disk (16) having an external periphery exhibiting an alternation of slots (22) and of teeth (20), vanes (14) extending radially from the disk (16), the roots (24) of which are engaged axially and retained radially in the slots (22) of the disk, upstream and/or downstream of the disk, an annular sealing flange (52) of cavities (36) formed radially between, respectively, the roots of the vanes and the bottoms of the slots of the disk, said flange comprising an external part (56) arranged axially facing the upstream and/or downstream ends, respectively, of the teeth of the disk and of the roots of the vanes.