Abstract: An injection device for delivering a medicament to the human or animal body. The injection device comprising a housing, a piston rod for driving a bung of a medicament container, a drive mechanism including a motor for providing an output drive to the piston rod for delivering the medicament; and controller for controlling operation of the device.

Abstract: A hydraulic pressure supply system may generate low hydraulic pressure and high hydraulic pressure using oil stored in an oil pan and may supply the low hydraulic pressure and the high hydraulic pressure respectively to a low pressure portion and a high pressure portion in which the hydraulic pressure supply system may include: a low-pressure hydraulic pump; a first switch valve; a low-pressure regulator valve controlling the hydraulic pressure supplied from the first switch valve and supplying the hydraulic pressure to the low pressure portion; a high-pressure hydraulic pump discharging the raised hydraulic pressure to a high-pressure line; a second switch valve disposed between the first low-pressure line and the high-pressure line, a high-pressure regulator valve controlling the hydraulic pressure supplied from the high-pressure hydraulic pump and supplying the stable high hydraulic pressure to the high pressure portion; a bypass line bypassing the first switch valve.

Abstract: Disclosed herein is a compressor in which oil retained in a hermetic case may be raised through an inner circumferential surface of a rotating shaft. The rotating shaft is provided with a hollow portion, and a fixation shaft with a spiral wing is inserted into the hollow portion to raise oil. Also, a spiral groove is formed on an outer circumferential surface of the rotating shaft to cause the raised oil to descend and lubricate the outer circumferential surface of the rotating shaft, and the hollow portion and the spiral groove are connected to each other via a guide passage.

Abstract: A differential pressure valve is disclosed, comprising: a valve body, the valve body having at least one flow inlet and one flow outlet; at least one shutter, the shutter being movable between an open position and a closed position under a differential pressure across the valve; a flow passage from the flow inlet to the flow outlet; at least one biasing member configured to bias the shutter towards a closed position so as to block the flow passage through the flow inlet. The biasing member comprises at least two springs arranged in parallel, one of the springs having at least one resonance frequency different from at least one resonance frequency of the other of the two springs.

Abstract: Systems and methods relating to filtration in a pump are described. Even more particularly, systems and methods relate to optimizing operating routines of a pump based on the filter used with the pump. A system controlling a pump can receive filter information and process fluid information and select a priming routine for the filter based on the filter information and process fluid information. The pump can be operated according to the selected priming routine that includes a back pressure step to pressurize the filter from downstream. Systems and methods relating to filtration in a pump are described. Even more particularly, systems and methods relate to optimizing operating routines of a pump based on the filter used with the pump. A system controlling a pump can receive filter information and process fluid information and select a priming routine for the filter based on the filter information and process fluid information.

Abstract: A fluid cylinder block includes a body having a plurality of bores formed therein that intersect at a junction, and a stress distributing joint comprising a groove formed in the body adjacent opposing bores of the plurality of bores on each side of the junction, wherein the grooves include a major dimension that is greater than a diameter of the opposing bores.

Abstract: A supply pump includes a housing, a tappet, a guide groove, and a stopper pin. The housing includes a cylindrical sliding wall. The tappet is configured to be reciprocated along the sliding wall. The guide groove is provided for one of the housing and the tappet. One end of the guide groove includes a tapered surface. The stopper pin is provided for the other one of the housing and the tappet. The stopper pin is fitted into the guide groove to stop rotation of the tappet relative to the housing. When the tappet is displaced abnormally in an upper direction, the tapered surface is pressed on an end of the stopper pin to be engaged with the stopper pin.

Abstract: The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.

Abstract: A rotary machine includes a rotary shaft having two driving reactive force receiving parts that are displaced in an axial direction and are applied with diametrical reactive forces having different rotation phases from driving targets as normal loads; and bearings that rotatably support the rotary shaft wherein the rotary shaft is rotated at a state where the rotary shaft is supported by the bearings to drive the driving targets via the driving reactive force receiving parts, wherein the bearings are respectively provided at both axial sides of one of the two driving reactive force receiving parts, which receives a higher normal load, and wherein a leading end side of the rotary shaft more than the other of the two driving reactive force receiving part, which receive a lower normal load lower than the higher normal load, is configured as a free end.

Abstract: A rotary device includes a housing having a tubular surface. The surface has an throughpassing axis and first and second ports. A rotor body rotates about the axis and has a plurality of slots extending generally radially from the axis. A vane is mounted in each slot for reciprocation such that the surface can be swept by the vanes as the body rotates. A seal permits fluid to flow into and out of the device substantially only via the first and second ports such that the vanes create chambers which decrease in volume when in communication with the first port and increase in volume when in communication with the second port. The tubular surface is oval in cross-section.

Abstract: A multi-stage vane-type positive displacement pump used for lifting fluid from oil wells has stages disposed on a common shaft. Each stage has a rotor, a stator, separating vanes, working chambers, a lower cap with inlet ports, and an upper cap with outlet ports. The rotor is in the form of a cam. The stator is formed from two concentric sleeves situated on a base and having an annular gap therebetween. Slots are provided in the inner sleeve and in the base for the movement of the vanes. The vanes are connected to one another by a synchronizing element. The ports are situated opposite the chambers, either side of the vanes. The end faces of the caps of adjacent stages are conjoined to form an annular cavity, which communicates with the gap of the preceding stage. The aim is to increase the reliability of the pump, to simplify the design and to reduce the manufacturing cost thereof while enabling the pumping of fluids with a high content of abrasive particles.

Abstract: The present invention is a scroll pump comprising two intermeshing scrolls arranged so that on relative orbital movement of the scrolls gas is pumped from an inlet to an outlet. The scrolls have a plurality of successive scroll wraps I, II, II, IV, V, VI between the inlet and the outlet. There is a single-start condition in which fluid is pumped from the inlet to the outlet along a single flow path extending through each of the scroll wraps in succession and a multi-start condition in which fluid is pumped from the inlet along a plurality of flow paths which extend in parallel through radially adjacent scroll wraps and converge to a single flow path prior to the outlet. A valve arrangement is operable for switching the scroll pump between the single-start and the multi-start conditions.

Abstract: A scroll compressor (10) comprising a scroll pumping mechanism having two co-operating scrolls (14,16) mounted within a pump housing (18) so that on relative orbital movement of the scrolls fluid is pumped from a pump inlet (20) in the pump housing to a pump outlet (22) in the pump housing. The scroll compressor (10) further comprises a filter (24) located within the pump housing (18) along a fluid flow path (26) between the pump inlet (20) and the scroll pumping mechanism (12) for resisting the passage of particulates (28) upstream of the compressor.

Abstract: An upper back pressure type scroll compressor is provided having a back pressure chamber. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the first scroll. The scroll compressor may also include a back pressure plate coupled to the second scroll. The back pressure plate may include a cavity with which the intermediate pressure chamber of the second scroll communicates. The scroll compressor may further include a floating plate movably coupled to the back pressure plate so as to seal an upper portion of the cavity.

Abstract: The present invention relates to a scroll pump with two scrolls that are co-operable for pumping fluid from an inlet to an outlet on relative orbiting motion of the scrolls. Each scroll comprises a scroll base from which a scroll wall extends generally axially towards the base of the opposing scroll. A gas conduit having an inlet at a first location of the pumping channel and an outlet at a second location of the pumping channel allows over-compression at the first location of the pumping channel to be exhausted to the second location of the pumping channel. A one-way valve located in the gas conduit allows the passage of gas through the conduit from the conduit inlet to the conduit outlet when a predetermined pressure differential between the first and second locations of the pumping channel is generated during roughing when the scroll inlet is at or close to atmosphere.

Abstract: A vortex prevention device is capable of preventing creation of air entrained vortex and also provides a double suction vertical pump having such a vortex prevention device. The vortex prevention device is used in combination with the double suction vertical pump which is installed in an open channel and has an upper suction opening and a lower suction opening. The vortex prevention device includes a plate member as a vortex prevention structure arranged above the upper suction opening. The plate member is arranged away from the upper suction opening such that a passage is formed between the plate member and the upper suction opening.

Abstract: A pump (1) includes a shaft (21) for driving an impeller (81) in a pump chamber (80); an electrical motor chamber (60) extending essentially circumferentially around a motor section of the shaft (21); a cooling circuit chamber (30) for being filled with a cooling liquid; and a mechanical seal chamber (40) extending essentially circumferentially around a seal section of the shaft (21), with the mechanical seal chamber (40) adapted for being filled with oil. The pump (1) may be a submersible pump.

Abstract: A fluid working apparatus (100) having an inlet side and an outlet side with the at least one rotor (114) having a plurality of blades (115) positioned in the housing. A circumferential inlet area is defined on the inlet side of the rotor (114) and a circumferential outlet area is defined on the outlet side of the rotor (116). At least one return assembly (140, 142) is configured to return fluid flow from the outlet side of the rotor (114) to a circumferentially offset portion of the circumferential inlet area on the inlet side of the rotor (114) whereby a working fluid workingly engages a second subset of the rotor blades (115) before exiting the housing outlet (133). A method of working a fluid is also provided.

Abstract: A shaft seal device includes: a rotary shaft; a seal member that is arranged on an outer periphery of the rotary shaft; a liquid chamber; and a seal member accommodation chamber that accommodates the seal member therein, wherein the liquid chamber and the seal member accommodation chamber is separated by a partition wall, wherein the rotary shaft passes through a shaft hole formed in the partition wall and an outer periphery of the rotary shaft is sealed by the seal member, wherein the partition wall is formed with a through-hole penetrating the partition wall, a hollow member is mounted in the through-hole, a protrusion part of the hollow member protrudes toward the seal member accommodation chamber to engage with the seal member, and wherein the liquid chamber and the seal member accommodation chamber communicate with each other through a hole of the hollow member.

Abstract: A method of manufacturing a material for a rotary machine component, by performing at least a solution treatment on a material made of a duplex stainless steel, wherein, in the solution treatment, the material is heated to a temperature in a range of 950 to 1100° C. and is thereafter cooled to 700° C. at an average cooling rate of equal to or greater than 20° C./min.

Abstract: An exhaust gas diffuser for a gas turbine is provided. The diffuser has an annular outer wall for guiding the diffuser flow and in which an annular guiding element is arranged concentrically to the outer wall and influences the diffuser flow. The guiding element has a surface which is radially directed inwards and has a circumferential contour that is convex in the longitudinal section to form a displacement element. The guiding element is axially displaceable between two positions so that the guiding element, when in a first position, allows a flow between the guiding element and outer wall and, when in a second position, largely prohibits a flow between the guiding element and outer wall. The aerodynamic effect of the diffuser is improved and simultaneously optimal adapted for a plurality of operational gas turbine states.

Abstract: A flow device having a cooling-air injection system for injecting cooling air into cavities (20, 24) between sealing elements (14a, 14b) or sealing bodies (16a, 16b), respectively, on the side of the guide vanes and on the side of the rotor is disclosed.

Abstract: A pneumatic actuator includes a housing defining a chamber. A diaphragm is positioned within the chamber. A rod member is attached to the diaphragm and is movable between a first position and a second position. A cam member is attached to the diaphragm and to the rod member. The cam member has a cam surface. A deflection rod has a first end portion and a second end portion, where the first end portion of the deflection rod is attached to the housing. A follower is attached to the second end portion of the deflection rod. The follower engages the cam surface of the cam member so as to urge the rod member towards the second position.

Abstract: An actuator is equipped with a moveable part 160 that moves according to changes in an intake amount of air, a cylinder 140 that contains air and pumps the air through a fluid pipe 150 to the moveable part 160 according to pressure applied to the air, and a piston 130 that applies pressure to the air in the cylinder 140. Further, the actuator is equipped with a motor 100 that generates rotational force, and a screw 110 and a slide nut 120 that convert the rotational force to a force to move the piston 130. The air is enclosed in the moveable part 160, the cylinder 140 and the fluid pipe 150.

Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

Abstract: A folding table that includes a base with two pedestal assemblies having base frames pivotally connected to each other is provided. One base frame is attached to a table top and both base frames are connected by a linkage assembly. A gas cylinder assembly is connected to the linkage assembly. A latch assembly attached to the bottom surface of the table top engages with a stop member on the base frame that is not attached to the table top. A latch assembly for a folding table and methods of operating the folding table are also provided.

Abstract: A method and apparatus is provided for adjusting a latch. An apparatus comprises a latch body, a first member, and a second member associated with the latch body. A receiving area extends through at least a portion of the latch body. The first member is configured to be at least partially received within the receiving area of the latch body. The first member has a first coupling element. The second member has a second coupling element. Movement of the first member along an axis through the receiving area changes a distance between the first coupling element and the second coupling element.

Abstract: The present disclosure provides a decking system including a receiver and deck plank, wherein the plank removeably connects to receiver for installation. For example, the receiver may provide a snap lock function that secures and automatically spaces the deck planks on the receiver, which is fastened to a deck joist. In addition, the system is designed to conceal fasteners used to attach the system to the deck joist.

Abstract: The present invention comprises a jointing head 1, a robot with this jointing head 1, and a fastening method for affixing fastening elements 9 to a component surface B. The jointing head 1 comprises a gripper 30 that removes fastening elements 9 from a removal position E of a cartridge 70 by means of a pivoting movement. In addition, the jointing head 1 comprises a compensation mechanism 40 of the gripper 30 so that, when the fastening element 9 is mounted on a component surface B, the fastening element 9 is optimally arranged adjacent to a hardening source 60 such as a light source.

Abstract: A bracket for securing a structural member, which can be used in the assembly of modular furniture. The bracket includes a main bracket body and a first cantilever having a first length extending longitudinally from the main bracket body and a second cantilever having a second length that is shorter that the first length of the first cantilever, extending longitudinally from the main bracket body and substantially parallel to the first cantilever. The first cantilever is separated from the second cantilever to form a first channel for receiving a first structural member. In an alternative embodiment, a stabilizing member that is detached from the main bracket body may be substituted for the second cantilever to form the bracket.

Abstract: An elastic mating assembly includes a first component comprising a substantially rigid material and an aperture defined by an aperture wall. The assembly also includes an elastically deformable second component having a cutout portion. The elastically deformable second component also includes a second component outer wall removably engaged with the aperture wall, wherein the second component is disposed substantially within the aperture. The elastic mating assembly further includes a third component removably engaged with the cutout portion of the elastically deformable second component, wherein the elastically deformable second component is configured to elastically deform proximate the cutout portion upon contact with an outer surface of the third component.

Abstract: The invention relates to a quick-release fastener (100) of the ball-pin type, consisting of a tubular body (102) provided with a radial opening (108), an enlarged head (104), a rod (112) that can move axially within the body and through the head, a ball (110) capable of moving radially between a released position in which it rests in a reduced cross-section (132) of the rod (112) inside the body and a locked position in which it protrudes radially beyond the body through the radial opening (108), and a lever (114) that pivots about a pin (118), which lever includes at least one cam surface (142) that is in contact with the head. The rotational actuation of the lever draws the rod toward the head and causes the ball to move into the released position.

Abstract: A low energy wood screw that may be inserted quickly and using less energy than conventional screws. In various embodiments, the screw may include a countersunk head having a recess for accommodating a driving tool, a tapered neck, a plurality of crown ribs extending over the head and neck, a lubricating coating, main threads with a large thread lead, and lower threads having an asymmetrical profile and extending onto a gimlet point.

Abstract: The invention relates to a self-tapping screw with a head and an outer thread support. The core cross-section of the outer thread support has the shape of a rounded n-sided polygon, n being a prime number>3.

Abstract: An anti-rotation duct restraint system and methods of using this system for connecting flexible ducts are described. The anti-rotation duct restraint system includes a flexible cable having a swaged cable end and a flattened threaded cable end, wherein the swaged cable end can be aligned with a though-hole in a first flange of a first flexible duct, and the flattened threaded cable end, along with a mating metal bushing, can be aligned with a through-hole in a second flange of a second flexible duct. The system also includes a nut, which can be threaded onto the flattened threaded cable end and secured using a single tool with one hand, for connecting the first flexible duct with the second flexible duct.

Abstract: A method for the attachment of a bolt element to a component is described. The bolt element has a head part having a contact surface and a shaft part extending away from the head part, the shaft part having a tip provided at its end remote from the head part, the tip merging into a thread cylinder, optionally via a cylindrical region. The bolt element is pressed with the tip to the fore against the component and the tip is pressed through the component until the side of the component adjacent the head part of the bolt element enters to contact the thread cylinder and the tip thereby generates a hole in the component. The bolt element is subsequently turned so that the thread of the thread cylinder forms an internal thread in the wall of the hole. A bolt element is also claimed.

Abstract: A fixed or adjustable chain guide includes a captured shoulder bolt fastener. An adjustable chain guide such as a chain tensioner arm assembly includes a tensioner arm with a pivot bore defined about a pivot axis. The pivot bore includes an inner end opening through a rear face of the tensioner arm and an outer end opening through a front face of the tensioner arm. The tensioner arm further includes at least one resilient fastener retaining tab located adjacent the pivot bore. The shoulder bolt extends through the pivot bore and is engaged by the at least one resilient fastener retaining tab, and the at least one fastener retaining tab inhibits separation of the fastener from the tensioner arm. The fastener preferably includes an annular groove or other recess to be engaged by the one or more fastener retaining tabs in order to permit the tensioner arm to rotate relative to the fastener.

Abstract: A fastener system that when assembled prevents the assembly from accidently falling out of the housing. The fastener system includes a reduced shank bolt, a bushing with internal threads and a snap ring relief, a snap ring, and a housing modified to receive the bushing and the snap ring. The flange may have a flange relief to seat the snap ring when the fully engaged.

Abstract: A coupling spacer includes a spacer body defining a first edge and a second edge opposite the first edge. The spacer body has a tapered shape. Further, the coupling spacer includes a spacer flange extending outwardly from the spacer body. The spacer flange is closer to the first edge than the second edge. The coupling spacer additionally includes at least one snap feature extending outwardly from the spacer body. The snap feature is closer to the second edge than the first edge.

Abstract: A microphone stand is provided that includes a dual mic frame that carries a first microphone and a second microphone.

Abstract: A bearing assembly for a drilling tool. A radial bearing assembly for use in a drilling tool may include a bushing having a generally cylindrical body with an inner surface. The radial bearing assembly may also include a sleeve configured to couple to a rotatable shaft of the drilling tool and configured to rotate within the bushing. The sleeve has (i) a plurality of spiral projections extending laterally in a direction away from a longitudinal axis of the radial bearing assembly and (ii) a plurality of flow paths, where a flow path of the plurality of flow paths is defined between a pair of adjacent spiral projections.

Abstract: Bearing assemblies, apparatuses, and motor assemblies using the same are disclosed. In an embodiment, a bearing assembly may include a plurality of superhard bearing elements distributed circumferentially about an axis. Each of the superhard bearing elements may include a bearing surface. At least one of the plurality of superhard bearing elements may include at least one texture feature that may be formed in a lateral surface thereof. The bearing assembly may also include a support ring that carries the superhard bearing elements.

Abstract: A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier. A first plurality of roller bodies is disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies is disposed between the at least one outer ring and the second inner ring. A pin extends through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, and the pin maintains a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring.

Abstract: A method for suppressing vibrations, the method having the steps of providing a first device having a first rotating shaft, and a second device having a second rotating shaft. The orbits of the first rotating shaft are measured are analyzed, and the misalignment and unbalance is determined. The first rotating shaft and the bearings are then displaced to eliminate vibrations.

Abstract: A bearing unit for a fluid machinery application having a double-row bearing, the double-row bearing comprising: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating and rotatably support a shaft; each angular self-aligning contact bearing having a respective set of rolling elements formed of rollers arranged in a row and interposed between an associated curved inner raceway and a curved outer raceway. Each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface engaging with the curved inner and outer raceways. Each roller is inclined in relation to the axial direction of the shaft by a respective first or second contact angle. The rollers are arranged to cooperate with the associated curved inner and raceways for supporting an axial force and a radial force. Examples of fluid machinery applications include: wind turbine, water turbine or propulsion turbine arrangements.

Abstract: A linear actuator includes a slide, a first half return member, a second half return member and a slide block. The first and second half return members are hollow frames and sleeved onto the rail. A circulation path can be formed when the first and second half return members and the slide block are assembled together, the second half return member is directly disposed in the first radial gap of the first half return member, and the slide block is directly disposed in the second radial gap of the second half return member. Furthermore, there is no level difference in the first and second return grooves of the two half return members, which will prevent noise caused during movement of the rolling elements, reduce impact of the rolling elements against the circulation path, and therefore extending the life of the linear actuator.

Abstract: Slide bearings and methods of producing slide bearings are disclosed. The slide bearing has a metal support, an adhesive layer and a sliding layer. The adhesive layer is applied directly to the metal support. The adhesive layer comprises a blend of at least two fluoropolymers P1 and P2, wherein P1 is selected from perfluoroalkoxyethylene (PFA) or tetrafluoroethylene-hexafluoropropylene (FEP). P2 is different from P1 and can be a fluoropolymer.

Abstract: A method of manufacturing a composite material bearing component includes designing a pattern of a fabric combination including a PTFE film, a quartz fabric and a glass fabric, which are stacked, in consideration of a final shape of a bearing, and stacking the fabric combination on a fusion surface which is a steel surface of a bearing structure of a composite material bearing; and simultaneously performing molding and fusing under conditions of a thermal treatment temperature of 300˜400° C. and a pressure of 30˜100 kgf/cm2, thereby manufacturing the composite material bearing. This composite material bearing functions as a self-lubricating high performance bearing, thus satisfying high performance requirements of the driving friction surface of a B&S (Ball & Socket) nozzle which is a thrust vector control nozzle and satisfying a high load and low friction efficient required of guided weapon components.

Abstract: A sliding member having a base and a coating on the surface of the base, the coating is formed of a mixed resin obtained by mixing a thermosetting resin and a thermoplastic resin. The mixed resin is a mixture of a thermosetting resin that is in a liquid state before mixing and a thermoplastic resin that is in the form of solid particles. By applying and heat-treating the mixed resin that is in a liquid state, a coating film formed on the surface of the base is a resin coating layer and dimples in the resin surface.

Abstract: A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and a cage. The cage includes: a large-diameter side annular portion and a small-diameter side annular portion that form wall portions in both axial ends of pockets; and a plurality of cage bars. A pressure difference reducing portion is provided which reduces the difference between a pressure in an inner region including a smallest bore diameter portion of an outer ring raceway surface of the outer ring and a pressure in an outer region including a boundary portion between an outer peripheral surface and an axially outer end surface of the small-diameter side annular portion of the cage.