79results about How to "Lower the pressure value" patented technology

The present invention provides semiconductor structures comprised of stressed channels on hybrid oriented. In particular, the semiconductor structures include a first active area having a first stressed semiconductor surface layer of a first crystallographic orientation located on a surface of a buried insulating material and a second active area having a second stressed semiconductor surface layer of a second crystallographic orientation located on a surface of a dielectric material. A trench isolation region is located between the first and second active area, and the trench isolation region is partially filled with a trench dielectric material and the dielectric material that is present underneath said second stressed semiconductor surface layer. The dielectric material within the trench isolation region has lower stress compared to that is used in conventional STI process and it is laterally abuts at least the second stressed semiconductor surface layer and extends to an upper surface of the trench isolation region.

A dual clutch transmission comprising a first clutch (16), which is hydraulically actuated by a first hydraulic cylinder (19), and a second clutch (18), which is hydraulically actuated by a second hydraulic cylinder (20), in addition to a plurality of hydraulically actuated shift cylinders (11, 12, 13, 14) for shifting gears, which can be subjected to pressure (p1, p2) by means of a selector valve arrangement (51), wherein the first hydraulic cylinder (19) and the second hydraulic cylinder (20) and the selector valve arrangement (51) are connected to a pressure side of a pressure device (24, 25, 26, 27, 28) by means of safety valves (52, 53, 54), which are actuated in unison.

A venting device for a drum. The venting device includes a body having a pair of opposing sides and defining a plurality of vent passages. The vent passages extend through the body and each an opening at each of the pair of opposing sides. The vent passages are spaced apart and arranged around a center portion of the body. A membrane structure is positioned so as to cover the openings of the vent passages on one of the pair of opposing sides of the body. The membrane structure is sealingly affixed to the body portion in an outer sealing band surrounding the openings of the vent passages. The membrane structure may be further affixed with one or more cross sealing bands extending across the membrane. A portion of the membrane structure may be further affixed to the center portion of the body. A protective structure may be attached to the body and positioned over the membrane structure.

The invention relates to the technical field of liquid crystal panel manufacturing, in particular to a pressure device which is used for improving the percent of pass of liquid crystal panels in a press fit process. The invention discloses a pressure device comprising a static pressure plate, a dynamic pressure plate, pressure sensors, driving devices and a control device, wherein the dynamic pressure plate is arranged above the static pressure plate and is composed of a plurality of movable press blocks, the pressure sensors are respectively arranged on each of the movable press blocks, driving devices are respectively arranged corresponding to each the movable press blocks, and each driving device is fixedly connected with a movable press block and drives the corresponding movable press block. The control device is respectively connected with each driving device and each pressure sensor in a signal mode, according to pressure values detected by each of the pressure sensors, the control device judges a big or small relationship between the pressure values and a setting pressure value, outputs pressure adjustment signals to the corresponding driving devices, and adjusts the pressure values between the movable press blocks and the static pressure plate to the setting pressure value.

A venting device for a drum. The venting device includes a body having a pair of opposing sides and defining a plurality of vent passages. The vent passages extend through the body and each an opening at each of the pair of opposing sides. The vent passages are spaced apart and arranged around a center portion of the body. A membrane structure is positioned so as to cover the openings of the vent passages on one of the pair of opposing sides of the body. The membrane structure is sealingly affixed to the body portion in a sealing band surrounding the openings of the vent passages. A portion of the membrane structure is further affixed to the center portion of the body. A protective structure may be attached to the body and positioned over the membrane structure.

The invention provides an ultrasonic rolling technique. The ultrasonic rolling technique comprises step as follows: an ultrasonic rolling processing device adaptive to a complicated surface is provided and comprises a casing assembly, a hydraulic assembly and an ultrasonic assembly, wherein the ultrasonic assembly is fixed in the casing assembly and connected with the hydraulic assembly, the ultrasonic assembly comprises a transducer, an amplitude-change pole and a tool head, the transducer is connected with an ultrasonic generator, two edge curves of a radial section of the amplitude-change pole are bezier curves, a first end of the amplitude-change pole is connected to a first end of the transducer, and the tool head is detachably connected to a second end of the amplitude-change pole; the ultrasonic rolling processing device is clamped to a machine tool, and the tool head is arranged in the position in slight contact with a to-be-processed surface of a workpiece; the hydraulic assembly is adjusted to output 100-2,000 N static pressure; the ultrasonic assembly is adjusted, and axial amplitude of an output end of the amplitude-change pole is enabled to be 5-30 mu m; meanwhile, a motion trail of the machine tool is set for ultrasonic rolling processing. The ultrasonic rolling technique has the advantages of high efficiency, low energy loss and the like.

A test method for T-type fissure impact toughness is characterized in that the test method for T-type fissure impact toughness comprises the following steps: manufacturing a fissure, testing the impact toughness and processing a test result. The method of the invention solves the problem that the test item cannot be solved by the prior testing standard and fills a technical gap.

A MEMS pressure sensor includes a diaphragm portion that becomes displaced according to a pressure, and a resonator arranged on a main surface of the diaphragm portion. The resonator includes: a first fixed electrode provided on the main surface; and a drive electrode having a second fixed electrode provided on the main surface, a movable electrode spaced apart from the first fixed electrode, overlapping with the first fixed electrode, as viewed in a plan view seen from a normal direction to the main surface, and driven in a direction that intersects the main surface, and a supporting electrode supporting the movable electrode and connected to the second fixed electrode.

The invention provides an ultrasonic roll finishing device adaptable to complex surfaces. The ultrasonic roll finishing device adaptable to complex surfaces comprises a shell assembly, a hydraulic assembly and an ultrasonic assembly. The ultrasonic assembly is fixed in the shell assembly and comprises a transducer, an amplitude transformer and a tool head, wherein the transducer is connected with an ultrasonic generator; the first end of the amplitude transformer is connected to the first end of the transducer, and two edge curves of the radial section of the amplitude transformer are Bezier curves; and the tool head is detachably connected to the second end of the amplitude transformer. By adoption of the ultrasonic roll finishing device adaptable to complex surfaces, the probability of movement failures caused by environment changes or self faults can be lowered and even prevented; and the ultrasonic roll finishing device adaptable to complex surfaces has the advantages of being high in efficiency, small in energy loss, small in size, long in service life, good in heat dissipation performance, high in flexibility, good in universality and low in weight.

The invention discloses a crankshaft type high-pressure cleaning pump. The crankshaft type high-pressure cleaning pump comprises a box body (3), a crankshaft (1) connected with a power, a connecting rod (2), a plunger piston (4), a pump body (6), a water supply connector (7), a pressure regulating unloading valve (8) and a high-pressure water discharging connector (10), wherein a low-pressure cavity (15), an exchange cavity (13) and a high-pressure cavity (5) are arranged in the pump body (6), the plunger piston (4) is connected on an exchange cavity (13), the water supply connector (7) is connected on the low-pressure cavity (15), a water supply check valve (14) is installed between the low-pressure cavity (15) and the exchange cavity (13), a water discharging check valve (16) is installed between the exchange cavity (13) and the high-pressure cavity (6), the high-pressure water discharging connector (10) is connected on a water outlet of the high-pressure cavity (5), a check valve (12) corresponding to a water outlet of the high-pressure cavity (5) is arranged on the high-pressure water discharging connector (10), and the pressure regulating unloading valve (8) is arranged on the high-pressure cavity (5) of the pump body (6). Due to the adoption of the structure, the crankshaft type high-pressure cleaning pump has the advantages that the structure is simple and reasonable, the operation and the use are convenient, the pressure regulation is stable, the pressure is stable, the unloading is flexible, the cleaning pump is used by limiting the pressure, and the service life is long, and the like.

The embodiment of the invention discloses a pressure cooking appliance and a control method of the pressure cooking appliance. The pressure cooking appliance can include a pot body, an upper cover anda cover plate; the upper cover and the cover plate form a pot cover; an inner container is provided in the pot body to form a cooking cavity with the upper cover; wherein the cover plate is providedwith a cooling device, the cooling device is in direct contact with the cooking cavity, and the cooling device contains a liquid for performing heat exchange with the cooking cavity; the pressure cooking appliance further includes an exhaust device; the exhaust device includes an exhaust channel which is arranged on the pot cover and communicated with the inside of the inner pot, and a pressure limiting valve that controls the opening and closing of the exhaust channel; and the pressure cooking appliance further includes a control part, which is configured to reduce the pressure value in the cooking cavity using the cooling device and the exhaust device based on a preset pressure reduction strategy. Therefore, the pressure in the pressure cooking appliance can be quickly, safely and quietly reduced.

The invention discloses a safe type intelligent air flow control device. The safe type intelligent air flow control device comprises a flow controller, a flowmeter, a flow control valve, a pipeline, and a pressure relief pipe, wherein an electric valve body is arranged in the pressure relief pipe; the flowmeter and the pressure relief pipe are connected with the pipeline; the flow controller is connected with the pipeline through the flow control valve; an air inlet and an air outlet are respectively formed in two ends of the flow control valve; the flowmeter communicates with one end of the air outlet through the pipeline; a pressure sensor is arranged in the pipeline between the flowmeter and the air outlet; the flow control valve comprises an executing mechanism, a valve body and a valve core, wherein a motor is arranged in the executing mechanism; the valve core is arranged in a cavity of the valve body; and the valve core comprises a transmission shaft, a first valve rod, a secondvalve rod and a valve seat. The safe type intelligent gas flow control device disclosed by the invention has the beneficial effects that the capacity of the flow in the pipeline can be automaticallycontrolled according to requirements, and besides, the flow rate of the pipeline is monitored in real time; and when the air flow is abnormal, self-protection can be realized through pressure relief.

The invention discloses a high-temperature high-pressure vacuumizing test device and an operating method thereof. The high-temperature high-pressure vacuumizing test device comprises a vessel holder (3), a console (4), a stander (1) for installing the vessel holder (3) and the console (4) and an interface (2), wherein a test vessel (6) which is used for arranging a test sample (5) and provided with a sealing cover is arranged in the vessel holder (3), and the high-temperature high-pressure vacuumizing test device also comprises a pressure system, a temperature system and a vacuum pump (8); the pressure system is arranged in the console (4), and the pressure system is communicated with the test vessel (6) to adjust the pressure value in the test vessel (6); the temperature system consists of a part which is arranged in the console (4) and a part which is arranged in an inner cavity of the test vessel (6), and the two parts of the temperature system are communicated with each other to adjust the temperature value in the test vessel (6); the vacuum pump (9) is arranged on the stander. The high-temperature high-pressure vacuumizing test device integrates the temperature system, the pressure system and the vacuumizing system.

The invention discloses a construction method for conducting high-pressure jet grouting hole guiding firstly and then conducting grouting-assisted jacked pile sinking, belongs to the field of foundation construction, and aims at providing the construction method solving difficult jacked pile sinking and bearing capacity instability caused by water guiding. According to the technical scheme of theconstruction method, the construction method is characterized in that high-pressure jet grouting hole guiding construction and static-pressure pile sinking construction are included, the high-pressurejet grouting hole guiding construction includes the step that hole drilling is in place, the step of high-pressure jet grouting drilling, the step of drill lifting and like, and static-pressure pilesinking includes the step that a static pressure pile machine is in place, the step of the first stage of static-pressure pile sinking, the step of the second stage of static-pressure pile sinking, the step of the third stage of static-pressure pile sinking and the like. According to the construction method, a pile position soil layer is disturbed through high-pressure jet grouting water guiding to form a saturation disturbance body at the position of a hard soil layer firstly, then, side pile grouting fluid starts to be injected when a jacked pile sinks to the saturation disturbance body, pile end grouting fluid then continues to be injected in the pile end after the pile tip reaches the designed depth so that a grouting expansion head can be formed by the pile end, and the problems thatjacked pile sinking is difficult and bearing capacity instability is likely to be caused by water guiding are solved.

The invention discloses a football shooting training device, and belongs to the field of football training devices. A lifting steering device pushes the gap between two ends of an upper baffle and a fixing base seat to fall, at this time, a motor can provide power support to a serve device in the running process, wherein a convex column is mounted on one side of a rotary disc far away from the center of a circle to form an elliptical motion track; when the gap between the upper baffle and the left end of the fixing base seat is reduced, the rotary disc rotates to drive the long connecting rodand a short connecting rod to pull the serve device to move in an elliptical arc shape, a soccer ball sliding into an ejection barrel is shot out under the action of the serve device, and with the continuous movement, a position angle and height of the ejection port of the ejection barrel are constantly changing, so that the movement track of the ball shot in each shot is different, and meanwhile,the ball is used as a high ball, a strong shot, even an arc drop shot or a shot, so that the device is good for training the athlete's reaction ability.

The invention discloses an interlaminar shear resistant strength testing method which comprises the following steps: (1) shearing a composite material pipe into a plurality of test samples with same lengths along an axial direction, and respectively detecting the test samples and the rest pipe through a clamp detection mechanism and a releasing tool; (2) respectively testing the plurality of test samples sheared through a clamp testing mechanism, determining a minimum value of maximum pressure values of the plurality of test samples as the interlaminar shear resistant strength value F1, testing to obtain the shearing failure load F2 of a releasing connector through the releasing tool, calculating the interlaminar shear resistant strength value tau1 of the test samples by adopting a formula, and calculating the shearing failure strength tau2 of the releasing connector by adopting a formula; (3) calculating the corresponding relation coefficient alpha by adopting a formula; and (4) increasing the safety coefficient beta aiming at a downhole tool made from different composite materials, and acquiring pumping pressure P, namely the interlaminar shear resistant strength value, during the interlaminar failure of the downhole tool by adopting a formula. The interlaminar shear resistant strength testing method disclosed by the invention can be used for reducing the well completion construction failure caused due to insufficient interlaminar shear resistant strength of the composite material pipe.

The invention discloses a rhodiola rosea micro powder tablet and a preparation method thereof and aims at solving the problem that existing tabletting processes need additional auxiliary materials and the content of effective constituents of prepared tablets is low. The rhodiola rosea micro powder tablet has water content 3-15%, the partical size of the tablet is 1-150mum, the rhodiola rosea micro powder tablet is prepared at the tabletting temperature of subzero 10-10 DEG C, any auxiliary material is not added in the preparation process, and rhodiola rosea micro powder is an unique constituent of the tablet. The purpose of direct tabletting and forming can be achieved by controlling moisture and the temperature or by adopting a circular tabletting process or a dry granulating and tabletting process. The process enables the tablet to be good in appearance and enables the pitted surface rate and the breakage rate to be low, the hardness, the disintegration degree and the breakage degree of the tablet meet the requirement for tablet quality, and the hardness can further ensure the tablet not to fragment in the coating and film covering treatment process of the tablet.

Apparatus and a calibration method for measurement of blood pressure are used to determine personal PIP's for a given subject and to store the personal PIP's for future personal use in blood pressure measurement in the subject. The apparatus comprises at least one button communicating with a MPU unit for entering information used to determine the personal PIP's of the subject. The method comprises the steps of obtaining information required to determining the PIP's of a subject, determining the personal PIP's of the subject, and storing the personal PIP's of the subject for future personal use for the subject.

The invention belongs to the field of ultrasonic vibration and mechanical engineering, and discloses an interference fit part assembling and disassembling device applying ultrasonic vibration and a using method. The interference fit part assembling and disassembling device comprises a press, an ultrasonic generation device, a sleeve mechanism and a vibration mechanism, wherein the press is a mechanical press with lifting threads, the ultrasonic generation device is connected with the sleeve mechanism through a flange plate by using bolts, the vibration mechanism is connected with the sleeve mechanism through a lower end cover and a flange plate by using bolts, a bottom cross beam is arranged at the bottom of a device body, and a fastening seat is arranged on the bottom cross beam. According to the interference fit part assembling and disassembling device applying ultrasonic vibration and the using method, the press-fitting force during assembling and the pressure value required duringdisassembling are effectively reduced, the damage to the contact surface of a part is reduced, the working efficiency and the operation safety are improved, and the labor intensity is reduced.

The invention discloses a pressure reducing device and an air conditioner control method and a device. The pressure reducing device comprises a liquid storage tank capable of storing a refrigerant, a first pipe connected with air inlet pipes or air outlet pipes of the liquid storage tank and an outdoor side heat exchanger and provided with a first controllable switch, and a second pipe connected with air inlet pipes or air outlet pipes of the liquid storage tank and an air-liquid separator and provided with a second controllable switch, wherein the first controllable switch and the second controllable switch are connected with a controller, and can receive control signals of the controller and perform related actions. Under the condition that the system detects that the system pressure is too high, the controller can control the openness of the first controllable switch and/or the second controllable switch according to preset rules, so that the refrigerant in a system circulating pipe can be conveyed into the liquid storage tank through a first pipe and/or a second pipe, a system pressure value is reduced, and the normal work of the air conditioning system is guaranteed.

The invention relates to a construction method for repairing lateral displacement of a retaining wall. The method is characterized by comprising steps as follows: vertical borrow holes are vertically drilled in a soil body on the outer side of the wall back of the retaining wall, and dual-layer pressure balance hoses are inserted; transverse reaction steel plates and vertical reaction steel plates are arranged on the wall surface of the retaining wall, and transverse tie bar penetration holes and retaining wall ejection limiting grooves are formed in the transverse reaction steel plates and the vertical reaction steel plates respectively; a temporary reaction column is arranged on the outer side of the retaining wall, ejection devices are arranged between the reaction column and the reaction steel plates, and obliquely downward ejection force is applied to the retaining wall; transverse tie bars are arranged between the retaining wall and the soil body on the outer side of the wall back; obliquely downward ejection force and transverse pull force are applied to the retaining wall while vertical borrowing is performed; finally, oblique grouting holes are formed in the bottom of a foundation of the retaining wall, and solidified reinforcing bodies are formed through grouting. With the adoption of the method, the lateral displacement of the retaining wall can be repaired quickly, the integrity of the repaired retaining wall and the soil body on the outer side of the wall back can be enhanced, and the carrying capacity of the foundation of the retaining wall can also be improved.

The invention discloses a tight oil steam flooding steam temperature design method, and aims at defining the optimal steam temperature range in a tight oil reservoir and calculating the change degreeof formation pressure when the temperature of the oil reservoir is heated to different degrees by taking a crude oil thermal expansion coefficient and a compression coefficient tested by a high-temperature and high-pressure phase analyzer as the basis. Meanwhile, a calculation method of the optimal steam temperature is provided under the condition of considering the starting pressure gradient andthe rupture pressure. According to the method, the limitation that steam flooding is only suitable for thick oil development in the past is broken through, a theoretical basis is provided for tight oil supplementing stratum energy parameter optimization and a new method is provided for improving the tight oil development effect.