Abstract: A ventilation fan includes a shaft, a rotor, a motor housing, a bearing housing, and an air bearing. The shaft has a shaft body that extends between a first shaft end and a second shaft end. The shaft body defines a first port and a bore. The rotor is disposed about the shaft. The motor housing is disposed about the shaft and is axially spaced apart from the rotor. The bearing housing is disposed about the shaft. The air bearing is disposed proximate the second shaft end and is disposed between the bearing arm and the second shaft end.

Abstract: Conventional gas turbine engines are generally optimized to operate at nearly a fixed speed with fixed blade geometries for the design operating condition. When the operating condition of the engine changes, the flow incidence angles may not be optimum with the blade geometries resulting in reduced off-design performance. By contrast, according to embodiments of the present invention, articulating the pitch angle of turbine blades in coordination with adjustable nozzle vanes improves performance by maintaining flow incidence angles within the optimum range at all operating conditions of a gas turbine engine. Maintaining flow incidence angles within the optimum range can prevent the likelihood of flow separation in the blade passage and also reduce the thermal stresses developed due to aerothermal loads for variable speed gas turbine applications.

Abstract: A modular fan assembly includes a center hub assembly and a first blade attached to the center hub assembly. The center hub assembly includes a first plate and a second plate each having an outer edge and a planar capture surface. The planar capture surfaces of the second plate is arranged parallel to the planar capture surface of the first plate. The first blade includes a mounting pad and a working portion. The mounting pad has opposite, parallel planar surfaces positioned in contact with the respective planar capture surfaces of the first and second plates. The working portion extends beyond the outer edges of the first and second plates. A thickness of the first blade is smaller proximate the outer edge of the first plate than at the mounting pad to create a first gap between the first blade and the first plate at the outer edge.

Abstract: A compressor section for a gas turbine engine includes a blade including a platform, a tip and an airfoil extending between the platform and tip. The airfoil includes a root portion adjacent to the platform, a midspan portion and a tip portion. Each of the root portion, midspan portion and tip portion define a meridional velocity at stage exit with the tip portion including a first meridional velocity greater than a second meridional velocity of the midspan portion. A blade for an axial compressor of a gas turbine engine and a method of operating a compressor section of a gas turbine engine are also disclosed.

Abstract: A centrifugal compressor is able to cause air to efficiently flow to an impeller thereof, and enables improvement of operating efficiency. The centrifugal compressor has: a casing having an inlet flow channel and a connection flow channel formed therein, the inlet flow channel having a suction port provided at one place thereof, the connection flow channel being connected to the inlet flow channel; a main shaft inserted in the casing; an impeller fixed to the main shaft and arranged in the inlet flow channel; and an inlet guide vane unit having a plurality of inlet guide vanes arranged upstream of the impeller of the inlet flow channel. In the inlet guide vane unit, an arrangement interval between inlet guide vanes at a suction port side is narrower than an arrangement interval of inlet guide vanes at a side opposite to the suction port side.

Abstract: According to one aspect, a fan containment case for a gas turbine engine is provided which includes a barrel having a first band of material on an outside of the barrel. The first band is made of carbon fiber composite. The barrel further includes a second band of material inboard of the fan case and made of poly p-phenylene-2,6-benzobisoxazole (PBO) composite. The barrel also includes a third band of material made of carbon fiber composite inboard of the second band.

Abstract: An assembly can include a shaft that includes threads and a free end that includes a shaft drive feature; a compressor wheel that includes a compressor wheel drive feature and a through bore that receives the shaft; and a nut that includes threads that mate the threads of the shaft.

Abstract: The present invention is to provide a fan, comprising a nozzle mounted on a base; the nozzle comprising a first wall, a second wall, and a Coanda surface for producing Coanda effect, wherein the first wall assembles abreast to the second walls producing a slot to form a nozzle airflow outlet.

Abstract: A jet pump, a jet pump data tool system, and method of use thereof. The jet pump includes a body having an intake, a first aperture, and a second aperture between the first aperture and the intake. A carrier is seated in the body and receivable in the first aperture. The carrier includes a venturi for drawing wellbore fluid from the intake into the venturi. A housing for a data tool extends from the carrier. The housing is in fluid communication with the intake for allowing wellbore fluid to be exposed to the data tool. The carrier is seatable in the body by flowing power fluid and the carrier into the first aperture. The carrier is retrievable from the body by flowing power fluid into the second aperture.

Abstract: An accumulator is provided, which is aimed at stabilization in mounting state of a damping member while diminishing the impact on a metal bellows. In an accumulator (100), a damping member (190) formed slidably at the inner circumferential surface of a pressure vessel (110) and suppressing the oscillation of a metal bellows (130) while keeping a gap between the metal bellows (130) and the inner circumferential surface of the pressure vessel (110) is mounted at at least one site of a plurality of annular valley parts of the metal bellows(130) including a plurality of annular crest parts and the plurality of annular valley parts alternately formed therein. In the damping member (190), a radially inward tip is fitted with the valley part, and a radially outward tip is longer than the crest part of the metal bellows radially and outwardly.

Abstract: An apparatus including an accumulator and a drive mechanism. The accumulator includes an energy storage apparatus with a first piston face configured to reversibly compress an energy storage medium and a second piston face forming at least part of an inner surface of a corresponding second fluid chamber reversibly expandable by movement of the second piston face. A third piston face forms at least part of an inner surface of a corresponding third fluid chamber reversibly expandable by the third piston face.

Abstract: A hydraulic stabilizing system includes a pump having first and second flow ports, and first and second actuators, each having an extend chamber and a retract chamber. A first pilot-operated check valve is installed between the pump first flow port and the extend chamber of the first actuator. A second pilot-operated check valve is installed between the pump first flow port and the extend chamber of the second actuator. A third pilot-operated check valve is installed between the pump second flow port and the retract chambers of the first and second actuators. The pilot ports of the first and second pilot-operated check valves are coupled to the second pump flow port, and the pilot port of the third pilot-operated check valve is coupled to the first pump flow port.

Abstract: A rotary actuator includes a housing, a rotor assembly rotatably journaled in said housing and including a rotary output shaft, a central actuation assembly including a central mounting point formed in an external surface of the rotary output shaft, said central mounting point proximal to the longitudinal midpoint of the rotary output shaft, a mounting assembly adapted for attachment to an external mounting connector of a mounting surface of an aircraft structural member, and an actuation arm removably attached at a proximal end to the central mounting point, said actuation arm adapted at a distal end for attachment to an external mounting feature of an aircraft assembly to be actuated.

Abstract: A holder system for an electronic apparatus (46), having a holding piece (20), provided for fastening in a locationally fixed manner, and a mounting (40) that is connectable to the holding piece (20) and to which the electronic apparatus (46) is releasably fastenable is characterized in that the holding piece (20) on a fastening plate (29), and the mounting (40) on a rear wall (41), have fastening elements (52), (53) which by means of a rotating movement of less than 180° are conjointly movable from an initial position to a latching position, and in that magnets (50), (51) or ferromagnetic pieces are inserted into the fastening plate (29), on the one hand, and into the rear wall (41), on the other hand, such that an increasing magnetic pull is present from a placing position to the latching position.

Abstract: A clamping system that includes a first jaw, a second jaw—the second jaw being pivotally connected to the first jaw—a locking handle pivotally connected to the first and second jaws, an adjustment element, first and second lever arms, and a release lever secured to the locking handle and configured to move the locking handle away from the first jaw.

Abstract: A system and method for securing adjoining walls without requiring the use of tools is disclosed. A plurality of walls may mate with each other through the use of grooves within each wall to sit flush with each other. A plurality of locking keys may be used to further secure the walls to each other. If disassembly is required, a user may quickly disassemble the present invention by removing the keys and reversing the steps taken to secure the walls to each other. The entire system may pack flat and be stacked once disassembled.

Abstract: Joints for joining panels together, such as for joining honeycomb sandwich panels used in aerospace applications, and methods of joining said panels are disclosed. In some examples of disclosed joints, a first panel and a second panel can be joined together to form a joint. The first panel can be a flat panel that includes a rabbet formed along a first longitudinal edge, and the second panel can be a curved panel that includes a notch formed along a second longitudinal edge. In forming the joint, a portion of the rabbet can be positioned within the notch, and the flat panel and curved panel can be oriented at a non-parallel and non-perpendicular angle to one another. Adhesive can be applied along the rabbet and/or the notch in order to secure the joint.

Abstract: A drive arrangement for driving an actuator is provided. The drive arrangement includes a drive device and a housing part which can be connected to or is connected to the drive device. At least one first plug-in element is arranged or configured on the drive device in the form of a pin- or peg-like plug-in projection. At least one second plug-in element corresponding to the at least one first plug-in element is arranged or configured on the housing part, and includes bore-like sockets. The drive device is connectable to the housing part via a plug-in connection at the first plug-in element and the second plug-in element.

Abstract: A connector device for connecting to one or more pipes. The connector device having one or more arms with static and flexible portions. The connector device connects pipes or other types of tubing by inserting the arms of the connector device into the openings of the tubing. A flexibility of the flexible portions enables the connector device to accommodate varying dimensions of inside diameter of pipes or tubing and to provide a friction fit.

Abstract: A connecting device (1) for two components (4, 5) of a patient support surface is provided, said connecting device having a locking assembly (2) that is to be provided on a first component (4), and a coupling point (3) that is to be provided on a second component (5). The first and the second components (4, 5) can be connected to one another and locked in a locking position, the coupling point (3) having a locking receptacle (6) in the form of a recess. The locking assembly (2) has a support (7) that is mounted on the first component (4) and a locking element (8) that is pivotably mounted on the support (7) via a pivot bearing point (9). The locking element (8portion (12) that is received in the locking receptacle (6) in the locking position, a bearing portion (10) on which the pivot bearing point (9) is provided, and a disengagement portion (13) that is on a different side from the locking portion (12) in relation to the bearing portion (10).

Abstract: In a bolt holding device with a bolt draw-in arrangement engaging the bolt for joining for example furniture parts, a bolt retaining arrangement is provided which blocks the bolt draw-in arrangement when the bolt is not positioned in the bolt holding device and a release element is associated with the retaining arrangement which can be activated by the insertion of the bolt for drawing the bolt fully into, and locking it in, the bolt holding device. With the bolt holding device, furniture pieces for example can easily be assembled by an end user without the need for particular tools.

Abstract: A frame assembly body includes a connected section in which one ends of first and second frame materials, each of which has plural bent sections and plural surfaces, are joined perpendicularly. The connected section has: a projected piece locking section in which a slit-shaped fitting hole, a notch, or a recessed section formed in the second frame material is fitted to a projected piece provided in the first frame material; and a slit fitted section in which a slit-shaped notch formed in the second frame material is fitted to a fitting slit formed in a manner to notch the first frame material.

Abstract: A method and device for sealing a space about a fastener in a cavity wall including a device having a sealing body which receives the fastener.

Abstract: Applicant provides a number of embodiments of a sealant, the sealant comprising a polyurethane gel which, in some embodiments, has a thickness of 12 mil or less (uncompressed). Uses of the sealant are shown, including uses between aircraft parts under compression. Sometimes the sealant may have a very thin skeleton. Sometimes the sealant is in the form of a die cut gasket, a tape or a tacky gel sprayable. Methods for making the sealant are also disclosed. The sealants may be used pre-cured or may be sprayed on to the aircraft parts and form in place.

Abstract: This clip is used for, for example, attaching and constraining one member to the other member in a detachable manner, and is provided with a head disposed so as to block off a through hole of one of the members among through holes formed through the two members, and a leg which is inserted in the through hole, and which engages the back side of the other member. The clip is at least provided with a first member having a head, a suction part protruding from the circumference of the head, and an insertion hole in the axial direction, and a second member having a head overlaid so as to have a watertight structure with the head of the first member, and the leg formed perpendicularly with respect to the head, and inserted in the insertion hole.

Abstract: A threaded fastener system, incorporating a bolt and a nut assembly, wherein the bolt has a threaded lead entry point whose pitch and helix angle are of a higher magnitude than that of those on the body/shank of the bolt.

Abstract: A cabling unit for connecting electrical devices to power supply bus bars having a longitudinal cavity accessible through a longitudinal slot includes: a screw with a hammer head and a threaded shank provided with two lateral reliefs; a shaped casing configured to be received in the longitudinal cavity, in which there is identified a shaped housing configured to receive the hammer head, an elastic bottom and a through opening for the threaded shank. The elastic bottom counteracts the bottom of the longitudinal cavity and pushes the underhead surface of the hammer head against the inner wall of the longitudinal cavity opposite to the bottom and constrains the screw to the power supply bus bar when a rotation imparted to the screw arranges the hammer head transversely to the longitudinal slot.

Abstract: An alignment tie rod device for connecting multiple components from generally opposite directions includes a shaft extending along a centerline. A first structure of the device includes opposing first and second rims and a base portion spanning between the rims. The base portion and rims define a channel that extends substantially normal to the centerline. A hole in the base portion is centered between the rims and communicates through the base portion for receipt of the shaft. An anti-rotation feature disposed operably within the channel is rigidly engaged to and projects radially outward from the shaft in diametrically opposed direction. The feature has diametrically opposite, arcuate, edges each having a radius of curvature that is substantially greater than a distance measured between the rims.

Abstract: A thrust washer for an internal combustion engine may include a metal base having a contact surface and a slip surface. The contact surface may be in operative communication with an engine block. The slip surface may define at least one ramp section, at least one flat horizontal section, and at least one oil channel. The ramp section and the flat horizontal section may be connected via an asymptotic curved surface. The ramp section may be positioned asymptotically towards the flat horizontal section.

Abstract: A hub unit includes an outer ring, an inner shaft, rolling elements and a sealing device. The outer ring includes an outer ring body and an outer ring flange. The inner shaft includes an inner shaft body and an inner shaft flange. The outer ring body includes a first portion and a second portion. The first portion is an end part on the outer side of the outer ring body. The second portion is a part of the outer ring body between the first portion and the outer ring flange. The second portion includes an upper build-up portion. The upper build-up portion is formed in an upper part of the second portion and a thickness of the build-up portion is larger than thicknesses of side parts of the second portion. An upper end of the upper build-up portion is higher than an upper end of the first portion.

Abstract: A refrigerant compressor includes a compression mechanism portion, a drive portion, a crankshaft, a main bearing and an auxiliary bearing that support the crankshaft, and a sealed container that accommodates therein the compression mechanism portion, the drive portion, the crankshaft, the main bearing, and the auxiliary bearing. The auxiliary bearing is configured of an antifriction bearing and provided in an auxiliary bearing housing attached to the sealed container. The auxiliary bearing housing includes an opening for inserting the auxiliary bearing on the drive portion side, and includes a housing cover covering the opening. An insulating sleeve configured of an insulating material is provided between the crankshaft and the auxiliary bearing. The insulating sleeve includes a cylinder portion located between the crankshaft and the auxiliary bearing, and a flange portion located between the auxiliary bearing and the housing cover and extended in an outer diameter direction.

Abstract: A support structure for a bellows attached to a slide table, and which is capable of expanding and contracting in a movement direction of the slide table, includes support members that support the bellows, shafts disposed substantially in parallel with the movement direction of the slide table, and bushes that support the support member so as to be capable of moving in the movement direction of the slide table with respect to the shafts. Fluid bearings are formed by supplying a fluid between the bushes and the shafts.

Abstract: To provide a linear guide device having a higher dustproof performance and a dustproof function with a higher degree of freedom. A linear guide device includes a guide rail, a slider, and a rolling element, a seal member which seals a gap formed between a side surface portion of the guide rail and an inner side surface portion of the slider. The seal member includes a first seal member provided at the inner side surface portion of the slider, and a second seal member which is larger in width than the first seal member and is provided in a bottom surface portion of a slider body to be independently detachable from the bottom surface portion, as superimposed on the first seal member.

Abstract: An electric power generation and brake device disposed on a shaft includes: a wheel, a stator unit and a brake unit; the wheel comprising: an outer ring disposed around an edge of the wheel, an inner ring on the wheel and configured between the outer ring and an axis of the wheel, and a plurality of permanent magnets configured on one surface of the outer ring; the stator unit, comprising: a stator body, a plurality of first serrated portions disposed around an outer peripheral surface of the stator body, and a plurality of electric generating coils; the brake unit, comprising: a brake body fixed on the shaft or the stator body and configured between the inner ring and the axis of the wheel, a plurality of second serrated portions, and a plurality of brake coils; with the arrangement to resist vibration and reduce noise.

Abstract: A coordinate measuring apparatus is provided having at least one measuring system and at least one support structure on which the measuring system is disposed, wherein the measuring system is displaceably mounted in the support structure and/or the support structure is displaceably mounted, and wherein the coordinate measuring apparatus includes an air bearing arrangement for mounting two components to be movable relative to one another. The air bearing arrangement includes at least one air bearing which provides a compressed air cushion between the components, wherein the air bearing has at least one compressed air supply line by way of which the compressed air can be provided, wherein a flow rate meter by way of which the flow rate of compressed air to the air bearing can be detected is provided in the compressed air supply line.

Abstract: A gas bearing assembly includes a snap joint for attaching an externally pressurized porous gas bearing to a bearing cartridge. The gas bearing assembly has an adjustment screw which supplies a gas to an end of the adjustment screw via a through bore. The externally pressurized porous gas bearing has a housing portion with a washer and a snap ring. The gas bearing assembly additionally includes an air transfer tube positioned in the end of the adjustment screw and the housing portion. The washer and the snap ring retain the housing portion on the end of the adjustment screw to removably retain the bearing on the bearing cartridge.

Abstract: A self-lubricating slide module is provided. The slide module comprises a rail and a slider. The slider includes a metal member and a plastic member, wherein the metal member includes at least one engaging structure. The plastic member binds to the metal member by injection molding, so as to cover at least a portion of the metal member, and be embedded into the engaging structure to firmly engage to each other.

Abstract: A bearing assembly includes at least one rolling-element bearing that includes a bearing outer ring and a bearing inner ring and rolling elements disposed therebetween. The at least one rolling-element bearing is mounted in a component with the bearing outer ring in contact with the component, and the outer bearing ring includes a first edge surface extending between a rolling-element raceway and a radial end surface of bearing ring, and/or a second edge surface extending between an axial outer fitting surface and the radial end surface of the bearing ring. The component includes, on a surface facing the first and/or second edge surface, at least one material accumulation that interacts with the first and/or second edge surface.

Abstract: A retaining element configured to retain an outer ring of a bearing in a housing, the retaining element having a body having a first side and a second side and a substantially circular through-hole extending from the first side to the second side and an axial thickness from the first side to the second side. A boundary of the through-hole includes two or fewer recesses. The retaining element is configured to hold an attachment element in the two or fewer recesses, the attachment element being configured to engage a groove in a bearing to hold the bearing in the retaining element.

Abstract: An oil supply device provided on a slider main body of a linear motion guide device includes: a storing member; an applicator; and a container. In the container, a storing member accommodation portion and an applicator accommodation portion are provided to be arranged in an up-down direction. A communication hole for guiding the lubricant from the storing member accommodation portion to the applicator accommodation portion is formed in the up-down direction in a partition portion which partitions the applicator accommodation portion and the storing member accommodation portion. The communication hole includes a small diameter portion which is positioned on the applicator accommodation portion side and a large diameter portion which is positioned on the storing member accommodation portion side. The storing member includes a protrusion portion capable of fitting into the large diameter portion.

Abstract: A support assembly for movable shafts including a bearing for receiving the movable shaft, a bearing housing having an annular housing, in an internal seat that is mounted to the bearing, and a lid to close fluid tight an opening of the seat for the bearing, the cover is made in one piece in a polymeric material and has a portion that is coupled on a radially outer lateral surface for housing the annular element and that is provided with an annular sealing lip which extends frontally projecting from a front edge of the coupling portion, which is made of the same polymeric material of the cover and which is elastically deformable in the radial direction from the inside towards the outside. The annular sealing lip being coupled with interference with a portion of the radially outer conical lateral surface housing the annular element.

Abstract: A seal device of a vehicle wheel-bearing unit includes a leak prevention seal lip and a scatter prevention seal lip, wherein a front end part of the leak prevention seal lip is in slidable contact with an axially inboard surface of a rotational-side flange in a state of having an interference throughout an entire circumference, and an axially middle part of the scatter prevention seal lip is provided at a radially more outer position than an indifferentiable part that is present between an axially inboard surface of a thick wall part and an axially inboard surface of a thin wall part and in a state where the axially middle part of the scatter prevention seal lip is radially overlapped with the indifferentiable part.

Abstract: An elastic body of an elastic shaft coupling includes a connection portion disposed around a center axis of the elastic shaft coupling, and a plurality of rotation transmission portion of substantially columnar shapes provided for the connection portion along the circumferential direction of the elastic shaft coupling, and extending from the connection portion along the center axis. Outer circumferential portions of the rotation transmission portions are in surface contact with a first hub main body portion and first protrusion portions of a first hub, and a second hub main body portion and second protrusion portions of a second hub.

Abstract: Circumferential rigidity of both axial end portions of each coupling-side convex portion is lower than circumferential rigidity of an axially intermediate portion of each coupling-side convex portion. The drive-side concave-convex portion is engaged with a half portion on the other axial side of the coupling-side concave-convex portion. The driven-side concave-convex portion is engaged with a half portion on one axial side of the coupling-side concave-convex portion.

Abstract: A constant-velocity joint includes an outer race, inner race, end cap, and seal. The outer race defines a cavity, an opening to the cavity, and a through hole configured to receive a fastener. The inner race is disposed within the cavity and is rotatably connected to the outer race via a plurality of ball bearings. The end cap is secured to the outer race and covers the opening. The seal is disposed between the outer race and the end cap. The seal defines a channel that is in fluid communication with the cavity and the through hole. The channel is configured to vent air between the cavity and through hole.

Abstract: Some OEM clutch suppliers provide a clutch system that is welded closed and accordingly these systems are difficult to maintain, service and/or upgrade, for example after drive or driven (friction) disks have worn out. Typically, these systems are intended to be entirely replaced. Alternatively, in order to access the clutch internals the welded assembly needs to be cut open and only then can the disks can be replaced. After re-assembly, re-welding is required in which alignment of components is difficult to achieve and costly. The serviceable clutch housing system provides a solution to overcome the disadvantages of a non-serviceable OEM clutch product by providing a means to retrofit to the clutch allowing assembly and disassembly of the clutch, while maintaining many of the original OEM parts. This results in reduction in the maintenance cost and time required for assembly after servicing.

Abstract: A controllable or selectable coupling assembly includes a plurality of forward locking elements, at least one reverse locking element and first and second coupling members supported for relative rotation about a common rotational axis. The coupling members include a first, second and third coupling faces. The first coupling face has a set of forward pockets angularly spaced about the axis. The second coupling face has a set of reverse locking formations adapted for abutting engagement with the at least one reverse locking element. The third coupling face opposes the first coupling face and has a set of forward locking formations. Either forward backlash is a non-zero integer multiple of reverse backlash or the reverse backlash is a non-zero integer multiple of the forward backlash to prevent the coupling assembly from inadvertently binding in both directions (i.e. a “lock-lock” condition) about the axis.

Abstract: A method for controlling the engagement of a power take-off (PTO) clutch of a work vehicle may generally include implementing one or more recovery actions to prevent the clutch from being damaged and/or to prevent the vehicle's engine from stalling. For instance, an energy-related recovery action may be implemented when an estimated clutch energy transmitted through the PTO clutch is greater than or equal to a maximum allowable clutch energy associated with the clutch. In addition, or as an alternative thereto, a stall-related recovery action may be implemented when the engine speed is less than or equal to a predetermined engine stall speed and the speed deceleration rate for the engine is greater than or equal to a predetermined deceleration rate threshold.

Abstract: A method for determining a connection state of an engine clutch includes: a stroke sensing operation of sensing, by a controller, a change of an actuator stroke of the engine clutch; a first pressure comparing operation of determining whether or not an actuator pressure of the engine clutch exceeds a first set pressure and is then changed to below the first set pressure when the actuator stroke is increased; a torque comparing operation of comparing transfer a torque of the engine clutch with a set torque when the actuator pressure exceeds the first set pressure and is then operated to below the first set pressure; and an open determining operation of determining that the engine clutch is in an open state when the transfer torque of the engine clutch is the set torque or less.

Abstract: A controllable one-way clutch has a first annular ring with a central axis of rotation and an outer periphery with at least one tooth. A second annular ring is arranged concentrically with the first annular ring and has a second periphery. A pivotal member is connected to the second annular ring and may be pivoted to an engaged position, when the pivotal member is engaged with the tooth of the first annular ring, from a disengaged position. The pivotal member is in the disengaged position when it is not engaged with the tooth. A sensor fixed to either the first or second annular ring detects the presence of the tooth as the first annular ring rotates. A controller is programmed to prevent the pivotal member from engaging the first ring in response to the sensor indicating the rotational speed of the first annular ring exceeds a threshold.