49results about How to "Increased moment of inertia" patented technology

A golf club having an increased moment of inertia and improved ball-hitting directionality is provided. A metal hollow golf club head comprises: a face portion; a crown portion; and a sole portion, and when the golf club has a lie angle of 60° with its club head volume being within 470 cm³, a moment of inertia about the axial line centered on the plumb line passing through the golf club head center of gravity is 5000 to 6000 g-cm². In order to increase the moment of inertia, the thickness of the center portion of the crown portion is reduced by chemical etching, and a mass, including the portion of mass reduction, is positioned in the sole portion on the side of the toe portion; moreover, the separation distance from the center of gravity to the mass is increased.

A spinning reel for fishing includes: a reel body including a front portion; a handle provided in the reel body; a cap-shaped cover body including a surrounding wall mounted in the front portion of the reel body; a spool on which a fishing line is to be wound; a rotor including a fishing line guide part, the rotor being rotated by the rotational manipulation of the handle to wind the fishing line on the spool; a driving part passing through the cover body and transmitting the rotation of the handle to the rotor; a support part provided in the front portion of the reel body and supporting the driving part; and a magnetic seal device mounted in the cover body and including a magnet, a cylindrical magnetic body forming a magnetic circuit between the magnetic body and the magnet and magnetic fluid maintained between the magnet and the magnetic ring.

Provided is an exhaust turbine equipped with an exhaust control valve (waste gate valve) which can reduce wear of the contact surfaces between the shaft and the bushing or the turbine casing that support the moving components of the valve in the entire operating range of the exhaust control valve. The exhaust turbine is equipped with the exhaust control valve for opening/closing an exhaust bypass passage which extends from an exhaust passage leading the exhaust turbine being driven by exhaust gas output from an engine to an exhaust outlet passage while bypassing the exhaust turbine, wherein the exhaust control valve comprises a shaft which is supported rotation-freely by a bushing or a turbine casing and supports a valve element for controlling the opening of the exhaust bypass passage, an arm equipped with a connecting part with a drive source and turning the shaft about the axis thereof by the reciprocating motion of the connecting part produced by the drive source, and a weight attached to an end on the side opposite to the connecting part with the drive source with respect to the axis of the shaft.

A brake dust collecting device for a motor vehicle has a dust collecting unit and an air flow generating device that generates an air flow that flows across brake parts of a motor vehicle wheel brake and that supplies brake dust of the wheel brake to the dust collecting unit. The air flow generating device has a rotatable fan blade and the dust collecting unit is a filter element.

The invention relates to an integrated yaw type floating wind power plant at sea. The integrated yaw type floating wind power plant at seat is provided with a plurality of yaw type wind generating sets and an annular floating platform. Each yaw type wind generating set comprises wind wheels, an engine room, a tower bowl and a steering frame. The wind wheels are installed on the engine room, the engine room is fixed on the tower bowl, and the bottom of the tower bowl is installed on the steering frame. The annular floating platform comprises an annular rail and a plurality of floating bowls used for supporting the annular rail. The steering frame of each yaw type wind generating set runs around the circle center of the annular floating platform on the annular rail in an annular mode. Metal space trusses or grid structures are adopted for body structures of the tower bowls, and each metal space truss or each grid structure is composed of steel plates with different thicknesses. A respective single yaw system of each wind generating set is saved, the failure rate can be reduced, and maintenance cost and personal safety accidents can be reduced. Strength and rigidity of the tower bowls can be greatly improved, and with the same number of steel products, anti-bending inertia moments of the tower bowls can be greatly improved.

A racket comprising a frame body having a face portion, a shaft portion, and a grip portion, and a groove in the length of 10% to 20% against the entire circumference of the frame comprising the face portion provided at two portions covering maximum width points of the frame comprising the face portion and a closed tube enclosing a slidable weight weighing 2 g to 10 g is embedded in the groove.

A method for reinforcing a double-curved arch bridge with a corrugated arch plate comprises pouring a main arch ring arch rib reinforcement layer on the outside of the main arch ring supply rib, pouring a main arch plate reinforcement layer on that main arch ring arch plate, the main arch plate reinforcement layer and an arch plate groove area forming a cavity. Compared with the reinforcement method of directly filling the groove area on the arch plate in the prior art, the invention increases the bending moment of inertia of the section, at the same time, the material consumption is small, which is favorable for the stress of the structure before the newly poured concrete reaches the strength standard value. The invention does not change the characteristics of the double-curved arch bridge, and retains the historical style and features of the bridge. The invention also replaces the original filler with the lightweight filler, lightens the dead weight of the structure, reduces the stress level under the action of the original structure under the dead load, makes the load shared by the reinforcement layer larger, and gives full play to the bearing capacity of the reinforcement layer.

A pair of A-frame members of molded plastic support an elongated beam extending through openings in apex portions thereof. Pockets are provided in the outsides of two legs of each A-frame member into which elongated weight cartridges are placed to be securely held to the legs. The legs and pockets are so formed that with a low volume and weight, a high strength and rigidity of the legs is achieved, a substantial contribution being made by the weight cartridges. The weights of the cartridges are used to resist tilting movement of the barricade and to achieve stability with a high degree of efficiency. The weight cartridges are preferably blow-molded plastic tubes filed with slag or sand and most preferably are interchangeable with cartridges currently in use in other applications. For additional stability, the legs of each A-frame member may be secured to an elongated member, to a plastic tube mounted there-between and/or to a blow-molded panel that is adapted to be filled with a weighty material and face in a longitudinal direction. Also, for additional strength and stability, elongated beams may be hung on lower portions of legs of the pair of A-frame members.

A ball striking device, such as a golf club, includes a head with a face having an outer surface configured for striking a ball, a body connected to the face, and a plurality of cavities in the face, each cavity configured to receive an insert. The head may also include a plurality of inserts received within the cavities. The inserts may be made from one or more different materials having different densities. Different inserts having different densities can be connected to the face to customize the weighting of the face, such as to adjust the location of the center of gravity of the face or to change the moment of inertia of the head.

A multilayer golf ball formed of a core, a cover layer and an optional intermediate layer disposed between the core and cover, wherein at least one layer includes a composition including a diisocyanate, a polyol or amine-terminated compound, and a curing agent, wherein the curing agent includes a diol or secondary diamine.

A golf club having an increased moment of inertia and improved ball-hitting directionality is provided. A metal hollow golf club head comprises: a face portion; a crown portion; and a sole portion, and when the golf club has a lie angle of 60° with its club head volume being within 470 cm³, a moment of inertia about the axial line centered on the plumb line passing through the golf club head center of gravity is 5000 to 6000 g-cm². In order to increase the moment of inertia, the thickness of the center portion of the crown portion is reduced by chemical etching, and a mass, including the portion of mass reduction, is positioned in the sole portion on the side of the toe portion; moreover, the separation distance from the center of gravity to the mass is increased.

The automatic magnetically suspending rotor type energy saving kitchen ventilator consists of special hollow cylinder type magnetically suspending motor, chimney, ventilation door, casing, guard net, oil ring and box, control switch, playing system, physical sensor, chemical sensor, microcomputerized controller, timing regulator and cupboard. The present invention has several functions including playing music and various knowledge and gas leakage alarm, no friction resistance, no noise, great sucking force and obvious energy saving effect, and may be widely used.

A molded siding member having an encapsulated foam core that extends substantially the entire length of the member in which it is contained, and a molding system therefor. The siding member includes a cementitious shell molded about the foam core, the shell being formed from cementitious slurry, including gypsum cement and a latex/water mixture, or hydraulic cement. After sufficient curing, the siding member is removed from the mold and is ready for immediate use and/or further processing. Also, production methods are disclosed, including a continuous method for producing relatively long lengths of the siding that can be cut to an appropriate size, without the need to produce individual siding members of limited size.

The invention provides a starter generator, which includes a fixed shaft, a transmission wheel sleeved on the fixed shaft and connected in rotation with the fixed shaft, and a casing arranged on the transmission wheel. There is a power generation component. The power generation component includes an excitation coil set on a fixed shaft and a permanent magnet set on the inner wall of the casing. Since the casing is set on the transmission wheel, the permanent magnet rotates with the transmission wheel to cut the magnetic force line to generate electricity. , through the setting of the outer rotor and the inner stator, the rotor is fixed on the casing, the casing not only plays a role of protection, but also increases the weight of the rotor to increase the rotational inertia of the rotor, so that the power generation can be reduced under the same output power The start-up energy consumption of the generator makes the start-up of the generator more economical and efficient. The outside of the housing is provided with a counterweight for increasing the rotational inertia of the housing, thereby making the start-up of the generator more economical and efficient.

An iron-type golf club head having a club face provide with a plurality of grooves extending in the toe-heel direction, satisfies the following conditions (1) the loft angle of the club head is not more than 41 degrees, (2) the thickness of the club head is not more than 23 mm, (3) the height of the club face measured along the club face at the position of the most toe-side end of the grooves is not less than 53 mm, (4) in a standard state of the club head set on a horizontal plane at the lie angle and loft angle specified for the club head, the ratio M/Sh (g sq·cm/mm) of a moment M of inertia (g sq·cm) around a first axis passing through a sweet spot in parallel with the club face and perpendicularly to the grooves, and a sweet spot height Sh (mm) which is the vertical height from the horizontal plane to the sweet spot is not less than 152.

The invention relates to an advanced supporting structure spliced by adopting corrugated steel pipe sheets and an advanced supporting method. According to the structure and the method, the stability of an excavation working surface of the tunnel project can be guaranteed. The structure comprises a plurality of corrugated steel splicing modules and grout, wherein the corrugated steel splicing modules are mutually overlapped and fixed in the longitudinal direction of a tunnel, and the grout is used for filling the spaces between the corrugated steel splicing modules and a tunnel surrounding rockthrough injection; and each corrugated steel splicing module is composed of a plurality of corrugated steel pipe sheets, wherein the corrugated steel pipe sheets are assembled and formed by clampingin the circumferential direction through annular joints and fixedly connecting in the longitudinal direction through longitudinal joints. Compared with the prior art, the structure and the method havethe advantages that modular splicing is adopted, the construction efficiency is high, the structural strength is high, the structure can be used as an initial supporting structure, and intelligence,automatic construction and the like are facilitated.

The invention discloses a large-amplitude load increasing and reinforcing method for an existing steel plate combined continuous beam bridge. The method comprises the steps of putting up a temporary support nearby a combined beam bending moment zero point; then conducting first-time jacking on a combined beam, and chiseling damaged concrete on a middle bridge pier cap and a pier top hogging momentregion bridge deck slab; then conducting second-time jacking, hoisting a prefabricated trough beam, welding an upper flange of the prefabricated trough beam to a lower flange of a steel girder, and then constructing the bridge pier cap; casting concrete to the hogging moment region bridge deck slab; after the concrete reaches the designed intensity, unloading a jack, and dismantling the temporarysupport to complete construction. By means of the method, on one hand, the bearing capacity of the steel plate combined continuous beam can be greatly improved; on the other hand, the problem that the concrete of the hogging moment region bridge deck slab of the steel plate combined continuous beam cracks can be effectively solved, and the purpose of conducting load increasing and reinforcing onthe existing steel plate combined continuous beam is achieved.

The invention discloses a system reinforcing method for a steel plate combined continuous beam. The system reinforcing method comprises the steps that a temporary support is erected near a bending moment zero point of the combined beam; secondly, the composite beam is jacked for the first time, a support system on a cover beam of the middle pier is removed, and damaged concrete of a bridge deck ina hogging moment area of the top of the middle pier is chiseled away; then, secondary jacking is conducted, a prefabricated channel beam is hoisted to be installed on the middle pier cover beam, andthe upper flange of the prefabricated channel beam is connected with the lower flange of an H-shaped beam in a welded mode; meanwhile, longitudinal ribs and vertical ribs are implanted into the middlepier cover beam, and studs are welded to the inner side of a steel web of the H-shaped beam; finally, concrete is poured, the temporary support is dismantled, and construction is completed. On one hand, the bearing capacity and torsional distortion resistance of the steel plate combined continuous beam can be greatly improved, on the other hand, the problem of bridge deck slab cracking in the hogging moment area of the steel plate combined continuous beam can be effectively solved, and the purpose of reinforcing an existing steel plate combined continuous beam system is achieved.

The invention discloses an inertia generator, which comprises a fixed magnetic ring, a suspension magnetic ring and a generator motor. The generator motor is provided with a motor shaft, the generatormotor drives the motor shaft to rotate circumferentially after being connected with a current, and the generator motor enters a power generation state after the current is cut off; the suspension magnetic ring is embedded in an insulating disc to form a rotor, and the insulating disc is made of an insulating material; the insulating disc can slide axially and is arranged on the motor shaft in a manner of being incapable of rotating relative to a circumference; and the fixed magnetic ring and the suspension magnetic ring have magnetism, and the gravity of the rotor is counteracted through a magnetic force between the fixed magnetic ring and the suspension magnetic ring so that the rotor can suspend. The rotor is lifted through the magnetic force of the fixed magnetic ring and the suspension magnetic ring so that the weight of the rotor can be effectively increased, but the rotor is suspended and hardly has the friction force, the generator motor can drive the weight which is more thanseveral times of a rated load, the rotor weight is increased, and later rotation inertia is greatly increased too; and therefore, a generating capacity can be effectively improved.

The invention provides an external moving cable rotating system. The system is used for accelerating an uplink spacecraft so as to enable the spacecraft to enter an orbit. After the uplink spacecraftis in butt joint with the tail end of a main rope of the external moving cable rotating system, a winch unwinds cables, so that the spacecraft moves outwards on one side and rotates around the centerof mass on the other hand, and mechanical work generated by the cable is converted into electric energy to be stored by the winch or converted into heat energy of a brake. According to the method, theline speed and the centrifugal acceleration of the spacecraft after butt joint can be reduced. In particular, a retarder is arranged in the winch. By means of the method, centrifugal force can be greatly reduced, and comfort is improved. The winch is provided with the retarder with the large heat absorption capacity, so that the self-rotating energy of the system after butt joint can be absorbed,and that the spacecraft is guaranteed to quickly move outwards. By utilizing the winch, the system has an uplink method, so that a high centrifugal force stage of an uplink process of the spacecraftis short, and the comfort is high.