Abstract: The present invention relates to a wave energy conversion apparatus for converting wave energy into a power output, comprising a floatable compliant vessel having a plurality of linear generators having ends which are interconnected at a plurality of pivot joints to provide a compliant frame structure, the plurality of linear generators being configured to produce a power output by being respectively compressed and elongated changing the relative positions of the pivot joints, an outer flexible membrane supported by and enclosing the compliant frame structure thereby defining an inner space of the floatable compliant vessel, and a power circuit arranged within the inner space and operationally connected to the linear generators to receive the power output generated by the linear generators.

Abstract: A wave energy convertor for extracting energy from ocean waves. The wave energy convertor may include a buoy arranged to oscillate relative to a reference point about an equilibrium position and a negative spring device connected between the buoy and the reference point, wherein the negative spring device is for applying a positive force in the direction of displacement when the buoy moves away from the equilibrium position.

Abstract: A power generator comprises a casing (110) that in use is deployed in an environment in which the casing is subjected to an excitation motion such as wave motion. A series of masses (101, 103a-c) is located within the casing, wherein at least a first mass is coupled to the casing by a first spring (102), each of the masses is coupled to at least one adjacent mass by a respective spring, and wherein the casing and the series of masses bring a motion of the power generator into resonance with the excitation motion. A plurality of electric machines each comprising a stator and a field source are each associated with a corresponding mass such that a relative motion of a mass and associated electric machine generates electrical power. A power takeoff circuit receives generated electrical power from the plurality of electric machines and outputs electrical power from the power generator.

Abstract: The present invention relates to a method for mounting a rear edge ridge onto a rotor blade of a wind turbine, wherein the rotor blade has a pressure and a suction side and an essentially straight trailing edge. A tongue section projecting to the rear is provided at the trailing edge to form a step each to the pressure side and to the suction side in the area of the tongue section. The rear edge ridge or part thereof is then fitted onto the tongue section, so that it is flush with the suction side or pressure side, respectively, in the area of the step.

Abstract: A heating device for protecting a bearing of a wind power generator and a bearing system, wherein the heating device is applied to a main shaft of the wind power generator that is externally provided with a bearing, and the heating device is disposed inside the main shaft at a position corresponding to the position of the bearing. The heating device includes multiple circular arc sections, a flexible heat source and a supporting device. The flexible heat source is provided between the circular arc sections and an inner wall of the main shaft. The supporting device supports the internal surface of the circular arc sections, so that the flexible heat source is closely adhered to the inner wall of the main shaft. A heat source is provided for the bearing by the heating device for bearing protection of a wind power generator and the bearing system.

Abstract: The present invention concerns a mechanism (1), comprising one support (2) including a base (3) and two mobile cog wheels (12; 22) in rotation around their respective axis (A1; A2). The axis (A1; A2) are parallel within a horizontal or vertical reference plane (P0). The cog wheels (12; 22) engage one with the other using a unitary transmission ratio and are mobile in rotation (R1; R2) in opposing directions. The mechanism (1) is characterized in that it comprises two eccentric elements (14; 24) integral with the cog wheels (12; 22) in rotation (R1; R2) and generating moments (M1; M2) of gravity force (P1; P2) around their respective axis (A1; A2); in that the moments (M1; M2) have a same value and a same direction, both being variable depending on their angular position around the axis (A1; A2); and in that for each angular position of the cog wheels (12; 22) and of the eccentric elements (14; 24) around the axis (A1; A2), the mechanism (1) presents an equilibrium configuration at rest.

Abstract: The present invention concerns a mechanism (1), comprising: one support (2) including a base (3), one pendulum (4), and connecting suspension rods (5) articulated on the base (3) and on the pendulum (4); two mobile cog wheels (12; 22) in rotation around their respective axis (A1; A2); two eccentric elements (14; 24) integral with the cog wheels (12; 22) in rotation and generating moments of gravity force around their axis (A1; A2); and one connecting link rod (60; 160) comprising a rotary head (62) and an eccentric head (63). The axis (A1; A2) are parallel within a horizontal or vertical reference plane (P0). The pendulum (4) supports the axis (A1; A2) of the cog wheels (12; 22) and of the eccentric elements (14; 24). The connecting rods (5) are slanting in accordance with an angle comprised between 45 degrees and 80 degrees in relation to a vertical plane. The cog wheels (12; 22) engage one with the other using a unitary transmission ratio and are mobile in rotation in opposing directions.

Abstract: Hall thrusters with conductive coatings are disclosed. A Hall thruster comprises magnetic shielding in order to avoid collisions with the inner walls of its discharge chamber. By removing the source of erosion, the walls of the chamber can be removed reducing mass, cost and complexity of the thruster. A conductive coating, such as an aluminum coating, is deposited on inner screens between the discharge chamber and the magnetic poles of the thruster. The magnetic field within the chamber shields the conductive coating deposited on the inner and outer screens of the chamber.

Abstract: A vacuum pumping system comprises a plurality of vacuum pumping arrangements for evacuating an enclosure and an auxiliary vacuum chamber for evacuation by at least one first vacuum pumping arrangement. The vacuum pumping system has a first state for evacuating the enclosure and a second state for conserving power consumed by the system. In a first stage of the second state the first vacuum pumping arrangement is arranged to evacuate an exhaust of at least one second vacuum pumping arrangement and in a second stage the exhaust of the first pumping arrangement is arranged to be evacuated by the auxiliary vacuum chamber.

Abstract: A method for producing at least one deformable membrane micropump including a first substrate and a second substrate assembled together, the first substrate including at least one cavity and the second substrate including at least one deformable membrane arranged facing the cavity. In the method: the cavity is produced in the first substrate; then the first and second substrates are assembled together; then the deformable membrane is produced in the second substrate.

Abstract: There is provided a tube pump including: a first roller unit and a second roller unit that rotate around an axis while being in contact with a tube; a drive shaft coupled to the first roller unit; a drive cylinder arranged on an outer peripheral side of the drive shaft and coupled to the second roller unit; a first drive unit that rotates a first drive shaft around a first axis; a second drive unit that rotates a second drive shaft around a second axis; and a transmission mechanism that transmits a drive force of the second drive shaft to an outer peripheral surface of the drive cylinder, in which the first drive unit and the second drive unit are arranged so that a first arrangement position of the first drive unit and a second arrangement position of the second drive unit in a first axis direction overlap with each other.

Abstract: A relief valve assembly includes a housing assembly defining a chamber therein. The relief valve assembly includes a piston. The piston may be at least partially disposed within the chamber. The relief valve assembly includes a pilot inlet. The pilot inlet may be configured to provide a pilot pressure proximate a second end of the chamber. The relief valve assembly includes an overpressure inlet sealed from a first end of the chamber by the piston. The overpressure inlet may be configured to provide an inlet pressure which may actuate the piston when the inlet pressure exceeds the pilot pressure.

Abstract: A valve assembly for a diaphragm pump reduces leakage while providing good flow-through by including shaping of the seat and/or the valve that increases the elastic tension between the valve and seat in outer regions of the valve assembly, thereby providing a more optimal tension over the entire valve. In embodiments, outer regions of the seat are more steeply sloped upward than inner regions while the valve is substantially uniform in slope. In other embodiments, valve outer regions are less steeply sloped upward, or more steeply sloped downward, than its inner regions, and the seat is substantially uniform in slope. A vertical cross section of the seat and/or valve can include continuous curvature and/or discrete changes in linear slope. In some embodiments, two linear slopes are included in the vertical cross section of the seat or valve. The pump can be a multi-chamber pump.

Abstract: A pump, comprising a pump insert which is arranged in an accommodating space of a cup-shaped pump housing. The pump insert comprises a first housing part and a second housing part between which a rotor is rotatably arranged, and a stroke ring which surrounds the rotor and is arranged between the first housing part and the second housing part. A spring flexing along the rotational axis is arranged between the accommodating housing and the second housing part. The spring comprises a spring structure which is made of metal and which imbues the spring with its essential spring characteristics along the rotational axis. The spring is supported towards the second housing part in a region which is arranged in axial alignment with the stroke ring in the direction of the rotational axis, and thus presses the second housing part against the stroke ring.

Abstract: A scroll compressor includes fixed and movable scrolls having a fixed and movable side plates and fixed and movable side laps to form first and second compression chambers. The fixed-side plate includes a discharge port and a relief hole extending from the front face through to the back face. The relief hole communicates for a predetermined amount of time with each of the first and second compression chambers and is shared by the first and second compression chambers. The front face of the movable-side plate includes a recessed part allowing the second compression chamber and the discharge port to communicate. The second compression chamber, during a latter stage of compression, and the discharge port communicating via a gap formed between a tip of the fixed-side lap and the recessed part before communicating via a side face gap formed between the fixed-side lap and the movable-side lap.

Abstract: The objective of the present invention is to provide a scroll-type fluid machine for which the service life can be improved by reducing the load applied to a rotation prevention mechanism.

Abstract: A supercharged internal combustion engine has a supercharger operable to selectively supply a mass of air from below through above atmospheric air pressure according to the operating requirements of the engine. The supercharger has a shuttle combined with a throttle valve that controls the mass of air directed to an air mass bypass opening and supplied to the internal combustion engine. The shuttle has rollers that ride on rails that allow the shuttle to move to open and close the air mass bypass opening in communication with a casing that directs a mass of atmospheric air and a bypass mass of air interfused with the mass of atmospheric air to an air mass inlet of the supercharger.

Abstract: Apparatus (10) and a method for supporting one or more turbomachines, with the apparatus including a first package (12) module including a first frame (32) and a fluid-handling machinery mount coupled to the first frame, the fluid-handling machinery mount being configured to support one or more fluid-handling machines (42). The apparatus also includes a second package module (14) including a second frame (38) and a heat exchanger mount coupled to the second frame, the heat exchanger mount being configured to support one or more process fluid coolers (46), and the second package module being coupled to the first package module. The apparatus further includes an access passage (16) extending between the first and second modules and configured to enable personnel to proceed therethrough.

Abstract: The present invention describes methods to fabricate actuators that can be remotely controlled in an addressable manner, and methods to provide remote control such micro-actuators. The actuators are composites of two permanent magnet materials, one of which is has high coercivity, and the other of which switches magnetization direction by applied fields. By switching the second material's magnetization direction, the two magnets either work together or cancel each other, resulting in distinct “on” and “off” behavior of the devices. The device can be switched “on” or “off” remotely using a field pulse of short duration.

Abstract: A turbocharger including, a turbine wheel (10), a shaft (111) attached to the turbine wheel (10), and a compressor wheel (132) disposed on the shaft (111) opposite the turbine wheel (10). The compressor wheel (132) includes a back wall (134) and an axial bore (137) and a pilot washer (150) is located adjacent the compressor wheel back wall (134). The pilot washer (150) has an inner diameter (162) and an outer diameter (160), and includes a conical pilot ring (154) that extends into the axial bore (137) of the compressor wheel (132). The pilot washer (150) includes a slit (164) extending from the inner diameter (162) to the outer diameter (160). A nut (113) is threaded to the shaft (111) and is operative to provide an axial clamping force on the compressor wheel (132), thereby causing the pilot washer (150) to contract onto the shaft (111) as the pilot ring (154) extends into the bore (137).

Abstract: A blower is designed such that a backflow of air from a ventilation path into a cooling-air exhaust path is prevented by a fan-side rib and an electric motor casing-side rib. The electric motor casing-side rib is formed on an external side of the fan in a fan radial direction such that a distance between the fan-side rib and the electric motor casing-side rib in the fan radial direction becomes long. Accordingly, a flow of an electric-motor cooling air is less disturbed, and the electric-motor cooling air can be secured sufficiently. As a result, an electric motor can be cooled sufficiently, an abrasion of a brush is restricted, and a copper powder of a material making the brush is prevented from flowing into the ventilation path with the electric-motor cooling air.

Abstract: A regulator assembly, comprising a vaned diffuser, a motor, a driving gear engaged with a driven gear, the driven gear having rectangle-shaped through holes thereon, the rectangle-shaped through holes disposed and extending along an axis of the driven gear, and a regulating mechanism including a regulator, a supporting member, wherein the regulator is sleeved on the supporting member, and wherein the vaned diffuser is fixed on the supporting member, and regulator sliding members fixed to the regulator through the rectangle-shaped through holes of the driven gear, whereby the motor is configured to drive the driving gear to rotate, the driving gear is configured to drive the driven gear to rotate, the driven gear is configured to push the regulator sliding members to move, and the regulator sliding members are configured to drive the regulator to rotate relative to the vaned diffuser, thus driving the regulator to move along its axis.

Abstract: Disclosed herein are a surge prevention apparatus and method for a centrifugal compressor. The surge prevention apparatus includes a control unit for controlling a gas provision operation based on a flow rate and pressure on an inlet side of a compressor and pressure on an outlet side of the compressor, and a gas provision unit for storing a part of gas flowing into the inlet side of the compressor and providing the stored gas to the inlet side in response to a control signal from the control unit.

Abstract: Disclosed is a pump having a pump rotor rotatably supported about an axis of rotation in a pump stator. In this respect, the pump rotor is designed and is arranged above a rotor shaft in a shaft bearing such that a lubricating film of a lubricating fluid formed from the pump fluid can be formed in a lubricating ring gap between the rotor shaft and the shaft bearing. In accordance with the invention, a separation device is provided at the rotor shaft by which a predefinable quantity of the ingredient can be separated from the pump fluid by means of a centrifugal force in the operating state for providing the lubricating fluid.

Abstract: A well pump assembly has a submersible well fluid pump, motor, and seal section with a seal section shaft for transferring rotation of a motor drive shaft to a pump drive shaft. The seal section has a shaft passage through which the seal section shaft extends. A movable compensating element has an interior containing motor lubricant that is in fluid communication with motor lubricant in the motor and also in fluid communication with motor lubricant in the shaft passage. A shaft seal restricts well fluid from entry into the shaft passage. A lubricant pump driven by the shaft has a discharge within the shaft passage below the shaft seal. A recirculation passage extends from the shaft passage at a point between the discharge of the lubricant pump and the shaft seal to the interior of the compensating element.

Abstract: A seal assembly for a dual-flow compressor is provided. The seal assembly may include an annular body disposed about a rotary shaft between a first compression assembly and a second compression assembly of the dual-flow compressor. An inner radial surface of the annular body and an outer radial surface of the rotary shaft may at least partially define a radial clearance therebetween. The annular body may have a first seal section and a second seal section at a first axial end portion and a second axial end portion thereof, respectively. The first and second seal sections may at least partially define a cavity therebetween. The seal assembly may also include a reference line communicably coupling the cavity with an inlet of the first compression assembly and configured to at least partially generate a pressure differential between the cavity and an outlet of the first compression assembly.

Abstract: A high-efficiency compressor section (10) for a gas turbine engine is disclosed. The compressor section includes a vane carrier (12) adapted to hold ring segment assemblies (16) that provide optimized blade tip gaps (28,29) during a variety of operating conditions. The ring segment assemblies include backing elements (30) and tip-facing elements (32) urged into a preferred orientation by biasing elements (40) that maintain contact along engagement surfaces (44,46). The backing and tip-facing elements have thermal properties sufficiently different to allow relative growth that strategically forms an interface gap (42) therebetween, resulting in blade tip gaps that are dynamically adjusted operation.

Abstract: A compressor in a turbocharger for an internal combustion engine includes a compressor wheel that includes a central hub having a centerline, a root portion and an end portion. A plurality of blades is formed around the central hub. The plurality of blades includes a group of full-blades extending from the root portion of the central hub up to a maximum distance from the root portion along the centerline, a group of partial-blades extending to an area along the centerline that is between 40% and 55% of the maximum distance along the centerline, and a group of half-blades extending to an area along the centerline that is between 55% and 70% of the maximum distance. The plurality of blades is organized in repeating sets of blades arranged around the compressor wheel, each repeating set including at least one full-blade, at least one half-blade and at least one partial-blade.

Abstract: An intake channel arrangement includes an intake channel. The intake channel includes a first end with a first inner diameter, and a second end with a second inner diameter, the second inner diameter being smaller than the first inner diameter, a cross-sectional flow area and an adapter section arranged between the first and second ends, a first channel portion with a surface and the first inner diameter, an annular convex curvature surface joining at an angle to the surface of the first channel portion, the angle being 90°-110° between the surface of the first channel portion and a tangent of the convex curvature surface having a tangent point in an intersection of the surface of the first channel portion and the convex curvature surface, the annular convex curvature surface reducing the cross-sectional flow area from the first inner diameter to the second inner diameter.

Abstract: The centrifugal pump (1) includes several pump stages which are arranged axially between a head part (4) and a foot part (2). An outer casing (3) peripherally surrounds the pump stages. An axial end of the outer casing (3) is fastened on the head part and the other axial end of the outer casing (3) is fastened on the foot part. A mechanical connection between the head part (4) and the foot part (2) is formed by the outer casing (3).

Abstract: Disclosed is a method and system that compresses ionized gas is stored in at least one containment cell. The compressed ionized gas is transferred from the at least on containment cell to an expansion chamber in which a piston is situated; The piston moves based in part on a reaction between ionized gas in the expansion chamber and an electrical charge of a surface of a head of the piston. The movement of the piston drives a drive shaft. Movement of the drive shaft is converted to electrical energy.

Abstract: A gas and liquid-tight inlet connector to the inner chamber of a mufti-chamber pressure vessel is provided, comprising: a male gland extending through an orifice in the bottom of the flexible wall of the inner chamber and the lower wall of the rigid outer shell of the vessel, the male gland comprising an upper flange permanently, sealingly connected, with the lower surface of the flexible inner wall, so as to form a gas- and liquid-tight seal therewith, and a lower elongated member extending through the outer shell to be sealingly connected with a liquid inlet pipe, permitting liquid flow into the inner chamber, while maintaining the seal between the inner and outer chambers of the tank, thus maintaining pressurization in the outer chamber, as fluid enters the inner chamber, pushing the flexible wall upwardly into the outer chamber.

Abstract: A master mounting for a hydraulic actuation member has a housing, which has a compensating chamber with an interior and a cylinder. The master mounting also has a piston guided in the cylinder. The cylinder and the compensating chamber are connected in at least one position of the piston by a communication channel. At least one overflow channel is disposed at least at the opening of the communication channel in the cylinder wall.

Abstract: A hydraulic system for a work machine including a first and a second hydraulic actuator, and a first and a second hydraulic machine for providing hydraulic fluid to at least one of the first and the second actuator via a first and a second priority valve, respectively. The first and second priority valves are controlled by a pressure drop ?P over the inlet valve of the first actuator such that when ?P is lower than a first threshold value T1, a flow of hydraulic fluid is allowed only to the first actuator. The second priority valve allows a flow of hydraulic fluid to both the first and second actuator for a pressure drop higher than T1. The first priority valve is further configured to allow a flow of hydraulic fluid to both of the first and second actuator for a pressure drop higher than a second threshold value T2 which is higher than T1.

Abstract: A magnet-type rodless cylinder (1) is provided with a guide mechanism having an outer rolling groove (26), an inner rolling groove (29), a cylinder body (32), a pair of connection paths (34) for connecting an area between the outer rolling groove and the inner rolling groove with the cylinder body, and a plurality of steel balls (36) that can roll within an endless circuit (35) formed of the cylinder body, the connection paths and the area between the outer rolling groove and the inner rolling groove, wherein the connection paths (34) are formed at a pair of inner members, i.e. return caps (33), disposed on the inner sides of metal end plates (12) that are attached to the front and rear ends in the sliding direction of a sliding body (4).

Abstract: A gas pressure actuator includes a launcher, a gas generator that is disposed at a first axial end of the launcher, a rocket part placed inside the launcher, an end pad and a sealing gasket respectively disposed at a second axial end of the launcher, and a gasket holder supporting the gasket. The rocket part includes a first portion disposed at a location corresponding to the first axial end and a second portion that has a diameter less than that of the first portion and that ranges from the first portion toward the second axial end. The end pad includes a position determination part that determines positioning of the rocket part and restricts the rocket part from being displaced in a direction away from the first axial end. The gasket holder may be pressed by the first portion when the rocket part protrudes from the launcher and plastically deformed.

Abstract: A voltage detector assembly employed in hydraulic systems, comprising a hydraulic power unit having a hydraulic cylinder with a piston, a hydraulic fluid reservoir connected with the hydraulic cylinder, a pump operated by a motor connected with the hydraulic fluid reservoir and a wireless module. A battery is connected to the hydraulic power unit by means of a start solenoid that transfers power from the battery to the motor of the hydraulic power unit. A digital remote is connected to the hydraulic power unit and the battery through the start solenoid. The digital display registers available battery power in volts during upstroke and down stroke of the hydraulic system. The wireless module includes a radio frequency (RF) wireless unit and a Bluetooth transmitter/receiver that allows a user to measure the battery voltage level through wireless communication.

Abstract: Two circular rings or discs which are somewhat rotatable with respect to one another. They are connected by a foldable cover which houses a spring inside. The spring, when collapsed, pushes the discs away from each other while the foldable cover is semi-flexible. When the accessory is collapsed, the foldable cover folds over itself, whereas when the accessory is expanded, the foldable cover becomes unfolded with a smaller-circumference center ridge which is less flexible or non-flexible, and situated between two larger circumference areas. Flanges on the inner and outer rings abut each other, keeping the spring collapsed and discs locked into each other in some embodiments. When the rings are rotated with respect to one another, the flanges become unlocked and the spring separates the discs such that one or both of the foldable cover or spring become the limiting factor in how far apart the discs spread from another.

Abstract: Embodiments of the invention provide a clamp lock to secure a clamp around a pressure vessel, such as a split tank pool filter. The clamp lock includes a drive rack with at least one notch, and a housing with a rotatable drive gear, a locking pawl, and a receiving hole. The rotatable drive gear is capable of laterally moving the drive rack through the receiving hole, and the locking pawl is capable of engaging the at least one notch when the drive rack has been inserted a distance into the receiving hole. The distance correlates to a diameter of the clamp sufficient to secure the clamp around the pressure vessel.

Abstract: A fastener, in particular for bellows, comprises a male end segment and a female end segment complementary to the male end segment. The fastener can be used to fasten bellows to joint housings and/or shafts, said fastener having improved closing behavior.

Abstract: A joined article includes a first component having a laser-treated surface portion and a second component having a laser-treated surface portion. An adhesive joins the first component to the second component at the treated surface portion. A method of making a joined article form components and a system for making joined articles are also disclosed.

Abstract: An assembly of two profiled elements that each have a medial longitudinal edge and two longitudinal edges which are joined together by their medial edge and are kept movable apart from one another through a predefined limited travel. A cylindrical orifice passes perpendicularly through the medial longitudinal edge and a cylindrical element having dimensions that match the cylindrical orifice butts against the medial longitudinal edge such that the spacing of the medial edges causes the longitudinal edges to butt against the inner wall of the tubular element. A further embodiment is a connection kit for tubular elements and a tubular structure joined together by way of connection devices. The connection produced is either reversible or permanent.

Abstract: A method of closing a spatial gap between a first mating surface of a first snap locking feature defined by a first part and a second mating surface of a second snap locking feature defined by a second part. This method includes the steps of attaching the first and second parts to one another by sliding the first and second snap locking features over one another until the first mating surface is proximate the second mating surface and deforming a portion of the first part to fabricate a protrusion that contacts the second part and urges the second part in a direction effective to place the first and second mating surfaces into direct contact with one another.

Abstract: In embodiments, a mounting bracket may facilitate an attachment of a first device to an enclosure of a second device. A shoulder screw may be inserted through a grommet which is mounted in a bracket, and the shoulder screw may be threaded into an opening within the first device. The grommet may have an axial through-hole with a counter bore. A portion of the shoulder screw may be threaded to mate with a threaded opening of the first device and may be designed to compress the grommet for secure mounting. A raised cylindrical section on the shoulder of the screw may be captured within the counter bore of the grommet when pressed into position and another raised section of the shoulder may prevent the screw from being pulled out of the counter bore when the screw is unthreaded from the corresponding opening of the first device.

Abstract: A fastening device is provided for fastening a structural part consisting of a carbon-fiber reinforced plastic, in particular a cell of a vehicle, to a component, in particular a chassis component of a vehicle. In order to provide a fastening device which ensures a secure fastening of structural parts consisting of a carbon fiber-reinforced plastic to other vehicle components, a first connecting element is mounted on the structural part, on which first connecting element a second connecting element can be mounted. The first connecting element is connected to the structural part by an adhesive layer and has a protruding bush which passes through a bore in the structural part and which projects with its free end beyond the structural part.

Abstract: A nut press-fit portion (8) includes a bottom surface (12), inner peripheral wall surfaces (14), press-fit ribs (10), and contact parts (11). The bottom surface (12) is opposing to a press-fit direction. The inner peripheral wall surfaces (14) are generally parallel to the press-fit direction. The press-fit ribs (10) are protruded from the inner peripheral wall surfaces (14) and elongated along the press-fit direction so as to contact the peripheral surfaces of a press-fitted nut (7). The contact parts (11) are disposed above the bottom surface (12) so as to contact the press-fitted nut (7) from below. Furthermore, the contact parts (11) are disposed so as neither to interfere with shavings reachable regions (21) nor to overlap the shavings reachable regions (21) in the press-fit direction, the shavings reachable regions (21) being imaginary extensions of the press-fit ribs (10) in the direction of protrusion thereof from the inner peripheral wall surfaces (14).

Abstract: A plain bearing which may have superior operational characteristics, such as the ability to work in high temperature environments with aluminum housings, or which may have the ability to support an axial load, or which may have an outer ring formed entirely of polymer or lubricant impregnated polymer, and/or components thereof.

Abstract: A sliding element, e.g., a sliding element for slidably supporting a rotatable shaft, may include a first sliding element component, a second sliding element component, and at least one coupling element. The at least one coupling element may be configured to be coupled to the first sliding element component and may be configured to be coupled to the second sliding element component to releasably couple the first sliding element component and the second sliding element component together.

Abstract: A movement guide device comprises: a support body formed with two roller rolling grooves in each of two side surfaces thereof; a moving body assembled onto the support body to freely move along the support body, and having a load roller rolling groove provided opposite to the roller rolling groove to form a load path together with the roller rolling groove; rollers arranged such that lines forming a contact angle with respect to the roller rolling groove intersect at a position outside the support body; and a roller retaining member arranged between two row of rollers, the moving body comprises a main moving body and cover bodies mounted at two ends of the main moving body; in the movement guide device, the roller retaining member comprises a roller retaining portion, formed in a plate shape extending in a length direction of the support body, and orthogonal to the length direction.

Abstract: A sliding element which has a main body and a layer system which is applied thereto. The layer system has at least a first layer of the thickness s1, which is applied to the main body, and hard material particles having a mean extent d, which are introduced into the first layer and are therefore at least fixed on the main body. The thickness s1 of the first layer is such that it amounts to at least 60% and at most 90% of the mean extent d of the hard material particles, and the hard material particles form a surface structuring of the sliding element.