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: A modular assembly for a turbine engine has an annular bearing support that is configured to be connected to a first anti-friction bearing, which is configured to be fitted around a first shaft of the turbine engine. The modular assembly further includes a second anti-friction bearing configured to be fitted around a second shaft of the turbine engine, wherein the second shaft is not parallel to said first shaft.

Abstract: A turbine engine equipped with an electrical apparatus with rotor and an epicyclic reduction gear train, includes a sun gear driven by a drive shaft about an axis of rotation, a ring gear surrounding the sun gear and configured to drive a fan shaft about the axis, and an annular row of planet gears interposed between the sun gear and the ring gear and held by a planet carrier fixed to a stator housing of the turbine engine. The stator of the electrical apparatus is fixed to the stator housing with an annular member for apparatus support. The annular member includes elongate legs that axially traverse the reduction gear. The annular member includes a first annular element for fixing to an annular flange integral with the stator housing. The stator of the apparatus has a first annular fixing flange connected integrally to opposed longitudinal extremities of the legs of the annular member.

Abstract: A hydraulic ram comprising a fixed support, a cylinder that is movable in translation relative to the support, a piston secured inside the cylinder delimiting two chambers with the cylinder and a device for supplying the chambers with hydraulic fluid upstream from the fixed support. The ram is characterized by the fact that the supply device comprises telescopic channels, each telescopic channel comprising two tubular elements sliding one into the other, a first tubular element being rigidly connected to the fixed support at one end and the second tubular element being rigidly connected to the cylinder at at least two points separated from each other along a generatrix of the cylinder. The invention is applicable to controlling the pitch of the blades of a turbine engine propeller.

Abstract: The invention relates to a hydraulic connection device comprising a part with an opening for the throughflow of hydraulic fluid and a tubular rod with an end fitting, the end fitting of the rod being hydraulically connected to the opening for the throughflow of the fluid, wherein the opening and the end fitting of the rod each have a portion of surface which is shaped so as to allow a certain angular movement between the part and the rod, a seal being inserted between said two surface portions.

Abstract: A transmission assembly including a transmission member and an oil distribution system. The transmission member includes a rotary pivot, and a pivot portion for pivoting about the rotary pivot; the oil distribution system is to receive oil feed and to transfer it to an oil reception chamber of the rotary pivot; the rotary pivot includes injection orifices putting the oil reception chamber into fluid flow communication with the gap between the rotary pivot and the pivot portion to form a fluid bearing; and the transmission assembly is for injecting oil into the gap at a first pressure into an outer portion of the gap, and at a second pressure into an inner portion of the gap, the second injection pressure being different from the first injection pressure.

Abstract: The present invention relates to a torque-measurement device for a turbine engine shaft (1) including a proof body (7) capable of being mounted on the shaft, characterized in that the proof body (7) forms a mounting for at least one acoustic-wave strain gauge (20) and is magnetized such as to allow the torque to be measured by magnetostrictive effect.

Abstract: A transmission assembly including a transmission member and an oil distribution system. The transmission member includes a rotary pivot, and a pivot portion for pivoting about the rotary pivot; the oil distribution system is to receive oil feed and to transfer it to an oil reception chamber of the rotary pivot; the rotary pivot includes injection orifices putting the oil reception chamber into fluid flow communication with the gap between the rotary pivot and the pivot portion to form a fluid bearing; and the transmission assembly is for injecting oil into the gap at a first pressure into an outer portion of the gap, and at a second pressure into an inner portion of the gap, the second injection pressure being different from the first injection pressure.

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 disclosed subject matter relates to a hydraulic and electrical interface ring for a turbine engine, characterized in that said ring comprises fluid transfer pipes which axially pass therethrough and having axial ends that form axial interlocking means, the supporting means of at least one electrical device, and at least one electrical linking connector of the device, said connector being configured to engage by axial interlocking with a complementary electrical connector of another part.

Abstract: A bearing, such as a rolling bearing, is mounted on a support mobile in translation and includes a lubrication mechanism. The lubrication mechanism includes at least one pipe delivering a lubricant, linked to a lubricant supply source, and at least partially engaging in the support mobile in translation to deliver the lubricant from the mobile support along an internal channel to the bearing, passing through an inner ring of the bearing.

Abstract: An engine includes systems for changing the pitch of propeller blades, a system for an upstream propeller including a linear actuator and a transmission mechanism connecting the actuator to the blades to transform the sliding of the actuator into a rotation of the blades, the upstream propeller including a rotatable housing rigidly connected to a rotatable shaft supported in a static housing of the turbine engine by an upstream bearing and by a downstream bearing. The rotatable housing of the upstream propeller includes a support rigidly connected to the rotatable housing and surrounding the static housing. The actuator is annular and fixed outside to the support, the transfer mechanism includes connecting rods and rotatable radial arms traversing the gaseous flow path, and the downstream bearing is radially located between the static housing and the support.

Abstract: A fan including a system for holding blades having variable pitch, in which the bases of the blades are mounted onto radial shafts of a rotor of the fan by pivots, is provided. The system includes a main body capable of being attached onto the rotor; and at least one holding arm mounted onto the main body and capable of extending inside a pivot so as to engage with the pivot in order to lock the movement of the pivot along the axis of the shaft on which the holding arm is mounted.

Abstract: A system includes a linear-displacement fluidic actuator coaxial with the propeller, and a transmission device connecting the actuator to the blades that are to be controlled. The transmission device includes at least two radial arms arranged symmetrically with respect to the actuator and connected, on the inside, to a translationally mobile part of the actuator and, on the outside, to a translationally movable rotary transmission ring which is connected to the pivot pins of the blades by intermediate connecting mechanisms that convert the translational movement of the rotary ring brought about by the actuator into a rotation of the blades of the propeller.

Abstract: A turbine engine, comprising at least one drive shaft having an axis of rotation A and configured to drive a fan wheel by means of an epicyclic reduction gear train, said reduction gear having: a sun gear configured to be driven by said drive shaft about said axis A, a ring gear surrounding the sun gear and configured to drive a fan shaft about said axis A, and an annular row of planet gears interposed between the sun gear and the ring gear and held by a planet carrier fixed to a stator housing of the turbine engine, said turbine engine also having an electrical apparatus with rotor, wherein the stator of the electrical apparatus is fixed to the stator housing by means of an annular member for apparatus support, the annular member comprising legs of an elongated shape that axially traverse the reduction gear, the annular member comprising at longitudinal extremities of the legs a first annular element for fixing to an annular flange integral with the stator housing, and wherein the stator of the apparatus

Abstract: Turbine engine (1), in particular for an aircraft, comprising at least one axial shaft (2) rotatably mounted in a casing (3) of the turbine engine (1), the turbine engine (1) comprising an annular reference part (10) comprising short (11) and long (12) longitudinal reference teeth, first means for detecting the passage of the short (11) and long (12) reference teeth so as to measure the speed of the shaft (2) of the turbine engine (1) about its axis (X), an annular measurement part (20) comprising longitudinal measurement teeth (21); and second means for detecting the passage of the long reference teeth (12) and the measurement teeth (21) so as to measure the torque of the shaft (2, 102) of the turbine engine (1).

Abstract: A device for supplying oil under pressure to a linear actuator of a turbine engine, in which the actuator includes an internal fixed portion and an external movable portion and a regulating device for regulating and supplying oil to chambers of the actuator, is provided. The regulating device is mounted radially outside the movable portion of the actuator, and the fixed portion of the actuator includes on its upstream end portion oil passage channels of which the outlets open radially outwards. The device further includes an oil distribution ring which is mounted on the upstream end portion of the fixed portion and which includes internal conduits of which the inlets communicate with the outlets of the channels of the fixed portion and the outlets open axially downstream and are connected to the regulating device.

Abstract: The device is intended to supply a rotating linear displacement actuator capable of controlling the pitch of the blades of a propeller, according to separate operating states, from a rotary power assembly, the device being arranged so as to be located between the power assembly and the actuator, along a longitudinal axis, and being connected in rotation therewith. According to the invention, the device comprises supplies for supplying fluid interacting with the power assembly and defining as many supplies as there are operating states of the actuator, and a fluid distributor to which the supplies are connected and having separate channels for transporting the fluid in the direction of the actuator according to the operating states, by a tubular equipment connected to the distributor.

Abstract: A modular assembly for a turbine engine has an annular bearing support that is configured to be connected to a first anti-friction bearing, which is configured to be fitted around a first shaft of the turbine engine. The modular assembly further includes a second anti-friction bearing configured to be fitted around a second shaft of the turbine engine, wherein the second shaft is not parallel to said first shaft.

Abstract: A device can be housed coaxially inside a sleeve in which the supplies are situated, and includes: a hollow cylindrical body that fits inside the sleeve and accepts the mechanism in the housing of the hollow body, with passages for respectively connecting the supplies to said mechanism; and a cover which is integrated or fixed, removably, on the front side of the cylindrical body and connects the hidden supplies to the respective passages of the body.