HUB FOR FLYWHEEL AND FLYWHEEL FOR ENERGY STORAGE HAVING SAME

There are provided a hub for a flywheel and an energy storage flywheel. The hub for a flywheel is provided between a rotor and a rotational shaft of a flywheel to allow the rotor to have the same rotation speed as that of the rotational shaft. The hub includes a hollow main dome in which a through hole into which the rotational shaft is inserted is formed in one end and an opening is formed in the other end in a longitudinal direction of the rotational shaft, and that is formed by winding a composite material therearound; and a sub dome that is bonded to the rotor and is formed by winding the composite material around an outer surface of the main dome. 1. A hub for a flywheel that is provided between a rotor and a rotational shaft of a flywheel to allow the rotor to have the same rotation speed as that of the rotational shaft , the hub comprising:a hollow main dome in which a through hole into which the rotational shaft is inserted is formed in one end and an opening is formed in the other end in a longitudinal direction of the rotational shaft, and that is formed by winding a composite material therearound; anda sub dome that is bonded to the rotor and is formed by winding the composite material around an outer surface of the main dome,wherein any one of the main dome and the sub dome expands in a radial direction of the rotational shaft along with the rotation of the rotational shaft and the rotor to allow the sub dome and the rotor to be maintained at a bonded state therebetween.2. The hub for a flywheel according to claim 1 ,wherein the sub dome includes a first sub dome wound around the outer surface of the main dome and a second sub dome wound around an outer surface of the first sub dome, andthe main dome, the first sub dome and the second sub dome have different winding angles from each other.3. The hub for a flywheel according to claim 2 , wherein the first sub dome has a winding angle smaller than that of the main dome claim 2 , and the second sub dome has ...

SPINDLE STRUCTURE AND OPTICAL DISC DRIVE INCLUDING THE SPINDLE STRUCTURE

A spindle structure for an optical disc and an optical disc drive employing the spindle structure are provided. The spindle structure includes a spindle motor having a rotation axis, a spindle that is coupled to the rotation axis, and a sliding cone coupled to the spindle and inserted into a center hole of the optical disc. The sliding cone includes a plurality of hook-shaped guide rods extended toward the spindle, and the spindle includes guide holes, to which the plurality of hook-shaped guide rods are inserted into and coupled. 1. A spindle structure comprising:a spindle motor comprising a rotation axis;a spindle that is coupled to the spindle motor and which is configured to have an optical disc mounted thereon; anda sliding cone coupled to the spindle and configured to be inserted into a center hole of the optical disc,wherein the sliding cone comprises a plurality of hook-shaped guide rods extended toward the spindle, and the spindle comprises a plurality of guide holes configured to receive the plurality of hook-shaped guide rods to securely couple the sliding cone and the spindle.2. The spindle structure of claim 1 , wherein an end portion of each hook-shaped guide rod comprises a projection that is configured to securely fasten the plurality of hook-shaped guide rods into the plurality of guide holes claim 1 , andthe spindle structure further comprises a compression spring elastically supporting the sliding cone and which is disposed between the spindle and the sliding cone.3. The spindle structure of claim 1 , further comprising:a clamper configured to fasten the optical disc to the spindle; anda chucking spring configured to press a top surface of the clamper.4. The spindle structure of claim 3 , wherein the chucking spring comprises:a pressing portion pressing the top surface of the clamper; anda plurality of flexible portions formed around the pressing portion and providing an elastic force toward the clamper.5. The spindle structure of claim 4 , ...

Blade for a Wind Turbine and Wind Turbine Comprising Said Blade

The present invention relates to a blade for a wind turbine comprising at least a longitudinal component comprising at least two longitudinal stretches with fibers at different orientations depending on the location of these stretches along the blade, where the orientation of the fibers in the stretches of the blade is adapted to the prevailing load states in each of the stretches. 2. The blade of wherein the at least one longitudinal component additionally comprises:a first zone where shear stresses prevail over normal and longitudinal stresses, anda second zone closer to the tip of the blade than the first zone, wherein the longitudinal stresses prevail over the shear and normal stresses.3. The blade of further comprising a root and wherein the first zone of the longitudinal component extends from the root of the blade to a region where a chord of the blade is maximum.4. The blade of further comprising a tip claim 3 , wherein the first longitudinal stretch is comprised within the first zone claim 3 , the second zone extends from an end of the first zone to the tip of the blade claim 3 , and the second longitudinal stretch is comprised within the second zone.5. The blade of wherein the first angle with respect to the reference direction of the first plurality of fibers of the first longitudinal stretch is within a range (30° to 60°) claim 1 , being preferably 45° claim 1 , or within its conjugate (−30° to −60°) claim 1 , being preferably −45°.6. The blade of wherein the second angle with respect to the reference direction of the second plurality of fibers of the second longitudinal stretch is within a range (10° claim 1 , 30°) claim 1 , being preferably 25° claim 1 , o within its conjugate (−10° claim 1 , −30°) claim 1 , being preferably −25°.7. The blade of wherein the first longitudinal stretch and the second longitudinal stretch are adjacent.8. The blade of wherein the at least one longitudinal component of the blade of the wind turbine comprises at least a ...

Prosthetic intervertebral discs

A prosthetic intervertebral disc and methods for using the same are provided. The subject prosthetic discs are characterized by including top and bottom endplates separated by a fibrous compressible element that includes an annular region and a nuclear region. The two plates are held together at least one fiber wound around at least one region of the top endplate and at least one region of the bottom endplate. The subject discs may he employed with separate vertebral body fixation elements, or they may include integrated vertebral body fixation elements. Also provided are kits and systems that include the subject prosthetic discs.

MANUFACTURING METHOD OF HUB FOR FLYWHEEL

There are provided a hub for a flywheel and an energy storage flywheel. The hub for a flywheel is provided between a rotor and a rotational shaft of a flywheel to allow the rotor to have the same rotation speed as that of the rotational shaft. The hub includes a hollow main dome in which a through hole into which the rotational shaft is inserted is formed in one end and an opening is formed in the other end in a longitudinal direction of the rotational shaft, and that is formed by winding a composite material therearound; and a sub dome that is bonded to the rotor and is formed by winding the composite material around an outer surface of the main dome. Any one of the main dome and the sub dome expands in a radial direction of the rotational shaft along with the rotation of the rotational shaft and the rotor to allow the sub dome and the rotor to be maintained at a bonded state therebetween. 1. A method of manufacturing a hub for a flywheel that is provided between a rotor and a rotational shaft of a flywheel to allow the rotor to have the same rotation speed as that of the rotational shaft , the method comprising:forming a hollow main dome in which a through hole into which the rotational shaft is inserted is formed in one end and an opening is formed in the other end in a longitudinal direction of the rotational shaft by winding a composite material therearound; andwinding the composite material around an outer surface of the main dome to form a sub dome that is bonded to the rotor,wherein any one of the main dome and the sub dome expands in a radial direction of the rotational shaft along with the rotation of the rotational shaft and the rotor to allow the sub dome and the rotor to be maintained at a bonded state there between.2. The method according to claim 1 ,wherein the sub dome includes a first sub dome wound around the outer surface of the main dome and a second sub dome wound around an outer surface of the first sub dome, andthe main dome, the first sub ...

Prosthetic Intervertebral Discs

A prosthetic intervertebral disc and methods for using the same are provided. The subject prosthetic discs are characterized by including top and bottom endplates separated by a fibrous compressible element that includes an annular region and a nuclear region. The two plates are held together at least one fiber wound around at least one region of the top endplate and at least one region of the bottom endplate. The subject discs may be employed with separate vertebral body fixation elements, or they may include integrated vertebral body fixation elements. Also provided are kits and systems that include the subject prosthetic discs. 1. A prosthetic intervertebral disc , comprising:a polymeric component;a first plate with a first plurality of slots;a second plate with a second plurality of slots; anda fibrous component passing through the first plurality of slots and the second plurality of slots such that the first plate is held to the second plate,wherein the fibrous component is wound obliquely between the first plurality of slots and the second plurality of slots a plurality of times to form a number of layers of fiber, andwherein the fibrous component and the polymeric component are distinct, and wherein the polymeric component is located between the first and second plates.2. The prosthetic intervertebral disc of wherein the fibrous component forms a pattern further having a horizontal portion with respect to the first and second plates.3. The prosthetic intervertebral disc of claim 1 , wherein each of the first plurality of slots has a width claim 1 , a length greater than the width claim 1 , and a depth claim 1 , and each of the second plurality of slots has a width claim 1 , a length greater than the width claim 1 , and a depth claim 1 , andwherein the fibrous component passes through each of the first plurality of slots along the depth of each of the first plurality of slots, and passes through each of the second plurality of slots along the depth of each of ...

Prosthetic intervertebral discs having substantially rigid end plates, fibers between those end plates, and core members with comparatively thin edges

Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.

Prosthetic Intervertebral Discs Having Rigid End Plates With Depressions In Their Inner Surfaces And Fibers Between Those End Plates

Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.

TEXTILE REINFORCING COMPLEX FOR COMPOSITE PARTS, AND COMPOSITE COMPONENTS INTEGRATING SUCH COMPLEX

Prosthetic intervertebral disc and methods for using same

Prosthetic intervertebral discs (100) and methods for using the same are described. The subject prosthetic discs (100) include upper (110) and lower (120) endplates separated by a compressible core member (130). The prosthetic discs (100) described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs (100) exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs (100). The interface mechanism between the endplates (110, 120) and the core members (130) of several embodiments of the described prosthetic discs (100) enables a very easy surgical operation for implantation.

Method and a Kit for Inserting Prosthetic Intervertebral Discs into a Spine

Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the saggital plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.

Lâmina para uma turbina eólica e turbina eólica compreendendo referida lâmina

LÂMINA PARA UMA TURBINA EÓLICA E TURBINA EÓLICA COMPREENDENDO REFERIDA LÂMINA. A presente invenção refere-se a uma lâmina (10) para uma turbina eólica (20) compreendendo ao menos um componente longitudinal incluindo ao menos dois trechos longitudinais com fibras em diferentes orientações dependendo da posição desses trechos ao longo da lâmina (10), onde a orientação das fibras nos trechos da lâmina (10) é adaptada ao estado de carga prevalecido em cada dos trechos.

エネルギー保存用フライホイール

【課題】内部応力の発生を最小限に止めるとともに、共振周波数を高めることができるエネルギー保存用フライホイールを提供する。 【解決手段】本発明によるエネルギー保存用フライホイールは、回転軸；前記回転軸と同軸をなすように前記回転軸に具備される中空型ハブ；及び前記回転軸と同軸をなすように前記中空型ハブの外周面に具備されるリング型ロータ；を含み、前記中空型ハブは、前記多層型ロータに接触するシリンダー形状の接触部；及び前記接触部からドーム型に延長して前記回転軸に固定される少なくとも２つのドーム型固定部；を含むことを特徴とする。 【選択図】図３

Prosthetic intervertebral discs having end plates and fibers between those end plates

Prosthetic intervertebral discs and methods for using the same are described. The subject prosthetic discs include upper and lower endplates separated by a compressible core member. The prosthetic discs described herein include one-piece, two-piece, three-piece, and four-piece structures. The subject prosthetic discs exhibit stiffness in the vertical direction, torsional stiffness, bending stiffness in the sagittal plane, and bending stiffness in the front plane, where the degree of these features can be controlled independently by adjusting the components of the discs. The interface mechanism between the endplates and the core members of several embodiments of the described prosthetic discs enables a very easy surgical operation for implantation.