Abstract: A fluid control device includes a piezoelectric actuator and a deformable substrate. The piezoelectric actuator includes a piezoelectric element and a vibration plate. The piezoelectric element is attached on a first surface of the vibration plate and is subjected to deformation in response to an applied voltage. The vibration plate is subjected to a curvy vibration in response to the deformation of the piezoelectric element. A bulge is formed on a second surface of the vibration plate. The deformable substrate includes a flexible plate and a communication plate stacked on each other. A synchronously-deformed structure is defined by the flexible plate and the communication plate. The deformable substrate is bent in the direction away from the vibration plate. There is a specified depth maintained between the flexible plate and the bulge of the vibration plate. The flexible plate includes a movable part corresponding to the bulge of vibration plate.

Abstract: A fluid control device includes a pump and an external structure. The pump includes an actuator, a top portion opposed to the actuator such that a gap is disposed therebetween in the thickness direction, and a side wall plate extending from the top portion in the thickness direction and supporting a vibration member. The actuator includes the plate-like vibration member and a piezoelectric element configured to cause the vibration member to vibrate in the thickness direction. The top portion includes a projection portion and a fixation portion projecting beyond the side wall plate in an outward direction perpendicular to the thickness direction. The top portion is fixed to an external structure outside the projection portion.

Abstract: A device is taught for pumping fluid from a downhole reservoir up to surface. The device comprises a conduit extending through at least a portion an axial bore of the rotor unit and in communication with one or more recirculation inlets for receiving a recirculation stream of fluid and directing under pressure through the conduit, wherein an inside diameter and length of the conduit define a flow restriction; and one or more recirculation outlets defined in a stator unit downstream of the pump fluid intake, for delivering the recirculation stream of the fluid under pressure from the conduit and directing it at the pump fluid intake. A method is also taught for washing particulate from an intake end of a pump.

Abstract: An oil pressure control device for a vehicle is configured such that, when switching from an oil pressure supply by means of a mechanical oil pump driven by a motor/generator to an oil pressure supply by means of an electric oil pump driven by a sub-motor, a supply ratio of oil supplied from the mechanical oil pump and a supply ratio of oil supplied from the electric oil pump, are adjusted based on an oil pressure difference between a first oil pressure and a second oil pressure, via first and second flapper valves. When the first oil pressure becomes less than or equal to a pump drive threshold, an increase in the second oil pressure is initiated, and the first oil pressure and the second oil pressure are made to match at a predetermined equilibrium oil pressure higher than a required line pressure.

Abstract: One or more techniques and/or systems are disclosed for providing for improved liquid fuel delivery, by helping to mitigate damage to pumps when operated in an undesired condition. A sensor detects the presence of a liquid fuel at the inlet to the pump during pump operation, and sends the signal to a controller. Based on the detection signal from the sensor, the controller can determine whether a desired amount of liquid is present at the inlet to the pump. If a desired amount of liquid is not identified at the inlet to the pump, the controller may interrupt the power provided by a power supply, which is supplying power to operate the pump, thereby interrupting operation of the pump.

Abstract: A method of manufacturing a two-piece counterweight for a scroll compressor is provided. The method includes molding an outer plate, and molding a base having a first opening configured to receive a scroll compressor drive shaft having a longitudinal axis, and configuring the base for assembly and attachment to the drive shaft. The method also includes attaching the outer plate to the base such that the outer plate is axially offset from the base. In a particular embodiment of this method, the base and outer plate are molded from powdered metal. In certain embodiments, the base and outer plate include one or more openings aligned to permit attachment by inserting a mechanical fastener through the aligned openings. In alternate embodiments, the base and outer plate are attached via brazing or welding.

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

Abstract: A scroll compressor is provided that may include a motor; an orbiting scroll; a fixed scroll coupled to the orbiting scroll, and forming a compression chamber together with the orbiting scroll; a frame coupled to the fixed scroll, and configured to support the orbiting scroll; a sealing member mounting groove having a ring shape, and formed on a first surface of the frame contacting the orbiting scroll, or a second surface of the orbiting scroll contacting the frame; and a sealing member including a first sealing portion formed in a ring shape, inserted into the sealing member mounting groove so as to be moveable in an axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in the axial direction and including a second sealing portion extending from the first sealing portion in the axial direction, and configured to perform a sealing operation between the frame and the orbiting scroll in a radial direction by contacting an outer side wall surface of the sealing

Abstract: A device for compressing and expanding gases, wherein the device comprises an apparatus that can be driven in two directions, whereby in one direction the apparatus operates to compress a gas and in the other direction the apparatus operates to expand a gas.

Abstract: A diagnostic system for a compressor is provided. The compressor includes a compression mechanism and a motor. The diagnostic system includes processing circuitry and memory and may be operable to differentiate between a low-side fault and a high-side fault by monitoring a rate of current rise drawn by the motor for a first predetermined time period following compressor startup. The diagnostic system may be operable to predict a severity level of a compressor condition based on a fault history stored in the memory.

Abstract: A method of manufacturing a fluid apparatus with flanges that are fastened together may include the following steps: fastening the flanges with a fastening member; introducing a fluid into an internal space of the fluid apparatus, and plastically deforming portions of the flanges that form seats for receiving the fastening member and portions of the flanges that form mating surfaces with pressure of the fluid being applied; releasing the fastening member and correcting at least the mating surfaces out of the seats and the mating surfaces; and refastening the flanges.

Abstract: A blower assembly having a blower housing, an impeller fan within the blower housing, the impeller fan being adapted for rotation about an axis and having a plurality of impeller blades and having an axial length, a motor having a stator and a rotor, the motor having an axial length, the rotor being configured to rotate relative to the stator for rotation about the axis, the rotor and the impeller fan being coupled so that the impeller fan rotates with the rotor about the axis, wherein a ratio of the axial length of the motor to the axial length of the impeller fan is less than 0.3, and a motor support bracket operatively securing the stator to one of the first and second side walls of the blower housing.

Abstract: A vacuum pump lubricant supply system has a lubricant reservoir and a wicking element. The body portion has opposed major surfaces and a finger. The lubricant reservoir has a major surface engaging one of the opposed major surfaces of the body portion so that lubricant can migrate through the engaging major surfaces into the body portion. The finger projects from the body portion to engage a lubricant transfer device provided on a rotor shaft so that lubricant can wick from the body portion to the lubricant transfer device via the finger. The body portion has an edge provided with a cut-out so that the major surface of the body portion that engages the major surface of the lubricant container has a total surface area that is less than the total surface area of the major surface of the lubricant container.

Abstract: A pump features a two-part axial flow shaft having a static inner shaft portion and a rotating outer shaft portion; the static inner shaft portion having static diffuser vanes, and also having two shaft ends configured to affix to a frame of a pump so the static inner shaft portion does not rotate; and the rotating outer shaft portion having an outer portion configured to affix to a rotor of the pump to rotate the rotating outer shaft portion, also having rotating impeller vanes configured inside and coupled to the outer portion to move the fluid axially along the two-part axial flow shaft as the rotating outer shaft portion axially rotates in relation to the static inner shaft portion.

Abstract: A jet propulsion device includes an impeller housing, an impeller, a sleeve, a first ring-shaped elastic body, and a second ring-shaped elastic body. The first ring-shaped elastic body is disposed between the impeller housing and the sleeve, and is located between a first end and a middle of the sleeve in an axial direction of the sleeve. The second ring-shaped elastic body is disposed between the impeller housing and the sleeve, and is located between a second end and the middle of the sleeve in the axial direction of the sleeve.

Abstract: A blade outer airseal comprising a body having: an inner diameter (ID) surface; an outer diameter (OD) surface; a leading end; a trailing end; a metallic substrate; and a coating system atop the substrate along at least a portion of the inner diameter surface. At least over a first area of the inner diameter surface, the coating system comprises an abradable layer comprising a metallic matrix and a filler. The filler forms at least 20% by volume of the abradable layer with agglomerates or aggregates of oxide particles, the oxide particles having a D50 size ?200 nm.

Abstract: A method for manufacturing impellers is described. The method provides for manufacturing a plurality of tubular components, each tubular component forming an inner passage, which is shaped as one of the flow passages of the final impeller. The tubular components are assembled together forming a semi-finished impeller. The semi-finished impeller is provided with annular cavities extending around the rotation axis of the impeller and gaps between adjacent tubular components. The gaps and cavities are filled with metal powder and the semi-finished impeller is subject to hot isostatic pressing, to densify the metal powder and form a monolithic final impeller.

Abstract: A serial axial flow fan in which an end portion of a first axial flow fan on an exhaust side, and an end portion of a second axial flow fan on an intake side are connected to each other. At least either of a plurality of first blades of a first impeller of the first axial flow fan, and a plurality of second blades of a second impeller of the second axial flow fan are provided with auxiliary blade portions.

Abstract: A fan wheel has a hub cup and a plurality of blades which are arranged on the hub cup and extend radially outward from an outer wall of the hub cup which is in particular at least substantially cylindrical. Each blade has a leading edge and a trailing edge, wherein for at least one blade, an axial unit depth z*(t) of the blade has an aperiodically wave-like shape. A radiator fan module has a fan wheel of the type described above, and the fan wheel can be used in a motor vehicle.

Abstract: A casing assembly, into which a rotor rotatable around an axis is inserted, includes: a lower half casing including a lower half flange surface and a lower half accommodation recessed portion; an upper half casing including an upper half flange surface and an upper half accommodation recessed portion; a fixing portion that fixes the lower half casing and the upper half casing to each other such that, when the lower and the upper half flange surfaces make contact, the lower half accommodation recessed portion and the upper half accommodation recessed portion form an accommodation space extending about the axis; a housing disposed in the accommodation space; and a seal member disposed on an outer peripheral surface of the housing and in contact with an inner peripheral surface of the lower half accommodation recessed portion and an inner peripheral surface of the upper half accommodation recessed portion.

Abstract: A casing for a subsea compressor comprises a main body having a central axis; a plurality of interconnection flanges attached to the main body; wherein the main body comprises an inner layer made of corrosion resistant material; an outer layer applied over the inner layer and made of a composite material; wherein the outer layer extends along the entire length of said main body.

Abstract: A containment case includes a fan assembly including a hub having a plurality of fan blades extending radially outward between radially inward blade roots and radially outward blade tips. Containment case includes a radially outer shell circumscribing fan assembly and having a first radially inner surface and a radially outer surface, an inner structure having a second radially inner surface extending along first radially inner surface, and a trench extending circumferentially along second radially inner surface into inner structure from second radially inner surface. The trench is approximately axially aligned with the fan assembly. The containment case also includes, within the trench, a trench filler layer configured to dissipate impact energy from a released fan blade and having a plurality of sheets including a fibrous composite material having a plurality of fibers fabricated within each sheet, where the sheets are coupled together into a repeating pattern of hollow units.

Abstract: An annular array of turning vanes 200 is provided in a duct 100 of a gas turbine engine 10. The annular array of turning vanes 200 comprises aerodynamic vanes 220 and strut-vanes 240. The strut-vanes 240 have greater chord length and extend further axially downstream than the aerodynamic vanes 220. The leading edge of the strut-vanes 240 is upstream of the trailing edge of the aerodynamic vanes 220. The strut-vanes provide flow turning. The arrangement allows the duct 100 to be axially short.

Abstract: A centrifugal compressor includes: a casing; a compression mechanism disposed inside the casing; a flow rate regulation valve disposed inside the casing and that regulates a flow rate of air sucked into the casing; a conversion mechanism disposed outside the casing and that changes a direction of the flow rate regulation valve based on an output of an actuator; and a cover that surrounds and houses the conversion mechanism, wherein dry air is supplied to an inside of the cover, and the cover forms an air reservoir that prevents dew condensation on the conversion mechanism.

Abstract: An aerodynamic motor mount assembly enhances air flow through an air impeller by providing support members that serve the dual purpose of concentrically mounting the air impeller into a housing, and stabilizing air flow being pulled through the air impeller. The air impeller comprises rotatable blades that are defined by a frontal plane, across which air is pulled through as the blades rotate. The impelled air flow engages a substantial portion of the support members before passing through the air impeller in a linear air flow continuum. The coplanar positioning of the support members relative to the blades, the aerodynamic surfaces and edges of the support members, and the radial disposition of the support members, work to direct the air across the frontal plane of the blades. The air flow engages the support members before passing through the air impeller in a linear air flow continuum, which reduces air turbulence.

Abstract: An impeller of a centrifugal fan includes multiple blades arranged annularly around a rotational axis, a main plate, a shroud, main plate-side welded portions between main plate-side blade axial ends of the blades and the main plate, and shroud-side welded portions between shroud-side blade axial ends of the blades and the shroud. The main plate is arranged opposite to main plate-side blade axial ends. The shroud is arranged opposite to shroud-side blade axial ends. The main plate-side welded portions have main plate-side welding holes that are recesses extending through the main plate to portions of the main plate-side blade axial ends. The shroud-side welded portions have shroud-side welding holes that are recesses extending through the shroud to portions of the shroud-side blade axial ends.

Abstract: A safety device includes a connection point (21) for a pressure accumulator (1) that is connected to a bursting unit (55) at the gas end via the connection point (21). The bursting unit (55) can be triggered by a controllable force element (73). In the triggered state, the bursting unit allows the pressure accumulator (1) to be emptied at the gas end.

Abstract: An actuator controller for actuating an actuator which can be operated fluidically, having a feed line for an inflow of the working fluid to an actuator connector and having a discharge line for an outflow of the working fluid to a fluid outlet, wherein the feed line is assigned a feed line valve and the discharge line is assigned a discharge valve, which valves are configured in each case to influence a volumetric fluid flow at the actuator connector, and having a control device for actuation of the feed line valve and the discharge valve. A throughflow sensor is arranged in a line section between the discharge valve and the fluid outlet, which throughflow sensor is configured for determining a volumetric fluid flow in the discharge line and for providing a throughflow signal.

Abstract: A servo valve is provided with a first elastic portion, a second elastic portion, and a connecting portion. The first elastic portion extends in an X direction inside a valve body and has a first elastic force exerted on a movable element toward an X2 direction. The second elastic portion extends in the X direction inside the valve body and has a second elastic force exerted on the movable element toward an X1 direction. The connecting portion is connected to the first elastic portion and the second elastic portion inside the valve body, and is in abutment against a step portion of the valve body and a spool of the movable element at a neutral position of the movable element.

Abstract: An operating unit for a fluid-operated diaphragm actuator, the unit consisting of a drive diaphragm, two retaining elements flanking the drive diaphragm on opposite sides and an output rod extending through these components. The drive diaphragm is mounted on the output rod by being clamped between the two retaining elements with a predetermined clamping force, wherein each of the two retaining elements is fixed on the output rod by means of a welded connection. A method that is particularly suitable for producing such an operating unit and to a fluid-operated diaphragm actuator equipped with such an operating unit.

Abstract: A pressure vessel includes: (a) a cylindrical sidewall having a wall thickness, an inside surface, an outside surface, and the cylindrical sidewall extending between a first end and a second end, wherein one of the first end or the second end includes a sidewall edge that forms part of an outwardly opening weld groove; (b) an end cap constructed to engage the cylindrical sidewall edge, the end cap comprising an end cap edge corresponding to the sidewall edge and that, when combined with the sidewall edge, forms the outwardly opening weld groove; (c) a cylindrically extending backer bar located in support of the outwardly opening weld groove formed by the sidewall edge and the end cap edge; and (d) a weld joint formed in the outwardly opening weld groove and holding the cylindrical sidewall to the end cap. A method for welding a pressure vessel sidewall and end cap together is provided.

Abstract: Various embodiments of a hydraulic cylinder assembly, cylinder liner member and a hydraulic manifold for use with the hydraulic cylinder assembly reduce the need for external plumbing from the rear of the hydraulic cylinder assembly to the front of the hydraulic cylinder assembly. The cylinder liner member may include three bores that convey fluid from the manifold from the rear of the hydraulic cylinder assembly to the front of the assembly, conveying fluid to the retract volume of the cylinder.

Abstract: A wind turbine includes a plurality of wind turbine blades; a plurality of hydraulic actuators for controlling respective pitch angles of the wind turbine blades; a first tank storing control oil for the hydraulic actuators; a first hydraulic pump disposed between the plurality of hydraulic actuators and the first tank, for pumping the control oil; a plurality of valves each of which is provided for corresponding one of the hydraulic actuators, for controlling a supply state of the control oil to the hydraulic actuator; and a control part for controlling each of the valves. The control part is configured to, in warm-up of a pitch hydraulic system of the plurality of wind turbine blades, perform an oil transfer operation of changing the pitch angle of the wind turbine blade from a feather side toward a fine side and then returning the pitch angle to the feather side.

Abstract: An accessory clamp for use with a rod includes an accessory interface and a corresponding rod clamp. The accessory interface includes at least one of at least one accessory hook and at least one accessory T-slot. By one approach, at least one of the accessory hooks comprises a pivoting accessory hook. By one approach the rod clamp can comprise a universal rod clamp. As one example in these regards, the universal rod clamp can include a selectively variable gripping surface to accommodate a variety of rod diameters. By one approach the accessory interface and the corresponding rod clamp can pivot with respect to one another.

Abstract: The tension bracket is configured to receive an elongated fastener to provide a connection under tension between a secondary structure and a principal support structure. The bracket has a mounting base with two substantially coplanar base sections having complementary opposed adjacent edges. The sections define a plurality of fastener openings and a profile opening. A guide member integrally extends from the sections and has parallel walls disposed above and extending perpendicular to the base sections. A pair of laterally spaced reinforcement ribs project perpendicularly from the base sections. In one embodiment, the tension bracket is formed from a single sheet of metal.

Abstract: A method of permanently attaching a fastener to a plastically deformable panel includes placing a fastener shearing edge in contact with a first surface of a panel and a die assembly in contact with an opposite second surface of the panel, and penetrating the fastener shearing edge through the panel to create a hole. The fastener shearing edge is driven into a swage formed as a recess in an end face of the die assembly to deform the fastener shearing edge outwards along the swage and into contact with the second surface of the panel. A bent portion of the panel is trapped between the deformed fastener shearing edge abutting the second surface of the panel and a tapered flange formed on an outer surface of the fastener that abuts the first surface of the panel. A die assembly and driving mechanism for attaching the fastener is also provided.

Abstract: An apparatus configured to structurally replace a cracked weld in a nuclear plant may include: a first body portion that includes a first gripping portion; a second body portion that includes a second gripping portion; a wedge portion between the first and second body portions; and/or an adjustment portion. The first body portion may be configured to slidably engage the second body portion. The wedge portion may be configured to exert force on the slidably engaged first and second body portions. The adjustment portion may be configured to increase or decrease the force exerted by the wedge portion on the slidably engaged first and second body portions. When the adjustment portion increases the force exerted by the wedge portion on the slidably engaged first and second body portions, a distance between the first and second gripping portions may decrease.

Abstract: A laser welded joint has weld metal provided between a plurality of steel sheets. A chemical composition of the weld metal has predetermined components, and average hardness of the weld metal is 350 to 540 in Vickers hardness. In the weld metal, distribution density of porosities having a diameter of 2 ?m to 50 ?m is equal to or less than 5.0 pieces/mm2. In the weld metal, distribution density of oxide inclusions having a diameter of 3 ?m or more is 0.1 to 8.0 pieces/mm2.

Abstract: A device for automatically assembling a shell and a middle frame by glue includes a locating mechanism of the middle frame, a glue coating mechanism, a feed mechanism, a press-in mechanism, and a pressure-keeping mechanism. Components to be assembled are transferred among the locating mechanism of the middle frame, the glue coating mechanism, the feed mechanism, the press-in mechanism, and the pressure-keeping mechanism through manipulators. An automatic assembly line is formed by the device to assemble various components of the case body, which considerably reduces the manual assembly cost, simplifies the complicated assembly process, effectively shortens the whole production period, and improves the production efficiency.

Abstract: A connection between at least two joining partners includes an interlying joining gap, with opposite joining surfaces. At least one of the joining surfaces is wetted with an adhesive layer having incorporated and/or attached solids particles, and the remaining joining gap is filled with an inorganic and/or organic filler material.

Abstract: A snap ring is configured to retain components within a clutch assembly. The snap ring has an annular body defining an opening through a center thereof. The annular main body defines a distal-facing surface and an opposite proximal-facing surface. A number of retention features extend from the distal-facing surface of the annular main body. Each retention feature has an axially-extending body portion a radially-extending engagement portion. The engagement portion is configured to engage a backing plate. A friction clutch assembly including a snap ring pair is also provided, which includes a clutch snap ring disposed adjacent to the snap ring including the retention features.

Abstract: A screw anchor for a trussed foundation system to support single-axis trackers and other structures and related methods of driving such a screw anchor into underlying ground. A hollowed tube of uniform diameter is open at both ends with a thread form beginning at one end and circumscribing a portion the tube, the thread form having a tapered lead-in. The open-ended geometry allows a mandrel or rock drill to be inserted and operated through the anchor during driving to expedite the driving process. The tapered thread form provides a lead-in for driving the anchor into a rock bore.

Abstract: Exemplary embodiments provides a camera, having a first camera sub-assembly, a hub coupled to the first camera sub-assembly, a second camera sub-assembly coupled to the hub and rotatable relative thereto and a third camera sub-assembly coupled to the hub and rotatable relative thereto. The third camera sub-assembly can be in electrical communication with the first camera sub-assembly and/or the second camera sub-assembly via the hub. The hub can include a slot to guide electrical cable(s). Net torque acting on the camera can be zero such that one of the first rotational coupling or the second rotational coupling when rotated to a new position via an applied torque remains in the new position when the applied torque is released.

Abstract: A double-row self-aligning roller bearing has rollers interposed, in two rows aligned in a bearing width direction, between an inner ring and an outer ring. The outer ring has a spherical raceway surface. Each of the rollers has an outer circumferential surface having a cross-sectional shape that matches the raceway surface of the outer ring. The rollers have lengths equal to each other and maximum diameters equal to each other, and have different distances from centers of the roller lengths to positions at which the maximum diameters are obtained.

Abstract: A roller assembly includes two outer rings rotatably mounted on a shaft by a respective set of rollers positioned between the shaft and each of the respective one of the outer rings. The shaft has a head flange on one end thereof and a groove formed therein at a distance from the head flange. A retainer ring is positioned in the groove and another retainer ring is secured to the shaft at a distance from the groove. The retaining ring is configured to space the two outer rings apart from one another so that the two outer rings are operable and rotatable independent from one another.

Abstract: Provided is a sintered bearing, including Al, Cu, and Ni, the sintered bearing having Al—Cu—Ni alloy structures (3) sintered together. The Al—Cu—Ni alloy structures (3) each have an Al—Cu—Ni matrix phase (?-phase) and an Al—Ni compound phase (?-phase), and are free of an Al—Cu compound phase (?-phase).

Abstract: A sintered bearing exhibits a less of a hard iron alloy phase, and has an excellent wear resistance and cost performance under low-revolution and high-load use conditions. The sintered bearing contains Cu: 10 to 55% by mass, Sn: 0.5 to 7% by mass, Zn: 0 to 4% by mass, P: 0 to 0.6% by mass, C: 0.5 to 4.5% by mass and a remainder composed of Fe and inevitable impurities. An area ratio of a free graphite dispersed in a metal matrix of the bearing is 5 to 35%; an area ratio of a copper phase in the metal matrix of a bearing surface is not less than 30%; a porosity thereof is 16 to 25%; a hardness of an iron alloy phase in the matrix is Hv 65 to 200; and raw material powders employ at least one of a crystalline graphite powder and a flake graphite powder each having an average particle size of 10 to 100 ?m.

Abstract: A sintered bearing includes a cylindrical portion, one-side increased-diameter portion and another-side increased-diameter portion. A metal structure of the another-side increased-diameter portion has a higher density than a metal structure of a core portion of the sintered compact. A metal structure of the cylindrical portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the another-side increased-diameter portion. A metal structure of the one-side increased-diameter portion has an expansion along a direction of ironing by the sizing core and a higher density than the metal structure of the cylindrical portion.

Abstract: A hybrid bearing cage, suitable for high-speed applications, includes a plastic ring and a metal stiffener. Rollers, such as balls, are retained in roller retainers in the plastic ring. The roller retainers are joined by links. The metal stiffener has an annular portion and a plurality of radial extensions that extend over the links, reducing deflection and stress concentrations in the plastic ring due to centrifugal forces.

Abstract: An assembly for an epicyclic reduction gearset, including a satellite carrier, satellites, and at least one satellite bearing including a central axis linked to the satellite carrier. An inner ring mounted on the central axis, an outer ring mounted to rotate around the central axis. A lubrication circuit brings a flow of oil between the rings. The lubrication circuit includes a first portion supplied with oil with openings to the outside of the inner ring in a radially inner area of the bearing. A second portion has openings to the outside of the inner ring. An intermediate portion has at least one channeling connecting the first portion to the second portion, having at least one singular pressure reduction formed by an elbow and at least one flattening of a transverse cross-section. The central axis has a radially outer first surface. The inner ring has a radially inner second surface.