404 results about "High air pressure" patented technology

The invention discloses an electric pressure cooker achieving non-self-reset pressure relief. The electric pressure cooker achieving non-self-reset pressure relief structurally comprises an electric pressure cooker body, a housing, a base, an inner groove, a remote wifi receiver, a variable-frequency controller, a battery plate, a heat insulation plate, a heating plate, a temperature sensor, an aluminum alloy panel, an inner container, a protective cover and an air escape valve, wherein the housing is arranged on the electric pressure cooker body, the base is arranged below the housing, the inner groove is formed in the surface of the base, the inner groove is fixedly connected with the housing through the base, and the remote wifi receiver is arranged in the inner groove. By arranging theremote wifi receiver, the variable-frequency controller and the battery plate, the heating plate behind the heat insulation plate can be remotely opened, the movable plate can be opened by utilizingthe impact force of pressure and arranging the movable plate on the surface of the air escape valve under the situation of too high air pressure, the heat insulation effect of an inner container coreis ensured by arranging a vacuum interlayer with medical stones, and the electric pressure cooker is simple in structure and easy to achieve.

An air purifier includes a vertically disposed housing provided with a wire gauze filter, electric fans and air filter elements. The electric fans draw outside air around the floor vertically into the bottom air intake port toward the top air output port of the housing so that the flow of air, when passed out of the air output port, flows upwards to a certain elevation and is then diffused and lowered in all directions around the housing. By means of the traction of the flow of air, the pressure difference of the convection of air between the low air pressure and the high air pressure at the bottom and top sides of the housing, high concentration of car waste gas, micro dust particles, hair dust, micro fibers and other harmful industrial odors that fall to the floor due to the effect of gravity or floating nearly above the floor are sucked into the inside of the housing by the low air pressure zone at the open bottom side of the housing and then removed by the filter elements.

A fuel injector and turbine engine incorporating the fuel injector are provided. The fuel injector includes an active cooling system that insulates fuel flowing through the fuel injector from heat energy within the turbine engine. The cooling system includes a cooling air passage that includes an inlet and an outlet. The inlet and outlet are in fluid communication with the interior of an engine case of the turbine engine. The inlet is at a higher air pressure location than the outlet such that air is siphoned through the cooling air passage. A portion of the cooling air passage includes a heat exchanger for extracting heat energy from the cooling air. The cooling air passes through the fuel injector after it has passed through the heat exchanger. The heat exchanger is positioned external to the engine case and in thermal communication with the ambient.

The invention belongs to the technical field of high-voltage equipment and electrostatic measuring, and discloses a three-dimensional measuring device and method of charges on the surface of a basin-type insulator. The device comprises an arc surface and inclined surface measuring probe, a probe support guide rail, a probe radial motion control mechanism, a link mechanism, a 360-degree rotation control disk, a reading mechanism, a lifting control lead screw, a control mechanism, a sealed through-connection cavity, a main shaft for controlling motion, a coupler and an operation platform base. The whole set of mechanisms is in sealed connection with a GIS testing cavity. The three-dimensional measuring device can realize three-dimensional control over charge measuring on the surface of the actual basin-type insulator; air impermeability of a testing device is guaranteed, therefore, the purpose that all-direction and totally-radial three-dimensional measuring is conducted on the charges on the surface of the basin-type insulator in voltage equipment or high-air-pressure environment is realized, and high charge resolution and spatial resolution is achieved in measuring the surfaces of various basin-type insulators. Meanwhile, the three-dimensional measuring device and method can be used for environments with high requirements for air impermeability and the measuring process can be observed.

The invention provides an energy-feedback active control type air braking system, relates to an air braking system of electric automobile energy feedback and belonging to the field of electric automobiles. The energy-feedback active control type air braking system comprises a high-air-pressure generation module, an active air pressure control module and an ABS (Anti-skid Brake System) module, wherein the high-air-pressure generation module is used for generating high-pressure air for the whole automobile under certain pressure; and the active air pressure control module comprises a pedal displacement sensor, a brake pedal, a brake valve, a brake controller, a front-axle double-control proportional relay valve and a rear-axle double-control proportional relay valve. The energy-feedback active control type air braking system is capable of realizing ideal distribution of a braking force and maximization of the rate of energy recovery. The energy-feedback active control type air braking system employs the double-control proportional relay valves to realize active real-time accurate distribution of the braking forces of a front axle and a rear axle, the braking motor of a driving shaft motor and the mechanical braking force; and simultaneously, the energy-feedback active control type air braking system is capable of guaranteeing braking security by starting the conventional braking manner when the electric control part of the double-control proportional relay valves becomes invalid. Furthermore, the energy-feedback active control type air braking system provided by the invention is applied to electric vehicles having the air braking system.

A control unit for controlling a supercharging system connected to an internal combustion engine for providing a higher air pressure in the air inlet to the engine, is described, said engine being controlled by an engine control module, said control unit arranged to receive a control signal from the engine control module indicating a desired air inlet pressure to the engine and to receive from the supercharging system a pressure signal representing a current air pressure generated in the supercharging system and to control the function of the supercharging system in dependence of the control signal and the at least one air pressure signal. Other control units, for example, for the batteries, may be added to the system to achieve a distributed control system.

Embodiments for an apparatus and associated method for reducing the residence time in a gas turbine combustor are disclosed. The embodiments of the present invention comprise a fuel nozzle that extends to a downstream plane of an end cap for a combustion liner where the axial distance of the premixer is reduced, however the swirl for mixing the fuel and air, is increased. As a result, the mixing of the fuel and air is essentially unchanged, thereby allowing higher air pressures and operating temperatures within the premixer without inducing auto-ignition.

The invention discloses a volute type centrifugal fan with one inlet and two outlets. The volute type centrifugal fan with the inlet and two outlets comprises a volute, blades installed in the volute and a blade motor, wherein the air inlet is formed in the volute; an air cavity is formed inside the volute and on the outer side of the blades; the first air outlet and the second air outlet between which an included angle is formed are formed in the tail of the air cavity of the volute; a reversing baffle is arranged inside the air cavity of the volute and can enable the first air outlet or the second air outlet to be communicated with the air cavity. A new air outlet is additionally arranged at an air outlet of a traditional volute centrifugal fan, and an included angle is formed between the two air outlets, so that when a normal mode and a cold air mode of a heat pump water heater with a cold air function are switched, reversing of media inside the fan needs can be finished as needed by adjusting the reversing baffle. The volute type centrifugal fan with the inlet and two outlets can well meet the requirements of machines. As the automatic switching type reversing baffle is applied to the fan, secondary reversing requirement of the medium inside the centrifugal fan is realized, and the characteristics of high air pressure and low noise of an original centrifugal fan are kept.

The invention relates to a four-dimensional self-adaptive insulation piece surface charge measuring device, which belongs to the technical field of the high-voltage device and the electron. The measuring device comprises a measuring probe, a probe control mechanism, a rotation disc, a camera, a power source, a controller infrared distance meter and the like. A distance signal is received by the infrared distance meter, the distance and the angle between the probe and the measured surface are automatically adjusted through a plurality of motors, the probe is maintained to be vertical to the surface, and the distance between the probe and the measured surface is constant, so the measurement of the surface charge of the insulation piece is realized. The measuring device can be arranged inside a sealing cavity which can bear the air pressure, measures the surface charge of the insulation piece in the high-air-pressure environment, realizes two translation motions and rotations of the probe, is applicable to the measurement of the insulation pieces with different shapes, and has high space resolution ratio.

A method of inspecting insulators such as spark plug insulators for defects, whereby a plurality of insulators are inspected concurrently by being disposed with a plurality of first electrodes engaged in respective apertures in the insulators, and with apertures formed in a second electrode being disposed to peripherally enclose respective insulators. With the insulators and electrodes set in a closed chamber under high air pressure, and high voltage applied between the first and second electrodes, any defect is detected based on a level of leakage current which then flows.

Method of producing a therapeutic laser device (TLD). The TLD includes stretchable, flexible membranes which comprise a high pressure air cavity. High air pressure is produced by fans which are speed controllable by computer. Standoff posts provide, an attachment function, and a separation function between the TLD and the patient. Semiconductor laser diodes and lens sets in a two dimensional array produce the therapeutic laser light. Cooling air tubes direct air controlled by temperature sensors from the high pressure cavity onto laser diodes. Capacitive proximity sensors in conjunction with infrared radiation sensors confirm close contact with a patient and allow lasing. Power is supplied either by battery or by connection to mains power. A touch screen computerized device with wireless communication displays information to the user and controls the therapy session. The TLD and the power supply both have stretchable straps enabling the TLD to be fixed to the patient.

In one embodiment, a dynamic tire air pressure system for a vehicle is disclosed. The system includes a tire pressure sensor that measures an air pressure of a tire. The system also includes a first reservoir tank maintaining a lower air pressure than the measured air pressure of the tire. The system further includes a second reservoir tank maintaining a higher air pressure than the measured air pressure of the tire. The system additionally includes one or more valves that control deflation and inflation of the tire by selectively coupling the tire to the first or second reservoir tanks.

This invention relates to a pneumatic tire with an improved driveability and a reduced weight as well as a maintained traveling durability, and particularly a pneumatic tire having a high post cure inflation pressure, and being best suited as a pneumatic tire for a light truck with a high air pressure. In the pneumatic tire, twisted cords formed of a polyketone fiber represented by the following formula (a), and having a thermal shrinkage stress value, at a dry heat temperature of 150° C., of not less than 0.19 cN / dtex are used as cords for forming a carcass layer:—(CH2—CH2—CO)n-(R—CO—)m-  formula (a);where the relationship between n and m is represented by the following formula (b), and R represents an alkylene group having 3 or more carbon atoms:1.05≧(n+m) / n≧1.00  formula (b).

The invention relates to a novel partial deep layer pressurizing type vacuum preloading soft soil foundation processing method. According to the technical scheme, the method comprises a vertical drainage system, a transverse drainage system, vacuum extraction equipment, a pressurizing system, pressurizing equipment and a sealing system; a vertical drainage board adopts a novel anti-clogging drainage board, the vertical drainage board is divided into two parts to be driven, one part is driven into a soil body, and the other part is exposed out of the surface of the soil body. The technology enables a deep soil body to obtain higher air pressure, enables a larger pressure difference to be formed among the deep soil body, an upper soil body and the vertical drainage board, and enables the free water in the deep soil body to fast flow to the upper soil body and the drainage boards. In addition, the flow direction of airflow from a jet head obliquely upwards points to the drainage boards, therefore the seepage of the pore water in the deep soil body to the drainage boards can be accelerated, and the deep soil body can obtain better reinforcement effect.

Method of producing a therapeutic laser or LED device (TLD). The TLD includes flexible membranes which comprise a high pressure air cavity. High air pressure is produced by fans which are computer speed controlled. Standoff posts provide a separation function between the TLD and the patient. Semiconductor laser diodes and lens sets or LEDs and lens sets in a two dimensional array produce the therapeutic light. Cooling air tubes direct air controlled by temperature sensors from the high pressure cavity onto laser diodes or LEDs. Capacitive proximity sensors in conjunction with infrared radiation sensors confirm close contact with a patient and allow light radiation. Power is supplied either by battery or by connection to mains power. A wireless touch screen device displays information to the user and controls the therapy session. The TLD and the power supply both have stretchable straps enabling the TLD to be fixed to the patient.

The invention relates to an air-tight-seal MMW (millimeter wave) coaxial connector, comprising an inner conductor component, an outer conductor component, an intermediate insulator and two connecting termination points which are respectively arranged at two ends of the outer conductor, wherein the inner conductor component comprises an inner conductor contact pin and two inner conductor jacks; the outer conductor component comprises an outer conductor and an outer conductor pressing sleeve; step surfaces of the outer conductor and one end face of the outer conductor pressing sleeve form an outer conductor groove; the intermediate insulator is arranged in the outer conductor groove; the inner conductor contact pin passes through a though hole in the middle of the intermediate insulator, and two ends of the inner conductor contact pin are respectively inserted into the two inner conductor jacks; and two circular grooves are formed between two end faces of the intermediate insulator and end faces of the two inner conductor jacks respectively. The coaxial connector can realize wide-band microwave transmission, has good radio frequency performance in an MMW band, realizes an air-tight seal function of a wide-band radio frequency connector, meets air-tight application requirements in the environment of high air pressure difference, and greatly improves the vibration resistance performance and the impact resistance performance of a product.

The invention discloses a ball valve gas tightness test apparatus. The ball valve gas tightness test apparatus has the advantages of convenient operation and high accuracy. With the ball valve gas tightness test apparatus adopted, it can be ensured that two end pipes of a ball valve have little possibility of being damaged due to clamping. The ball valve gas tightness test apparatus includes an air feed pump, a pressure sensor, a main rack, two push plate air cylinders, two side racks, a main end cover and an auxiliary end cover; the two push plate air cylinders are respectively located on the two side racks; the piston rod of one of the push plate air cylinders is connected with the main end cover; the piston rod of the other push plate air cylinder is connected with the auxiliary end cover; the main end cover is provided with a main elastic sealing ring gasket; the auxiliary end cover is provided with an auxiliary elastic sealing ring gasket; and a main cover air hole is formed in the main end cover. With the ball valve gas tightness test apparatus of the invention adopted, a ball valve can be positioned and clamped in place, and gas tightness can be ensured, and at the same time, the ball valve will not be damaged due to clamping. The ball valve gas tightness test apparatus has an adaptively-adjustable sealing structure, so that a sealing effect in high-air pressure detection can be strengthened; the ball valve gas tightness test apparatus has an auxiliary positioning structure, the rollback of the end covers can be avoided, and the push plate air cylinders can be protected, and a sealing effect can be improved, and stability in a detection process can be maintained.

The invention discloses a separation socket, which includes a housing, an insulator I arranged inside the housing, and a flame prevention assembly fixedly mounted inside the housing, wherein the insulator I is located at the left part of the housing, the flame prevention assembly is located at the right part of the housing, and a locking sleeve penetrating through the housing and the insulator I is arranged inside the housing; an insulator II is also arranged inside the housing and is located on the left side of the insulator I; a contact pin penetrating through the insulator I and the insulator II is also arranged inside the housing; the left end of the contact pin is located outside the housing, and the right end of the contact pin is contacted with the flame prevention assembly; a slot is formed in the excircle of the contact pin; a stepped hole is arranged in the insulator I; and a cavity is formed between the stepped hole and the slot, and is internally provided with a sealing rubber layer. The separation socket can realize pressure contact during inserting combination, at the same time, can realize internal fast separation and disconnection by using the contact pressure, satisfies the use demands of flame ablation prevention and separation, and realizes sealing under the high air pressure condition by using a maze sealing structure.

The invention discloses a slide valve pilot super high-pressure air power proportional reduction valve. It comprises a pilot valve and a main valve installed on the same valve body under the control of the proportional electromagnet. The air pressure of the lead valve can control the output pressure of the main valve. The lead valve applying C-type semi-bridge structure, the air of the semi-bridge is drawn from the high air pressure inlet of the main valve, the pilot valve under the control of the proportional electromagnet forms the inlet dynamic air damp; the outlet of the semi-bridge is connected with the outlet of the reduction valve, and a fixing air damp is arranged between them forming the fixing air damp of the outlet. The pressure-regulating chamber is on the dynamic balance status under the control of the pilot valve. The valve just uses a proportional electromagnet. When the system is out of power, the pilot valve and main valve will close automatically with the function of resetting spring and air pressure. When the system pressure is higher than expected, air can release pressure via the dismountable security valve.

The invention discloses a self-shaking falling-off cleaning type filtering device for waste gas and dust treatment, and belongs to the technical field of waste gas and dust treatment.The self-shakingfalling-off cleaning type filtering device is provided with a pressed pushing body which moves downwards in a pressed mode along with high air pressure, and when a filtering net reaches certain adsorption saturation, a magnetic shielding body is pulled to move downwards and disengage from a magnetic ball; and the magnetic shielding effect on the magnetic ball is weakened to a certain extent, at the moment, the magnetic shielding body repels a magnetic repulsion body, the magnetic repulsion body and the filter net expand outwards together, filter holes of the filter net are enlarged, a small amount of dust is shaken off in the expanding process, the filter net has the refiltering capacity, and the air pressure in the filter net is gradually reduced. The magnetic shielding body is reset upwards under the stretching action of the elastic stretching rope to magnetically shield the magnetic repulsion body, the filter net is reset inwards under the elastic action of a compression spring, dust is shaken in the reset rebounding process, meanwhile, a piston type water pressing mechanism is extruded to spray water when the filter net moves inwards, and the flocculation and dust falling effects on the dust are achieved. Agglomerated dust falls into a dust receiving barrel to be collected.

The invention relates to a pre-pressure cooker which comprises a sealable heating cavity. The sealable heating cavity is provided with a compressed air intake one-way valve, a safety valve and a pressure sensor. The pressure sensor is connected to a control circuit. Output of the control circuit controls start and stop of a pneumatic pump motor. The pneumatic pump motor drives a pneumatic pump to pressurize the inside of the sealable heating cavity through an air pipeline and the air intake one-way valve by external air filtered by a filter, and accordingly food in the sealed heating cavity is heated under high air pressure.

The invention provides a gas concentration and pressure adjustable type cell culture box, comprising a box body, a plastic bag communication pipe and a manometer communication pipe, wherein a side wall of the box body is provided with an air pipe connected with an air bag containing needed gases; the plastic bag communication pipe is communicated with a sealed plastic bag; the manometer communication pipe is communicated with a manometer; the lower part of a side wall of the box body is provided with a water pipe by which water can be drained out of the box or injected in the box, and the top part of the box body is provided with a box cover provided with a seal ring. The gas concentration and pressure adjustable type cell culture box has the advantages that: (1) mixed gases do not need to be pre-prepared, and different gases are directly injected into the cell culture box, which builds all gas conditions needed and saves gases and time, and the operation is easy; (2) the gas pressure in the cell culture box can be stably controlled, thereby the cell culture box can be used for the cell culture of which the gas pressure condition is the environmental atmospheric pressure as well as the research of the influence of the high gas pressure and the low gas pressure on cells; (3) the cell culture box matching a common constant temperature culture box can replace CO2 culture box, thereby saving costs.

The invention discloses a ball valve sealing test apparatus, and provides a ball valve sealing testing apparatus that has advantages as convenient operation and high accuracy on test result, and two pipe ends of the ball valve can be ensured not to be easily clamped and damaged. The apparatus comprises an air feed pump, an air pressure sensor, a mainframe, two push pedal cylinders, two lateral frames, a main end cap, and an auxiliary end cap; the two push pedal cylinders are set on the two lateral frames respectively; one push pedal cylinder piston rod is connected with the main end cap and the other push pedal cylinder piston rod is connected with the auxiliary end cap; the main end cap has a main elastic sealing ring pad; the auxiliary end cap has an auxiliary elastic sealing ring plate; and the main end cap has a main cover pore. The beneficial effects of the present invention are that the positioning and clamping of the ball valve is perfect and the sealing can be ensured without clamping and damaging the ball valve; a sealing structure adaptive to adjusting is provided for enhancing the sealing effect when testing in high air pressure; an auxiliary positioning structure is provided to avoid the end cap from returning, so as to protect the push pedal cylinders, raise sealing effect, and maintain the stability in the process of test.

The invention discloses a dropped bottom intermediate air knife double-turning plate quick color changing spraying room. The spraying room comprises a spraying room body and a dust clearing device which is arranged on the bottom of the spraying room body, wherein the dust clearing device comprises a bottom plate with an inverse V-shaped cross section, an air knife which is arranged on the top of the bottom plate and a recycling cavity for recycling dust, a plurality of air holes are formed in the side wall of the air knife and are connected with an air source, gaps are left between the bottom ends of the bottom plate and the side wall of the spraying room body, an inlet of the recycling cavity is communicated with the gaps, and an outlet of the recycling cavity is communicated with an air pipe. The bottom plate with the inverse V-shaped cross section is adopted, the dust falls onto the bottom plate and then slides towards the gaps under the action of self gravity, and in the meanwhile, air holes in the side wall of the air knife blow air outside to accelerate the dust to slide towards the gaps. Consequently, after the spraying room with the structure is adopted, the dust removing efficiency is higher, the air source with high air pressure does not need to be configured, and the spraying room is simple in structure and is low in cost.

The invention relates to a self-circulating heat dissipating device of a 5MW doubly-fed air-cooled and water-cooled wind generator. The self-circulating heat dissipating device has a specific structure which is characterized in that a stator core and a rotor core respectively adopt a segmented structure, radial ventilation ducts are formed between every two iron core sections by using ventilation duct plates in the lamination process of the rotor core, and the rotor core is segmented into sections with length which is gradually shortened from the two ends to the middle part to enable the rotor core to form a non-equidistant ventilation duct structure which is symmetric by the middle part of the core; axial-flow fans which are used for supplying air to the middle part of the rotor core are respectively arranged on a motor rotating shaft outside the two ends of the rotor core, and high air pressure from the outside to the inside is formed at the two ends of the rotor core when the motor rotating shaft rotates, so as to supply cold air to the internal central part of the rotor core through an axial ventilation duct of the rotor. The self-circulating heat dissipating device of the 5MW doubly-fed air-cooled and water-cooled wind generator has the advantages that the internal temperature of the generator is reduced, the insulating reliability of the motor is improved and the service life of the generator is prolonged.

The invention discloses a device for testing the sealing performance of a steel plastic pipe. The device comprises a main device base, an air supply pump, a plugging cylinder, a compacting cylinder, a shaft pipe, a limiting base and a joint supporting stand. A positioning plate is arranged on a compacting piston rod, a driving stand is arranged on a seal-head piston rod, and a plastic pipe outer end sealing plate, a steal pipe outer end sealing plate, a plastic pipe outer end sealing ring and a steal pipe outer end sealing ring are arranged on the shaft pipe. A first air inlet is arranged in the shaft pipe, a first air inlet check valve is arranged in the first air inlet, and a first air pressure sensor is arranged on the outer wall of the shaft pipe. Steel plastic pipe switching joint supported by the joint supporting stand is arranged between the limiting base and the plugging cylinder, and the air supply end of the air supply pump communicates with the interior of the shaft pipe through an air supply pipe. The integral structure is reasonable, and positioning and clamping of the steel plastic pipe switching joint are properly in place. Sealing performance can be ensured, and the steel plastic pipe switching joint may not be damaged due to clamping. The sealing structure has self-adaptive performance, and the seal effect under high air pressure detection can be enhanced.

The invention discloses a ball valve testing device. The ball valve testing device is convenient to operate, the accuracy of a testing result is high, and it can be guaranteed that two pipe ends of a ball valve are not likely to be damaged under clamping. The ball valve device comprises an air supply pump, an air pressure sensor, a main rack, two pushing plate air cylinders, two lateral racks, a main end cover and an auxiliary end cover. The two pushing plate air cylinders are arranged on the two lateral racks respectively, a piston rod of one pushing plate air cylinder is connected with the main end cover, and a piston rod of the other pushing plate air cylinder is connected with the auxiliary end cover. A main elastic seal ring gasket is arranged on the main end cover, an auxiliary elastic seal ring plate is arranged on the auxiliary end cover, and a main cover air hole is formed in the main end cover. The ball valve testing device has the advantages that the ball valve is positioned and clamped in place, seal performance can be guaranteed, and the ball valve will not be damaged under claming; a self-adaptation adjusting seal structure is arranged, so that the sealing effect is improved in high-air-pressure detection; an auxiliary positioning structure is arranged, in this way, end cover retreat can be avoided, the pushing plate air cylinders can be protected, the sealing effect can be improved, and stability in detection can be maintained.

The invention discloses an underground constant-pressure compressed air composite water pumping energy storage system and method based on a waste mine. The system comprises the waste mine, an overground reservoir, an air compressor unit and an expansion unit. The waste mine comprises a horizontal roadway and an underground goaf, and the horizontal roadway communicates with the underground goaf. The overground reservoir communicates with the horizontal roadway through a pipeline. An air outlet of the air compressor unit is connected with an air inlet of the underground goaf through a pipeline,and an air outlet of the underground goaf communicates with an air inlet of the expansion unit arranged on the ground. The method comprises: an energy storage stage, wherein air is pressed into the underground goaf through the air compressor unit to form high-pressure air, the high-pressure air presses the water into the overground reservoir, the air pressure is kept constant, and constant-pressure energy storage is realized; and the energy release stage, wherein the air is exhausted outwards under the action of high pressure for power generation, the water in the overground reservoir supplements the volume of the air flowing out of the underground goaf, the air pressure constancy of the horizontal roadway and the underground goaf is achieved, and constant-pressure energy release power generation is achieved.