Abstract: A method for performing simultaneous operations at a wellsite comprising two or more adjacent wellheads, each respectively connected to a well, may include the following steps: providing a fluid supply via upstream equipment to an intermediate supply point; fluidly connecting the intermediate supply point to a single wellhead, the fluidly connecting comprising connecting a first end of a flexible pipe to the intermediate supply point and a second end of the flexible pipe to a first wellhead; performing a wellbore operation on a first well using the fluid supply from the upstream equipment supplied to the first wellhead; disconnecting the second end of the flexible pipe from the first wellhead; and connecting the second end of the flexible pipe to a second wellhead.

Abstract: Carbon fiber winding equipment includes integrated spiral and hooping winding equipment for multi-bundle fibers. The equipment includes a spiral winding unit, a hoop winding unit, and a guide base and a supporting base for supporting the spiral winding unit and the hoop winding unit. An end face of a gear driving plate includes a continuous bulbous iris curve sliding rail, a sliding rod extends into the sliding rail and is capable of driving a yarn guide shaft tube to slide radially along with the rotation of the gear driving plate. A bevel gear is capable of driving the yarn guide shaft tube to do auto-rotation motion along with the rotation of a second transmission gear ring. A ratchet driving plate rotates to drive an electric telescopic rod to push a hoop rotation plate to rotate so as to drive a hoop winding bundling device to complete a hoop winding action.

Abstract: A method of analyzing the durability of a structure. Load-controlled testing is performed on samples of a composite material of the structure to relate critical strain invariants of the material to cyclic rates of strain invariant accumulation and frequencies associated with the cyclic rates. The material is characterized based on effective properties of the material, including the cyclic rates of strain invariant accumulation. Laminate properties and a geometrical definition of the structure are used to obtain a parametric model. Material characterizations are used to determine model element frequency responses to applied load conditions. Each element's frequency responses and critical strain invariants are used to determine whether damage is indicated at the element. Progression of damage is tracked and accounted for in the model.

Abstract: In an electric motor, an n-th layer of windings includes: a first winding portion wound from a radially outer side of the stator to a radially inner side of the stator so as to form a gap dimensioned to one pitch or more of the windings at a preset position; and a second winding portion wound from the radially inner side of the stator to the radially outer side of the stator in a continuous manner from the first winding portion so as to fill in the gap, the second winding portion crossing the first winding portion. The gap is formed at a position that is at an intermediate portion of the tooth in a stator radial direction and that is a position at which the windings switch from the n-th layer to an (n+1)th layer.

Abstract: According to an embodiment, a superconducting coil production device for producing a non-coplanar three-dimensional superconducting coil by winding a tape-like superconducting wire includes: a coil bobbin; a supply reel to supply the superconducting wire to the coil bobbin; and an adjustment driving unit to adjust a position of the supply reel relative to a wrapping point so that a position of the wrapping point of the coil bobbin around which the superconducting wire being supplied from the supply reel is wrapped becomes equal to a position of the supply reel in a rotational axis direction of the supply reel.

Abstract: Provided are an armature for rotary electric machine, an insulator therefor, and a coil winding device for winding a conductive wire on a tooth to which the insulator has been attached, wherein in each of all forward-wound coils and reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which conductive wires in respective layers of the coil are parallel, a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, and an insulator has a guide for guiding the conductive wire along a base of an inner flange of the insulator at a first turn of each coil.

Abstract: An electrical system having an underlying structure resembling the double helix most commonly associated with DNA may be used to produce useful electromagnetic fields for various application.

Abstract: The invention relates to a method of producing an unbonded flexible pipe and an unbonded flexible pipe. The method comprises providing an innermost sealing sheath defining a bore and a longitudinal axis, and a pressure armor layer surrounding the innermost sealing sheath. The pressure armor layer comprises at least one helically wound elongate armor element with at least one helical armor element gap between windings thereof, and the method comprises providing a foundation layer for the pressure armor layer. The foundation layer is provided with at least one helically shaped groove, and the elongate armor element is applied in the helically shaped groove, preferably such that the foundation layer at least partly fills the helical armor element gap, the foundation layer is preferably a fluid permeable foundation layer.

Abstract: A filament winding apparatus includes a tension detecting section, a cutting section and a gripping section. The tension detecting section is arranged on a path of a fiber bundle from a bobbin to a liner, and is configured to detect tension of the fiber bundle between the bobbin and the liner. The cutting section is configured to cut the fiber bundle connected to the bobbin. The gripping section is arranged upstream with respect to the cutting section in a travelling direction of the fiber bundle, and is configured to grip the fiber bundle cut by the cutting section. At this time, in a case where the tension of the fiber bundle detected by the tension detecting section is excessive, the cutting section cuts the fiber bundle and the gripping section grips a yarn end of the fiber bundle connected to the bobbin.

Abstract: An Oxygenator as a medical instrument includes at least one first hollow fiber membrane layer comprised of a plurality of integrated first hollow fiber membranes, and forms a shape of a cylindrical body as a whole, and at least one second hollow fiber membrane layer disposed at the outer circumferential side of the first hollow fiber membrane layer in a state of being concentric with the first hollow fiber membrane layer, has a plurality of integrated second hollow fiber membranes, and forms a shape of a cylindrical body as a whole. Moreover, each of the first hollow fiber membranes is wound around a central axis, and each of the second hollow fiber membranes is wound around a central axis. The number of times the second hollow fiber membranes are wound is smaller than the number of times the first hollow fiber membranes are wound.

Abstract: A design for and method of winding an electric motor, generator or other electrical machine using multiple strands of wire preformed into a wave shape with a plurality of legs connected by shaped end turns. This results in efficient packing and improved machine performance in terms of both efficiency and power density without the need for flux concentrators. The conductors or windings may be preformed so as to be a self supporting structure, aiding assembly and eliminating the need for an iron core.

Abstract: A coil component includes an air-core winding wire portion wound by a wire with a plurality of wound layers by alignment winding, a spiral shaped wound portion in which the wire wound in a spiral shape from an inner edge of an end surface toward an outer edge thereof along the end surface while in contact with the end surface on one side in the axis direction of the winding wire portion, a first lead portion extended and extracted outward from a winding first end point of the spiral shaped wound portion, and a second lead portion extended and extracted outward from a winding second end point at the outer circumference of the winding wire portion.

Abstract: A winding support has at least two parts on which to wind an electrical double coil in two winding planes situated in parallel, orthogonal to a winding axis. Each part has an annular structure with base areas that are identical for all of the parts, and an outer surface that is a band of the surface of a straight cylinder between the bases. Each part has a slit-shaped cut-out extending in a longitudinal direction over a portion of the length of the cylinder. The parts are adjacently connected with one another with a lateral separation therebetween in the direction of the winding axis, and with the cut-outs forming a common slit extending over both parts. An electrical coil has such a winding support, and a method to produce such a coil includes winding a conductor on such a winding support.

Abstract: A coil component includes an air-core winding wire portion wound by a wire with a plurality of wound layers by alignment winding, a spiral shaped wound portion in which the wire wound in a spiral shape from an inner edge of an end surface toward an outer edge thereof along the end surface while in contact with the end surface on one side in the axis direction of the winding wire portion, a first lead portion extended and extracted outward from a winding first end point of the spiral shaped wound portion, and a second lead portion extended and extracted outward from a winding second end point at the outer circumference of the winding wire portion.

Abstract: A medical lead includes a coiled conductor portion that defines at least part of an outer surface of the lead and an expandable coiled fixation element that defines at least a part of the outer surface of the lead. The expandable coiled fixation element is configured to expand from a first dimension in a first state to a second dimension in a second state in a direction away from the coiled conductor portion. In some examples, the expandable coiled fixation element comprises a shape memory material.

Abstract: Composite products and related methods are disclosed. In some examples, methods of filament winding composite components and products, such as a sleeve and/or a mandrel for use in down-hole applications, are disclosed. The winding of components can involve using a percentage of fiber roving strands that are blown during manufacture such that they have fiber loops that when wound as layers forms bridges across the discrete layers to enhance the inter-laminar strength of the composite product.

Abstract: In a method for manufacturing electroactive polymer generators, a strip, including one layer of an electroactive polymer and electrodes applied to sections of this layer, is spirally wound in such a way that multiple electrodes are situated congruently on top of each other, in each case two electrodes situated on top of each other being separated from each other by a layer of electroactive polymer.

Abstract: A stator core is formed from a continuous strip of wound sheet stock material, in which the sheet stock material is converted from the sheet stock to a formed material including winding slot cutouts. This strip of formed material is then wound into the stator core, with the winding slot cutouts in the formed material maintained at a substantially constant width throughout most of the radial extent of the resulting winding slots in the finished article. However, one or more of the radially innermost and radially outermost layers may define winding slot cutouts that are wider than the other winding slot cutouts. Where several radial layers are altered in this way, the cutout widths are progressively expanded such that the resulting winding slot has terminal ends with edges that are effectively “radiused” or rounded, thereby protecting windings near the edge of such slots.

Abstract: The Wind Wing converts wind energy into electrical energy utilizing an oscillating vertical unarticulated wing, and in one of its two models, employs a new type of electrical generator.

Abstract: Provided is a method of manufacturing a resolver having a stator mounted around a rotator and configured to detect a rotational angle of a motor, the method including: forming the stator to have a core with protrusions disposed at a predetermined interval along a rotational direction of the rotator; winding a signal source coil around the protrusions of the core to generate an alternate current (AC) magnetic field when an input voltage signal is applied thereto; and winding a plurality of output signal coils alternately along the rotational direction of the rotator around the protrusions of the core, along the rotational direction of the rotator, to generate induced voltage signals of different phases in response to the AC magnetic field generated by the signal source coil and the rotation of the rotator.

Abstract: An electrical system having an underlying structure resembling the double helix most commonly associated with DNA may be used to produce useful electromagnetic fields for various applications.

Abstract: A device comprising: (a) a body portion including: (i) a first end and ii. a second end; (b) for a holder at the first end; (c) a holder at the second end; (d) a rotation device at the first end in communication with the holder at the first end; and wherein the holder is fixedly attached to a split gear having a channel therethrough so that one or more flexible mediums may be placed through the channel and removed from a work area located between the holder at the first end and the holder at the second end.

Abstract: A method of making a downhole swellable seal with a passageway therethrough includes, perimetrically surrounding a first tubular with a first substantially nonswellable material, perimetrically surrounding at least one second tubular with a second substantially nonswellable material, positioning the at least one second tubular adjacent the first tubular, perimetrically surrounding the first tubular and the at least one second tubular with a swellable material, curing the first substantially nonswellable material, curing the second substantially nonswellable material, and curing the swellable material.

Abstract: An improved solenoid having an enhanced magnetic field and failsafe operation is provided, wherein a primary winding and a secondary winding are constructed such that the combined force imparted on a plunger by both windings energized together is greater than the sum of the forces imparted by the primary and secondary windings energized separately, resulting in a smaller solenoid capable of providing a predetermined force, and providing a solenoid capable of tripping a circuit interrupting latch even if one of the windings is broken.

Abstract: A method of reducing defect heights of iron mound defects on a mill glass coated electrical steel, comprises contacting at least a portion of a surface of a mill glass coated electrical steel with an acidic solution for a contacting time sufficient to reduce an average height of iron defects on the surface to a an average height in a range of 0 percent to 150 percent of the thickness of the mill glass coating, without effectively removing the mill glass coating. After contacting, the acid contacted mill glass coated electrical steel is rinsed with water and dried.

Abstract: Embodiments of the present invention pertain to windings and methods thereof. A disclosed winding is for an inductive device, having a winding core and a winding portion. The winding portion has a first winding layer, a connection section, and a second winding layer. The first winding layer comprises a first solenoid wound around the winding core along a step direction. The connection section is on the first winding layer, substantially in parallel to the step direction. The second winding layer comprises a second solenoid wound around the first winding layer along the step direction. The connection section electrically connects the first and second winding layers.

Abstract: The invention relates to an electromagnet and a method manufacturing the same. The electromagnet includes a frame having a volume within, and a conductive wiring wound around the frame. In accordance with the invention the magnet includes at least two circular grooves having two walls parallel to the each other and perpendicular to the longitudinal axis of the frame, at least two wire stacks each including at least one substack, wherein the wire has a cross section, at least one of the walls separating the two circular grooves, and jump wiring interconnecting the stacks so that contributions from jump wires of the adjacent stacks to total axial directional current are cancelled in average by the current of the return current wire, such that their contribution to the resulting magnetic field at the sample volume is minimized.

Abstract: There are provided a coil component and a method of manufacturing the same. The coil component includes a core; at least one bobbin coupled to the core and having a coil wound therearound; and a base having the core seated therein and including an external connection terminal, wherein one side of the core is seated in the bobbin and the other side thereof is exposed to the outside of the base.

Abstract: A manufacturing method for manufacturing a rotating electrical machine equipped with a stator that includes a continuously wound coil unit achieved by continuously winding concentrated winding-type coils via cross wires, with coil wire having a rectangular section.

Abstract: Disclosed herein are a transformer and a method of manufacturing the same. The transformer includes: a primary side winding having a loop shape; a secondary side winding formed on the same plane as that of the primary side winding in a remaining section except for at least a section at which it intersects with the primary side winding and having the same loop shape as that of the primary side winding so as to be electromagnetically coupled to the primary side winding; and an intersecting section formed so that the primary side and secondary side windings having the sum of the turn numbers of 3 or more intersect with each other in a two-layer structure, wherein the intersecting section includes at least one point of intermediate node having one side connected in a first layer and the other side connected in a second layer.

Abstract: A method for winding a coil on an object, wherein the coil includes a plurality of first coils and a plurality of second coils, may have winding the first coils on an exterior circumferences of the second coils, wherein an outer circumferences of the respective second coil is enclosed and in contact with outer circumference of at least three first coils, and wherein cross-sectional area of the second coil is smaller than that of the first coil, and wherein the outer circumference of the at least three first coils are in contact each other.

Abstract: A high-pressure tank configured to store a fluid includes: a liner; and a fiber-reinforced resin layer configured to include a fiber and to cover surface of the liner. The liner includes: a cylindrical liner portion in a cylindrical shape; and dome liner portions in a dome shape connected with respective sides of the cylindrical liner portion, each dome liner portion being connected with the cylindrical liner portion, such that an outer surface of the dome liner portion is inclined at a predetermined angle to an outer surface of the cylindrical liner portion. The fiber-reinforced, resin layer includes a hoop layer formed on the outer surface of the cylindrical liner portion to cover the outer surface of the cylindrical liner portion and provided by hoop winding that winds the fiber substantially perpendicularly to a central axis of the cylindrical liner portion.

Abstract: A bobbin for layer winding of superconducting wire and a layer winding method using the same are provided. The bobbin for layer winding of superconducting wire includes a cylindrical bobbin body on which the superconducting wire is wound, and a plurality of spacers having a fan-shaped periphery to guide the superconducting wire, wherein a plurality of layers are formed on the cylindrical bobbin body by the spacers.

Abstract: A coil component includes an air-core winding wire portion wound by a wire with a plurality of wound layers by alignment winding, a spiral shaped wound portion in which the wire wound in a spiral shape from an inner edge of an end surface toward an outer edge thereof along the end surface while in contact with the end surface on one side in the axis direction of the winding wire portion, a first lead portion extended and extracted outward from a winding first end point of the spiral shaped wound portion, and a second lead portion extended and extracted outward from a winding second end point at the outer circumference of the winding wire portion.

Abstract: A winding body for a magnetic assembly of a solenoid valve is disclosed, which comprises a base body, onto which a winding wire is wound, and two electrical connection domes, each of which has a first clamping gap with a first width, into which the winding wire wound onto the base body is inserted, wherein each of the winding wire ends rests on a contact surface of a wire support, which, in the direction of the corresponding winding wire end, is arranged behind the first clamping gap, and to a corresponding magnetic assembly, and to a corresponding solenoid valve comprising such a winding body, and to a corresponding method for winding the winding wire onto the winding body according to the disclosure. In order to receive the corresponding winding wire end, in the region of the contact surface of the wire support, a second clamping gap with a minimal second width is arranged behind the first clamping gap, the width being smaller than the first width of the first clamping gap.

Abstract: Integrated high frequency balanced-to-unbalanced transformers and inductors suitable for operation in high frequencies, such as radio frequencies. Embodiments disclosed give consideration to issues related to the layout of the top and bottom inductors for the minimization of capacitive effects between layers and methods of manufacturing thereof. A displacement between the conductive paths of the top inductor and the bottom inductor is shown that provides for superior performance over prior art solutions.

Abstract: The object of the invention is a method for building hoses reinforced with spirally laid fibers, where the hose under construction (3) undergoes both rotation and advancing motion relative to the laying head (12), and where the reinforcing fibers are unwound from drums (14). The drums (14) are rotated about two axes, the first axis being the principal axis of the drums (A) and the second axis (B) being nearly parallel with the direction in which the fibers are unwound, where the direction of rotation of the drums (14) about the second axis (B) is the same as the direction in which the hose under construction (3) is rotated.

Abstract: The invention relates to diesel soot particulate filter cartridge having a central filter cartridge axis. The filter cartridge has a radial flow. The filter cartridge comprises a porous structure. The porous structure is coiled around the central filter cartridge axis. The porous structure comprises non-sintered metal fibers, said fibers having a roughness being higher than 1.7. The invention further relates to a method of manufacturing a diesel soot particulate filter cartridge. Furthermore the invention relates to a multicartridge diesel soot particulate filter. The flow through the multicartridge diesel soot particulate filter is axial while the flow through the filter cartridges is radial.

Abstract: A method for producing an assembled battery, comprising the following steps: (a) producing a plurality of unit cells; (b) arranging the plurality of unit cells in a nested manner such that one unit cell is disposed within another unit cell; and (c) electrically connecting the plurality of unit cells with one another in parallel or in series. The problem that toroidal batteries with high capacity, high power density and small thickness may have a large volume and low energy density is solved by connecting in parallel a plurality of unit cells nested within one another, and heat dissipation of the battery is also further improved. An assembled battery produced by the method is also provided.

Abstract: Disclosed is a filament winding device wherein an FRP layer is prevented from becoming thick by avoiding piled fibers in the case of the feeding of multiple filaments when a plurality of fibers are fed simultaneously. For realizing this theme, a filament winding device moves a fiber guide member equipped with a plurality of fiber feeding ports relatively in an axial direction of a wound member rotating relatively about the axis, and feeds fibers through the fiber feeding ports to wind the fibers around the wound member, wherein the fiber feeding ports are provided only in part of the fiber guide member. When the fiber guide member is moved relatively in the axial direction of the wound member, a plurality of fibers are fed only from one side when viewed from the wound member and the fibers are wound around the wound member while being gathered on the periphery of the wound member.

Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-fixing hollow holed bobbin including a coil discharge unit formed from a peripheral upper end to a peripheral bottom end facing the peripheral upper end, and a coil block arranged at a periphery of the bobbin and including a cylindrically wound coil; a stator including a magnet facing the coil block and a yoke fixing the magnet; a case including a bottom case arrange with the bobbin and an upper case coupled to the bottom case and having an opening at a portion corresponding the bobbin; and an elastic member elastically supporting an upper end of the bobbin and a bottom end facing the upper end of the bobbin, wherein a distal end of the coil arranged at an upper end of the coil block employs the coil discharge unit to be discharged to a bottom end of the bobbin.

Abstract: A holding sealing material includes laminated mats. One or more fixed parts partially combine the mats. Each of the mats has a basic rectangular shape. Each of the mats has a recess on one of shorter sides of the rectangular shape and a projection on another shorter side and is designed to be wound around an object to be wound so that the projection and the recess are fitted to each other. The mats have respective longitudinal lengths that increase as a distance from the object to each of the mats increases. A mat that is placed at a closest position to the object has a shortest longitudinal length. An area of the projection of the mat that is placed at a closest position to the object is smaller than an area of the projection of a mat that is placed at a farthest position from the object.

Abstract: The invention relates to a moving device for a coil core or a coil having a closed shape with an inner contour and an outer contour, including first and second rollers able to rotate around a respective axis and intended to bear against one of the two contours of the core or of the coil, means for driving at least one of said rollers in rotation, and retaining means associated with each roller, the retaining means being subject to first return means arranged to bring the first retaining means closer to the other of the two contours of the core or the coil, as well as a coil winder equipped with such a device.

Abstract: A spool carrier has a winding body with a shell having a trapezoidal cross section with two substantially right angles and one acute angle, wherein the spool wire is guided on the obtuse angle edge of the winding body, beginning parallel to the front face edges of the winding body, along the side surface adjoining the obtuse angle edge, around the winding body, to the acute angle edge of the winding body, and guided on the front face from the acute to the obtuse angle edge at an angle to the front face edge, such that it comes to rest on the obtuse angle edge in one winding step directly adjacent to the winding wire of the previous winding, and in one winding step in the next adjacent groove between two windings of the previous layer, or optionally between the flange and the winding of the previous layer.

Abstract: A filter module comprises a body of wound layers of sheet material, said body having inner and outer peripheral surfaces and a winding axis and a passage extending along the winding axis and in fluid communication with the inner peripheral surface, the sheet material having openings forming two channel types extending from the inner to the outer peripheral surfaces, a first channel type open at the outer peripheral surface and closed adjacent to the inner peripheral surface, a second channel type open at the inner peripheral surface, in fluid communication with the passage and closed adjacent to the outer peripheral surface, the two channel types separated from each other by sheet material, one channel type communicating with a module port, the other channel type communicating with another module port, wherein a majority of openings forming the inlet channels incompletely register with corresponding openings of an adjacent layer.

Abstract: A separator is disclosed which provides an electrically insulating layer between groups of windings in an electrical apparatus, such as a rotating electrical machine. The separator comprises a matrix of interconnected rods. This can allow air gaps to be present between groups of windings, which may improve the cooling efficiency of the apparatus.

Abstract: Internally reinforced structural composites, suitable uses for such composites, and associated methods of manufacturing are disclosed herein. In one embodiment, a method of making a reinforced structural component includes forming a precursor having a crystal structure with a plurality of lattice layers and exfoliating the precursor. As a result, a distance between adjacent pairs of the plurality of lattice layers is expanded. The method also includes wrapping the exfoliated precursor with a surface support material around at least a portion of a circumference of the individual lattice layers in the exfoliated precursor.

Abstract: A conductor assembly and method for constructing an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one embodiment the method includes providing a first insulative layer having a curved surface along which a conductor segment may be positioned, and forming a channel in the insulative layer, which defines a first conductor path. The channel includes first and second opposing channel surfaces each extending from the surface of the insulative layer into the insulative layer and a third channel surface extending between the first and second channel surfaces. Each of the first and second channel surfaces includes a substantially flat surface portion with the surface portion of the first channel surface parallel with the surface portion of the second channel surface. A first segment of conductor is placed in the channel.

Abstract: A conductor assembly of the type which, when conducting current, generates a magnetic field or in which, in the presence of a changing magnetic field, a voltage is induced. A helical wiring pattern is positioned along an axis a radial distance R from the axis. The wiring pattern is formed about an aperture region extending from the axis toward the wiring pattern, the distance R varying along a portion of the axis.

Abstract: The invention relates to a thermopile wire (1), a winding support for such a thermopile wire, as well as a method and a machine (11) for producing a thermoelectric generator including a thermopile wire (1). The invention takes into account that the effective winding diameter changes from one winding layer of the thermopile wire (1) to the next when the thermopile wire (1) is wound.