90results about How to "High pressure level" patented technology

Methods and devices to remove thromboembolic material from the human body using rotational energy and aspiration are disclosed. A thromboembolic removal system includes an extraction device and drive unit. The extraction device is introduced to the treatment area and activated by the drive unit to separate, break apart, loosen or soften thromboembolic material and to facilitate its aspiration outside the patient.

A method for increasing the resolution when forming a three-dimensional article through successive fusion of parts of a powder bed, said method comprising providing a vacuum chamber, providing an electron gun, providing a first powder layer on a work table inside said vacuum chamber, directing an electron beam from said electron gun over said work table causing the powder layer to fuse in selected locations to form a first cross section of said three-dimensional article, providing a second powder layer on said work table, directing the electron beam over said work table causing said second powder layer to fuse in selected locations to form a second cross section of said three-dimensional article, reducing the pressure in the vacuum chamber from a first pressure level to a second pressure level between the providing of said first powder layer and said second powder layer.

The invention discloses a radial-flow type fluidic pressure wave supercharger, which can realize the energy exchange between the high pressure gas and the low pressure gas by running the pressure wave, avoid loss of mixed and diffused energy and has the advantages of high isentropic efficiency, low rotating speed, operability with liquid, sufficient exhaust and on the like. For adopting a pressure oscillating tube channel with variable rectangular cross-section, the incidence loss and the flowing loss of the jet flow are reduced; the channel is a bending flow channel arranged along the radial radiation, the process of expanding and compressing is strengthened and the sufficient discharge of the compressed gas is accelerated by using the centrifugal force; pressure balancing holes are arranged in the machine, so that the performance is kept balanced at the different pressure ratios; a pressure expanding flow guider is arranged at a compressed gas outlet in order to transform the dynamic energy of the gas flow effectively. The radial-flow type fluidic pressure wave supercharger can fully utilize the pressure energy in the production process and the pressure energy in the stratums of natural gas, thereby providing an efficient device selection for utilizing the pressure energy sources effectively.

Methods and devices to remove thromboembolic material from the human body using rotational energy and aspiration are disclosed. A thromboembolic removal system includes an extraction device and drive unit. The extraction device is introduced to the treatment area and activated by the drive unit to separate, break apart, loosen or soften thromboembolic material and to facilitate its aspiration outside the patient.

The invention provides a fiber-reinforced polypropylene material and an application of pipelines made from the fiber-reinforced polypropylene material. The fiber-reinforced polypropylene material is characterized by comprising polypropylene resin, fiber, crystal whisker, an inorganic particle, elastomer, a lubricant, an antioxidant and a coupling agent, wherein the fiber is one or more of glass fiber, carbon fiber and basalt fiber; the crystal whisker is one or more of silicon carbide crystal whisker, potassium titanate crystal whisker and aluminum oxide crystal whisker; the organic particle is one or more of SEBS (Styrene-Ethylene-Butylene-Styrene), POE (polyolefin elastomer), EVA (Ethylene / vinyl acetate) and EPDM (Ethylene-Propylene-Diene Monomer); the lubricant is one or more of calcium stearate, zinc stearate, stearic acid and a lubricant TAF; the antioxidant is hindered phenol antioxidant 1010; the coupling agent is one of a silane coupling agent, a titanate coupling agent and an aluminic acid ester coupling. The fiber-reinforced polypropylene material has the advantages of high-pressure resistance, high-temperature resistance, high corrosion resistance, high stretch resistance, high impact resistance, low coefficient of linear expansion, moderate heat conductivity coefficient, long service life and the like.

Methods and devices to remove thromboembolic material from the human body using rotational energy and aspiration are disclosed. A thromboembolic removal system includes an extraction device and drive unit. The extraction device is introduced to the treatment area and activated by the drive unit to separate, break apart, loosen or soften thromboembolic material and to facilitate its aspiration outside the patient.

Embodiments in accordance with the present invention relate to packed-column nano-liquid chromatography (nano-LC) systems integrated on-chip, and methods for producing and using same. The microfabricated chip includes a column, frits / filters, an injector, and a detector, fabricated in a process compatible with those conventionally utilized to form integrated circuits. The column can be packed with supports for various different stationary phases to allow performance of different forms of nano-LC, including but not limited to reversed-phase, normal-phase, adsorption, size-exclusion, affinity, and ion chromatography. A cross-channel injector injects a nanolitre / picolitre-volume sample plug at the column inlet. An electrochemical / conductivity sensor integrated at the column outlet measures separation signals. A self-aligned channel-strengthening technique increases pressure rating of the microfluidic system, allowing it to withstand the high pressure normally used in high performance liquid chromatography (HPLC). On-chip sample injection, separation, and detection of mixture of anions in water is successfully demonstrated using ion-exchange nano-LC.

An axial-flow type jet flow gas wave pressure supercharger relies on operation of pressure wave to achieve energy exchange between high-pressure gas and low-pressure gas, avoids mixed diffusion energy loss and has the advantages of being high in isentropic efficiency, low in rotation speed, capable of working with fluid and the like. A pressure oscillation tube channel with variable rectangular cross section is adopted to reduce incident loss and flow loss of jet flows. A pressure equalizing port is arranged in the pressure supercharger so that performance of different pressure ratios is balanced. A pressure expansion fluid director is arranged at the position of a compression fluid outlet to effectively convert air flow kinetic energy. The axial-flow type jet flow gas wave pressure supercharger can fully utilize pressure energy in the production process and stratal pressure energy such as natural gas and can serve as an efficient device for effectively utilizing the pressure energy.

A flame resistant hose having a nitrile-containing rubber inner tube layer; two reinforcing plies one or more insulating plies of rubberized fiberglass unidirectional cord fabric helically wrapped at a helix angle in the range of 40-60 degrees with respect to the hose longitudinal axis and with the edges of each reinforcing ply overlapping up to about 0.5 inches; an optional rubber cushion or tie layer between the reinforcing plies and the insulating plies; and a polychloroprene rubber outer cover layer. The hose may have one or more helical wires embedded in the hose such as between the two reinforcing layers. The hose successfully passes fire resistance testing when tested according to BS ISO 15540:1999 incorporating amendment number 1.

A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the base portion 12; and an elongate reinforcing strip 30 extending lengthwise and supported laterally by the rib portion 20, the reinforcing strip 30 having a height to thickness ratio of at least three to one and orientated substantially perpendicular to the base portion 12. When wound into a helical pipe, the reinforcing strip 30 reinforces the pipe against radial crushing loads. A bead 40 seals the reinforcing strip 30 from the environment. Desirably the composite strip 10 further comprises: a planar lamina 50 extending lengthwise and bonded to the base portion 12, the lamina 50 having a higher Young's modulus and strength than those of the plastic strip 11. The lamina 50 greatly improves the pressure rating of a pipe wound from the strip 10.

Some embodiments of the present application provide a signal transmitting and receiving method, a processor chip, an active pen, and a touch screen. The signal transmission method includes: obtainingcharacterizing pressure information and a code for detecting the position of the pen tip according to the detected pressure information, wherein the encoding includes n encoding bits, where n is an integer greater than 1 (101); generating n coded signals (102) corresponding to n coded bits; transmitting each coded signal of the n coded signals at a preset first frequency, a preset second frequency, or a transmission prohibited manner, wherein the first frequency, the second frequency of the n coded signals, and the prohibited transmission are related to pressure information (103); with the above solution, the active pen can output more coordinates of the nib position in unit time, and the touch screen can detect more coordinates of the nib position in unit time, which improves the reporting rate.

The invention discloses a balanced type double-row large-displacement axial plunger pump which comprises a swash plate, a cylinder body, a plunger pair, a valve plate, rotating plates and a driving shaft. The cylinder body is provided with two rows of concentric-circle cross-distributed holes, kidney-shaped holes of the holes incline towards the driving shaft, the kidney-shaped holes and the driving shaft cross by a certain angle to form a centrifugal oil shedding structure, and the self-suction capacity of the pump and the pump revolution speed allowable value are improved; the swash plate comprises two slopes which cross to for an X shape, the cross line passes through the center of a spline of the driving shaft, capsizing moment of reactive force of the swash plate on the cylinder body is reduced, the suspension length of the plungers is reduced, the stress condition of the cylinder body and the plungers is improved, and improvement of pressure rating of the pump is facilitated. The rotating plates are arranged on the two slopes, and abrasion of piston shoes and the swash plate is reduced.

A blow box (18) for supporting the web run in a paper machine or the like, which blow box comprises members for maintaining a negative pressure at least in one negative pressure region (24) between the wire (20) and the blow box. The members comprise a blocking member (30, 32), which is arranged, regarding the wire's running direction, at the beginning and / or at the end of said negative pressure region, which extends across the wire and projects towards the wire, and which is movable in relation to the blow box, and blowing members (34, 36), with which air is ejected with blows between said blocking member and the wire from said negative pressure region and / or with which air is prevented from entering this negative pressure region. The blocking member is connected to the blow box by a hinge member (40, 42), which allows the blocking member to rotate around the articulation point of the hinge member due to the pressure difference between the pressure acting on the blocking member's blocking surface (30′, 32′) directed towards the wire and the pressure acting on the blocking member's back surface (50, 50′) directed away from the wire.

A hydraulic control system for preventing shortage of lubricant and coolant during charging of an accumulator is disclosed. The hydraulic control system is comprised of: a hydraulic pump; an accumulator for storing fluid from the pump; and a constant delivery site which is connected to the pump in parallel with the accumulator, and which requires hydraulic fluid constantly during activation of the hydraulic pump. A pressure level of the fluid discharged from the pump is regulated to a level possible to be delivered to the accumulator, and the fluid resulting from the pressure regulation is delivered to the constant delivery site. Meanwhile, a pressure higher than that required by the constant delivery site is stored in the accumulator. The hydraulic control system is characterized by a fluid increasing means that delivers additional fluid to the constant delivery site together with the fluid resulting from said pressure regulation, when delivering the fluid discharged from the pump to the accumulator.

The invention relates to a piece of hardware capable of controlling functions of computer handwriting and drawing, a mouse, a game pad and 3D software. The invention can only comprises a pen-shaped input device which is capable of writing on surfaces of most objects, thereby being free from limitation of application range and capable of distinguishing the inclination of a rod part. The invention consists of an end part, a head part and a rod part, wherein the end part is the bottom of the head part and is in constant contact with the surface of the objects; the rod part consists of a first rod and a second rod; the head part is connected with the second rod through an inclined swaying connector. The first rod and the second rod can do free relative motion along a fixed curve; the head part stays on the surfaces of the objects and does not moves up as he first rod lifts as a pen, but is driven by the rod part to move on the surfaces of the objects; X, Y axis detectors can detect the movement. The rod part can incline to sway relative to the head part. The relative motions between the first rod and the second rod as well as between the second rod and the head part both can be detected by the detectors.

A heat transfer plate comprising a first port opening and a second port opening for allowing a first fluid to flow over a top surface of the heat transfer plate, a first side opening and an opposite, second side opening for allowing a second fluid to flow over a bottom surface of the heat transfer plate, a number of rows of alternating tops and grooves that extend along the heat transfer plate, where a transition between a top and an adjacent groove is formed by an inclined portion, and plate portions that extend along the heat transfer plate, between the rows of tops and grooves, thereby forming flow channels between the rows of tops and grooves.

A debridement device having a controllable Lorentz-force actuator is disclosed. The debridement device includes a nozzle delivering a jet of debridement substance to a tissue and the jet is driven by the Lorentz-force actuator. The device may have a suction port for removing the debridement substance. A second Lorentz-force actuator can be used for each of the jet and suction. The first and second Lorentz-force actuators for the jet and suction can also be configured to provide for continuous jet injection and continuous suction. The device may include a second nozzle delivering a second jet of debridement substance to the region of tissue and the first and second jets may intersect and dissipate into a mist upon intersection to dissipate the kinetic energy of the jets. The Lorentz-force actuator may drive a reciprocating piston pump providing continuous pressure to the nozzles.

An air conditioning device includes a main refrigerant circuit and a discharge-intake bypass circuit. The refrigerant circuit is operable in a heating mode and a positive cycle defrosting mode. it is possible for refrigerant to bypass from a discharge side to an intake side of the compressor when the refrigerant circuit is operating in the heating mode. The refrigerant circuit is operable in a positive cycle defrosting mode. When the refrigerant circuit is operating in the positive cycle defrosting mode, a superheat valve of the discharge-intake bypass circuit is opened and the refrigerant is caused to bypass from the discharge side to the intake side of the compressor through the bypass circuit and a defrosting-mode main valve high-pressure control is performed to adjust a valve opening of a main valve so that a high pressure level of a refrigerating cycle in the refrigerant circuit reaches a target high pressure.

The invention relates to an airplane hydraulic system layout based on a power-by-wire energy storage device. The layout comprises spoiler flap accumulators used for driving spoiler steering engines and flap steering engines, cabin door accumulators used for driving cabin door actuators, and empennage accumulators used for driving rudder steering engines and elevating rudder steering engines, wherein the spoiler flap accumulators, the cabin door accumulators and the empennage accumulators are all connected with a fly-by-wire operation system of an airplane and used for storing energy or acting based on output commands of the fly-by-wire operation system. By the adoption of the airplane hydraulic system layout based on the power-by-wire energy storage device, the installed power of the airplane can be reduced.

The invention discloses an air kinetic energy ejection launcher for a spacecraft. The air kinetic energy ejection launcher for the spacecraft comprises an air inflation mechanism and a high pressure air spherical tank. The air inflation mechanism is communicated with the high pressure air spherical tank and used for providing vaporized gas for the high pressure air spherical tank, a blind plate cover with the gear shaped inner edge is installed on the opening in the top of the high pressure air spherical tank, a blind plate with the gear shaped outer edge is installed in the blind plate cover, the blind plate cover is connected with an electromagnetic drive device, after the electromagnetic drive device detects that the gas in the high pressure air spherical tank reaches the preset value, an operator operates the electromagnetic drive device to drive the blind plate cover to rotate by one gear, an ejection guide rail is also arranged on the upper end of the blind plate cover, the track cross-section shape of the ejection guide rail is matched with the shape of the blind plate, so that the blind plate can conduct ejection movements in the ejection guide rail under the push of the air pressure, the extending part of the upper end of the ejection guide rail is provided with a guide cylinder, and the spacecraft is installed above the blind plate. The device can reduce more than 90% of the void volume and launch weight, the launch speed of the spacecraft can be higher than 30,000-300,000 m / s, and the cost is low.

A multifunctional gasket with compression and rotation control comprises annular sealing element(s) with specific stiffness, geometry, tightness and compressibility properties and uniquely shaped compression element(s) with variable thickness and specific mechanical properties. The gasket is designed to seal under static and dynamic fluid pressure loading for a wide range of sizes and with severe thermal differential temperatures and static and dynamic external loads. This gasket is able to significantly increase the pressure rating for leakage, ability to resist external forces and moments, resistance to thermal differentials and operating reliability of flanges in accordance with published standards, as well as enable the more efficient design of special flanges for demanding operating conditions. The gasket design also allows for easier, faster and more uniform assembly of the joint.

The invention discloses a totally-enclosed high-voltage resistant magnetomotive multi-ball injector which comprises a shell, a union plug, a stepping motor, a strong magnetic driving rotor, a lead screw, a driven rotor, a ball selecting rod and two ball barrels, wherein the lower end of the shell is arranged on a fracture wellhead through a lower joint; two protruded limiting keys are symmetrically arranged on the wall of an inner cavity of the shell; the outer wall of the ball selecting rod is respectively and vertically provided with two through long grooves through which the corresponding limiting keys are inserted; openings in the upper ends of the two ball barrels are respectively sealed by a ball barrel end cover, and openings in the lower ends of the two ball barrels are respectively plugged by the ball selecting rod. The totally-enclosed high-voltage resistant magnetomotive multi-ball injection is high in voltage resistant level, strong in sealing reliability, capable of realizing loading ball injection under voltage without stopping a pump in the working process, large in online ball injection quantity, simple to operate, high in ball injection reliability, capable of improving the ball injection precision, small in size, convenient to carry and mount, capable of realizing remote control, away from a high voltage area and safe to operate.

The invention relates to an airplane hydraulic system layout based on hydraulic boosting and energy storing devices. The airplane hydraulic system layout comprises a spoiler and aileron energy storing device, a cabin door energy storing device and an empennage energy storing device, wherein the spoiler and aileron energy storing device is used for driving a spoiler steering engine and an aileron steering engine; the cabin door energy storing device is used for driving a cabin door actuator; the empennage energy storing device is used for respectively driving a rudder steering engine and an elevator steering engine; and the spoiler and aileron energy storing device, the cabin door energy storing device and the empennage energy storage device are connected with an engine driving pump, and are used for receiving oil pressure input from the engine driving pump. By the airplane hydraulic system layout based on the hydraulic boosting and energy storing devices, installed power of an airplane can be reduced.

The invention relates to a floating ball valve dedicated to high-pressure steam and belongs to the technical field of valves. The floating ball valve dedicated to high-pressure steam comprises a valve body, a ball and a valve rod. A first metal valve seat is arranged on one side of a medium inlet end of the valve body, and a second metal valve seat is arranged on one side of the outlet end. The first metal valve seat and the second metal valve seat are attached to the ball to form a metal seal pair. A valve seat compression ring is arranged outside the first metal valve seat, and a disc spring is arranged between the valve seat compression ring and the first metal valve seat. Seal pre-tightening pressure can be set by adjusting compression force of the disc spring. The floating ball valve dedicated to high-pressure steam is good in seal property, low in leakage rate, outstanding in abrasion resistance, convenient to assemble and disassemble, and applicable to working conditions with high working pressure and bad working conditions; besides, for the current situation the current situation that the leakage rate of steam valves in China is high and medium-and-low-pressure steam valves are dominated in China, the floating ball valve can well make up the gap.

The invention relates to an airplane hydraulic system layout based on hydraulic and power-by-wire boosting and energy storing devices. The airplane hydraulic system layout based on the hydraulic and power-by-wire boosting and energy storing devices comprises a spoiler and aileron energy storing device, a cabin door energy storing device and an empennage energy storing device, wherein the spoiler and aileron energy storing device is used for driving a spoiler steering engine and an aileron steering engine; the cabin door energy storing device is used for driving a cabin door actuator; the empennage energy storing device is used for respectively driving a rudder steering engine and an elevator steering engine; the spoiler and aileron energy storing device and the cabin door energy storing device are connected with an engine driving pump, and are used for receiving oil pressure input from the engine driving pump; and the empennage energy storing device is connected with a power-by-wire control system of an airplane, and is used for storing energy or actuating on the basis of an output instruction of the power-by-wire control system. By the airplane hydraulic system layout based on the hydraulic and power-by-wire boosting and energy storing devices, installed power of the airplane can be reduced.

Some embodiments of the invention provide a signal transmitting and receiving method, a processor chip, an active pen and a touch screen. The signal transmitting method comprises: obtaining, accordingto detected pressure information, a code representing the pressure information and pen point position detection, the code comprising n code bits, n being an integer greater than 1 (101); generating ncoding signals corresponding to the n code bits (102); transmitting each coding signal in the n coding signals at a preset first frequency or a preset second frequency, wherein the first frequenciesand the second frequencies of the n coding signals are related to the pressure information (103). By the adoption of the scheme, the active pen can output more coordinates of the pen point position inunit time, the touch screen can detect more coordinates of the pen point position in unit time, and the point reporting rate is increased.