Abstract: The present invention provides a scroll fluid machine comprising a fixed scroll unit 100, an orbiting scroll unit 200, a main frame 300 having three bearings 312, 322 and 332 disposed corresponding to the three bearings 221a, 221c and 221c of the orbiting scroll unit 200, a power transmission shaft 310 coupled to the bearing 221a of the orbiting scroll unit 200 and the main frame 300; and a pair of opposite rotation preventing shafts 320 and 330, further comprising a rolling support device 400 for the orbiting scroll unit comprised of a plate-shaped retainer cage 410 and a plurality of balls 420 made of a hard material and rollably accommodated in the accommodation holes 430 of the plate-shaped retainer cage 410 and disposed between the orbiting scroll unit 200 and the main frame 300, and a means for guiding rolling of the balls of the rolling support device 400, thereby decreasing the abrasion of the contact surface of the orbiting scroll unit with the rolling support device and the contact surface of the ma

Abstract: A hermetic compressor includes a casing, a cylinder coupled to an inside of the casing, the cylinder defining a compression space, a first bearing and a second bearing defining a compression space together with the cylinder, a roller located an eccentric position with respect to an inner surface of the cylinder and configured to vary a volume of the compression space, and a vane inserted into the roller to rotate together with the roller, and drawn out toward the inner circumferential surface of the cylinder when the roller rotates to divide the compression space into a plurality of compression chambers. An inlet port in communication with the compression space is defined in the first bearing or the second bearing, and a refrigerant suction pipe penetrating through the casing is inserted to be coupled to the inlet port.

Abstract: Disclosed herein is a motor-driven compressor with an inverter that is connected with an external power source via a connector part and controls a driving part which drives a compressing part to compress fluid. A printed circuit board is provided between the connector part and the driving part. Thus, noise transmitted from the driving part to the connector part is reduced, so that it is possible to minimize the transmission of the noise to an external power source.

Abstract: An inlet valve for regulating the pressure at the inlet channel of a vacuum pump comprising: a first chamber defined by a housing having at least one inlet channel connected to a first supply of a fluid, comprising a movable element defining two cavities fluidly sealed from each-other and means for exerting a force on the movable element; a second chamber separated from the first chamber by a wall and defined by a housing, being in direct communication with a process channel of a second supply of a fluid; a valve body slidably mounted in the wall to prevent a fluid flow between the second chamber and the second cavity of the first chamber, the valve body having a distal end and a proximal end, wherein the valve body comprises a fluid channel extending through the valve body allowing a fluid flow between the first cavity and the inlet channel.

Abstract: A pump apparatus and a pump apparatus monitoring system are disclosed. The pump apparatus monitoring system includes a cloud server, a remote electronic device, a near end electronic device and a pump apparatus. The pump apparatus includes a control module and at least one parameter sensor. The parameter sensor is for sensing at least one parameter of the pump apparatus. The control module transmits the at least one parameter to the near end electronic device. The near end electronic device uploads the at least one parameter to the cloud server via a network. The remote electronic device downloads the at least one parameter from the cloud server via the network. Accordingly, staff at the remote end is able to get parameters of the pump apparatus by the remote electronic device, so as to adjust the pump apparatus.

Abstract: A rotary compressor includes: a shell defining an internal space; a driving motor arranged in the internal space of the shell; and a compression mechanism unit to receive power of the driving motor and compress refrigerant, wherein the compression mechanism unit includes: a cylinder defining a chamber in which the refrigerant is compressed; a rotary shaft connected to the driving motor; a roller located in the chamber and connected to the rotary shaft to compress the refrigerant in the chamber while being rotated; a bearing coupled to the cylinder and having a discharge port through which the refrigerant compressed in the chamber passes; a muffler coupled to the bearing and into which the refrigerant passing through the discharge port is introduced; and a noise reducing unit fixed to the muffler to define a noise reducing chamber together with the muffler.

Abstract: The invention is directed to a graspable human propulsion device comprising a primary pole, a lateral pole affixed to the fore end of the primary pole, and a ducted fan assembly affixed to one end the primary pole and configured to accelerate airflow along the longitudinal axis of the primary pole. A user wields the graspable human propulsion device by grasping the primary pole with a first hand and the lateral pole with a second hand. The graspable human propulsion device acts to propel the user along the direction in which the longitudinal axis of the primary pole is pointed. This device is intended to be utilized by a user mounted on a personal transportation apparatus, such as a skateboard. In one embodiment the user controls the amount of thrust by use of a throttle lever mechanism. In another embodiment the user controls the direction and amount of thrust by use of a knobbed slide potentiometer.

Abstract: The present invention relates to a turbo air blower having waterproof and damp-proof functions. The turbo air blower has a waterproof structure so as to be installed outdoor, thereby obviating the need to add a pressure-feeding line and manufacture an air blower room which are required for conventional indoor installation. Further, the turbo air blower has a reliable damp-proof function by installing various dehumidifying parts therein, thereby being capable of preventing a device from being corroded by humidity and dampness as well as providing dehumidified pressure-fed air.

Abstract: A fan motor for a vacuum cleaner includes a motor mount defining a cooling flow path inlet, an impeller, an impeller cover defining an air inlet, an air discharge opening defined at the motor mount and configured to discharge air to an outer space of the motor mount, and a cooling flow path outlet defined vertically above the motor mount. The cooling flow path inlet is configured to introduce air from the outer space of the motor mount into an inner space of the motor mount to cool the motor part, and the cooling flow path outlet is configured to discharge air from the inner space of the motor mount toward a space that is defined between the impeller and the air discharge opening based on the space between the impeller and the air discharge opening having a lower pressure than the inner space of the motor mount.

Abstract: The purpose of the present invention is to improve the mechanical strength of a boss in correspondence with the direction in which the principal stress is generated in an impeller formed of fiber-reinforced resin. A hub 11 is provided with a first region ? arranged on the back surface 11b side, and a second region ? arranged on the front surface 11a side. In the first region ? the frequency with which the reinforcement fibers F dispersed at the periphery of a boss hole 12 are oriented inclined with respect to the radial direction of the hub 11 is high, and in the second region the frequency with which the reinforcement fibers dispersed at the periphery of the boss hole are oriented along the rotational axis line is high.

Abstract: The turbomachine comprises a stationary casing with a rotating member configured to rotate about a rotation axis in the stationary casing. The turbomachine further includes a rotating balance drum, arranged for co-rotation with the rotating member. A stationary sleeve is arranged in a fixed relationship with the stationary casing and surrounds the balance drum. The stationary sleeve comprises a plurality of consecutively arranged sleeve sections. A fluid channel is defined by an outer surface of the balance drum and an inner surface of the stationary sleeve. Between at least one pair of sequentially arranged upstream sleeve section and downstream sleeve section an annular chamber is provided, fluidly coupled to the fluid channel. Shunt holes are arranged on the upstream sleeve section, each shunt hole having a shunt hole inlet on an inner surface of the upstream sleeve section, and a shunt hole outlet in the annular chamber.

Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool. The LP spool has an LP shaft for transferring a torque from an LP turbine to an LP compressor. The HP spool has an HP shaft for transferring a torque from an HP turbine to an HP compressor. The LP shaft is coaxially mounted inside the HP shaft. An inter-shaft bearing is mounted radially between the LP shaft and the HP shaft. The inter-shaft bearing is disposed axially between the HP compressor and the LP compressor.

Abstract: A pump for circulating water includes an upper housing formed with an inlet and an outlet of fluid; a lower housing installed to fit in a lower side of the upper housing, having a receiving space formed therein; an inner housing having an edge part interposed between the upper housing and the lower housing, an impeller receiving groove formed therein, and a shaft support part formed at the center of the bottom of the impeller receiving groove; an impeller received in the impeller receiving groove to be rotatably installed, so as to form a flow pathway between the impeller and an inner surface of the inner housing for the flow of fluid; a rotor installed inside the impeller; and a stator installed in the lower housing to be positioned to face the rotator.

Abstract: The invention relates to a fan, in particular for an aircraft cooling unit, comprising a wheel (128) and a shaft line (136) for driving the wheel about an axis (A), said wheel including a hub (138) supporting an annular row of blades (140), and means (142) for connection to said shaft line that are housed inside said hub. The fan is characterized in that the connection means include at least one meltable safety element (158) designed to be broken and to rotationally disengage at least a portion of the connection means from the shaft line when a torque for driving the wheel that is transmitted by the shaft line exceeds a specific threshold.

Abstract: Provided is a mounting structure, including: an impeller including: a main body portion having a through hole; a plurality of blades provided to an outer peripheral surface of the main body portion; and a boss portion, which is a part of the main body portion, and protrudes toward one end side of the shaft with respect to the plurality of blades; a small-diameter portion, which is a part of the shaft; a first large-diameter portion, which is a part of the shaft, is located on another end side of the shaft with respect to the small-diameter portion; and a small-inner-diameter portion of the through hole, which is formed on a radially inner side of the boss portion, and has an inner diameter smaller than an inner diameter of a part of the through hole which is opposed to the first large-diameter portion in a radial direction.

Abstract: A turbomachine impeller is disclosed, which includes: a hub having a rotation axis; a shroud; a plurality of blades between the hub and the shroud; and a plurality of flow vanes, each flow vane being defined between the hub, the shroud and neighboring blades, each flow vane having a flow vane inlet and a flow vane outlet. Each flow vane extends radially inwardly from the flow vane inlet towards a radially innermost flow vane section, and from the radially innermost flow vane section to a flow vane outlet.

Abstract: A fan includes a motor base, a bearing, an impeller, a stator and a magnetic element. The motor base has a bearing stand in a center portion thereof. The bearing is accommodated within the bearing stand. The impeller includes a metallic case, a hub, plural blades and a rotating shaft. The metallic case has a top wall and a sidewall. The hub is sheathed around the metallic case. The blades are disposed around an outer periphery of the hub. The rotating shaft is inserted into a central opening of the top wall and penetrated through the bearing stand, wherein no raised ring structure is formed in the top wall of the metallic case, and the rotating shaft and the metallic case are jointed together by a laser welding process. The magnetic element is disposed on an inner wall of the metallic case and aligned with the stator.

Abstract: An axial alignment structure for a fluid pressure pump (100) includes: a first housing made of a resin; and a second housing made of a resin, in which a housing is configured in a state where the first housing and the second housing are joined to each other by thermal welding at a welding position, and a pump rotor is accommodated in the housing, and the first housing and the second housing have an axial alignment mechanism that axially aligns the first housing and the second housing such that axes of the first and second housings coincide with each other at the time of joining of the first housing and the second housing to each other by the thermal welding.

Abstract: The present invention provides a rotary machine intake casing which, by using a simple configuration, makes it possible to reduce asymmetry between the flow speed of air flowing in a forward direction relative to the direction of rotation of a rotating shaft of a compressor and the flow speed of air flowing in the opposite direction.

Abstract: A fan having a housing including a front piece that is separable but connectable to a back piece is disclosed. The front piece has a first connecting edge and a downstream edge, and the back piece has a second connecting edge and an upstream edge. The second connecting edge is configured to be connected to the first connecting edge. The fan may include a handle, the handle having a first portion integral with the front piece and a second portion integral with the back piece, the first portion configured to be connected to the second portion. The fan may further include air guide ribs provided on an interior surface of the housing and/or a ramp that starts at a location downstream of the upstream edge of the housing and ends at the downstream edge of the housing.

Abstract: A blower includes an impeller, a motor that rotates the impeller, an electronic component that is disposed below a stator in an axial direction, and a circuit board that is disposed below a motor housing in the axial direction. The motor housing includes a motor housing inlet that has a cylindrical shape extending in the axial direction, that extends below a lower end of a blower housing in the axial direction and surrounds an outer side of the electronic component in a radial direction, that is formed below the lower end of the blower housing in the axial direction, and that allows an inner side and an outer side of the motor housing in the radial direction to communicate with each other.

Abstract: Bleed air system includes bleed port with annular bleed slot in a compressor inner casing surrounding flowpath circumscribing a centerline in compressor inner casing. Inner and outer slot walls bound bleed flow passage through the bleed slot. Annular array of arcuate shields radially inwardly bound the bleed flow passage downstream and aft of inner slot wall. Each shield includes integrally-formed axially forward retaining portion, downstream portion, and upstream portion therebetween. Clipping means clips retaining portion to aft facing radial wall of annular lip on inner slot wall. Clipping means may be arcuate or annular clip having forward annular portion attached to annular aft flange substantially perpendicular to the centerline and forward annular portion disposed in annular slot extending into inner slot wall. Forward annular portion and annular slot may be cylindrical or conical. Clip may include aft conical portion radially offset from forward conical portion and transition portion therebetween.

Abstract: A blower includes an impeller capable of rotating around a central axis extending in an up-down direction; a motor that rotates the impeller; a motor housing surrounding an outer side in a radial direction of the motor; and a thermally conductive member arranged in the motor housing. The motor includes a shaft arranged along the central axis, a rotor that is fixed to the shaft and that rotates together with the shaft, and a stator facing the rotor in the radial direction. The thermally conductive member includes a first contact portion that contacts the stator, and a second contact portion that contacts the motor housing.

Abstract: A fan impeller structure includes a main body having a central annular section, a connection section and a flow guide section. The central annular section has a through hole. The connection section has multiple connection members. Two ends of the connection members are respectively connected with the central annular section and the flow guide section. The flow guide section has a carrier annular body. Multiple fan blades are disposed on at least one side of the carrier annular body. The fan impeller structure is able to enhance the strength of the fan blades and lower the noise of the fan.

Abstract: A compressor impeller includes: a hub; and a blade group including a plurality of blades arranged along a circumferential direction on an outer peripheral surface of the hub, the blade group being configured such that hub-side ends of leading edges of the respective blades are aligned on the same circle. The plurality of blades include at least one first blade and at least one second blade having a different shape from the at least one first blade. When comparing a blade angle of a leading edge of the at least one first blade to a blade angle of a leading edge of the at least one second blade at the same position in a radial direction of the compressor impeller, the blade angle of the leading edge of the at least one first blade is different from the blade angle of the leading edge of the at least one second blade, at least in a partial range in the radial direction of the compressor impeller.

Abstract: An accumulator piston, in particular a piston for a pressure medium accumulator of a hydraulic unit of an electronically slip-controllable vehicle brake system, includes a cylindrical piston shaft, and a piston head covering the piston shaft. The piston head includes a circumferentially closed blind-hole-shaped recess having an opening. A cross section of the recess in a region of the opening has at least one smaller dimension than a cross section in a region of a base of the recess opposite the opening. The recess forms a mechanism configured to separate particles out from the pressure medium.

Abstract: This hydraulic oil tank, which is disposed inside a pod of a power generation system, stores hydraulic oil, wherein the hydraulic oil tank is provided with: a rubber bag for use during oil temperature increases, the rubber bag being attached to a tank wall surface from the inner side, having a first internal space communicated with the exterior through an opening passing through the wall surface, and partitioning the first internal space and the wall surface interior in an elastic manner; and a rubber bag for use during oil temperature decreases, the rubber bag being attached to the wall surface from the outer side, having a second internal space communicated with the wall surface interior through an opening passing through the wall surface, and partitioning the second internal space and the wall surface interior in an elastic manner.

Abstract: A pneumatic chamber 20 is configured to include a first pneumatic chamber 21 pressurizing a first piston 11 and a second pneumatic chamber 22 pressurizing a second piston 12. The first pneumatic chamber 21 and the second pneumatic chamber 22 communicate with each other through a communication hole 87 formed via the inside of a retaining bolt 17. The second pneumatic chamber 22 is formed in a hydraulic pressure generating unit 55 moving in a thrust direction in a cylinder 2 and is separable from the first pneumatic chamber 21. In addition, the communication hole 87 is also separated into a communication hole 87a and a communication hole 87b with the corresponding separation, a rod portion 50 of the first piston 11 is also separated into a rod portion 50a and a rod portion 50b, and the communication hole 87b and the rod portion 50b are formed to be movable along with the hydraulic pressure generating unit 55 in the thrust direction.

Abstract: A pneumatic chamber 20 is configured to include a first pneumatic chamber 21 pressurizing a first piston 11 and a second pneumatic chamber 22 pressurizing a second piston 12. The first pneumatic chamber 21 communicates with the second pneumatic chamber 22. The hydraulic pressure generating unit 55 is internally provided with a hydraulic chamber 30, and the hydraulic chamber 30 is configured to have a first hydraulic chamber 31 pressurized by the first pneumatic chamber 21 via the first piston 11 and a second hydraulic chamber 32 pressurized by the second pneumatic chamber 22 via the second piston 12. The hydraulic pressure generating unit 55 is movable in a thrust direction in a cylinder 2, and the second hydraulic chamber 32 has a function of fixing the moving hydraulic pressure generating unit 55 in the cylinder 2 by causing a thin portion 15 to be elastically deformed in a radial direction due to hydraulic pressure.

Abstract: Pump-controlled hydraulic circuits are more efficient than valve-controlled circuits, as they eliminate the energy losses due to flow throttling in valves and require less cooling effort. Presently existing pump-controlled solutions for single rod cylinders encounter an undesirable performance during certain operating conditions. Novel circuit designs employ use of different charge pressures on a pair of pilot-operated charging-control valves or different piston areas and/or spring constants on a shuttle-type charging control valve to shift a critical loading region in a load-force/actuator-velocity plane to a lower load force range, thereby reducing the undesired oscillations experienced in the response of the typical critical loading region.

Abstract: A hydraulic valve body, comprising two main lines for bringing pressurized hydraulic fluid into the body's channel system and further out of the channel system. The body further comprises at least two outlet fittings for conducting hydraulic fluid from the body's channel system to actuators and two respective inlet fittings for conducting hydraulic fluid from the actuators back into the channel system.

Abstract: A fluid pressure cylinder is equipped with a piston rod connected coaxially with a piston and which slides linearly in the interior of a body. A cutout recess having a predetermined length along an axial direction of the piston rod is formed on a side surface of the piston rod. A planar bearing is provided, which projects toward the cutout recess from an inner surface of the body, and includes a distal end surface that abuts on the same plane with a bottom surface of the cutout recess.

Abstract: An actuator in which the abrasion of a piston and a cylinder can be prevented and it is difficult for the smooth movement of the piston to be hindered is provided. The actuator includes a cylinder (51), a piston (52) that moves inside the cylinder (51) according to a supplied fluid pressure, and a detent mechanism (54) that fixes a position of the piston (52) until the fluid pressure exceeds a predetermined value. The detent mechanism (54) includes a first elastic member 54a and a second elastic member 54b which are arranged to face each other with an axis (a) of the piston (52) interposed therebetween and press the piston (52) so as to sandwich the piston (52) therebetween.

Abstract: An actuator capable of preventing a malfunction of the actuator due to iron powder contained in working fluid and the abrasion of a cylinder and a piston is provided. The actuator includes a cylinder (51) extending in a vertical direction and having an opening (51a), a piston (52) moving inside the cylinder (51), and a stroke sensor (53) that detects a position of the piston (52). The stroke sensor (53) includes a member to be detected (53b) which is a magnet, and a sensor (53c) which detects the member to be detected (53b). The member to be detected (53b) is located below a lower edge portion (51a1) of the opening (51a).

Abstract: A method of forming three-dimensional shaped microparticles in a microfluidic device includes flowing a mixture of a monomer and photoinitiator in a microfluidic channel having a plurality of pillars disposed therein to define a flow stream having a pre-defined shape and temporarily stopping the same. One or more portions of the flow stream are polymerized by passing polymerizing light through one or more masks and onto the flow stream, the polymerization process forming a plurality of three-dimensional shaped microparticles. The three-dimensional shape of the microparticle may be geometrically complex by using non-rectangular 2D orthogonal shapes for the flow and/or masked light source. The microparticles may include protected regions on which cells can be adhered to and protected from shear forces. The flow stream is restarted to flush out the newly formed microparticles and prepare the device for the next cycle of particle formation.

Abstract: My device is a Velcro strip that is 10 inches long and 1 inch wide, with a 6 inch Velcro strip attached to the top and bottom of 10 inch Velcro strip in a vertical centered position. The primary 10 inch Velcro strip has a magnetic device attached to the back of said 10 inch primary Velcro strip. The Velcro strip is attached to the metal arm of a golf cart by placing back of primary strip containing magnetic device against the metal bar on golf cart and wrapping the smaller 6 inch strips around the bar of the golf cart. My device once attached to the cart will allow a golfer to attach their golf glove(s) to the 10 inch primary velcro strip allowing air to pass through the glove as the cart moves keeping the glove(s) dryer and ready for use. It will also allow the glove to last longer by reducing the amount of sweat that resides in the glove and allows the glove to perform as intended due to being dryer with the use of air passing through the glove.

Abstract: According to an aspect, a clamping hub includes a body connected to a clamping collar via a neck, there the clamping collar extends outward from the body. The clamping hub also includes a central bore running through the body and the clamping collar and configured for receiving a shaft. The clamping collar is configured to substantially surround and clamp to the shaft. The clamping collar is divided into first and second collar segments along a chord of the central bore that is offset from the center of the central bore towards the first collar segment. The second collar segment is tapped for a clamping screw that passes through the first collar segment and threadedly engages the second collar segment.

Abstract: An apparatus for retaining and stabilizing an electronic device including base plate having an opening provided there through and adapted to accept adjustment post(s) extending through base plate opening and further extending from the base plate in the direction of an arc opening, a pair of retention wings mounted to the base plate, the retention wings bent at the free edges inward at an angle to form a retention arc with opening slightly overlapping opposing edges of the front surface of the retained electronic device, and one or more pressure interface members threaded onto the at least one threaded post, the one or more pressure interface members including at least one contact surface substantially overlaid with a material layer allowing compression deflection to maintain pressure with the rear surface a retained electronic device while allowing insertion and removal without readjustment of pressure contacts.

Abstract: A strap system is disclosed that has elongated primary and secondary straps, each having top and bottom sides, front and rear ends, and peripheral edges. The top side of the primary strap includes a first two-part mechanical fastener. The front end of the bottom side of the primary strap has a first part of a second two-part mechanical fastener, from which a stiffener extends forward. The bottom side of the secondary strap is fixed with the second object. The secondary strap also includes at the front end of the bottom side a second part of the second two-part mechanical fastener, and includes at the rear end a loop fixed about a rigid ring.

Abstract: A new mobile electronic device fixation clamp has a shell body, a control mechanism, a first clamp arm, a second clamp arm and a resetting mechanism; the control mechanism has a control block and a pulling plate; the control block is arranged on the shell body moveably and rotatably; the pulling plate is connected with the control block; the first clamp arm and the second clamp arm are arranged on the shell body slidably and are connected with two sides of the control block, respectively; the resetting mechanism triggers the pulling plate to reset. During use, the control block is pulled to rotate, thereby driving the first clamp arm and the second clamp arm to slide, and accordingly changing a distance between the first clamp arm and the second clamp arm and thus holding and fixing the mobile electronic device therebetween.

Abstract: A bushing primarily for use in high temperature applications. In preferred embodiments the bushing comprises a rounded body formed from a single piece of metal wherein the body has an “M” shaped cross-section with a first outer leg, second outer leg, first inner leg and second inner leg, and wherein the first outer leg and second outer leg are both concave arcs about a central axis and form an outer circumference of the rounded body and wherein the first inner leg and second inner leg each have an arc formed in the leg to create a rounded channel that extends a longitudinal length of the rounded body along the central axis; and wherein the first inner leg and second inner leg transition between each other in a third concave arc.

Abstract: A cabinet includes a plurality of cabinet panels coupled together to form a cabinet. At least two adjoining panels are joined together by a rail lock and cleat tab joining structure which includes a flange strip extending from an adjoining side edge of each of the at least two adjoining panels. A rail lock and cleat tab joining structure includes a rail lock having a plurality of taper locks. Each cleat tab of a first panel is substantially aligned with each cleat tab of a second panel to form a pair of aligned cleat tabs. The pair of aligned cleat tabs is captured together by an interference fit with tapered edges of each corresponding taper lock to form a seam joining the first panel to the second panel. A gun cabinet, a safety shelter or safe room, and a method for joining two adjacent panels is also described.

Abstract: A connection assembly adapted to join a surface element to an underlying support structure while maintaining a substantially zero gap abutting relation between the surface element and the support structure. The connection assembly includes a press-in retainer with a circumferential seal having a sealing foot. The sealing foot flexes about a living hinge while maintaining continuous sliding contact with the support panel without interfering with downward movement of the retainer.

Abstract: A device for the shock-absorbing attachment of two elements to be assembled, the attachment device including: an inner part that is tubular along an attachment axis; an outer part that is tubular along the attachment axis, and hollow, the inner part being accommodated in the outer part such that the outer surface of the inner part is facing the inner surface of the outer part; an elastomer layer between the outer part and the inner part, the elastomer layer, when seen in section in a longitudinal plane including the attachment axis, including: to either side of the attachment axis, at least three so-called longitudinal portions, and at least two so-called transverse portions.

Abstract: A connection arrangement, that connects a first component (2) to a second component (3), includes a screw (1) with a screw head (10) and a threaded shaft (11) which has an exterior thread (12). The first component includes a mating connection piece (20), which has a support surface (21) and a collar (23). A depression (22) encircles the collar (23) and is formed in the support surface (21). A protrusion (14) is arranged on a screw head lower face (13), facing the collar (23). The protrusion is operatively connected to the depression (22) in the support surface (21) of the mating connection piece (20) in an assembled state of the screw (1), with the interposition of the second component. A vehicle seat (100) includes the first component and the second component, fixed by the connection arrangement. A methods for producing the connection arrangement and for connecting the components are provided.

Abstract: A fastening structure is fastened to an object. The fastening structure includes a carbon fiber-reinforced resin, a metal collar and a fastener. The outer circumference of a metal collar has a tapered portion, which is inclined with respect to the central axis of the collar. The inner circumferential surface of a through hole in a carbon fiber-reinforced resin (“CFRP”) material has an abutting portion that contacts the tapered portion of the collar via an electrically insulating adhesive. The tilt angle of the tapered portion of the collar and of the abutting portion of the CFRP material are the same as the angle at which the displacement of the CFRP material in a direction perpendicular to the surface of the abutting portion due to thermal deformation resulting from temperature changes is balanced with the displacement of the collar in a direction perpendicular to the surface of the tapered portion.

Abstract: Disclosed is a component with a component section and a flange that is arranged at the component section for connection of the component another element. Arranged at the flange is one or a plurality of oblique flange channels, that is, channels for respectively accommodating a section of a connection element that runs obliquely to a surface portion of the component section that lies opposite to the flange. Further disclosed is a flange connection with at least one component of this kind, another component, and at least one connection element. Disclosed, in addition, is a turbomachine with a housing that is assembled from two or more components by means of such a flange connection.

Abstract: A semi-tubular self-piercing rivet having a rivet head and a rivet shaft, the shaft bore of which satisfies the following relationship in relation to the length of the semi-tubular self-piercing rivet: 0.4 ? T B L N ? 0.6 , the total length of the self-piercing rivet LN being ?4 mm. The disclosure further relates to a corresponding self-piercing rivet joint, to a method for producing the self-piercing rivet, and to a method for producing the self-piercing rivet joint.

Abstract: A quick connection and/or fastening system suited to mutually connect and disconnect a first and a second element is disclosed, the system including a first and a second component that are suited to be rigidly fixed to the first and second elements, respectively, the first component and the second component being also suited to be mutually connected and disconnected, the second component being suited to house an end portion of the first component in such a way as to allow its translation inside the second component, the second component comprising also counteracting elements suited to counteract the translation of the end portion of the first component towards the outside of the second component.

Abstract: A screw includes a shank and at least one thread. The shank includes a front section, a rear section spaced from the front section along a longitudinal axis of the shank, and an intermediate section between the front and rear sections. A head is formed at an upper end of the rear section. The intermediate section has circular cross sections, and the front section has roughly triangular cross sections. A plurality of separate raised teeth is provided on a circumference of the front section, and each of the plurality of raised teeth extends along the longitudinal axis of the shank. The thread is spirally formed on the shank and includes a plurality of thread convolutions. The screw can be quickly driven into workpieces to be combined without less combination between the screw and the workpieces.