Abstract:
The epicyclic reduction gear comprises a planetary input shaft, planet gears meshing around said shaft and supported by a planet carrier, and two transverse sides. According to the invention, the reduction gear comprises at least one fluid transfer pipe suitable for being connected to a fluid supply source and passing through the planet carrier, being linked in rotation to same, from a first of said transverse sides of the reduction gear to a second of said transverse sides of the latter in order to open on the outside of the reduction gear and dispense the fluid.
Abstract:
The device for securing and retaining at least one electrical harness in a turbomachine includes: at least one hollow profiled element that extends in one direction and has at least two slots of approximately the same dimension and; and a clamping element intended to retain the at least one harness in position in a manner parallel to the hollow profiled element. The clamping element includes: a touch-and-close tape designed to cooperate with the width of the slots so as to allow it to pass on both sides of the profiled element and; an end stop secured to the tape, the end stop preventing the tape from passing through one of the slots in the profiled element.
Abstract:
An epicyclic gear device for driving rotation of a first blade set of a turbine engine, the device: including a sunwheel centered on a longitudinal axis of the turbine engine and connected to a rotor of the engine in order to be driven in rotation; at least one planet meshing with the sunwheel; a planet carrier rotatably carrying the planet and connected to a first blade set in order to drive it in rotation; and a ring meshing with the planet; the sunwheel being connected to the rotor via a first constant velocity ball transmission joint.
Abstract:
The invention relates to a non-faired propeller turbo-engine comprising a gas generator (12) and a propulsion unit (14) which is separated from the gas generator (12) by an intermediate housing (40), the turbo-engine (10) including a housing (100) and a radially internal ferrule (44) which are coaxial, which are connected by hollow radial arms (50), said housing (100) also defining in part a gas flow duct (48) of a secondary gas flow, 1wherein each radial arm (50) is hollow and is traversed by at least one service (54) of the turbo-engine, characterised in that at least one arm (50) is traversed by a ventilation gas circulation duct (56) from the secondary gas flow and which leads to at least one component from among in particular a power turbine and a mechanical transmission of said propulsion unit.
Abstract:
The turbine engine includes respective systems for changing the pitch of the propeller blades, the system (22) for the upstream propeller including a linear actuator (23) and a transmission mechanism (24) connecting the actuator to the blades in order to transform the sliding of the actuator into a rotation of the blades, said upstream propeller (2) including a rotatable housing (19) rigidly connected to a rotatable shaft (17) supported in a static housing (27) of the turbine engine by a bearing (29) upstream of the system, and by a bearing (30) downstream of the system. Advantageously:the rotatable housing (19) of the upstream propeller includes a support (36) rigidly connected to said rotatable housing and surrounding the static housing (27),the actuator (23) is annular and fixed to the support (36) of the rotatable housing, outside the support, and the transfer mechanism comprises connecting rods (33) and rotatable radial arms (34) traversing the gaseous flow path in order to control the pitch of the blades, andthe downstream bearing (30) is provided between the static housing (27) and the support (36), inside said support (36).