Abstract: The invention relates to an assembly on an engine, which comprises a first and a second piece mounted so as to rotate relative to one another. A connecting device is provided between such pieces. It comprises a first annular part defining a flange fixed to the first piece a second annular part extending substantially parallel with the axis of rotation of the engine and studs connecting the first and second annular parts together. An interface for the rotational sliding about said axis is positioned between the second annular part and the second piece. The second annular part is sectorized.

Abstract: A thrust bearing surface for a floater-style centrifugal pump is described. A thrust bearing system includes a rotatable member including a sleeve, and a flange extending radially on a downstream side of the sleeve, a swirling member on a top of the flange, the swirling member extending axially towards an impeller bottom, wherein as the swirling member rotates, the swirling member guides working fluid in an outwards and upwards direction from the swirling member. A rotating member of a thrust bearing surface includes a sleeve securable to a rotatable shaft of a stage, a flange extending radially around a top of the sleeve, and at least one swirling member extending axially downstream from a top of the flange towards a bottom of an impeller, wherein each of the at least one swirling member extends from an outer diameter towards an inner diameter of the flange.

Abstract: A surface mounted pump assembly includes a centrifugal pump having a plurality of impellers and an electric motor adapted to drive the pump such that a thrust load from the pump is transmitted to the motor.

Abstract: A seal adjustment system for a centrifugal pump includes a movable arm having two opposing ends, one end being positioned relative to a sealing mechanism of a pump and the other end being arranged for connection to a portion of the pump spaced from the sealing mechanism, and an adjustment mechanism having a first end positioned for attachment to a portion of a pump and a second end connected to the said other end of the movable arm in articulating engagement therewith, wherein activation of the adjustment mechanism provides movement of the movable arm to effect axial adjustment of a portion of the sealing mechanism of the pump.

Abstract: A method for supplying barrier fluid in a subsea motor and pump assembly is disclosed, wherein desalinated water is extracted from or downstream of a reverse osmosis device and supplied to the motor and pump assembly, alone or as mixture with ethylene glycol. A corresponding system is likewise disclosed.

Abstract: An impeller in which blades and a shroud are bonded in a stable manner. The impeller is provided with a plurality of blades disposed on a base, and a shroud disposed facing the base across the blades. The shroud has a curved shape, wherein the shroud has a flat part in the outer periphery, protuberances are provided to flat surfaces of the blades, through-holes are provided to the flat part of the shroud, and, after the protuberances are inserted through the through-holes, the flat surfaces of the blades and the flat part of the shroud are bonded together by deforming the tips of the protuberances into thermally caulked parts larger in diameter than the opening diameters of the through-holes.

Abstract: A compressor airfoil of a turbine engine having a geared architecture includes pressure and suction sides that extend in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between a tangential stacking offset and span position that defines a curve that is non-linear.

Abstract: An airfoil for a turbine engine includes pressure and suction sides that extend in a radial direction from a 0% span position at an inner flow path location to a 100% span position at an airfoil tip. The airfoil geometry corresponds to axial leading and trailing edge curves and an axial stacking offset curve. The airfoil extends from a root and a zero axial reference point corresponds to axial center of the root. XLE corresponds to an axial distance from a leading edge to the reference point at a given span position. XTE corresponds to a axial distance from a trailing edge to the reference point at a given span position. Xd corresponds to an axial stacking offset at a given span position. (XLE?Xd)/(Xd?XTE) at 100% span position is about 1 and (XLE?Xd)/(Xd?XTE) at 90% span position is about 1.

Abstract: A compressor airfoil of a turbine engine having a geared architecture includes pressure and suction sides extending in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between leading edge sweep angle and span position defined by a curve in which the leading edge sweep angle is positive at 0% span and crosses to a negative leading edge sweep angle at a span position less than 80% span. A negative sweep angle is in the forward direction, and a positive sweep angle is in the rearward direction.

Abstract: This invention concerns alignment of parts of a multi-part component such as an Intermediate Pressure Compressor (IPC) or High Pressure Compressor (HPC) casing. First and second sections (124,126) of a component (114) are provided with flanges (128,130) having contact surfaces (138,140) provided with corresponding surface profiles formed using smooth radius curves to limit the relative locations of the first and second sections (124,126).

Abstract: A gas turbine engine comprising a compressor, a compressor case surrounding the compressor and a compressor tip injector system is disclosed. The compressor tip injector system comprises a cabin blower system comprising a cabin blower compressor arranged in use to compress air used in a cabin of an aircraft and by the compressor tip injector system. The compressor case comprises one or more injectors of the compressor tip injector system through which in use air from the cabin blower compressor is injected towards blade tip ends of blades of the compressor as they rotate.

Abstract: The present application is concerned with a blading structure of a compressor of an axial turbomachine for an aircraft. The blading structure includes a wall, such as a composite internal shroud with an organic matrix, which is intended to radially delimit a primary annular flow of the turbomachine and which comprises a fastening socket. The structure additionally has a blade fastened in the fastening socket and extending radially with respect to the wall, and a fastening layer at the interface between the blade and the socket. The interface includes asperities hugging the fastening layer, so as to ensure anchoring by engagement of material in order to fasten the blade in the socket by bonding. The present application also proposes a low-pressure compressor with an internal shroud with sockets bonded to blades.

Abstract: A compressor airfoil of a turbine engine having a geared architecture includes pressure and suction sides and extends in a radial direction from a 0% span position to a 100% span position. The airfoil has a relationship between a trailing edge angle and span position that defines a curve with a non-negative slope from 0% span to 20% span corresponding to a non-decreasing trailing edge angle.

Abstract: A centrifugal pump is provided, which includes a rotor assembly and a shaft. The rotor assembly includes an injection molded body and a shaft sleeve, the rotor assembly is injection molded taking the shaft sleeve as an injection molding insert, and the impeller injection molded body and the shaft sleeve are fixed by injection molding. The rotor assembly is rotatably supported on the shaft by the shaft sleeve, and the shaft sleeve is processed by injection molding or forging. The shaft sleeve is of a hollow structure, and the shaft sleeve includes a body. A central hole is formed in the body. The shaft sleeve further includes an impeller limiting portion configured to limit a rotating movement and an axial movement of the shaft sleeve with respect to the injection molded body.

Abstract: A single-phase motor, an airflow generating apparatus, and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring-shaped yoke and multiple pole portions. A magnetic bridge or slot opening is formed between each two adjacent pole portions. An end surface of each pole portion includes an arc surface. A positioning groove is formed in each arc surface. The arc surfaces of the pole portions cooperatively form a receiving cavity. The rotor includes a rotary shaft and a permanent magnet fixed to the rotary shaft. The permanent magnet is received in the receiving cavity. The arc surfaces are located on a cylindrical surface centered around a rotation axis of the rotary shaft. The cogging torque of the motor can be reduced, thus reducing the startup current and hence the noise of the motor.

Abstract: A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.

Abstract: A blade is provided for a gas turbine engine. The blade includes an airfoil portion with at least one internal cavity and a damper located within the internal cavity. The damper includes a cantilever spring arm. A fan blade is provided for a gas turbine engine. The fan blade includes an airfoil portion with at least one internal cavity; and a damper located within the internal cavity. The damper includes a cantilever spring arm that terminates with a rub surface pad adjacent to a friction bridge between a concave pressure side and a convex suction side of the airfoil portion. A method is also provided for damping a blade of a gas turbine engine. The method includes deflecting a cantilever spring arm to contact a rub surface pad with a friction bridge between a concave pressure side and a convex suction side of an airfoil portion of the blade.

Abstract: A deployable mobile stage system with an automatic leveling system. A remote controlling device interfaces with an internal controller of the mobile stage for transforming the stage from a transport position to a deployed position. Multiple level sensors provide feedback to the controller of the stage to automatically level the stage using jacks and outriggers hydraulically or mechanically controlled by the controller. The level sensors could be 3-axis sensors which provide level data to the CPU of the internal controller, which then forms determinations as to which jacks to raise or lower, when, and at what rate.

Abstract: The invention relates to a hydraulic machine, in particular to a hydraulic motor with two working lines, from one of which a high pressure line and from the other one a low pressure line is branched off. An electronic control unit and a servo displacement unit are provided to control the displacement of the displacement volume of a drive mechanism of the hydraulic machine, wherein the displacement volume can be determinated by the displacement of a servo piston within the servo displacement unit. For this, the servo piston can be loaded at least on one side via a servo pressure line with hydraulic fluid under servo pressure, wherein the servo pressure level can be adjusted by a control spool arranged moveable within a control valve. For this, hydraulic fluid from the low pressure line or, perhaps, from the high pressure line is guidable via the control valve to the servo pressure line if a suitable control signal is available at a switching valve.

Abstract: One aspect includes an isothermal compressor that includes an isothermal body, an isothermal cavity defined by the isothermal body, a compressible membrane heat exchanger disposed within the isothermal cavity that defines at least one first fluid chamber, and an actuating assembly configured to compress the membrane heat exchanger. A further aspect includes an isothermal engine that includes the isothermal compressor.

Abstract: An actuator assembly includes a housing, an internal cavity within the housing configured to partially contain a pressurized fluid, a fluid inlet port connecting a first opening on an outer surface of the housing to the internal cavity, a fluid outlet port connecting a second opening on the outer surface of the housing to the internal cavity, and a pressure relief channel having a relief inlet and a relief outlet. The relief outlet is in fluid communication with the internal cavity and a distance between the fluid inlet port and the relief outlet is less than half a distance between the fluid inlet port and fluid outlet port.

Abstract: A vibration isolation system includes a vibration isolator configured to flow a fluid. A fluid pumping system is connected to the vibration isolator. The fluid pumping system includes a fluid flow pathway configured to flow the fluid to the vibration isolator. The fluid pumping system includes a piston assembly positioned in the fluid flow pathway. The piston assembly includes a first piston and a second piston configured to displace the fluid in opposite directions through the fluid flow pathway. The vibration isolation system includes a fluid flow augmentation system, which includes an eccentric member positioned between the first piston and the second piston. The fluid flow augmentation system is configured to control a flow of the fluid to the vibration isolator through the fluid flow pathway by controlling a displacement of the first piston and the second piston through at least a partial rotation of the eccentric member.

Abstract: A baffle assembly for an etching apparatus is disclosed. The baffle assembly comprises a ring and a lower baffle portion having a curved wall extending between a flange portion and a lower frame portion. A heating assembly may be present within the lower frame portion to control the temperature of the baffle. The baffle assembly may help confine the plasma within the processing space in the chamber. The ring may comprise silicon carbide and the lower baffle portion may comprise aluminum.

Abstract: The present disclosure describes lug clusters for composite tubes and methods for making such lug clusters. Lug clusters of the present disclosure may include a first side, a second side, and a saddle. The saddle may be placed in adjacent contact with a tube and a filament may be wound around the lug cluster and tube. The wound lug cluster and tube may be resin transfer molded. Machining may follow to remove material and finalize the shape of the lug cluster and/or tube. Thus, a lug cluster may be attached to a composite tube.

Abstract: A hollow groove pipe structure is disclosed and includes a hollow groove pipe, first fixing sliding members, second fixing sliding members, and fixing members. The hollow groove pipe has a first surface, a second surface, a third surface, and a fourth surface for surrounding a hollow space. At least two opposite surfaces have grooves, and the bottoms of the grooves are greater (wider) than the opening and provided with trough holes. The plates having a plurality of protruding portions can be clamped in the grooves. The first and second fixing sliding members having protruding portions surround and clamp the plates with the space between the two through holes of the grooves, such that the fixing members pass through the holes of the first fixing sliding member, and the holes of the groove the holes of the second fixing sliding member fix and combine the plates into a whole.

Abstract: A hardware system for assembly to form an item, such as an item of furniture. The system includes a tension adjustment device, such as a turnbuckle, which may be threadably engaged with two rods, inserted into two rod inserts located on each of the turnbuckle's two opposite sides. The rods may pass through a series of alternating base material components and spacers therebewteen to form an item's body, the turnbuckle being located, for example, in or near the middle of the two series. The ends of the rods opposite the turnbuckle may be threaded into inserts fixed in an end piece of base material of their respective series. The turnbuckle may be twisted or otherwise adjusted to secure or compress the system. A final assembly may have one or more such series and may give the illusion of a solid bar of hardware being passed through the base material.

Abstract: A structural support apparatus comprises a connection bracket comprising, a generally flat, rigid member having opposing generally flat faces and a thickness extending between the flat faces. The rigid member is attachable to a support member. An arm extends from an end of the rigid member and a finger extends from the arm and is receivable in a hollow channel formed in an attachable member of rigid material. The hollow channel is complementary in configuration to at least one of the finger and the arm and a selected recess configuration is formed between the finger, the arm and the end of the rigid member. The recess accommodates one or more lip portions of the attachable member when either the arm or the finger, are received within the hollow channel.

Abstract: The disclosure concerns grommets for use with a perforated hardboard system. The grommets are each configured to fit securely into a hole of the perforated hardboard for protecting the surface integrity of hole and to provide an improved fitment of hooks and fixtures therein. The grommets enhance longevity of the perforated hardboard system. In addition, the grommets can be used to stabilize an orientation of a hook or other fixture for improved organization and added customization options. As an added utility or benefit of the disclosed grommet, upon removing an object hanging from a fixture of the perforated hardboard system, the fixture will remain in place and not fall out of configuration with the perforated hardboard.

Abstract: A folding anchor made of at least two members consecutively inserted into an insertion hole of a panel. As leading members of the folding anchor enter the space behind the panel, they are predeterminedly repositioned relatively to their trailing members. The last member is mounted into the insertion hole. A member of the folding anchor that is not the last member comprises a fastening receiver. A fastening rod is fastened into the fastening receiver and generates pulling forces. Those pulling forces are transmitted and distributed via a stack of members of the folding anchor to a portion of the back surface of the panel, which counteracts those pulling forces.

Abstract: A method of bonding a connector to a first object includes providing the connector, the connector being separate from the first object and including a thermoplastic material; arranging the first object and the connector relative to one another so that the connector reaches from a proximal side of the object through a first opening in the object; generating and applying vibrations and mechanical pressure to the connector until a flow portion of the thermoplastic material is liquefied and caused to flow sideways radially into an open space; and removing the source of the vibrations and causing the liquefied thermoplastic material to re-solidify, resulting in the connector with a foot portion, a head portion, and a shaft portion between the foot portion and the head portion. The shaft portion extends along an axis through the first opening, and secures the connector to the first object.

Abstract: Coupling by means of which a first and a second component are connectable to each other, having the following features: a coupling bolt having a fastening end, a holding head and a supporting section arranged therebetween, in which the holding head and the supporting section are connected to each other by means of a web, which is tapered with respect to the holding head, and the fastening end is fastenable at the first component, a holder having a keyhole and an abutting portion, in which an edge of the keyhole encloses a non-planar surface, the coupling bolt is lockable in the keyhole in a form-fit manner by means of an inserting-pivoting-movement and the holder is fastenable at the second component by means of a fastening structure.

Abstract: A method of producing fastening assembly (10) including a series of layers (12, 14, 16) and a screw (18), the screw (18) having a screw head (20), a shaft (24), a thread (26) extending into a displacement tip (22) and an unthreaded shaft portion (28). The method includes screwing the screw (18) into the series of layers (12, 14, 16), the layer (14) in the series of layers (12, 14, 16) that is furthest from the screw head (20) being deformed in the screw-in direction, so that a thickness Dp of the series of layers (12, 14, 16) is increased in a region around the screw (18), and continuing to screw in the screw (18) until the screw head (20) strikes the series of layers, a maximum thickness Dp, max of the series of layers being reached at this moment and the length LF of the unthreaded shaft portion (28) being up to 10% less than and up to 30% greater than the maximum thickness Dp, max of the series of layers.

Abstract: An assembly includes a first structure having a first pin aperture and at least one first fastener aperture adjacent the first pin aperture and a second structure to attached to the first structure having a second pin aperture and at least one second fastener aperture adjacent the second pin aperture. At least one fastener is configured to pass through the first and second fastener apertures and attach the first structure to the second structure. An assembly pin passes through the first and second pin apertures and is trapped within the first and second pin apertures. A pin-securing washer having a fastener surface defining at least one fastener aperture and a pin-securing surface to secure the assembly pin within the pin apertures. The at least one fastener passes through the at least one fastener aperture of the pin-securing washer.

Abstract: The invention relates to a device for fixing objects, in particular solar panels, to a roof. The invention also relates to an assembly of such devices. The invention further relates to a method for fixing objects, in particular solar panels, to a roof.

Abstract: Systems and methods for providing a carabiner are discussed herein. While the carabiner can have any suitable component, in some cases, it includes a frame that extends between a first end and a second end, with the frame being defining an internal space, and with the frame defining a gap between the first and second end. Additionally, the carabiner includes a gate that is movably connected to the frame such that the gate is movable between a closed position (in which the gate closes the gap) and an opened position (in which it the gap is open). In some cases, a portion of the gate is configured to divide the internal space into a first and a second enclosure when the gate is in the closed position. Additionally, in some cases, the gate defines an aperture that receives the second end when the gate is closed. Other implementations are described.

Abstract: An elastic press-lock structure comprises a ring-shaped member and a connection assembly. The ring-shaped member is defined an elongated hole. The connection assembly is passed through the elongated hole of the ring-shaped member and detachably connected with the ring-shaped member. The connection assembly is pressed with a pressing force to deflect toward a first direction with an axle which is a predetermined position of the elongated hole so that the connection assembly is limited by the ring-shaped member which is deformed and the then the connection assembly is reset toward a second direction opposite to the first direction by a restoring force generated by the connection assembly while the pressing force is released.

Abstract: An endoscope includes an insertion section including a bending portion, a bending wire inserted through the insertion section and configured to bend the bending portion, a protruding portion of a suspension frame configured to pull a proximal end portion of the bending wire, and a screw that is fixed to the protruding portion, includes a hole through which the bending wire is inserted, and is configured to latch the proximal end portion of the bending wire in a state where the bending wire is rotatable in the hole around an axis of the bending wire.

Abstract: There is provided a slide bearing capable of preventing or reducing a temperature increase in lubricant. A cylindrical main bearing is formed by combining a pair of upper bearing and lower bearing and rotatably supports a crank journal. The lower bearing includes a downstream crush relief formed at a downstream end in the rotation direction of the crank journal in an inner periphery of the lower bearing; and an oil groove formed in the inner periphery of the lower bearing so as to communicate with the downstream crush relief.

Abstract: An assembly for a ball and socket joint forming a universal joint is disclosed as including a socket joint assembly comprising a first dual-ended sphere-receiving element and a second dual-ended sphere-receiving elements joined together by a flush fitting joint.

Abstract: A curved sliding unit has stable sliding performance and long service life. The curved sliding liner in a bowl shape obtained by rolling a ribbon-shaped woven cloth forms steps in the width direction of the ribbon. A curved sliding unit includes an external member, the curved sliding liner disposed inside the external member, and an internal member disposed inside the curved sliding liner.

Abstract: A swivel hanger system includes an anchor member with an anchor head disposed at an end of the anchor member and an elongated body, where at least a portion of the elongated body is configured to be inserted into a support member when the system is connected with the support member. The system also includes a swivel member with an open end extending to a hollow interior of the swivel member, where the open end is configured to rotatably couple with the anchor head such that the anchor head is located within the hollow interior and the elongated body extends through the swivel member open end. The system further includes a stop structure to limit an insertion distance at which the anchor member is inserted into the support member.

Abstract: The movable joint assembly includes a housing which extends along an axis and has an outer surface and an open interior. A ball stud is partially disposed in the open interior and projects out of the housing. A flexible and elastic boot is sealed against the outer surface of the housing and against the ball stud. A metal insert is at least partially embedded within the boot adjacent an end of the boot for resisting pull out of the boot from the housing. The boot includes a lip which is at least partially spaced axially from the insert and extends radially inwardly and is in an interference fit engagement with the outer surface of the housing for establishing a fluid tight seal of the housing and for maintaining the fluid tight seal in response to injection of a lubricant into the open interior of the housing.

Abstract: Provided is a linear motion guiding device that appropriate length and depth suitable for use condition for a tapered portion formed on an end of a guide rail are defined and a reduction in durability of a connecting portion can be surely suppressed. Therefore, in the linear motion guiding device (1), the end of the guide rail (10) is gradually reduced in a longitudinal direction to configure the tapered portion (10B), and a length L of the tapered portion (10B) is not less than 0.5 times and not more than 1.5 times a diameter r of a rolling body (30), and a depth t of the tapered portion (10B), a width direction connection level difference amount A of one guide rail (10) and another guide rail (10), a rolling body elastic deformation amount B, and a contact angle ? of the rolling body (30) relative to a raceway face (11) satisfy “t?A+(B/cos ?)”.

Abstract: A planetary gear bearing arrangement, including a planet carrier provided with a fixed bearing axis on which a planet gear is rotatably mounted via a sliding bearing that has a first antifriction layer on the axis side and a second antifriction layer on the gear side, wherein one of the two antifriction layers (8, 11) is created on a surface (10, 19) which is at least partially domed in the sliding region to reduce the edge pressure.

Abstract: A lubricating layer having wear resistance and reliability on the wear resistance, and a compressor including a lubricating layer are provided. The compressor may include a lubricating layer coated on a frictional portion between a rotational shaft and a bearing. The lubricating layer may include at least one metal phase selected from a group consisting of Titanium (Ti); and Copper (Cu), Cobalt (Co), Nickel (Ni), and Zirconium (Zr), and may be a composite structure of amorphous and nanocrystalline materials.

Abstract: This sliding bearing comprises a pair of semicircular half bearings formed into a cylindrical shape by bringing both circumferential ends thereof into contact with each other. The axial width of the half bearings is narrower in both circumferential ends and the circumferential center, and wider in the quarter parts located therebetween. During manufacturing of the half bearings, finishing by cutting processing is first performed on the parts of a flat-plate material which after formation are to become the two axial-direction end faces and the two circumferential-direction end faces of the half bearings, and thereafter, the flat-plate material is deformed into a semicircle.

Abstract: Provided is a sliding bearing that can keep the price low while maintaining a bearing property over a long period. The sliding bearing is a sliding bearing 1 having a bearing periphery portion 2 formed of a metal base material, and a resin layer 3 formed on a surface to be a sliding surface of the bearing periphery portion, wherein the metal base material is an unsintered green compact formed by compacting a raw material powder containing a metal powder capable of forming an oxide film as a major raw material, and the oxide film has been formed between particles of the metal powder by means of steam treatment or the like, and the unsintered green compact has a radial crushing strength of more than 100 MPa.

Abstract: A bearing retaining assembly for a supercharger includes a first sleeve, a second sleeve and a biasing member. The bearing retaining assembly rotatably supports an input shaft that rotates about an input shaft axis. The first sleeve can have a counterbore that receives a bearing. The second sleeve can be fixed to a cover of the supercharger. The biasing member can be disposed between the first and second sleeves. The first sleeve can selectively translate along the input shaft axis relative to the second sleeve against the bias of the biasing member.

Abstract: A rolling element bearing retention arrangement provides axial and rotational retention of a rolling element bearing within a housing. A retaining ring is received partially within circumferential grooves located on an outer ring of the rolling element bearing, and within a bore of the housing, providing axial retention. Inward and outward directed protrusions on each end of the retaining ring engage cavities within the respective circumferential grooves, providing rotational retention.

Abstract: A method for forming a propshaft assembly includes: providing a tube having an annular wall member and an axial end face; providing a yoke having body and a pair of arms that extend from the body, the body defining an annular groove having sidewalls and an end face, the sidewalls being spaced apart to receive the annular wall member; spinning at least one of the tube and the yoke while engaging the axial end face to the end face of the annular groove to plasticize a portion of the yoke and a portion of the tube; and driving the yoke and the tube together to fuse the plasticized portion of the yoke and the plasticized portion of the tube together and thereby form a friction weld; wherein the tube is fused to the yoke over portions of the yoke that correspond to the sidewalls and the end face.