Abstract: Fan (16), in particular for an aircraft cooling unit, having a wheel (128) comprising a hub (138) and an annular array of blades (140), a shaft assembly (136) for driving the wheel about an axis (A), and fusible means for connecting the hub of the wheel to the shaft assembly, said fusible connecting means comprising a first mounting sleeve through which the shaft assembly extends and which is surrounded by the hub, and fusible safety elements (174) which extend parallel to the axis (A) and are configured to break and to disengage the wheel from the shaft assembly when said wheel rotates and a driving torque of the wheel transmitted by the shaft assembly exceeds a certain threshold, characterised in that the connecting means comprise a second wearing sleeve (143) which is inserted between the first sleeve and the hub and through which the fusible elements extend, the second sleeve being made of a material which is different from that of the first sleeve and subject to wear by friction and/or by heating if the

Abstract: Fan (16), in particular for an aircraft cooling unit, having a wheel (128) comprising a hub (138) and an annular array of blades (140), a shaft assembly (136) for driving the wheel about an axis (A), and fusible means for connecting the hub of the wheel to the shaft assembly, said fusible connecting means comprising a first mounting sleeve through which the shaft assembly extends and which is surrounded by the hub, and fusible safety elements (174) which extend parallel to the axis (A) and are configured to break and to disengage the wheel from the shaft assembly when said wheel rotates and a driving torque of the wheel transmitted by the shaft assembly exceeds a certain threshold, characterised in that the connecting means comprise a second wearing sleeve (143) which is inserted between the first sleeve and the hub and through which the fusible elements extend, the second sleeve being made of a material which is different from that of the first sleeve and subject to wear by friction and/or by heating if the

Abstract: This sensor (10), capable of analyzing radar emissions RAD and communication emissions COM, includes: a reception stage (100), shared and capable of digitizing an incident signal; a primary analysis processing stage (200), shared and capable of preprocessing the digitized signal to determine a plurality of primary characteristics of the incident signal; and a secondary analysis processing stage (300), including a chain (400) for processing the preprocessed digitized signal dedicated to COM emissions and a chain (500) for processing the preprocessed digitized signal dedicated to RAD emissions, the primary analysis processing stage (200) including a discrimination module capable of applying the preprocessed digitized signal at the input of the chain (400) dedicated to COM emissions and/or of the chain (500) dedicated to RAD emissions, from primary characteristics determined for the incident signal.

Abstract: This sensor (10), capable of analyzing radar emissions RAD and communication emissions COM, includes: a reception stage (100), shared and capable of digitizing an incident signal; a primary analysis processing stage (200), shared and capable of preprocessing the digitized signal to determine a plurality of primary characteristics of the incident signal; and a secondary analysis processing stage (300), including a chain (400) for processing the preprocessed digitized signal dedicated to COM emissions and a chain (500) for processing the preprocessed digitized signal dedicated to RAD emissions, the primary analysis processing stage (200) including a discrimination module capable of applying the preprocessed digitized signal at the input of the chain (400) dedicated to COM emissions and/or of the chain (500) dedicated to RAD emissions, from primary characteristics determined for the incident signal.

Abstract: The fan comprises a first electromechanical module including a wheel supported by a shaft coupled to a driving motor, a second mechanical module including a body delimiting a space for receiving the first electromechanical module in which the wheel and the driving motor are received, and a third electronic module including a plurality of electronic components. The third electronic module includes a housing in which the plurality of electronic components is housed, the housing also comprising a deflagration protection exhaust comprising an upper wall and two inclined walls extending on either side of the upper wall so as to form a space extending substantially axially between the upper surface of the housing and the upper wall in order to allow the discharge of overpressures in case of deflagration.

Abstract: The fan comprises a first electromechanical module including a wheel supported by a shaft coupled to a driving motor, a second mechanical module including a body delimiting a space for receiving the first electromechanical module in which the wheel and the driving motor are received, and a third electronic module including a plurality of electronic components. The third electronic module includes a housing in which the plurality of electronic components is housed, the housing also comprising a deflagration protection exhaust comprising an upper wall and two inclined walls extending on either side of the upper wall so as to form a space extending substantially axially between the upper surface of the housing and the upper wall in order to allow the discharge of overpressures in case of deflagration.