Abstract: A rotary pressure exchanger includes a housing and a rotor mounted within the housing for rotation about an axis of rotation defining an axial direction. The rotor extends from a first rotor end in the axial direction to a second rotor end, a plurality of channels is inside the rotor for transferring pressure from the first fluid to the second fluid, and each channel extends parallel to the axis of rotation. The plurality of channels includes a set of first channels and a set of second channels, and the rotor includes a divider arranged between the first rotor end and the second rotor end for separating the first channels from the second channels, Each first channel extends from the first rotor end in the axial direction to the divider, and each second channel extends from the second rotor end in the axial direction to the divider.

Abstract: A solenoid valve control device includes a control module that outputs control signals to control solenoid valves, and a plurality of solenoid valve modules having control lines connected to the control module and that transmit the control signals to the solenoid valves, wherein the solenoid valve modules are connected to the control module or another of the solenoid valve modules, and each of the solenoid valve modules includes a data line that transmits to the control module pressure information detected by a pressure sensor that detects the pressure of air supplied to a pneumatic device.

Abstract: A hydraulic pump performance deterioration detection system according to one embodiment includes: a variable displacement hydraulic pump that supplies a hydraulic liquid to a hydraulic actuator to move the hydraulic actuator; a regulator that changes a displacement of the hydraulic pump in accordance with a command current; and control circuitry that feeds the command current to the regulator. When the hydraulic actuator is not moving, in a state where a switching valve located on a passage through which the hydraulic liquid delivered from the hydraulic pump flows is switched to a closed position and the hydraulic pump is being driven at a predetermined rotation speed, the control circuitry determines whether or not performance of the hydraulic pump has deteriorated based on a current value of the command current and a delivery pressure of the hydraulic pump measured by a pressure sensor.

Abstract: A hydraulic pump performance deterioration detection system according to one embodiment includes: a hydraulic pump that is driven by a prime mover and that supplies a hydraulic liquid to a hydraulic actuator to move the hydraulic actuator; a switching valve located on a passage through which the hydraulic liquid delivered from the hydraulic pump flows, the switching valve being switchable between an open position and a closed position; and control circuitry configured to change a rotation speed of the prime mover. When the hydraulic actuator is not moving, in a state where the switching valve is switched to the closed position, the control circuitry determines whether or not performance of the hydraulic pump has deteriorated based on the rotation speed of the prime mover and a delivery pressure of the hydraulic pump measured by a pressure sensor.

Abstract: An energy storage apparatus is provided. The energy storage apparatus includes: a support structure, which is provided with at least one support layer in a height direction of the support structure; an energy storage device, an air outlet is defined at the top of the energy storage device, and an air inlet is defined on a sidewall of the energy storage device, where the number of the energy storage device is at least two, the energy storage devices are arranged in at least two layers through the support layer, and the support layer between adjacent layers of energy storage devices is hollowed out or configured in a partitioning manner; and an air guide structure mounted on the energy storage device and in communication with an air inlet of the energy storage device.

Abstract: A bead product is provided. The bead product comprises a plurality of beads, each of the plurality of beads having a first surface facing a first direction opposing a second surface facing a second direction; a plurality of holding members, one of the plurality of holding members disposed within or attached to the plurality of beads; a framework formed from the holding member and the plurality of beads, the framework having a first configuration and a second configuration; and a locking mechanism, the locking mechanism locks positions of the holding member, the plurality of beads or both on the framework in the first configuration and the locking mechanism unlocks only a predetermined bead of the plurality beads for movement on the framework in the second configuration. Systems and methods are disclosed.

Abstract: A clip includes a first guide and a second guide each configured to guide an engagement portion of a suspender to a gap formed therebetween, at least one of the first guide or the second guide being engageable with the engagement portion inserted through the gap, and a connecting portion connecting the first guide and the second guide to each other. The first guide and the second guide are each placed on a bottom surface of a groove of a cushion member.

Abstract: A device for compensating for tolerances between two components to be connected to one another may have a base element and a compensating element which is in threaded engagement with the base element and which can be moved from a starting position by rotation relative to the base element. The device may also have a radially yielding driving element acting in a predetermined direction, and a holding device for connecting to one of the components. The holding device is designed as an integrated part of the base element or the compensating element, or as a separate part and can be detachably arranged on one of the components in a form-fitting and/or force-fitting manner. The base element and the compensating element are nested in such a way that at least two coupling interfaces are formed between the base element and the compensating element.

Abstract: A damping arrangement which is fastenable in an opening of a first component and by which a dampened connection of the first component with a second component are realizable. The damping arrangement comprises two structurally identical damping elements, wherein each damping element including a head portion with a first outer diameter, a shaft portion with a second outer diameter that is smaller than the first outer diameter and extends from an underside of the head portion, as well as a central first through opening that is arranged within the shaft portion. The shaft portion comprises a circumferential wall with a plurality of apertures so that the two structurally identical damping elements are fastenable to one another via the shaft portion by means of a form fit and/or friction fit connection wherein the undersides of the head portion are arranged facing each other and with the first component arranged therebetween.

Abstract: The present invention provides a single-piece self-penetrating wall anchor for anchoring an article to a hardwall, said wall anchor comprising a rigid body having: (i) an outer wall(s); (ii) a piercing distal-end for penetrating into said wall (without prior drilling); and (iii) an open proximal-end leading to an axial threaded recess for receiving a screw, wherein said rigid body is non-deformable and having a hardness of at least 40 HRC (Hardness Rockwell C), such as that is does not change in shape upon insertion into a concrete/brick wall, and/or upon receiving a screw into said axial threaded recess.

Abstract: A pin and grommet fastener includes a grommet and a pin. The grommet includes a base, panel locking fingers, and pin locking fingers. The locking fingers project from the base and cooperate with one another to define a pin receptacle therebetween. The pin includes a pin head, a driving beam connected to the pin head, and protrusions. When the pin head is inserted through an opening in the base and into the pin receptacle, the pin locking fingers engage the pin and thereby retain the pin head in the pin receptable. When the fastener is inserted in one direction into a hole in a panel, the panel engages the driving beam and thereby moves the pin relative to the grommet in the opposite direction, which causes the panel locking fingers to flex away from one another and thereby inhibits withdrawal of the fastener from the hole in the panel.

Abstract: A male anti-cross threading fastener comprising: a substantially round shank having a lead end, a torque end, and a plurality of male threads around a circumference of the shank, the plurality of male threads comprising: a standard thread around at least a portion of the circumference of the shank and having a standard thread contour, wherein a width and a thread angle of the standard thread enables engagement with corresponding female threads, wherein the major diameter of the standard thread is between a lower major diameter limit and a higher major diameter limit; a transitional thread around at least a portion of the circumference of the shank and having a transitional thread contour with a width and a thread angle similar to the width and thread angle of the standard thread that enables engagement with corresponding female threads; an anti-cross thread around at least a portion of the circumference of the shank and having an anti-cross thread contour and an outside diameter configured to promote alignmen

Abstract: Expandable collet bodies with sectional finger-based anti-rotation features are disclosed. The collet body comprises not only a plurality of gripping finger as a first part of a two-part anti-rotation means (ARM), but also a first part of a two part translation arresting means (TAM), which may or may not be sectional in nature and the TAM prevents over translation of a collet body within the work piece(s), and cooperates with a second part of the TAM associated with a work piece or an auxiliary structure. In this manner, a collet body inserted into a work piece or auxiliary structure will not accidentally be pushed beyond the blind side of the work piece(s) during insertion or initial clamp-up.

Abstract: A channel nut includes a web, a first flange projecting from the web where the first flange has a first notch for receiving a first lip of a strut channel, and a second flange projecting from the web where the second flange has a first notch for receiving the first lip of the strut channel. The first notch of the first flange and the first notch of the second flange are arranged in a non-aligned relationship with respect to each other such that the first notch of the first flange and the first notch of the second flange form a curved first seat for the first lip of the strut channel.

Abstract: A connector includes a connector body and an attachment body. The connector body includes a pair of connecting holes, and the attachment body includes a connecting shaft. Connecting holes are formed in the pair of connecting hole portions, and the connecting shaft is provided with a bulge portion located in the connecting holes. Contact flat surfaces are formed in the connecting hole portions and the bulge portion, the contact flat surfaces being configured to come into surface contact with each other in a pulling direction of the connector body and the attachment body.

Abstract: Modified connecting rod journals containing a first cylindrical portion and a second cylindrical portion can be used in a crankshaft of an internal combustion engine used in a gas compression system. These modified journals allow multiple stroke lengths for the pistons of the system thereby increasing system efficiency.

Abstract: A ball bearing includes an inner ring (1), an outer ring (2), and a ball (3). The inner ring (1) has an inner ring groove curvature radius Ri. The outer ring (2) has an outer ring groove curvature radius Re. The ball (3) has a ball diameter Dw. The ratio of the outer ring groove curvature radius Re to the ball diameter Dw satisfies: Re/Dw?0.5275; and/or the ratio of inner ring groove curvature radius Ri to the ball diameter Dw satisfies: 0.5175?Ri/Dw?0.55. The ball bearing may be accommodated in a housing, thereby forming a ball bearing assembly.

Abstract: A mechanical assembly includes an inner member, an outer member disposed about the inner member, a bearing inner ring, a bearing outer ring and a plurality of balls disposed between the two rings. The inner member has an outer circumferential surface with an outside diameter, which has a tolerance of greater than +/?0.00125?. The outer member has an inner circumferential surface with an inside diameter, which has a tolerance of greater than +/?0.002?. The inner ring has an annular groove with an inside diameter and the outer ring has an annular groove with an outside diameter. The balls are disposed within the two grooves and has a diameter sized such that the sum of twice the diameter plus the inside diameter of the inner ring groove is greater than the outside diameter of the outer ring groove, thereby establishing an internal preload in the bearing.

Abstract: The present disclosure relates to a low friction bearing liner for a solenoid may include a low friction layer. The low friction layer may include a first fluoropolymer matrix component and a first thermoplastic filler component distributed throughout the first fluoropolymer matrix component. The content of the first fluoropolymer matrix component may be at least about 1 wt. % and not greater than about 99 wt. % for a total weight of the first low friction layer. The content of the first thermoplastic filler component may be at least about 1 wt. % and not greater than about 99 wt. % for a total weight of the first low friction layer.

Abstract: A cage includes a first sub-part having a plurality of first partitions integrated as a whole and a plurality of first pocket portions formed by adjacent first partitions. A second sub-part has a plurality of second partitions integrated as a whole and a plurality of second pocket portions formed by adjacent second partitions. A first recess is provided on the first partition belonging to a first set of the plurality of first partitions. A second pin extends along an axial direction from the second partition belonging to a second set of the plurality of second partitions. The second pin is fixed in its corresponding first recess. The first set of first partitions includes any one or more of the plurality of first partitions. The second set of second partitions includes any one or more of the plurality of second partitions and correspond to the first set of first partitions respectively.

Abstract: An outer diameter of a claw portion is smaller than an outer diameter of a main portion, a radial width of the claw portion is ½ or less of a radial width of the main portion, an axial width from an upper surface of a connection portion of a pillar portion to a bottom surface of the main portion is ½ or less of an axial width of a crown type cage for a ball bearing, and in the main portion, an opening portion is provided between adjacent pockets.

Abstract: A bearing unit includes a radially outer ring, a radially inner ring, a row of rolling bodies interposed between the radially outer ring and the radially inner ring and a cage for retaining the rolling bodies, where the cage includes a rib with a circular base and a plurality of circumferentially spaced fingers defining a plurality of pockets for holding the respective rolling bodies of the row of rolling bodies. Also, a plurality of inserts formed separately from the cage, each of the plurality of inserts being inserted inside seats of corresponding adjacent pairs of fingers of the plurality of fingers to limit circumferential deformation of the fingers.

Abstract: A cage segment for a segmented bearing cage includes first and second end walls configured to oppose first and second end surfaces of a rolling element and a first side wall and a second side wall extending from the first end wall to the second end wall and defining with the first and second end walls end a pocket for receiving the rolling element. The first and second side walls are configured to oppose a curved side surface of the rolling element. The first and/or second end wall includes at least one protrusion extending into the pocket that is configured to contact an end surface of the rolling element. Also an assembly of the cage segment and the rolling element.

Abstract: A cage includes a first sub-part having a plurality of first partitions integrated as a whole and a plurality of first pocket portions formed by adjacent first partitions. A first engaging portion is formed on at least one of the first partitions. A second sub-part includes a plurality of second partitions integrated as a whole and a plurality of second pocket portions formed by adjacent second partitions. A second engaging portion is formed on at least one of the second partitions. A pocket is formed by the first pocket portion and its corresponding second pocket portion. Each first engaging portion snaps with its corresponding second engaging portion. The cage overcomes the harmful umbrella effect found in a one-piece polymer prong-type cage, so that the bearing equipped with this cage can operate under very high speeds. The cage can be part of a ball bearing.

Abstract: A rolling bearing includes an outer ring, an inner ring, and a plurality of rolling bodies between the rings. The outer ring includes a first and a second annular raceway, both formed on an inner lateral surface of the outer ring, and an axial shoulder extending in a radially inward direction and formed between the two raceways. The axial shoulder includes a first curvilinear portion formed by a first arc of a first circle with a first radius of curvature and a geometric center projected in a radially inward direction, and a second curvilinear portion formed by a second arc of a second circle comprising a second radius of curvature and a geometric center projected in a radially outward direction. The two curvilinear portions are flush connected to one another by an inflection point, the inflection point representing a tangent point of the first and second circles.

Abstract: An improved seal assembly is disclosed herein that includes an outer cap, a ring, and a spring washer. The ring can be configured to repeatedly engage with a contact element defined on a bearing ring during rotation such that the ring vibrates, thereby promoting the removal of debris from the seal assembly.

Abstract: A temperature rise value estimating method for a machine tool including a cooling apparatus configured to cool a specific portion and a plurality of sensors. The temperature rise value estimating method includes: determining a cooling state of the specific portion by determining whether the cooling apparatus is in an operating state or a stopped state and determining whether a time measured from a base point of an activation or a stoppage of the cooling apparatus has elapsed a predetermined delay time or not; selecting an estimation model corresponding to the determined cooling state of the specific portion from a plurality of estimation models prepared in advance corresponding to different cooling states of the specific portion; and calculating an estimated temperature rise value of the specific portion based on the selected estimation model and temperature data derived from a measured value acquired by the plurality of temperature sensors.

Abstract: A clutch device includes a pressure plate movable toward or away from a clutch center, rotatable relative to the clutch center, and operable to press input-side rotating plates and output-side rotating plates. The clutch center includes an oil passage, at least a portion of which is located in an inner peripheral surface of an outer peripheral wall to guide clutch oil to a center-side fitting portion. The pressure plate includes a pressure-side recess on an outer peripheral surface of a pressure-side fitting portion, recessed radially inward from the outer peripheral surface over the entire outer peripheral surface in movement directions, and continuous with the pressure-side cam hole when seen in movement directions. The pressure-side recess communicates with the oil passage.

Abstract: A gear assembly (8) for mounting on a shaft (12) is described. The gear assembly (8) comprises: a gear wheel (80) configured to be rotationally supported with respect to the shaft (12) and a multiple-plate wet clutch (10). The wet clutch (10) comprises: a front part (34), a back part (42), a clutch basket attached to the gear wheel (80), and a clutch pack (20) connecting the clutch hub (16) and the clutch basket (18) and positioned between the front part (34) and the back part (42). The clutch pack (20) has: an unengaged state in which the clutch hub (16) and the clutch basket (18) are unlocked, and an engaged state in which the clutch hub (16) and the clutch basket (18) are locked together, wherein the back part (42) is spaced apart from the gear wheel (80) in the unengaged state, and the back part (42) engages the gear wheel (80) in the engaged state.

Abstract: A reverse-input blocking clutch, including a pressed member having a pressed surface, an input member having an input-side engaging portion coaxially arranged on an inner side in a radial direction of the pressed surface, an output member having an output-side engaging portion coaxially arranged further on the inner side in the radial direction than the input-side engaging portion, an engaging element having a pressing surface facing the pressed surface; an input-side engaged portion engageable with the input-side engaging portion; and an output-side engaged portion engageable with the output-side engaging portion; the engaging element movable in a first direction as a direction away from or toward the pressed surface, and an elastic member elastically held between the output-side engaging portion and the engaging element in the first direction.

Abstract: A rotation speed reduction mechanism according to one embodiment comprises: a fluid passage which allows a pressurized fluid to pass therethrough and is provided such that the pressurized fluid flows toward a shaft; and an elastic member which elastically deforms and comes into contact with the shaft due to the pressurized fluid flowing out from the fluid passage, said elastic member having the base side thereof affixed to a housing, and having a section which extends in an orthogonal direction orthogonal to the direction in which the shaft extends.

Abstract: There is provided a disc brake device in which a plurality of annular seals that are disposed coaxially with rotation members, in which the annular seals are sandwiched in an axial direction between a caliper and a housing, and in which a position restriction portion includes: at least one caliper-side restriction portion provided on the caliper, which is disposed non-coaxially with the rotation member and is configured to serve as a reference of a position of the rotation member; and at least one housing-side restriction portion provided on the housing, which is disposed non-coaxially with an output member and is configured to serve as a reference of a position of the output member, and is configured to restrict a position of the housing with respect to the caliper by bringing the caliper-side restriction portion and the housing-side restriction portion into contact with each other.

Abstract: A band spring arranged straddling a brake disc to apply an elastic action on a brake pad to bias the brake pad away from the brake disc is provided. The brake pad has a backing plate supporting friction material and having a plate edge forming at least one thrust portion and a distinct striker portion. The band spring has a band-shaped spring body and at least three portions mutually distinct, namely a first coupling portion coupling the band spring to a caliper body, a second thrust portion applying an elastic action on the at least one thrust portion, and a third abutment portion abutting against the striker portion forming a support that prevents sliding of the second thrust portion when the band spring is subject to external actions, preventing the band spring from permanently coupling with the brake pad, avoiding bilateral constraint in the second thrust portion and third abutment portion between the band spring and the brake pad.

Abstract: A brake system is provided for a wheel rotor having a brake pad associated therewith. The brake system includes a housing defining first and second passages. First and second pistons are provided in the respective first and second passages for selectively moving the brake pad into engagement with the wheel rotor. First and second spindles are threadably coupled to the first and second pistons such that the pistons are axially movable relative to the spindles without the spindles rotating. Each spindle includes first threads separated by first cylindrical roots and each piston is coupled to second threads separated by second cylindrical roots.

Abstract: A valve spring includes a nitrided layer, and a core portion that is further inward than the nitrided layer. A chemical composition of the core portion consists of, in mass %, C: 0.53 to 0.59%, Si: 2.51 to 2.90%, Mn: 0.70 to 0.85%, P: 0.020% or less, S: 0.020% or less, Cr: 1.40 to 1.70%, Mo: 0.17 to 0.53%, V: 0.23 to 0.33%, Ca: 0.0001 to 0.0050%, Cu: 0.050% or less, Ni: 0.050% or less, Al: 0.0050% or less, Ti: 0.050% or less, and N: 0.0070% or less, with the balance being Fe and impurities. In the core portion, a number density of V-based precipitates having a maximum diameter ranging from 2 to 10 nm is 500 to 8000 per ?m2, and in the core portion, a numerical proportion of Ca sulfides with respect to a total number of oxide-based inclusions and sulfide-based inclusions is 0.20% or less.

Abstract: A non-metal spring includes two non-metal elastic units connected to each other and formed between two non-metal terminal rings. Each of the non-metal elastic units includes two intermediate rings intersecting each other, thereby providing two cross portions. The cross portions of each of the non-metal elastic units divide each of the intermediate rings into a first portion and a second portion. The first portions of the intermediate rings of one of the non-metal elastic units are connected to one of the terminal rings. The second portions of the intermediate rings of another one of the non-metal elastic units are connected to a remaining one of the terminal rings. The first portions of the intermediate rings of each of the non-metal elastic units are connected to the second portions of the intermediate rings of an adjacent one of the non-metal elastic units.

Abstract: The present disclosure relates to a vibration damper with adjustable damping force, comprising an inner cylinder with at least one working chamber which exhibits a flow connection to a damping-valve device, wherein the damper-valve device is arranged outside of an outer cylinder, wherein the flow connection has been realized in a component that is separate from the inner cylinder, wherein the separate component is constituted by a pressure-stage adapter which constitutes a part of the working chamber and which exhibits a coupling to the damping-valve device, wherein a base piece is arranged at the end of the inner cylinder, wherein the pressure-stage adapter and the base piece have been combined to form a pressure-stage adapter device.

Abstract: The present invention causes a low-rigidity disk to be supported by a backup disk (a deformation prevention portion), and therefore can prevent the low-rigidity disk from being deformed due to an inflow of hydraulic oil to between the low-rigidity disk and a disk adjacent thereto according to an increase in a pressure in a cylinder upper chamber during an extension stroke, and can improve the durability of the low-rigidity disk.

Abstract: A shock absorber for a suspension system of a vehicle includes a transfer ring fluidly connecting an intermediate chamber and the valve. The transfer ring includes a body and a seal unit. The seal unit includes a first seal, a second seal, and a connector. The first seal is between the transfer ring and the intermediate tube. The second seal is between the transfer ring and the valve. The connector is connected to the first seal and the second seal. The connector extends through the body from the first seal to the second seal.

Abstract: A vibration damping device including first and second attachment members connected by a main rubber elastic body. The second attachment member includes a main rubber outer member having a first tubular part fastened to an outer peripheral end of the main rubber elastic body, and a drawing fitting having a second tubular part attached externally about the first tubular part of the main rubber outer member. The first tubular part is axially inserted in the second tubular part, and the second tubular part is reduced in diameter to be fitted to an outer circumferential surface of the first tubular part. Fitted portions of the first tubular part and the second tubular part include respective tapered parts decreasing in diameter in a direction of dislodgment that is opposite to a direction of insertion of the first tubular part in the second tubular part.

Abstract: A drive belt includes a foamed undercord layer having void spaces located throughout the foamed undercord layer. The void spaces extend from a backing layer of the undercord layer to an exterior surface of the backing layer, and may include some void spaces at the exterior surface that are open to the external environment. The foamed undercord layer may exhibit a 20% reduction in specific gravity as compared to an unfoamed version of the undercord layer. The manufacturing process for making the foamed undercord layer can include incorporating foaming agent in the undercord layer such that the undercord layer both foams and cures when heat and pressure are applied to the undercord layer. The foamed drive belt incorporating the foamed undercord layer may exhibit reduced bending stiffness and improved energy efficiency.

Abstract: A drive belt includes an undercord layer having a first region proximate a backing layer surface of the undercord layer and a second region proximate the exterior surface of the undercord layer, the first region being foamed and the second region either being foamed to a lesser extent than the first region or not being foamed. The drive belt further includes a cover layer formed over the exterior surface of the undercord layer. Alternatively, the drive belt may be foamed throughout the undercord layer thickness, with a cover layer formed on the exterior surface of the undercord layer. The manufacturing process for making the foamed undercord layer can include incorporating a first quantity of foaming agent in a first sheet of undercord layer material and either a second quantity of foaming agent in a second sheet of undercord layer material, the second quantity being less than the first quantity, or including no foaming agent in the second sheet.

Abstract: A toothed belt including a reinforcing layer with 0.05 mm to 0.2 mm thickness buried along a contour of tooth portions such that a maximum height from a bottom portion of the tooth portion to the reinforcing layer is in a range of 30% to 100% of a height from the bottom portion to a tooth tip, in which the reinforcing layer includes reinforcing fiber filaments arranged in a belt circumferential direction, in the reinforcing layer, a weight per unit area of fibers intersecting the belt circumferential direction is 30% or less of a weight per unit area of the reinforcing fiber filaments, the reinforcing layer has a structure where the reinforcing fiber filaments are arranged in the belt circumferential direction and bonded to form a sheet shape in an untwisted state, and a tensile modulus of the reinforcing fiber filament satisfies a specific condition.

Abstract: Disclosed is a drivetrain comprising a frame defining a central plane respectively opposite half-spaces, and two driving lines housed in such half-spaces; the driving lines comprise respective torque input elements and torque output elements, and they further comprise at least a cross-plane intermediate element adapted to transmit torque coming from the first or from the second torque input towards the first or to the second torque output and across said central plane.

Abstract: Systems and methods for controlling transmissions having CVTs are disclosed with multiple modes and gearing arrangements for range enhancements, where embodiments include synchronous shifting to allow the transmission to achieve a continuous range of transmission ratios, while minimizing “empty” cycling of the CVT during mode shifts. Embodiments provide for wide ratio range and performance and efficiency flexibility, while maximizing CVT usage through synchronous shifting.

Abstract: A driving force transmission device includes drive rollers, roller support portions, and a roller arrangement portion. The drive rollers transmit a driving force to a main wheel. The roller support portions rotatably support the drive rollers. The roller arrangement portion includes a base, an outer frame, and an inner frame. The base expands radially outward with respect to a rotation axis. The outer frame extends in a circumferential direction around the rotation axis and protrudes from the base in an axial direction along the rotation axis. The inner frame is radially inside the outer frame and protrudes from the base in the axial direction. The roller support portions are fitted between the inner circumferential surface of the outer frame and the outer circumferential surface of the inner frame.

Abstract: Devices and methods for improving the efficiency of an axial piston hydraulic motor or other axial piston hydraulic device. In some embodiments, a valve cam, with specified geometry, is assembled to a conventional axial piston hydraulic device (e.g., hydraulic motor, hydraulic pump, hydraulic pump-motor) in a manner permitting selective rotation of the valve cam relative to the distributor valves (e.g., spool valves). The rotating valve cam facilitates variable piston stroke and can be provided in conjunction with (e.g., joint control) an adjustable swashplate according to a mathematical relationship in order to adjust the displacement of the axial piston hydraulic motor (or other device) while maintaining optimal pre-compression and decompression across a range of operating conditions. This configuration allows, for each desired effective displacement of the hydraulic motor, a set of optimal valve timing to achieve perfect pre-compression and decompression so as to eliminate associated throttling losses.

Abstract: In a bevel gear pair, a first gear (G1) and a second gear (G2) are applied with tooth top modification, and a ratio of a distance (L1b) from a pitch circle (P1) to a starting position (R1) of the tooth top modification to a distance (L1a) from the pitch circle (P1) to a tooth top (T1) in the first gear (G1) is larger than a ratio of a distance (L2b) from a pitch circle (P2) to a starting position (R2) of the tooth top modification to a distance (L2a) from a pitch circle (P2) to a tooth top (T2) in the second gear (G2). Thus, the bevel gear pair that can achieve smooth meshing is provided.

Abstract: Embodiments of a combination piston and piston ring to reduce the volume of a crevice defined between the circumferential wall of a cylinder and a portion of the outer wall of a piston within the cylinder, the portion extending down from the top of the piston. The combination piston and piston ring is configured such that pressurized fluid within the cylinder reliably urges a radial face of the piston ring to sealingly engage the circumferential wall of the cylinder, even as the piston reciprocates within the cylinder.

Abstract: An edge seal for sealing an outer surface of a lower electrode assembly configured to support a semiconductor substrate in a plasma processing chamber, the lower electrode assembly including an annular groove defined between a lower member and an upper member of the lower electrode assembly. The edge seal includes an elastomeric band configured to be arranged within the groove, the elastomeric band having an annular upper surface, an annular lower surface, an inner surface, and an outer surface. When the elastomeric band is in an uncompressed state, the outer surface of the elastomeric band is concave. When the upper and lower surfaces are axially compressed at least 1% such that the elastomeric band is in a compressed state, an outward bulging of the outer surface is not greater than a predetermined distance. The predetermined distance corresponds to a maximum outer diameter of the elastomeric band in the uncompressed state.