Abstract: A cylindrical case body made of a composite material; a linking ring made of Al, which is fitted and fixed to a rear end portion of the case body and has an annular groove which receives a reverse thrust load from a reverse thrust transmission body; and ring constituent bodies made of Ti alloy, each of which is placed in the rear end portion of the case body and has an arcuate groove which undertakes a reverse thrust load larger than that received by the linking ring, are included. The ring constituent bodies are fitted in notches of the linking ring and are brought into contact with, and are fixed to, outward receiving walls of the linking ring, whereby the ring constituent bodies are positioned relative to the case body in the axis direction and in the radial direction respectively, and the annular groove and the arcuate grooves are allowed to continue to each other. The ring constituent bodies made of Ti alloy, which receive a large reverse thrust load, can be placed with high positioning accuracy.

Abstract: To provide a variable stator vane mechanism, for an axial flow compressor, which is excellent in durability, has a simple structure, and is realized at low cost. The variable stator vane mechanism for adjusting a mounting angle of a stator vane of an axial flow compressor includes: an arm coupled to the stator vane; a rotation ring coupled to one end portion of the arm and located at an outer surface of a casing of the axial flow compressor; a driving machine configured to rotate the rotation ring to cause the stator vane to pivot via the arm; and a friction pad mounted on the casing. The rotation ring is in frictional contact with the friction pad.

Abstract: A compressor capable of cooling an electric motor which drives a compressor impeller even in an environment where no external refrigerant is obtained is to be provided. A compressor includes: an electric motor; an impeller which rotates with rotation of the electric motor; a main flow path formed downstream of the impeller, and a bypass flow path branching off from the main flow path; a heat exchange unit which is arranged upstream of the impeller and where gas upstream of the impeller and gas inside the bypass flow path exchange heat; and a pressure reducing device which is arranged further downstream than the heat exchange unit with respect to the bypass flow path and situated inside a flow path communicating with the inside of the electric motor.

Abstract: Provided is a compression apparatus that can appropriately cool a motor even in a high-temperature operation environment. A rotating shaft, a main compressor attached to the rotating shaft, and which compresses ambient gases and to emit a compressed gas, a motor attached to an upstream side of the main compressor on the rotating shaft, and which drives the main compressor, a turbine provided at the upstream side of the main compressor, and which expands a part of the ambient gas to generate a low-temperature gas to be used to cool the motor, and a sub compressor provided at the upstream side of the main compressor and at a downstream side of the turbine, and which compresses the low-temperature gas used to cool the motor to pressure equal to the ambient gas, wherein the main compressor generates the compressed gas by mixing and compressing the low-temperature gas compressed by the sub compressor and a part of the remaining ambient gas.

Abstract: An electric water pump includes a pump cover having an inlet through which coolant flows; a stator chamber having a stator generating a magnetic field according to a control signal; a rotor chamber having a rotor rotating according to the magnetic field generated by the stator; a separation wall configured to separate the stator chamber from the rotor chamber; a shaft having a central axis, fixed to the rotor so as to rotate together with the rotor about the central axis thereof; and an impeller fixed to a front portion of the shaft so as to rotate together with the shaft, the impeller pressurizing a coolant having flowed in through the inlet, wherein at least one wing portion is formed on a part of the shaft to increase a flow of the coolant.

Abstract: A fan defines a plurality of fixing holes and includes a plurality of protrusions. The plurality of protrusions is located on sides of the plurality of fixing holes. Each protrusion includes a guiding surface. The plurality of guiding surface extends in the plurality of fixing holes. A fan assembly is also provided.

Abstract: There are described methods and apparatus for operating and/or cleaning a compressor. In an embodiment, a first fluid comprising gas may be passed through the compressor, whilst the compressor operates to compress the first fluid. A second fluid may be passed through the compressor, the second fluid comprising gas and liquid from at least one well. The second fluid may be passed through the compressor for a limited time period to clean a surface inside the compressor, whilst the compressor operates to compress the second fluid.

Abstract: A hydraulic load sensing system for a working machine includes a pomp for providing hydraulic fluid for driving an actuator, and a hydraulic accumulator. The hydraulic accumulator is arranged to provide a hydraulic fluid pressure for generating an LS-signal for controlling the hydraulic fluid pressure delivered by the pump.

Abstract: A servo valve for use with an actuator. The servo valve comprises a first set of internal ports including a first inlet port, a first outlet port, a first A-control port and a first B-control port and a second set of internal ports including a second inlet port, a second outlet port, a second A-control port and a second B-control port. The valve is arranged and configured such that in use each internal port is in fluid communication with the actuator.

Abstract: A hydraulic system includes an engine; at least one hydraulic pump operatively coupled to the engine for transfer of mechanical power therebetween; and a controller operatively coupled to the engine and the at least one hydraulic pump. The controller is configured to determine a lug speed error as a difference between a target lug speed value and a speed of the engine, set at least one closed-loop gain to zero when the speed of the engine is greater than or equal to the target lug speed value, set the at least one closed-loop gain to a non-zero value when the speed of the engine is less than the target lug speed value, generate a pump control signal by scaling the lug speed error by the at least one closed-loop gain.

Abstract: Disclosed are a hydraulic system for construction equipment and a method of controlling the same, and the hydraulic system for construction equipment includes: a plurality of pressure control-type hydraulic pumps driven by an engine provided in construction equipment; an actuator driven by working oil discharged from the hydraulic pump; a closed center-type main control valve provided between the hydraulic pump and the actuator, and bypassing a virtual flow rate; and a controller configured to control the hydraulic pump by receiving the bypassed virtual flow rate from the main control valve.

Abstract: In the integrated hydraulic rotary actuator according to the present invention, a valve, a sensor, a controller, and a driving unit for controlling the rotary actuator are integrated, so wires connecting them are not exposed to the outside. Accordingly, it is possible to prevent damage due to interference in operation and maintenance is easy. Further, since it is integrated, including a controller, when the actuator according to the present invention is used, connecting with other parts is easy and interference can be reduced. Therefore, it is easy to design and manufacture a resultant product.

Abstract: A fluid circulation system configured to circulate a fluid from a fluid tank to a machine and back to the fluid tank. The fluid circulation system includes a first fluid pumping device having a pump inlet and a pump outlet. The inlet is in communication with the fluid tank. The system also includes a housing for at least partially containing the machine. The housing is in communication with the pump outlet. Additionally, a return conduit is positioned to permit fluid flow from the housing to the fluid tank. The system further includes an air introduction device configured to induce air into the fluid. The fluid circulation system is free of a second fluid pumping device.

Abstract: An object is to provide a decompression device including a plurality of stages of orifice plates disposed in a flow passage, which generates less noise in response to sonic feedback phenomenon and gas-column resonance. A decompression device 10A includes: an upstream orifice plate 14 disposed in a duct 12 forming a flow passage for a fluid F; and a downstream orifice plate 16 disposed in the flow passage and downstream of the upstream orifice plate 14. A jet-flow interference part 22A is disposed only partially on an outlet rim portion of an orifice 18 on the upstream orifice plate 14 and configured to interfere with a jet flow discharged from the orifice 18. Positions of Karman vortices e are differentiated in a duct axial direction between regions with and without the jet-flow interference part 22A to reduce generation of noise.

Abstract: An expansion anchor including a stud, at least one expansion element, and at least one slanted surface that is arranged on the stud and that pushes the expansion element radially outwards when the stud is moved in a pull-out direction relative to the expansion element is provided. It is provided that the coefficient of friction between the expansion element and the slanted surface is dependent on the direction.

Abstract: In a method of attaching a membrane to a composite structure, a base portion of a fastener is affixed to a membrane such that a body portion of the fastener extends from a rear surface of the membrane. The body portion of the fastener is assembled with a retaining structure to secure the rear surface of the membrane against an exterior surface of the retaining structure. A curable composite is deposited against a front surface of the membrane, with the curable composite curing to form a composite structure attached to the front surface of the membrane. A detachment mechanism is operated to separate the body portion of the fastener from the base portion of the fastener, thereby detaching the membrane from the retaining structure.

Abstract: A quick connector is used for releasably connecting a knockout bar and a mold tool. The quick connector includes an inner body that is attached to the knockout bar or the mold tool and is configured to receive a male fitting of the other of the knockout bar or the mold tool. The quick connector also has an outer sleeve movable along the inner body between (i) a locking position, where the outer sleeve causes locking elements of the quick connector to engage the male fitting to lock the male fitting in the inner body, and (ii) an unlocking position, where the locking elements do not engage the male fitting and do not lock the male fitting in the inner body. The quick connector includes a retaining element that functions to retain the outer sleeve in the unlocking position.

Abstract: An adjustable structure is described herein according to various embodiments, including an inner tube member and an outer tube member. The inner tube member and the outer tube member are configured to move in at least one of a telescoping direction or a rotation direction with respect to one another. The adjustable structure further includes a first frictional element between the inner tube member and the outer tube member. The first frictional element provides friction in the telescoping direction. Furthermore, the adjustable structure includes a second frictional element between the inner tube member and the outer tube member. The second frictional element provides friction in the rotational direction.

Abstract: A stackable article of furniture comprises at least one post having a longitudinal axis, a first end and a second end. A channel is formed in the at least one post parallel to the longitudinal axis and a pin is pivotally mounted to the at least one post within the channel and pivotable between a first position and a second position.

Abstract: An expansion anchor including a stud and at least one expansion element arranged on the stud, whereby the stud has a slanted surface that pushes the expansion element radially outwards when the stud is moved in a pull-out direction, relative to the expansion element is provided. It is provided that the expansion anchor has at least one swelling element consisting of a swellable compound that can swell in order to secure the expansion element onto the wall of a drilled hole in the pull-out direction.

Abstract: A product for fastening a component in place may include a retainer connected with the component. The retainer may have a platform and may have a wall extending between the component and the platform. The platform may define an opening that may be configured for fastening. The wall may define a slot.

Abstract: A fastener includes a shank having a first end and a second end. The fastener includes a first thread region adjacent to the first end having a first helical thread and a second helical thread interposed with the first helical thread in the first thread region. A second thread region is provided adjacent to the first thread region, the second thread region including only the second helical thread with the second helical thread having a diameter greater than a diameter of the first helical thread. A third thread region having a third helical thread is provided extending from the second thread region toward the second end. A head is provided on the second end and includes a disk and an octagonal boss between the disk and the third thread region, the boss including four major sides extending perpendicular to the disk and four chamfered sides, the chamfered sides being flush with a side edge of the disk.

Abstract: A fastener includes an elongated shank body having one or more helical threads and a head connected with the body. The head can include a drive design indentation extending into a first side of the head that is configured to be engaged with a drive tool. The head also includes radially projecting saw teeth extending around an outer perimeter of the head.

Abstract: A mounting structure includes a holding portion with a housing space for a mounting component. The holding portion includes a side wall portion upstanding from a base portion, and a seat portion being continuous with a top of the side wall portion and having a bolt through hole into which a bolt is inserted. A mounting component insertion hole is provided in the side wall portion for inserting the mounting component into the housing space. The bolt through hole abuts on the peripheral surface of the cylindrical portion of the mounting component. A communication portion provides communication between the bolt through hole and the mounting component insertion hole, for allowing passage of the cylindrical portion of the mounting component into the bolt through hole. Restrictions form a narrow portion in the communication portion, the narrow portion being narrower than the outer dimension of the cylindrical portion of the mounting component.

Abstract: The objective is to prevent the loosening of a structure with which a member 80 to be fastened and a base material 90 are fastened through a male screw body 10 and a washer 50. A screw-body-side seat part 22 is formed on the male screw body 10, and a first receiving part 60 and second receiving part 70 are formed on the washer side. A member-side seat part 82 is formed on the member 80 to be fastened. The first receiving part 60 and the screw-body-side seat part 22 have sawtooth-shaped recesses and protrusions. When an attempt is made to rotate the male screw body 10 in the direction of loosening, the recesses and protrusions engage one another, thereby preventing rotation. A recessed housing part of the member-side seat part 82 and the outer wall of the second receiving part 70 of the washer 50 have an eccentric circular shape. When an attempt is made to rotate the washer 50 in the direction of loosening, the eccentric circular shapes engage one another, thereby preventing rotation.

Abstract: A motion transmitting remote control assembly (100) comprises a first conduit section having a first end fitting (114) extending along a first longitudinal axis, and a second conduit section having a second end fitting (120) extending along a second longitudinal axis. The second end fitting has an open position where the second axis is transverse to the first axis, and a closed position where a portion of the first and second axes align. A first core element has a first coupler (128) mounted thereto, and a second core element has a second coupler (140) mounted thereto. A guide mechanism (144) having a first portion coupled to the first end fitting and a second portion coupled to the second end fitting, aligns the end fittings when the second end fitting is in the open position. The guide mechanism also guides the second end fitting toward the first end fitting until the second end fitting is in the closed position.

Abstract: A control cable assembly includes a yoke having a body and a first and second end. The yoke includes a first hinge at its first end and a second hinge at its second end. The first and second hinges may each comprise a pair of eyelets. The first eyelet on each hinge may form a closed loop, and the second eyelet on each hinge may form a partially open loop, having a gap. A first control cable may be connected to the first hinge. A second control cable may be connected to the second hinge. The control cables may be configured to pivot with respect to the yoke.

Abstract: An adjustable support arm device includes a plurality of segments. Ball-and-socket joints each connect two adjacent segments. Each joint includes a plurality of interleaved friction layers between a ball and a socket of that joint. A locking mechanism applies a normal force to the friction layers to lock the joints, the mechanism being releasable to enable bending of the joints.

Abstract: A bearing arrangement (28) having at least one radial air bearing (1) and/or having an axial air bearing (15?). The radial air bearing (1) has an inner annular bearing plate (7) and a spring plate (10) which surrounds the bearing plate (7) at the outside. The bearing plate and spring plate being formed as a single-piece component.

Abstract: Apparatuses are provided for a pilot ring. The pilot ring includes a first ring and a second ring positioned concentrically within the first ring. The second ring includes a first circumferential surface positioned adjacent to the first ring and a second circumferential surface opposite the first circumferential surface. The second circumferential surface includes at least one roll feature that extends substantially along a perimeter of the second circumferential surface.

Abstract: A bearing component can include a metal substrate layer, shaped so as to include a generally annular sidewall having a central axis and defining a first and a second opposite ends in an axial direction; and a radial flange bent so as to extend in a radial direction from one of the first and second ends of the generally annular sidewall, wherein, in a pre-shaped state, the metal substrate layer includes at least two flange segments extending in the axial direction and defining a gap extending toward an opening.

Abstract: An offset bushing for a structural member may include a tubular body having a cylindrical inner surface and a cylindrical outer surface. The cylindrical inner surface may have an inner diameter defining an inner axis. The cylindrical outer surface may have an outer diameter defining an outer axis. The inner axis may be spaced apart from the outer axis to define a linear offset. The offset bushing may include a bushing indexing feature configured to align with a member indexing feature of a member when the offset bushing is installed in a member bore. Alignment of the bushing indexing feature with the member indexing feature may cause the linear offset to be oriented substantially parallel to a loading axis of a load on the member.

Abstract: An axial needle roller bearing assembly is provided having first and second axial end washers, each with a radial body having a concave outer profile and a convex inner profile in radial cross-section and each including an axial flange on one of a radially inner or outer side. First and second intermediate washers having respective intermediate radial bodies with first and second axial sides are provided with the first axial sides defining first and second bearing races and the second axial sides defining contact surfaces for the respective first and second axial end washers. A cage and roller assembly is located between the first and second bearing races, and includes a cage with a plurality of radially extending needle roller pockets, and a plurality of needle rollers received in at least some of the pockets.

Abstract: A self-aligning roller bearing includes an outer ring, an inner ring, spherical rollers, a cage having a plurality of pockets that contain the spherical rollers, and a guide ring. Each spherical roller may be rotated on an imaginary line passing through a contact point at which the spherical roller contacts an outer raceway surface and a contact point at which the spherical roller contacts an inner raceway surface. Each pocket has a clearance between the pocket and a corresponding spherical roller, and the size of the pocket is set so that the rotation of the corresponding spherical roller is limited. The guide ring has such a side-surface shape that a small clearance is ensured between the spherical roller and the guide ring even when the spherical roller is rotated, in the pocket, on the imaginary line by a maximum amount at which the rotation of the spherical roller is limited.

Abstract: In a bearing preloading device in which a compression coil spring is used, a hole is formed in a bearing race or in a separate member from the bearing race, the separate member being axially opposed to the bearing race. The hole has an inner periphery constituted by a threaded portion connected to the bottom surface of the hole, and a shallow hole portion connected to the edge of the hole, and having an inner diameter larger than that of the threaded portion. By axially screwing the compression coil spring into the threaded portion so as to be threadedly engaged in the threaded portion, it is possible to easily prevent the compression coil spring from being pulled out.

Abstract: An apparatus is provided including a shaft, wherein the shaft is stationary. A rotatable component is configured to rotate with respect to the shaft. A fluid is operable to flow between the shaft and the rotatable component. A limiter is at a first axial end of the shaft, and a cup is at a second axial end of the shaft. An axially extending grooved region is between the limiter and the rotatable component.

Abstract: Embodiments herein relate to piece-part, sub-assembly, assembly, and component levels of a differential composed of a sun gear configuration and utilized in an integrated drive generator. An integrated drive generator is a hydro-mechanical transmission that drives a synchronous salient pole generator. The integrated drive generator is a constant speed output, variable speed input transmission that includes the differential and a hydraulic unit. In general, the integrated drive generator utilizes the variable speed input from an accessory gear box of an engine to drive or control a hydraulic unit, which in turn drives or controls a churn leg member of the differential. As the differential is driven, speeds of each speed member of the differential are then summed to generate the constant speed output to drive the synchronous salient pole generator.

Abstract: A bearing may include a substrate and a metallic layer disposed in contact with the substrate. An adhesive layer may be disposed in contact with the metallic layer. A supporting layer may be disposed in contact with the adhesive layer. According to an example, a polymer layer may be disposed in contact with the adhesive layer. According to another example, a polymer layer may be disposed in contact with the supporting layer.

Abstract: A rolling bearing includes an outer ring, an inner ring, a plurality of balls disposed between the outer ring and the inner ring and allowed to roll, and a snap cage that is made of resin and holds the balls. The snap cage includes an annular main portion and a plurality of cage bars. The cage bars each protrude from a right side surface of the main portion. Pockets are formed between the cage bars to house the respective balls. An inner circumferential surface and an outer circumferential surface of each of the cage bars in a radial direction have respective tilted surfaces that form a tapered shape in an axial direction. This allows lubricant oil to flow well in the rolling bearing in both directions.

Abstract: An improved cage element for a cage arrangement in a rolling bearing assembly including rolling elements is provided. The cage element includes a cylindrical middle portion, a first end portion including a first concave outer surface shaped to support a rolling element, and a second end portion including a second concave outer surface shaped to support the rolling element. The first and second end portions are arranged on opposite ends of the cylindrical middle portion, and the first and second concave outer surfaces have identical curvatures.

Abstract: There is provided a track roller bearing. The track roller bearing comprises: an inner ring, an outer ring concentric and rotatable relative to the inner ring; a resin liner formed on at least one of an outer circumferential surface of the inner ring and an inner circumferential surface of the outer ring; and an opposite surface which slides on a liner sliding surface of the resin liner. A non-contact portion is formed in an area in which the resin liner is formed, the non-contact portion being a portion in which the liner sliding surface does not contact the opposite surface.

Abstract: There is provided a rolling bearing including: inner and outer members, rolling elements in a raceway space, flexible annular sealing members which close openings at both ends of the raceway space, and annular metal shield members. Each sealing member is formed in three-dimensional shape such that the sealing member in a natural state is convex inwardly between outer and inner circumferential edge portions and the inner circumferential edge portion is elastically in surface contact with the outer surface of the inner member when the sealing member is fitted to the outer member. Each metal shield member is fixed to the outer member in a state that the outer circumferential edge portion of each sealing member is sandwiched between the metal shield member and the outer member. Each metal shield member covers part of each sealing member without contacting the inner member.

Abstract: A shaft supporting unit 15A supports a shaft of a pivoting body with capacity of pivot movement. A lower block 58A has a lower recess with a semicircular column shape, and is configured to support the shaft from beneath. A lower bush 59 has a semi-cylindrical shape, is located in the lower recess, and is configured to slide the shaft on it. The shaft supporting unit 15A does not abut an upper side of the shaft when the pivoting body pivots. An upper block 56A is configured to cover above the shaft, and has an upper recess with a predetermined gap between it and the shaft.

Abstract: The present invention relates to a bearing assembly that provides a magnetic sensor; a shaft; and a bearing. One of the shaft and the bearing is provided with a surface having a bearing steel and including a magnetic pattern disposed thereon for indicating a rotation of the shaft relative to the bearing. The magnetic pattern is provided by the microstructure of the surface; and the sensor is arranged to sense the pattern and output a signal indicative of a rotation of the shaft relative to the bearing.

Abstract: The present invention relates to a packaging device for transportation and handling of a rolling element bearing that provides a base member, a cover member, and side members connected to the base member and to the cover member. The base member, cover member and side members form an enclosing space for accommodating the rolling bearing. The packaging device is arranged to contain the rolling bearing during induction heating of the rolling bearing with an induction heater comprising a coil. The present invention also relates to the use of a packaging device for induction heating of a rolling element bearing, and to a method for manufacturing a packaging device for a rolling element bearing.

Abstract: A pressure inside a chamber in which a bearing is arranged is reduced. Thus, a pressure inside an oil tank and the pressure inside the chamber are made lower than atmospheric pressure, and are placed in a minimal or no pressure difference condition. Next, a lubricating oil is supplied from the oil tank into the chamber through power of a liquid transfer pump. The lubricating oil is thus injected into the bearing inside the chamber. Thus, the lubricating oil can be supplied from the oil tank into the chamber while maintaining the pressure at substantially the same level lower than that of the atmospheric pressure. Accordingly, gas can be prevented from dissolving into the lubricating oil which has once been deaerated by a pressure reduction inside the oil tank. In addition, because a driving force of the liquid transfer pump is used for supply of the lubricating oil, it is easy to control the amount of the lubricating oil to be supplied.

Abstract: A method of producing a wheel bearing apparatus includes: performing positioning of a slinger of a sealing device with respect to a base shaft portion of a hub spindle by pressing a jig to press-fit the slinger to the base shaft portion, using an inner ring contacted surface, which is a step portion between a small-diameter shaft portion and a large-diameter shaft portion of the hub spindle, as a reference surface; and fitting, after the slinger is press-fitted to the base shaft portion, an inner ring to the small-diameter shaft portion such that the inner ring reaches a position at which the inner ring comes into contact with the inner ring contacted surface, in a state where an outer ring, rolling elements, and the sealing device have been assembled to the hub spindle.

Abstract: An assembly comprises a component and a spherical bearing mounted in a bore of the component. The spherical bearing comprises an outer race received within the component bore, an inner spherical member mounted for rotation within the outer race and a releasable retaining element for releasably retaining the outer race in the component bore. The outer race and the component comprise interengaging indexing formations whereby said outer race may be mounted within said component bore in a plurality of angular positions relative to the longitudinal axis (A) of the component bore.

Abstract: A vertical in-line split couple pump includes a motor shaft having a motor shaft collar; a pump shaft having a pump shaft collar with a pump shaft angled collar surface oblique to an axis of the motor and pump shafts; and a coupler having coupler halves that attach together, that have a couple groove to receive the motor shaft collar, and have a couple angled groove to receive the pump shaft collar. The couple angled groove has a couple angled groove surface oblique to the axis. The coupler halves respond to a force that moves them together to couple the pump and motor shaft together, moves the pump shaft angled collar surface in relation to the couple angled groove surface, causing the pump shaft to move upwardly towards the motor shaft along the axis, to provide a way to jack-up and recouple the pump shaft and any impeller attached thereto by one mechanic.

Abstract: A constant velocity joint has an inner race and a sleeve. The sleeve connects with the inner race. In addition, the sleeve connects with a pinion shaft via splines. A nut attaches to the sleeve and also the shaft. The nut/shaft attachment is through threads.