Abstract: Provided is a cryopump enabling the maintaining of a preset temperature during a preset time, even when turned off. The cryopump may comprise: a displacer which adjusts outside temperature by compressing or expanding a refrigerant existing therein; a thermal conduction part which transfers heat outside the cryopump to the refrigerant; and a thermal conduction buffer part which, if the displacer is turned off, absorbs the heat outside that is transferred to the refrigerant, and uses same as energy for changing a phase.

Abstract: The present invention provides a portable battery steam cleaner comprising in combination of a hollow main body, in which a water tank, peristaltic pump, control system and lithium battery; the water tank in connection with the input of the peristaltic pump; the output of the peristaltic pump in connection with one end of silicone hose; and the other end of silicone hose in connection with the steam generator. The present invention can continuously transport liquid from the water tank, through the silicone hose, into the steam generator, and thus eject steam continuously for cleaning purposes.

Abstract: A portable air compressor including a housing, an air compressing assembly within the housing, the air compressing assembly including a switch, a motor, a gear assembly, and a piston, and a storage unit integrated as part of the housing and retaining a power cord and an adapter.

Abstract: An analysis system may determine a discharge pressure or a suction pressure using a single measurement sensor coupled to a computing device. The measurement sensor may include a pressure sensor or a strain sensor. In some aspects, the pressure sensor may generate a pressure signal representing the total pressure in a chamber of the pressure pump. The computing device may apply an envelope filter to the pressure signal to determine the discharge or suction pressure in the chamber from the pressure signal. In other aspects, the strain sensor may generate a strain signal representing the strain in the chamber. The computing device may determine the discharge or suction portions of the strain signal and may correlate the portions with a predetermined internal pressure for the pressure pump to determine the discharge or suction pressure in the chamber.

Abstract: A screw pump pumps a fluid from an inlet port to a discharge port by rotating one drive screw and at least one driven screw which mesh with each other and includes the drive screw being rotatable about a drive rotation shaft, the driven screw to be driven by the drive screw and being rotatable about a driven rotation shaft, a drive journal provided coaxially with the drive screw and to rotate integrally with the drive screw, a driven journal provided coaxially with the driven screw and to rotate integrally with the driven screw while making contact with the drive journal along a contact line between the drive rotation shaft and the driven rotation shaft, a case including a cylinder that receives the drive screw and the driven screw, and a bearing member to rotatably support the drive journal and the driven journal.

Abstract: A pump for conveying a fluid includes a pump housing, an eccentric, a deformable element arranged in a pump gap between the inner circumferential surface of the pump housing, and an outer surface of the eccentric, such that a conveying channel is formed from an inlet to an outlet. A stationary seal is provided between the outlet and the inlet and prevents a backflow of the fluid from the outlet back to the inlet. The inner circumferential surface of the pump housing has a recess in the region of the stationary seal, and the deformable element is tensioned fluid-tight at the inner circumference surface in the region of the recess using a pin.

Abstract: The scroll compressor (1) includes a fixed scroll (7); an orbiting scroll (8); a drive shaft (16); a support arrangement (5) including a thrust bearing surface (9) on which is slidably mounted the orbiting scroll (8); a rotation preventing device configured to prevent rotation of the orbiting scroll (8) with respect to the fixed scroll (7), the rotation preventing device including orbital discs (28) respectively arranged in circular receiving holes (29) provided on the support arrangement (5), each orbital disc (28) being provided with an outer circumferential bearing surface (31) cooperating with an inner circumferential bearing surface (32) of the respective circular receiving hole (29); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces (32, 31) with oil supplied from an oil sump (50), the lubrication system including lubrication passages (41) formed within the support arrangement (5), each lubrication passage (41) including an oil outlet aperture (41.

Abstract: An electric compressor includes a compression portion, an electric motor portion, a motor drive circuit portion, and a housing in which the compression portion, the electric motor portion, and the motor drive circuit portion are arranged in this order in an axial direction. The electric compressor further includes a partition wall, a refrigerant inlet, and a conductive member. The refrigerant inlet is disposed at a position in the housing closer to a partition wall than to the compression portion. The conductive member electrically connects the motor drive circuit portion and the electric motor portion. The electric compressor includes a shield member configured to block flow of refrigerant taken in through the refrigerant inlet and flowing toward the conductive member. The shield member is disposed in the electric motor portion so as to be located between the refrigerant inlet and the conductive member.

Abstract: A scroll compressor including a casing; a compression unit provided in an inner space of the casing to form a compression chamber by a pair of two scrolls; a bypass hole provided in the compression unit to bypass refrigerant suctioned into the compression chamber to the inner space of the casing; a bypass valve configured to selectively open and close the bypass hole to vary a compression capacity of the compression chamber; a back pressure chamber provided on a rear side of either one of the pair of two scrolls to support the scroll in the other scroll direction; a back pressure passage configured to communicate between the compression chamber and the back pressure chamber; and a back pressure valve configured to selectively open and close the back pressure passage.

Abstract: A compressor (20) comprises: a housing assembly (22) having a plurality of ports including a suction port (24) and a discharge port (26); a male rotor (30) mounted for rotation about an axis (500); a female rotor (32) enmeshed with the male rotor and mounted in the housing for rotation about an axis (502) for drawing a flow from the e suction port, compressing the flow, and discharging the compressed flow through the discharge port. The housing assembly comprises: a motor case (54); and a cover (60) bearing the suction port. The cover comprises a unitary piece forming: a mounting portion (63) mounted to an adjacent end (55) of the motor case, said adjacent end being large enough to pass the motor; and a fitting portion (62) extending to a rim (66) at the suction port and bearing an external groove (200).

Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity and a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The stator assembly is configured to impart a first axial force on the rotor assembly. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. A fluid channeled by the impeller imparts a second axial force on the impeller. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.

Abstract: A method of operating a pumping system for an aquatic application based upon performance of multiple water operations is disclosed. The method includes providing a pump and a motor coupled to the pump, and a controller including a variable speed drive that is in communication with the motor. The method also includes: operating the motor in accordance with a first water operation, wherein the first water operation includes a first start time, end time, and water flow rate: operating the motor in accordance with a second water operation, wherein the second water operation includes a second start time, end time, and water flow rate; and altering the first water operation in response to performance of the second water operation.

Abstract: An electric motor assembly includes a bearing assembly including a rotating component and at least one stationary component. The electric motor assembly also includes an impeller coupled to the rotating component. The impeller includes an inlet and an outlet and is configured to direct a fluid between the inlet and the outlet. The electric motor assembly also includes a rotor assembly directly coupled to the impeller. A fluid flow channel is defined between the rotating component and the at least one stationary component. The flow channel includes a first end proximate the impeller outlet and a second end proximate the impeller inlet.

Abstract: A computer implemented method for the prediction of the surge point of a compressor includes: generating a plurality of meshes: a compressor inlet mesh, at least a compressor rotor stage mesh, and a compressor outlet mesh, representing a plurality of exit guide vanes and an exit nozzle and extending up to a final nozzle exit area; assembling the plurality of meshes to obtain the CFD domain; specifying boundary conditions of the computational domain; specifying atmospheric pressure conditions at the final nozzle exit area; computing compressor inlet mass flow rate and compressor pressure ratio; checking if the numerical stability limit is not reached, as a result of the numerical stability limit not being reached: decreasing dimensions of the final nozzle exit area; generating again the compressor outlet mesh; repeating the steps of specifying atmospheric pressure at the final nozzle exit area, the step of computing, and the step of checking.

Abstract: A hydrodynamic bearing assembly includes a first stationary component, a shaft coupled to the first stationary component, and a second stationary component coupled to the shaft opposite the first stationary component. The hydrodynamic bearing assembly also includes a rotating component coupled to the shaft between the first stationary component and the second stationary component. The rotating component includes a first end surface including a first diameter and an opposing second end surface including a second diameter that is greater than the first diameter.

Abstract: A shaft seal device is fixed to a container that separates a high-pressure fluid and a low-pressure fluid from each other, and seals a shaft-penetrated portion of the container through which a rotational shaft extends. This shaft seal device includes: a seal casing having a through-hole through which the rotational shaft extends, the seal casing having a seal chamber which communicates with the through-hole and into which the high-pressure fluid flows; and a disk-shaped seal body which is housed in the seal chamber, the seal body being rotatable together with the rotational shaft and having an annular surface perpendicular to an axis of the rotational shaft. An inner surface of the seal casing, which faces the annular surface of the seal body and defines the seal chamber, is a flat surface perpendicular to the axis of the rotational shaft.

Abstract: A fan blade includes first and second titanium alloy portions that are secured to one another with an aluminum alloy braze that contains manganese. The first titanium alloy portion includes ribs, a root, and at least a portion of an exterior airfoil contour of the fan blade. The second titanium alloy portion includes another portion of the exterior airfoil contour. The ribs are secured to the second titanium alloy portion with the aluminum alloy braze. The first titanium alloy portion includes a tip, and leading and trailing edges. The second titanium alloy portion has a perimeter that is arranged inboard of the root, the tip and the leading and trailing edges.

Abstract: A blade for an impeller comprises a blade with a front portion with a leading edge and a trailing portion with a trailing edge joined by spaced apart pressure and suction sides to form an exterior blade surface. The blade pressure side is formed from an outer envelope of a first blade profile aligned in a first position; and at least a part of the front portion of the blade suction side is formed by rotating the first blade profile around the leading edge to match an angle of the incoming flow at a lower flowrate condition of the impeller.

Abstract: A turbomachine comprises a hub and a plurality of blade elements. Each blade element comprises a blade, a platform, and a tang. The plurality of blade elements are arranged circumferentially around the hub, each interlocking or affixed with an adjacent blade element and retained in position by the hub. Each blade elements formed from a single stamped blank to provide an inexpensive method of manufacture, for low cost turbomachinery.

Abstract: A radial compressor having a compressor rotor with blades; a compressor housing, a diffuser having guide vanes. The diffuser delimits a flow duct in radial direction. The guide vanes of have a flow inlet edge, a flow outlet edge, and flow-conducting sides. The guide vanes project into the flow duct that is delimited by the diffuser. The guide vanes merge into a support body subject to forming a curvature region that is defined on the flow side. In each position of the curvature region, i.e. in the region of the flow inlet edge, in the region of the flow outlet edge and in regions between the flow inlet edge and the flow outlet edge a curvature radius that is defined on the flow side is formed in each case.

Abstract: The invention relates to a flow rectifier for an axial fan as well as to an axial fan having a flow rectifier. A flow rectifier according to the invention for an axial fan with a hub and at least one vane is characterized in that the at least one vane can be operatively connected to the hub so as to be detachable. Since the vane and the hub can be connected so as to be detachable, the flow rectifier has a modular structure.

Abstract: A geared gas turbine engine comprises at least one compressor, at least one turbine, a fan, a gearbox and a support structure. At least one turbine is arranged to drive the fan via the gearbox. The fan is rotatably mounted in the support structure and the support structure supports the gearbox. The support structure includes a stator vane arrangement comprising a plurality of circumferentially spaced stator vanes extending radially between inner and outer annular walls. The inner annular wall has two axially spaced radially inwardly extending annular flanges and a plurality of circumferentially spaced buttresses extending axially between the annular flanges. The outer annular wall has two axially spaced radially outwardly extending annular flanges and a plurality of circumferentially buttresses extending axially between the annular flanges. The flanges and buttresses increase the strength of the support structure to carry the torque loads of the gearbox.

Abstract: Variable vane devices containing rotationally-driven translating vane structures are provided, as are methods for fabricating variable vane devices. In one embodiment, the variable vane device includes a flow assembly having a centerline, an annular flow passage extending through the flow assembly, cam mechanisms, and rotationally-driven translating vane structures coupled to the flow assembly and rotatable relative thereto. The translating vane structures include vane bodies positioned within the annular flow passage and angularly spaced about the centerline. During operation of the variable vane device, the cam mechanisms adjust translational positions of the vane bodies within the annular flow passage in conjunction with rotation of the translating vane structures relative to the flow assembly.

Abstract: An impeller back surface cooling structure for cooling a back surface of a compressor impeller of a supercharger includes: a first member facing a back surface of a compressor impeller via a gap; and a second member extending in a circumferential direction of the compressor impeller and forming, between the first member and the second member, a cooling passage through which a cooling medium being a liquid flows.

Abstract: An electric motor assembly for pumping a fluid through a fluid cavity includes a stator assembly including a plurality of conduction coils configured to transmit heat energy to the fluid within the fluid cavity. The electric motor assembly also includes a rotor assembly positioned adjacent the stator assembly to define an axial gap therebetween. The electric motor assembly also includes an impeller directly coupled to the rotor assembly opposite the stator assembly such that the rotor assembly and the impeller are configured to rotate about an axis. The rotor assembly and the impeller are configured to be submerged in the fluid within the fluid cavity.

Abstract: A blower includes an impeller that rotates around a central axis extending in an up-down direction; a motor that is disposed at one side in the up-down direction with respect to the impeller, and rotates the impeller; a motor housing that houses the motor; a fan casing that houses the impeller and the motor housing, and forms a first flow passage between the fan casing and the motor housing; and a substrate disposed at the one side in the up-down direction with respect to the impeller. One and the other end portions in the up-down direction of the fan casing respectively have first and second openings communicating with one another via the first flow passage. A capacitor is disposed on the substrate, at least a portion of the capacitor overlapping the first flow passage in plan view.

Abstract: Features for a valve assembly are described. The features can include a pair of spaced walls having apertures defining non-linear exit flow paths for the fluid, such as air, exiting the valve. In some embodiments, the features are described for a bleed valve assembly, to reduce the decibels produced when used in high pressure contexts, such as aircraft engines. The noise suppression features are integrated with the valve assembly. A valve, such as a stem and valve head, can move within the assembly between open and closed positions. The valve assembly can be manufactured using additive layer manufacturing (ALM) to create a monolithic housing that in some embodiments has the noise suppression features built into the assembly.

Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.

Abstract: A wind turbine includes a plurality of wind turbine blades; a plurality of hydraulic actuators for controlling respective pitch angles of the wind turbine blades; a first tank storing control oil for the hydraulic actuators; a first hydraulic pump disposed between the plurality of hydraulic actuators and the first tank, for pumping the control oil; a plurality of valves each of which is provided for corresponding one of the hydraulic actuators, for controlling a supply state of the control oil to the hydraulic actuator; and a control part for controlling each of the valves. The control part is configured to, in warm-up of a pitch hydraulic system of the plurality of wind turbine blades, perform an oil transfer operation of changing the pitch angle of the wind turbine blade from a feather side toward a fine side and then returning the pitch angle to the feather side.

Abstract: Presented herein are systems and methods that allow for adapting at least one dimension of an accumulator in a hydraulic system when faced with certain dimensional constraints and to vary the compliance or stiffness of an accumulator.

Abstract: A latch assembly is provided according to the present application, which includes a latch body and a guiding plate. The latch body is provided with a latch end configured to connect a device, and the guiding plate is provided with multiple positioning holes, the latch body is provided with multiple convex embedding blocks matching with the multiple positioning holes respectively, the latch body is further provided with a damper, and after the multiple embedding blocks of the latch body are inserted into the multiple positioning holes respectively, the damper clamps the guiding plate to achieve the connection. The latch assembly has a simple and compact structure, occupies a small volume, can be assembled and disassembled conveniently with a high efficiency, saves operation time and operation efforts.

Abstract: A clip for facilitating installation of foam insulation boards in a building structure. The clip comprises a body, a spacer and a foot for holding the insulation board, and a connection region for attachment of the clip to a building structural member. The clip is designed to ensure proper ventilation and greatly easy the proper installation of rigid foam insulation.

Abstract: A fastening unit for a radio and/or a sensor module includes at least one of a radio and a sensor module that is configured to connect with an external application unit. The fastening unit is detachably connectable to the at least one of the radio and sensor module.

Abstract: A support member is for supporting a conductive member such as an electrical wire and is for installation in an automatic transmission, and includes a main body portion made of a resin and plates that are made of a metal and are to be fixed to the body of the automatic transmission via bolts. The main body portion has attachment portions to which the plates are attached, and elastic lock portions that project within the attachment portions and have elasticity capable of restricting removal of the plates from the attachment portions.

Abstract: An assembly includes a first part made of composite material and a second part, which parts are held one against the other by at least one fastener system having a fastener element with a head from which there extends a shank. The fastener system further includes a bushing, the bushing including a collar presenting an inside face and an outside face of conical shape. The head of the fastener element bears against the inside face of the collar, while the outside face of the collar bears against a countersink formed in the first part.

Abstract: A locking mechanism is provided that attaches sheet pieces. The mechanism includes a sheet of material and various self-locking shapes that are cut therefrom, where this cutting forms an aperture in the sheet. Some of the self-locking shapes are releasably affixable to the aperture by removing them from the sheet, rotating them, and inserting the rotated shapes back into the aperture, where this releasable affixment results from a plurality of sides of the rotated shapes making contact with and laterally pushing against the aperture. One of the self-locking shapes is an ellipse which is releasably affixable to the aperture by rotating the ellipse while it is within and in planar alignment with the aperture until radially opposing sides of the ellipse make contact with and push against the aperture. A peripheral edge of another one of the self-locking shapes forms an ellipse and includes one or more flexible fingers.

Abstract: A drain rod system for connecting at least two rods together and/or to a peripheral device, said rods and/or devices connected or coupled together by one or more connection means which including a first male portion at least part of which includes a non-circular member and a second female portion at least part of which is configured to receive at least part of the non-circular member extending from an adjacent male portion. The connection means further including first and second threaded engagement members, said first threaded member including a thread or threaded portion and at least part of the second threaded member adapted to receive at least part of the thread or threaded portion, wherein at least one or both of said threaded members includes a grip portion to enable the user to engage or disengage the male and female portions and/or the first and second threaded members by hand.

Abstract: A longitudinal channel with increased holding strength, configured for use as an anchoring element for an anchor used in supporting objects on a substrate and a method for the production thereof and an anchor. The channel has a generally U-shaped axial cross section in at least a portion thereof with, the U-shaped cross section being comprised of longitudinal side walls and a longitudinal base connection between the side walls. The side walls have free edges configured for holding contact with the substrate. A portion of the free edges of the channel are covered with a planar continuous surface material which is co-extensive with non-covered free edges whereby the planar continuous surface material and the free edges provide a planar holding surface with greater surface area than that of the free edges alone for the increased holding strength.

Abstract: A more robust attachment member or pin is provided for use with farm implements that are attached to a farm vehicle by a quick hitch adapter. The attachment member includes an elongated member having a length and extending between a first end and a second end; and at least three surfaces extending longitudinally along a substantial portion of the elongated member between the first and second ends, the at least three surfaces having at least two different radii. Two of the surfaces are either generally flat or have a very large radius. Two other surfaces, disposed between the generally flat surfaces, have a smaller radius and the two other surfaces may have the same or different radii.

Abstract: A joined structure includes a first component, a second component, and an insert. The first component is formed of a fiber-reinforced material and has a hole defining an axis. The second component is adjacent the first component and has a hole aligned with the hole of the first component. The insert is positioned in the hole of the first component. The insert includes an inner layer having a tubular shape about the axis, a middle layer concentrically adjacent to the inner layer about the axis, and an outer layer concentrically adjacent to the middle layer about the axis. The layers are formed of fiber-reinforced materials. One of a boundary between the inner and middle layers and a boundary between the middle and outer layers has a nonlinear profile in a direction parallel to the axis.

Abstract: A fastening arrangement (50) with a clip body (10), a fastening device (14) and a panel (18) is provided, with the clip body (10) having a retainer (12) for the fastening device (14), the clip body (10) being fastenable to the panel (18) provided with at least one fastening opening (16), the panel having a positioning opening (80) in addition to the fastening opening so that the clip body (10) can be positioned on the panel (18) by a stop of at least one positioning element (20) on an edge (22) of the positioning opening (80). The positioning opening (80) has a size which allows the clip body (10) with the fastening device (14) held thereon to be passed at least partially therethrough, the positioning element (20) bearing at least partially against the edge (22) of the positioning opening (80) and the positioning element (20) at the same time being or being connected to a locking element which makes contact with the panel on a side facing away from the retainer (12).

Abstract: A hybrid metal plastic shear fastener bolt. The bolt includes a metal body having a first end and an opposing second end including a head and including a threaded shaft extending from the first end towards the second end along a longitudinal bolt axis. The bolt also includes a plastic torque head formed on the metal body configured to shear away from the metal body at a predetermined torque.

Abstract: A high-strength screw (1) includes a head (2) and a threaded portion (5) including a thread (6) and a thread end (9) facing away from the head (2) in an axial direction. The threaded portion (5) includes an unhardened portion (12) starting at the thread end (9) and extending in an axial direction. The unhardened portion (12) has a hardness being reduced compared to an axial middle portion (11) of the threaded portion (5).

Abstract: A cage nut including a nut arranged in a cage. The cage has a base which has a round hole from which two opposing side parts ascend, each side part carrying a supporting portion facing outward. The cage and the nut have diametrically opposed projections which are shaped in such a way that, in a determined rotational position, when the nut is arranged in the cage it can be partially inserted axially into a non-round, preferably square opening in a thin wall, if necessary after compressing the side parts, whereupon the screw can be screwed into the nut.

Abstract: A threaded fastener (10) useful for fastening soft materials over an extended period of time includes a washer (16) having outwardly extending arms (46) received in axially extending channels (52) in an object (60) to be fastened, and a bolt (12) extending through the washer, the bolt having a head including a projection (26) engaging a locking feature (38,40) on the washer to resist relative rotation between the washer and the bolt in a fastened assembly.

Abstract: A thread connection is provided between a filter cartridge and its base, as well as to a filter cartridge comprising such a thread. The thread has a reversed load flank.

Abstract: A locking carabiner includes a body having a first end and a second end. A gate rotatably coupled to the second end about a gate axis, and a locking mechanism rotatably coupled to the gate about a locking mechanism axis. The locking member is configured to engage with the first end, and the gate axis is substantially parallel to, and offset from, the locking mechanism axis. Additionally, the rotation of the locking mechanism is in a substantially similar plane as the rotation of the gate.

Abstract: To provide a cable joint including a joint piece which has an good sliding property and is hardly broken. The cable joint includes a joint case 10 and a joint piece 50. The joint piece 50 is provided with a locking part of a cable end and a cable lead-out groove 56. A joint case side main sliding surface 21a is formed flat, and a protrusion part 61 is provided on a joint piece side main sliding surface 60. The protrusion part protrudes toward the main sliding surfaces 60, 21a in a direction orthogonal to the main sliding surfaces. An apex part 61a of the protrusion part is located at a position corresponding to the cable lead-out groove 56 in the direction orthogonal to the main sliding surfaces.

Abstract: In various aspects, a lightweight connecting rod for an internal combustion engine is provided. The lightweight connecting rod has one or more of: hollow regions, lattice regions, or weight reduction apertures. The connecting rod may be made via an additive manufacturing process. The connecting rod includes a first end, a second end, and an arm. The first end is configured to be pivotally connected to a piston. The second end is configured to be pivotally connected to a crankshaft. The arm extends between the first end and the second end. The arm includes a peripheral wall. The peripheral wall has an outer surface, an inner surface, and an interior region. The interior region is defined be the inner surface. The interior region includes at least one void space. The void space is a lattice structure or a hollow region.

Abstract: An improved mechanical joint that remains together under combined vertical, angular and torsional loads, provides vibrational isolation to the stresses experienced and transmitted by any connected members, offers increased angular movement at the joint, and will allow torsional movement. It has its primary use in the automotive industry to connect the control arms to the steering knuckles of an automobile, although they have a plethora of other mechanical applications such as in the movable joints of dolls.