98results about How to "Increase draft" patented technology

A core spun yarn comprising a bi-component polyester filament and an elastomeric fiber. The polyester filament has a denier from about 20 to about 150 and the elastomeric fiber has a denier from 20 to 140. The polyester filament is about 2 weight percent to about 60 weight percent, based on total weight of the yarn and the elastomeric fiber is from about 1 percent to about 40 percent, based on total weight of the yarn. The elastomeric fiber may have higher draft than the bi-component polyester fiber. The polyester filament comprises poly (trimethylene terephthalate) and at least one polymer selected from the group consisting of poly (ethylene terephthalate) and poly (tetramethylene terephthalate) and said elastomeric fiber is spandex. The yarn may include a sheath of at least one staple fiber. The disclosure also includes a fabric of the bi-component polyester filament and an elastomeric fiber.

A ceiling embedded type air conditioner that reduces short circuits without increasing drafts due to air currents blown out from outlets includes a casing and a fan. The casing includes a casing lower part formed by an alternating sequence of four panel side parts and four panel corner parts. The casing further includes four main outlet passageways along the panel side parts auxiliary outlet passageways in the three panel corner parts and an inlet so that is surrounded by all of the panel side parts. The auxiliary outlet passageways are formed so that the spacing between each auxiliary outlet passageways and a corresponding adjacent main outlet passageways satisfies a prescribed dimensional relationship.

A blade for use in a wind turbine comprises a pressure side and suction side meeting at a trailing edge and leading edge. The pressure side and suction side provide lift to the turbine blade upon the flow of air from the leading edge to the trailing edge and over the pressure side and suction side. The blade includes one or more openings at the suction side, in some cases between the leading edge and the trailing edge. The one or more openings are configured to provide a pressurized fluid towards the leading edge of the blade, in some cases at an angle between about 0° and 70° with respect to an axis oriented from a centerline of the blade toward the leading edge.

A novel roof vent in accordance with the present invention, utilizes a vent pipe communicating with a shroud, where the shroud compatibly fits over a ridge vent on a roof. The vent pipe is extended above the roof, sufficiently so as to rise above the anticipated level of snow load that may be experienced in the locale of the application. The roof vent of the preferred embodiment includes an apron that adjustably fits the roof pitch of the installation and further includes a ridge vent cutout for compatibly fitting over the ridge vent. In one version of the present invention, cosmetic dress may be used to allow the roof vent to blend with architectural requirements without impacting the functionality of the roof vent operation.

The invention relates to a method for preparing CNT (carbon nano tube)-polyacrylonitrile fibre by melting spinning. The method comprises the following steps of: (1) dispersing CNT in ion liquid, adding polyacrylonitrile and mixing uniformly to obtain a mixed solution, wherein the mass ratio of CNT to polyacrylonitrile is 4:1-1:10, the ratio of the total mass of CNT and polyacrylonitrile to the mass of the ion liquid is 1:1-1:100; (2) processing the mixed solution by using a melting spinning method to obtain CNT-polyacrylonitrile as-spun fibre, stretching and extracting the as-spun fibre, and then performing heat setting and winding to finally obtain CNT-polyacrylonitrile composite fibre. The method provided by the invention has the advantages of low cost, reduction in environmental pollution and is suitable for industrial production; and the prepared fibre can be subjected to high stretching and has excellent mechanical property, moreover the skin-core structure difference of sections of fibre is small.

The invention provides a floating-type wave energy utilization device with strong fault tolerance and high efficiency, comprising a duck body floating on the water surface; the duck body is composed of a duck body casing and a central shaft; the duck tail is of a circular arc shape; the shaft center of the central shaft is arranged in the center of the circular arc; the part of the duck head against the wave has a larger volume; an underwater appendage which is fixedly connected with the central shaft and hangs below the duck body is installed below the duck body; a cystic pump serving as an energy switching mechanism is installed inside the duck body; the cystic pump is a closed flexible water sac which is internally injected with liquid, retained with folds and can be stretchable; the water sac is fixed on the central shaft in the duck body and the cystic pump is connected with a cystic piston through a water pipe; the upper end of the cystic piston is connected with the energy switching mechanism; the cystic pump and the cystic piston are not completely filled with liquid; and the underwater appendage is connected with the seabed through an energy storage type mooring system. The invention has low requirement on installation precision, strong fault tolerance, low cost, simple and easily realized installation and simple placement, thus being hopeful to be a floating-type wave energy generating device applied in large scale.

The invention provides a hovercraft with a flowing ballasting structure that can automatically adjust a draft, and the hovercraft comprises: hull side walls formed by disposing wall body structures on the left and the right, wherein the wall body strucure is formed by disposing and combining space blocks from up to down and the space block contains a sealed space part for storing air interiorly; a bottom plate formed by mutually connecting the lower ends of the left and the right hull side walls; a ballast tank formed by the downward extension of the bottom plate and having a sealed space forfilling ballast water surrounded by the ballasting side wall body and the ballasting bottom plate; a hull lower side part which has a curve shape formed by the downward extension of the lower end part of the hull side walls and is open at the side facing the inner side of the hull; a diaphragm plate which connects the side part of the lower end of the hull and the ballasting side wall body, and forms several air pressure chambers which are open at the lower part and communicate with the the side part of the lower end of the hull; and a draft adjusting calandria with one end extending to the space part in the space block and the other end connected to an exterior air compressor, and with a draft adjusting valve disposed to control the supply or the exhaust of the compressed air.

The invention belongs to the technical field of carpet yarn processing, and in particular relates to special-shaped hollow PTT (polytrimethylene terephthalate) bulked yarn and a preparation method thereof, wherein the special-shaped hollow PTT bulked yarn comprises a carpet yarn body which is special-shaped hollow bulked yarn formed by PPT fiber after bulked deformation and processing; the linear density of the carpet yarn body is 1000dtex-2000dtex; and the single fiber of the special-shaped hollow bulked yarn has the cross sections of a three-leaf triangular outer ring and a triangular inner hole. The preparation method is that a spinneret plate with special-shaped spinneret holes is adopted, and the preparation is completed on a BCF (bulked continuous filament) spinning machine by a one-step method. The fiber hollow degree is 13%-18%, the carpet yarn with the same effect is prepared, the cost is lowered by more than 13%, and the special-shaped hollow PTT bulked yarn has favorable beneficial effects. By adopting the method, the preparation is completed by one step without increasing the spinning expense by utilizing the original spinning machine under the specific spinning condition, and the preparation method is simple, economic and practical.

An agricultural implement has front flotation wheels with a significantly increased diameter, increasing flotation and improving rolling characteristics, especially in soft soil conditions. The implement has a frame supported on front and rear wheels. Front flotation wheels are pivotally mounted to the frame about vertical axes. A hitch tongue is pivotally attached to the frame about a vertical hitch pivot axis. A wheel control mechanism connects the front flotation wheels to the hitch tongue, and is configured such that when the hitch tongue is in a neutral position the front flotation wheels roll in the operating direction, and pivoting the hitch tongue causes the front flotation wheels to pivot in the same direction.

The invention provides an inclined upright truss type semi-submersible oil production platform, which is used for offshore oil production. The platform is characterized by comprising a platform deck, at least three inclined uprights, an annual floating tank, a space truss structure and at least one heaving board. The platform deck is arranged above the waterline plane horizontally; the at least three inclined uprights are uniformly distributed below the platform deck, and are inclined towards the normal axis of the geometric center of the platform deck, the upper ends of the inclined uprights are fixedly connected to the platform deck and the lower ends of the inclined uprights extend to a position below the waterline plane; the annual floating tank is arranged below the waterline plane and fixedly connected to the lower ends of the inclined uprights; the upper ends of the space truss structure is fixedly connected with the annual floating tank to form a whole body; the at least one heaving board is horizontally arranged in the space truss structure.

The invention relates to a novel semi-continuous high-speed spinning machine which comprises a rack, a glue supply device, a filament strip forming device, a spinning device and a winding device. The spinning device comprises a spinning roller which is transversely arranged relative to the operating surface of a spinning face, and the two ends of the spinning roller are fixed on the rack. The novel semi-continuous high-speed spinning machine improves spinning speed, ensures that filament strips are sufficiently reacted, and then achieves the purposes of ensuring the quality of the filament strips, improving production efficiency and reducing spinning cost.

The invention relates to a high-speed ship on the basis of double inclinable screw propellers, and belongs to the technical field of ship propulsion. The double inclinable screw propellers are symmetrically distributed on the middle upper portion of the high-speed ship and can be reasonably inclined at certain angles, so that propulsion force has upward component force and component force in an advancing direction. The upward component force overcomes a part of the gravity of the high-speed ship, the immersion depth of the ship is reduced, and the resistance on the ship is decreased; and the component force in the advancing direction pushes the ship to advance. A tail fin screw propeller is arranged at the tail of the ship, the inclination position of the tail fin screw propeller can be changed, and the tail fin screw propeller can be matched with the front double screw propellers in an equilibrium manner, so that the ship can run stably. The high-speed ship overcomes shortcomings of poor stability of equilibrium of a common high-speed ship and poor mobility of the common high-speed ship, and has the advantages of capability of running at a high speed, excellent mobility and stability of equilibrium, and the like. Besides, the high-speed ship is low in cost and has popularization value.

The invention discloses a moving air conditioner, which comprises a base plate and a water fetching wheel, wherein a water fetching tank is arranged in the base plate, the water fetching wheel is at least partially arranged in the water fetching tank; an overflow part for limiting the water height is arranged on the water fetching tank so as to maintain the water fetching wheel at the pre-set depth of immersion. According to the moving air conditioner, the depth of immersion of the water fetching wheel can be limited, and the water fetching noise of the moving air conditioner can be lowered.

A novel roof vent in accordance with the present invention, utilizes a vent pipe communicating with a shroud, where the shroud compatibly fits over a ridge vent or a penetration on a roof. The vent pipe is extended above the roof, sufficiently so as to rise above the anticipated level of snow load that may be experienced in the locale of the application. The roof vent of the preferred embodiment includes trim panels that adjustably fits the roof pitch of the installation. In one version of the present invention, cosmetic dress may be used to allow the roof vent to blend with architectural requirements without impacting the functionality of the roof vent operation.

The invention relates to a silk drafting/drying device which comprises at least one pair of matched heat plates used for drying silk flock and a plurality of independently-driven drafting rollers used for drafting the silk flock. The drafting rollers are arranged at the interval position of the matched heat plates, the drafting rollers are of cylinder structures and divided into an upper row of drafting rollers and a lower row of drafting rollers, the two rows of drafting rollers are distributed in parallel and in a staggered mode, the pair of heat plates are the upper heat plate and the lower heat plate, rectangular teeth are arranged on each heat plate, and the rectangular teeth of the upper heat plate are staggered and meshed with the rectangular teeth of the lower heat plate. According to the silk drafting/drying device, a multi-roller drafting machine and a drafting hot box are integrally combined, and the equipment construction cost and the equipment occupancy are reduced. By means of liquid heat media, the defect that caloric content in heated air circulation is low is overcome, the interference to the silk flock is reduced, the temperature is even and stable, the steam concentration is improved, the drafting/drying efficiency and effect are improved, and the recycling load and the energy consumption are effectively reduced. According to need, the silk drafting/dry device can be used for drafting silk, can be used for drying silk and can achieve the purpose of drafting silk in a drying process. Furthermore, a plurality of silk draft/drying devices can be combined to be used.

The invention discloses a multifunctional ocean water area environment monitoring device, and relates to the technical field of ocean water area environment monitoring devices. The multifunctional ocean water area environment monitoring device comprises a floating platform, the top of the floating platform is provided with three lower bottom plates, the tops of the three lower bottom plates are fixedly connected with upper bottom plates, the tops of the three upper bottom plates are fixedly connected with lower supporting pipes, the three lower supporting pipes are movably connected with the same tower, the tower is sequentially provided with a first layer plate and a second layer plate from bottom to top, the first layer plate is fixedly connected with a control box, and the second layer plate is fixedly connected with a microwave radar, a wind direction and wind speed sensor and a signal transceiver; the top of the floating platform is fixedly connected with a lifting unit used for lifting the tower. The multifunctional ocean water area environment monitoring device is reasonable in structure, the gravity center of the monitoring device is lowered, in extreme weather, shaking is reduced, the stability is improved, the height is increased, the monitoring range of the monitoring device is widened, the accuracy of monitored data is improved, and various monitoring of the marine environment is achieved.

The invention discloses a semi-submersible type floating foundation for offshore wind power generation and cage culture. The semi-submersible type floating foundation comprises stand column units, transverse supporting assemblies, a truss structure and a culture cage, wherein the stand column unit comprises a heaving plate and a stand column, and the stand column is arranged on the heaving plate and filled with concrete; the transverse supporting assembly comprises a first transverse supporting rod and a second transverse supporting rod, the first transverse supporting rod is connected with the two adjacent heaving plates, the second transverse supporting rod is connected with the two adjacent stand columns, and the first transverse supporting rod and the second transverse supporting rod are both filled with concrete; and the truss structure is connected between the first transverse supporting rod and the second transverse supporting rod, a culture space is defined by the stand column units, the transverse supporting assemblies and the truss structure, and the culture cage is installed in the culture space. According to the semi-submersible floating foundation for offshore wind power generation and cage culture, the steel-concrete structure is used as fixed ballast, so that the draft of the floating foundation is increased, the steel consumption of the overall structure is reduced, meanwhile, the rigidity and strength of the local structure are enhanced, the material use cost is reduced, and the income is increased.

The invention discloses a platform moon pool damping device which comprises a shock absorption cabin and a shake absorption cabin which are arranged on the transverse inner walls at the two ends of a moon pool and separated through a watertight separation board. Multiple rows of damping blocks distributed in a staggered manner are transversely arranged on the outer wall of the shock absorption cabin and the outer wall of the lower portion of the shake absorption cabin respectively. Multiple wave stop columns are arranged on the outer wall of the lower portion of the shake absorption cabin. Three separation boards are arranged in the shake absorption cabin from top to bottom. Multiple rows of vertical wave elimination blocks horizontally distributed in a staggered manner are transversely arranged on the upper sides and the lower sides of the separation boards and the inner wall of the shake absorption cabin bottom. The separation boards are provided with vertically-corresponding wedge blocks towards the outer end of the platform moon pool. Multiple rectangular openings are formed in the shock absorption cabin outer wall and a vertical wall board of the shock absorption cabin respectively. Multiple rows of horizontal wave elimination blocks vertically distributed in a staggered manner are transversely arranged on the inner walls of the two longitudinal ends and a vertical wall board of the moon pool. The shock absorption cabin and the shake absorption cabin can guarantee that a platform works safely and stably under different working conditions. The wave stop columns arranged on the outer wall of the lower portion of the shake absorption cabin can effectively resist incoming flow impact, the kinetic energy of waves is weakened, incoming flow is inducted to move towards the bottom of the moon pool, and formed vortexes in the moon pool are reduced.