70results about How to "Increased pressure range" patented technology

Swage end-connector for high pressure reinforced flexible hose particularly suitable in the petrochemical and drilling industries for hoses. Two connectors are disclosed one for intermediate hose pressure burst ratings up to 12,500 psi and internal diameters up to 3½ inches and higher hose pressure burst ratings up to 18,750 psi and internal diameters up to 4 inches. Both embodiment connectors will withstand the rated burst pressure of the hose to which they are connected and will withstand a pump-off force that exceeds the burst pressure of the hose. That is, the hose will fail before the connector pops off the hose.

A rolling diaphragm pump includes a housing, a rolling seal diaphragm disposed in the housing, a piston for driving the diaphragm, and a valve for regulating the flow of working fluid in a portion of the housing. A constant differential pressure is maintained across the diaphragm independent of discharge pressure of the pump. A method of pumping a viscous medium includes pumping the viscous medium by maintaining a constant differential pressure across a rolling seal diaphragm independent of discharge pressure of the viscous medium, with the diaphragm disposed between the viscous medium and a working medium and being driven by a piston.

If a hydraulic system has several modes of operation, in particular a mode with a high pressure demand (II) and a mode with a high fluid flow demand (II), the hydraulic fluid pump has to be built with an accordingly high fluid flow output. Such a pump is expensive. Therefore it is suggested, to provide two pumps. I.e. a controllable main pump (2) is provided, which supplies the hydraulic consumer (6) during phases (I) of high pressure demand. During phases (II) of high fluid flow demand, normally, relatively low pressures are sufficient. Therefore, it is suggested to provide a parallel boost pump (9), which supplies the hydraulic consumer (6) in addition to the high pressure pump (2), if a high fluid flow is needed. Excess fluid flow output is avoided by controlling the fluid output flow of main pump 2.

If a hydraulic system has several modes of operation, in particular a mode with a high pressure demand (II) and a mode with a high fluid flow demand (II), the hydraulic fluid pump has to be built with an accordingly high fluid flow output. Such a pump is expensive. Therefore it is suggested, to provide two pumps. I.e. a controllable main pump (2) is provided, which supplies the hydraulic consumer (6) during phases (I) of high pressure demand. During phases (II) of high fluid flow demand, normally, relatively low pressures are sufficient. Therefore, it is suggested to provide a parallel boost pump (9), which supplies the hydraulic consumer (6) in addition to the high pressure pump (2), if a high fluid flow is needed. Excess fluid flow output is avoided by controlling the fluid output flow of main pump 2.

The invention relates to a material testing equipment, in particular, it relates to a hydrogen storage alloy testing equipment. It is formed from reaction chamber, hydrogen gas circulation system and liquor circulation system, in which between reaction chamber and hydrogen gas circulation system a quick joint is used to implement closed connection, the hydrogen gas circulation system can make the hydrogen gas be continuously circulated between the reaction chamber and hydrogen gas circulation system, and said liquid circulation system can make the constant temperature liquids with different temperatures be alternatively circulated between the opened container and oil bath so as to make the hydrogen storage alloy implement alternative circulation of absorbing and releasing hydrogen. In the course of hydrogen gas and liquid circulation the control and data acquisition system can be used for acquiring and processing data, and outputting signal to control system to make test.

The invention relates to a compressed air supply installation (10, 11, 12, 20, 30) for operating a pneumatic installation (90), especially an air suspension installation of a vehicle, comprising a compressed air supply unit (1), a compressed air port (2) towards the pneumatic installation (90), a venting port (3) towards the surroundings, a first pneumatic connection between the compressed air supply (1) and the compressed air port (2), said pneumatic connection having an air drier (61) and a shut-off valve, and a second pneumatic connection between the compressed air port (2) and the venting port (3). According to the invention, the shut-off valve is designed as a pneumatically pilot-controlled check valve (63, 64).

The invention relates to a series-parallel connection comprehensive compensation device for power distribution network low-voltage treatment. The series-parallel connection comprehensive compensation device comprises a series connection compensating module, a parallel connection compensating module, and a controller. The series connection compensating module is disposed in a main loop circuit and is connected with a rapid vacuum switch in the main loop circuit. The parallel connection compensating module is connected with the main loop circuit through a vacuum contactor. The controller is connected with the rapid vacuum switch and the vacuum contactor and is used for controlling the operation of the series connection compensating module and the parallel connection compensating module via the rapid vacuum switch and the vacuum contactor according to the voltage and the load at the tail end of a power distribution network system. Compared with a product in the prior art, the series-parallel connection comprehensive compensation device is simultaneously provided with the series connection compensating module and the parallel connection compensating module, comprehensively controls a series capacitor loop circuit and a parallel capacitor loop circuit according to a system requirement, may change circuit reactance and system reactive power flow, and may absorb harmonic waves so as to greatly enhance the voltage regulating capability and range of a device.

A high voltage subsea electrical penetrator. A first housing part is connectable to a second housing part. The first and second housing parts in connected mode define a seat for accommodation of a bushing including a conductor pin arranged in an insulator body. The first and second housing parts each have a part-spherical seat surface supporting a corresponding region of the bushing. The bushing includes a material of relatively high compressive strength, in the form of a polymeric material or a ceramic material, that is molded into spherical outer shape about a bulbous portion of the conductor pin, and clamped as a unitary form-fitting element in the seat upon connection of the first and second housing parts.

A gas-filling apparatus includes a gas flow passage including an inflow end to which a gas supply source is connectable and an outflow end to which a pressure accumulator is connectable, a compressor, a storage portion, and an operation control portion conducting a first compression filling operation in which a gas supplied from the gas supply source connected to the inflow end is compressed by the compressor to be discharged from the outflow end and a second compression filling operation in which the gas stored in the storage portion is compressed by the compressor to be discharged from the outflow end, the operation control portion conducting the first compression filling operation until a pressure of the gas at the outflow end reaches a predetermined pressure and executing a control for shifting the first compression filling operation to the second compression filling operation when the pressure has reached the predetermined pressure.

The present invention is an oral device comprised of two main components, a U-shaped lower bite plate and a U-shaped upper bite plate, which are molded to fit the front teeth of a wearer with a soft flexible contact surface. The oral device of the present invention comprises an upper bite plate and a lower bite plate each having a generally U-shaped appearance. The upper bite plate removably fits over the upper teeth of a person and the lower bite plate removably fits over the lower teeth of a person. Each bite plate includes a U-shaped buccal side and a U-shaped lingual side connected by a U-shaped top portion. The U-shaped top portion is further comprised of an exposed surface and an attaching surface where the exposed surface is the surface that contacts a penis, clitoris, or other body part while the attaching surface contacts the wearer's teeth.

A high voltage subsea electrical penetrator. A first housing part is connectable to a second housing part. The first and second housing parts in connected mode define a seat for accommodation of a bushing including a conductor pin arranged in an insulator body. The first and second housing parts each have a part-spherical seat surface supporting a corresponding region of the bushing. The bushing includes a material of relatively high compressive strength, in the form of a polymeric material or a ceramic material, that is molded into spherical outer shape about a bulbous portion of the conductor pin, and clamped as a unitary form-fitting element in the seat upon connection of the first and second housing parts.

The invention relates to a single-valve core and double-channel solenoid valve, solving the technical problem that the two channels of the existing solenoid valve can not be easily or synchronously opened and closed, the structure is relatively complex and the weight is heavier. The single-valve core and double-channel solenoid valve comprises a valve body, a valve core and a coil, wherein, the valve core is matched with the valve body for guiding, the valve core generates electromagnetic attraction under the action of the magnetic field of the coil, an axially installed cylindrical spring is arranged between the valve core and the valve body, and a first channel and a second channel which are mutually independent are arranged on the valve body, and the first channel is sealed after a first valve seat is matched with the valve core; the second channel is sealed after a second valve seat is matched with the valve core; and the sealing between the first valve seat and the valve core as well as between the second valve seat and the valve core adopts a combined type soft-hard sealing structure. The invention has the advantages of rapid response, light weight, small volume and good consistency of the action.

Belonging to the technical field of superhard materials, the invention in particular relates to a polycrystalline diamond superhard material with polycrystalline cubic boron nitride as the binder anda preparation method thereof. The superhard material is formed by combination of submicron scale single-crystal cubic boron nitride grains and single-crystal diamond grains, wherein the single-crystalcubic boron nitride grains form polycrystalline cubic boron nitride during sintering, and the polycrystalline cubic boron nitride acts as a binder for bonding with diamond particles together. The polycrystalline diamond superhard material with polycrystalline cubic boron nitride as the binder has both the high hardness of diamond and the inertness of cubic boron nitride to iron family elements. The preparation method is simple, the required temperature and pressure ranges are slightly higher than conventional products, and can be achieved by adjusting the assembly scheme properly, therefore the method is suitable for industrialized production.

The present document relates to a pressure sensor comprising a structural element, the structural element comprising a first and second structural part. The sensor further comprises a first cavity being in fluid connection with an exterior of the sensor for establishing a first pressure which is dependent on an external pressure in the first cavity and a second cavity configured to be at a second pressure in use. A deformable structure is deformable dependent on a pressure difference between the first pressure and the second pressure. The sensor comprises a fiber including an intrinsic fiber optic sensor fixed to the structural element and to the deformable structure for providing an optical sensor signal dependent on said pressure difference.

A gas-filling apparatus includes a gas flow passage including an inflow end to which a gas supply source is connectable and an outflow end to which a pressure accumulator is connectable, a compressor, a storage portion, and an operation control portion conducting a first compression filling operation in which a gas supplied from the gas supply source connected to the inflow end is compressed by the compressor to be discharged from the outflow end and a second compression filling operation in which the gas stored in the storage portion is compressed by the compressor to be discharged from the outflow end, the operation control portion conducting the first compression filling operation until a pressure of the gas at the outflow end reaches a predetermined pressure and executing a control for shifting the first compression filling operation to the second compression filling operation when the pressure has reached the predetermined pressure.

The present invention is an oral device comprised of two main components, a U-shaped lower bite plate and a U-shaped upper bite plate, which are molded to fit the front teeth of a wearer with a soft flexible contact surface. The oral device of the present invention comprises an upper bite plate and a lower bite plate each having a generally U-shaped appearance. The upper bite plate removably fits over the upper teeth of a person and the lower bite plate removably fits over the lower teeth of a person. Each bite plate includes a U-shaped buccal side and a U-shaped lingual side connected by a U-shaped top portion. The U-shaped top portion is further comprised of an exposed surface and an attaching surface where the exposed surface is the surface that contacts a penis, clitoris, or other body part while the attaching surface contacts the wearer's teeth.

The invention provides a pressure regulating valve. The pressure regulating valve comprises a valve body, a rectifier cover, a flow guide screen sleeve and a piston. The valve body is provided with an inlet and an outlet. The rectifier cover is arranged close to the inlet of the valve body and is suitable for guiding influent fluid in a mode of not interfering the fluid flowing into the valve body virtually. A through-flow part of the flow guide screen sleeve is provided with a plurality of through holes extending in the axial direction of the flow guide screen sleeve. The fluid flowing into the valve body from the inlet flows to the downstream side through the through holes and flows out of the valve body from the outlet. The piston can move in the axial direction of the flow guide screen sleeve so as to be jointed with the inner wall of the flow guide screen sleeve, the total area of the through holes through which the fluid flows in the flow guide screen sleeve is controlled by controlling the jointing position of the piston and the inner wall of the flow guide screen sleeve, and therefore the pressure regulating function is achieved. The pressure regulating valve can greatly improve flow and enable the pressure regulating range to be large, and is high in pressure regulating accuracy and low in noise.

The invention discloses an optical fiber micro-optical-electro-mechanical system ultrasonic sensor with a composite film structure and a manufacturing method thereof. The composite film comprises a silicon nitride film and a silicon oxide film, the silicon oxide film grows on the upper surface of the silicon nitride film, and due to the difference of planar structures of the two films, the residual stress on the surface of the single-layer film can be effectively improved in the compounding process, and the sensitivity to ultrasonic waves is improved. According to the invention, the optical path differences of incident light with different wavelengths can be adjusted, the optical path differences of all wavelengths of broadband incident light can be kept consistent as a whole, stable optical interference can be realized, and the linear range of signal demodulation can be improved. By adopting the composite film structure, the response frequency range and the sound pressure intensity pressure bearing range of a sensitive diaphragm are improved, and the sensitive diaphragm can be applied to ultrasonic detection with wide bandwidth and high pressure intensity.

The invention relates to the technical field of valve detection, and in particular, relates to valve detection equipment and a use method thereof. The valve detection equipment comprises a base table, a smoothness detection assembly, a pressure testing assembly, a fixing assembly and a supporting table, a first hydraulic cylinder is used for driving, the height of a pressing block is adjusted, and the pressing block can slowly extrude a valve; the pressure resistance degree of the valve is obtained by extruding the valve, clamping teeth are arranged at the bottom end of the pressing block, the clamping teeth can protect the valve, the valve does not slide under the pressing block, meanwhile, valve fragments can be prevented from splashing, and thus the use safety of the valve detection equipment is improved; through matching of the clamping teeth and slotted holes, the pressing block can be better close to the supporting table, so that the valve can be better extruded, the pressure application range of the pressure test of the equipment is expanded, and the application range of the equipment is further expanded.

The invention relates to a design method of a high tension coil of a dry on-load coarse and fine voltage regulation transformer, at least comprising normal turn number zones (1, 4) of a high tension coil and an air passage (5). The invention is characterized in that a coarse tuning turn number zone (2) and a fine tuning turn number zone (3) are connected in series between the normal turn number zones (1, 4), and the coarse tuning turn number zone (2) and the fine tuning turn number zone (3) are in forward direction serial connection structure. The coil has strong practicality and high reliability. The method adjusts voltage within a larger range in the mode of combining coarse tuning with the fine tuning.

A method and an arrangement for generating x-ray or EUV radiation are disclosed. Target material is supplied from a container for target material to a jet-forming orifice in an interaction chamber by means of a flexible capillary tubing of considerable length, wherein the orifice is an integral part of the capillary tubing. A jet formed by urging target material through the orifice is made to interact with a beam of energy, thus producing a radiating plasma emitting the desired electromagnetic radiation. The use of a flexible capillary tubing for supplying target material from a source of target material to an orifice, which is integrated with the tubing, within an interaction chamber, in order to form therein a jet of target material for interaction with an energy beam to generate x-ray or EUV radiation, is also disclosed.

A pressure sensor for recording a pressure of a fluid medium in a measuring cell. The pressure sensor includes a sensor housing, at least one first pressure sensor element for measuring a pressure of the medium, and a drive and / or evaluation circuit for outputting a signal indicative of a pressure acting on the first pressure sensor element. The drive and / or evaluation circuit is configured on or in a circuit substrate disposed within the sensor housing. The first pressure sensor element is configured on or in the circuit substrate and is separated from the fluid medium by at least one first separating membrane.

The invention relates to an intelligent insole, a preparation method thereof and a foot pressure monitoring system. The intelligent insole comprises a first circuit board, a filling layer, a sensor and a second circuit board which are stacked in sequence. The first circuit board is provided with a plurality of first welding spots and first wires used for being connected with the first welding spots. The filling layer is provided with a plurality of spaced hollow parts, and at least one first welding spot is arranged at the position, corresponding to each hollow part, of the first circuit board; the sensor comprises a plurality of array units which are arranged at intervals, each array unit is arranged in a hollow part, each array unit comprises a first electrode, a dielectric layer and a second electrode which are stacked in sequence, and the first electrode and the second electrode are made of ionic gel; the second circuit board is provided with a plurality of second welding spots andsecond wires used for being connected with the second welding spots. The intelligent insole is low in elasticity modulus, high in flexibility and high in stability.

The invention aims to solve the technical problem of the technical bottleneck that an existing supercharge of a diamond cubic press is incapable of completely satisfying the supercharging demand, and provides a rotary type ultrahigh pressure supercharger of a synthetic diamond cubic press. The rotary type ultrahigh pressure supercharger comprises a shell and an eccentric shaft penetrating the shell, wherein a power source and an oil supply pump are mounted on the shell, at least four oil distributing valves are uniformly distributed along the periphery of the shell, a plunger is mounted on each oil distributing valve, and a transition ball body is arranged between each plunger and the eccentric shat. The technical bottleneck of an original high pressure pump with a single orbit and two plungers is broken through so as to obtain the technological achievement of a single orbit with multiple plungers such as four plungers, six plungers and eight plungers, the flow range and the pressure range of the rotary type ultrahigh pressure supercharger are improved, and the rotary type ultrahigh pressure supercharger is suitable for various cavity cubic press hosts and other ultrahigh pressure equipment.

The invention discloses a sleeve type automatic control return valve. According to the sleeve type automatic control return valve, a shell of the automatic control return valve is of a three-way structure composed of a valve deck and a valve body. A main path valve cavity communicating with a main path inlet and a main path outlet and a bypass valve cavity connecting the main path inlet and a bypass outlet are formed in the shell. A check valve is installed in the valve body. A main path spring is installed between the check valve and the valve deck. A sleeve is installed in the valve body. Avalve rod is connected with the upper end of a valve cylinder. According to the sleeve type automatic control return valve, an orifice is located in a fixing piece sleeve, a main path check valve is not affected by changes of the flow speed and the flow direction of a medium at the orifice when moving, action is smooth, and stability is high. On the basis of a sleeve type automatic control returnvalve, by adding or modifying internal parts, the functions of no bypass leakage, on-line adjustment, multi-stage pressure reduction, upper guide and the like can be achieved.

The invention relates to a two-stage water spraying screw mainframe, which comprises an air cylinder. The air cylinder is provided with two independent and communicated compression cavities includinga primary compression cavity and a secondary compression cavity. The primary compression cavity is internally provided with an exhaust passage, the secondary compression cavity is internally providedwith an air suction passage, the wall of the air cylinder is provided with a nozzle communicated with an atomizing water cooling mechanism, and the nozzle is positioned between the exhaust passage andthe air suction passage and used for atomizing cooling. A gear box is mounted at air inlet ends of the primary compression cavity and the secondary compression cavity, and a gear mechanism with a spray lubricating effect is arranged in the gear box and connected with a rotor in one of the primary compression cavity and the secondary compression cavity. The two-stage water spraying screw mainframehas advantages that the mainframe integrally adopts a two-stage compression structure and is lubricated through water spraying, and energy saving and environmental friendliness are realized.

In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. When a storage value indicating a current storage amount in the accumulator tank is larger than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or less than the rated rotation speed. When the storage value indicating the current storage amount in the accumulator tank is smaller than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or more than the rated rotation speed and equal to or less than a maximum permissible rotation speed.

The invention discloses a leakage detecting device for ordinary pressure detection of vacuum sampling, and belongs to the technical field of airtightness testing. The device comprises a vacuum box andis characterized in that the vacuum box is communicated with a sampling pipe, the sampling pipe is connected with a sampling mechanism, and the sampling mechanism converts a gas sample taken from thevacuum box into the ordinary pressure state from the vacuum state and provides the to-be-detected gas sample in the ordinary pressure state for a detector. According to the leakage detecting device,the sampling mechanism can convert the gas sample taken from the vacuum box into the ordinary pressure state from the vacuum state, on the one hand, the vacuum box can quickly provide the gas sample of higher concentration only in limited space, the vacuum degree of the vacuum box does not depend on the requirements of the detector, the pressure range of the vacuum box is expanded, and the detecting accuracy grade is increased; on the other hand, an existing helium leakage detecting mode can be broken through, wide detecting mediums of a refrigerant and the like are adopted, and an ordinary pressure detector with higher cost-performance ratio is prepared.

The invention provides a winding device for conductive film production. The winding device comprises a bedplate. A winding assembly is mounted on the upper end surface of the bedplate. The winding assembly comprises a supporting plate, an air cylinder, a first rolling bearing, a movable chuck, a carrier roller, a second rolling bearing, a fixed chuck, a winding drum, an inserting column, a T-shaped groove, a square block, a hexagon socket screw, a servo motor, a limiting strip, a limiting groove, a threaded through hole and a T-shaped block. A pressing and holding assembly is disposed in the middle of the upper end face of the bedplate. The pressing and holding assembly comprises a rubber cushion, a hollow cylinder, a sleeve, a threaded rod, a pressing column, an electromagnet, a permanentmagnet, a straight thread cylinder, a strip-shaped groove and a limiting block. Compared with the prior art, the winding device has the following beneficial effects that the distance between the movable chuck and the fixed chuck can be adjusted conveniently according to the effective stroke of the air cylinder and the size of the winding drum, the application range is enlarged, meanwhile, the model selection range of the air cylinder is expanded, the relative positions of the pressing column and a conductive film on the winding drum are adjusted, and the pressing and holding range is expanded.

The invention discloses a multistage electrolytic cell. The multistage electrolytic cell comprises a support, an electrolytic cell mechanism and a cooling mechanism, the electrolytic cell mechanism comprises a cell body, a liquid inlet and outlet part, an exhaust part, a liquid suck-back part and a cover plate, a plurality of partition plates are arranged in the cell body, the partition plates divide an inner cavity of the cell body into a plurality of electrolytic cells, an electrode plate mechanism, flow guide mechanisms symmetrically arranged at the two ends of the electrode plate mechanismand a locking mechanism for positioning the electrode plate mechanism are arranged in each electrolytic cell, and the cover plate is provided with a plurality of positioning grooves for the electrodeplate mechanisms to be inserted. The device is simple in structure, reasonable in design, low in cost, convenient to install and use and high in material corrosion resistance, the cooling mechanism is arranged to regulate the electrolysis temperature, the flow guide mechanism is arranged to enable the electrolysis rate to be uniform, the locking mechanism is arranged to isolate the multiple electrode plates and completely isolate the multiple electrode plates from electrolytic cell wall plates, short circuit of the electrode plates is avoided, and safety and reliability are high.