250results about How to "Increase ascent speed" patented technology

A single bidirectional slip for a downhole tool reduces the volume of metal and allows an increased drill up speed. A dual sealing element system, with one sealing element above and one below the bi-directional slip, provides boost forces going through the sealing elements to the slip. The wickers of the slip can be separated by a substantially flat circumference section for placing a band around the slip to improve fracturing uniformity. The wickers can have any of a variety of configurations, including orientations axially away from the central portion of the slip and orientations axially toward the central portion of the slip.

In a shift register circuit, a defective operation while an output signal is not outputted and a drive capability lowering while the output signal is outputted are prevented. A unit shift register comprises a first transistor for supplying a clock signal inputted to a first clock terminal to an output terminal, and the first transistor is driven by a drive circuit. A second transistor is connected between the gate of the first transistor and the output terminal and has a gate connected to the first clock terminal. The second transistor connects the gate of the first transistor to the output terminal based on the clock signal when the gate of the first transistor is at L (Low) level.

The invention relates to a method and a device for fast measuring the coal bed gas pressure through upward remote-distance hole drilling. According to the method, firstly, high-pressure grouting is carried out on each rock stratum under the coal bed to be tested through hole drilling, various cracks are blocked, then, the drilling is carried out into the coal bed, a four-way pipe is inserted, in addition, a capsule hole sealing device provided with a gas pipe, a grouting pipe and a water filling joint is connected to a position near a hole opening of the drilling hole, firstly, a manual pressure test pump is used for filling water into the capsule hole sealing device through a water filling joint so that the capsule hole sealing device is expanded, and the drilling hole is pre-sealed; then, a low-pressure hole sealing pump is connected with the grouting pipe, cement slurry is filled into the drilling hole, after the cement slurry overflows from the gas pipe through the four-way pipe, a pressure meter is connected onto the gas pipe arranged at the hole opening part, and the coal bed gas pressure can be measured. The method and the device can be used for measuring the upward coal bed gas pressure with the distance within 50m, the roadway engineering dug for coal bed gas pressure measurement can be reduced, the measuring equipment is simple, and the operation is simple and convenient.

The invention discloses a water turbine cylinder valve machine electrohydraulic control system with a function of runaway turnoff, which consists of a control valve assembly, flow-dividing motors and oil distributing modules; wherein, the output of the control valve assembly is respectively connected with N synchronous flow-dividing motors and corresponding N oil distributing modules; a servomotor is respectively connected on the tail end of each oil distributing module as an executive device of a hydraulic system; the flow-dividing motor is radial plunger type and carries out flow dividing on hydraulic oil to ensure that the input and output oil amount of each servomotor hydraulic cylinder are equal, meanwhile, the oil distributing module is provided with two fine adjustment and rough adjustment electromagnetism ball valves to ensure that the synchronous control of corresponding servomotor meets the requirement of designing through accurately controlling flow entering into the servomotor by PLC. The invention can control the speed of the servomotor by controlling the flow of an electro-hydraulic proportional direction valve to realize hydraulic-electric synchronous and speed control with high precision, and a machine unit can be turned off immediately under the combined action of an over-speed protection device and a control system with the function of runaway when the machine unit is over speed.

The present invention is current pulse controlling method and device with rise edge raising capacity and fall edge linearity regulating capacity and current pulse generating method and device, and is especially suitable for the condition with great inductance load in geophysical exploration, engineering geological exploration and other fields. The method of the present invention includes: regulating frequency, regulating the voltage of DC power supply and clamping voltage source to generate voltage waveform with the same shape and amplitude, calculating the fall slope of the positive and negative current pulses and the fall delay time of the output current pulse. The device of the present invention includes DC power source, power switch, bipolar current pulse generator and its control circuit, inductive load, rise edge raising circuit, clamping circuit and clamping voltage source.

A controller (117) for an air conditioner using a refrigerant as a heat source is constructed such that, when a refrigerant temperature detected by a refrigerant temperature sensor (116) has reached a specified value, air with a volume of normal setting is blown into a vehicle compartment, and when the refrigerant temperature has not reached the specified value, air blowing into the vehicle compartment by a blower fan (107) is limited.

This invention discloses a semiconductor memory device having a voltage supply circuit for generating a driver power supply voltage. The voltage supply circuit is provided with a first voltage supply circuit for precharging the driver power supply voltage to a power supply voltage level of a memory cell, and a second voltage supply circuit for supplying a voltage lower than the power supply voltage level of the memory cell as the driver power supply voltage.

A block management method applicable to a non-volatile memory storage system is provided. The non-volatile memory storage system includes a plurality of chips. Each chip includes a plurality of physical blocks. The physical blocks form a plurality of physical block sets. Each logical block in a logical space corresponds to at most two physical block sets. In the block management method, when a logical block corresponds to two physical block sets filled with data and more data is to be written, a free physical block set is allocated for storing the data. Then, one of the two physical block sets corresponding to the logical block is selected according to a predetermined criterion. The valid data in the selected physical block set is copied into the free physical block set. Next, the selected physical block set is erased and collected to the pool of free physical block sets.

A collapsible-box gluing machine for the production of collapsible boxes from blanks has a folding station for folding blanks, a subsequently arranged transfer station and a collecting and compression device, wherein the flat-lying folded collapsible boxes are pressed for the bonding of the adhesive. The transfer station has at least one pair of conveyor belts as a conveying device, which consists of a lower belt and an upper belt. In order to transfer the blanks with precisely positioned side flaps to the collecting and compression device, the transfer station has a variable ratio transmission to drive the upper conveyor belts at a higher speed than the lower conveyor belts.

The invention discloses a seawater desalination plant applied to small ships. The seawater desalination plant comprises a seawater storage case and a fresh water reception case, the seawater storage case is connected to a seawater evaporation plant by a seawater pipe, the seawater evaporation plant comprises a seawater evaporator and a glass cover in convex lens shape, and the glass cover seals and covers the whole seawater evaporator; the top part of the glass cover is provided with a condenser tube, and the lower end of the condenser tube is provided with an arc anti-falling cap whose opening is downward; the inner wall of the glass cover is circularly provided with a baffle plate, the baffle plate and the glass cover form a cavity for containing fresh water, and the cavity is connected to the fresh water reception case by a water valve and a fresh water pipe; the seawater evaporation plant is internally provided with a manometer, the manometer acquires the pressure in the glass cover, and transmits the data to a display screen for displaying; the glass cover is also provided with an air valve and a waste liquid outlet; the glass cover is connected to a suction pump; the lower part of the seawater evaporator is provided with an electric hot plate. The plant has the advantages of simple structure, low energy consumption and much produced fresh water.

The invention discloses a multistage electric pump for improving coarse-particle solid-liquid two-phase slurry. The multistage electric pump comprises an electric pump outer shell, a dual-output-shaft submersible motor with a thrust bearing, an upper pump and a lower pump, wherein the dual-output-shaft submersible motor, the upper pump and the lower pump are arranged inside the electric pump outer shell, the upper pump and the lower pump are respectively arranged on an upper-end output shaft and a lower-end output shaft of the submersible motor, a two-channel annular runner is arranged between the electric pump outer shell and an outer shell of the submersible motor, two ends of the two-channel annular runner are in seamless connection with a runner of the upper pump and a runner of the lower pump through an upper suction shell and a lower suction shell so as to form an integral runner of the electric pump, and the coarse-particle slurry can smoothly flow through the runner or flow back. According to the invention, the problem of runner blockage of coarse particles caused by detainment or backflow in the runner is solved, and the multistage electric pump has the characteristics of reasonable structure, simplicity for operation, capability of allowing the large coarse particles to flow through and flow back, high lift and the like.

The invention relates to a device using solar energy to generate power, in particular to a solar hot gas flow generating device which uses solar energy to enable gas to flow. The solar hot gas flow generating device comprises a heat collecting shed, a flow guiding chimney communicated with the heat collecting shed and a gas flow generator installed in the flow guiding chimney, wherein the heat collecting shed comprises a light-transmitting heat collecting shed which is positioned at the edge of the heat collecting shed and a solar vacuum tube heat collecting module which is connected with the light-transmitting heat collecting shed and is positioned in the middle of the heat collecting shed; olivary flow guiding chambers are uniformly distributed between the heat collecting shed and the ground; the flow guiding chambers and the heat collecting shed are hermetically connected, and the light-transmitting heat collecting shed and the heat collecting module are hermetically connected; and a gas flow generator I is installed in a speed increasing channel formed by the two flow guiding chambers. In the invention, the heat collecting shed comprises a low temperature region and a high temperature region, the speed increasing channel is arranged in the heat collecting shed, solar photovoltaic cells are installed on the heat collecting shed, and the waste heat of the flow guiding chimney is recycled simultaneously, thereby effectively improving the efficiency of the solar hot gas flow generating system, increasing the strength of the heat collecting shed and prolonging the service life of the heat collecting shed.

A toner having an inorganic fine particle and a toner particle containing a binder resin, wherein the binder resin contains a polymer A having a first monomer unit derived from a first polymerizable monomer and a second monomer unit derived from a second polymerizable monomer that is different from the first polymerizable monomer, the first polymerizable monomer is selected from the (meth)acrylic acid esters each having a C_18-36 alkyl group, the content of the first monomer unit in the polymer A is within a specific range, the SP value of the first monomer unit and the SP value of the second monomer unit are in a specific relationship to one another, the inorganic fine particle is surface treated with a compound having an alkyl group, and the volume resistivity of the inorganic fine particle is within a specific range.

A method for forming a suicide layer of a semiconductor memory device is disclosed. A silicide layer is formed in an impurity junction region through a contact hole exposing the impurity junction region on a semiconductor substrate. Here, two thermal annealing processes are performed on the semiconductor substrate on which a metal layer is deposited, by using low and high temperature up speeds and maintaining the semiconductor substrate under the highest temperature for less than one second, and then dropping the temperature at high speed. The process for removing a portion of the metal layer which did not react is carried out. As a result, a shallow junction can be formed in a very small devices, and deterioration of an electrical property of the semiconductor device is minimized by reducing junction leakage current, which results in the rapid operation of the device.

The invention provides a metro construction rescue capsule which comprises a conical drill bit, three triangular breakers, a protective cabin, a cabin door, omnibearing drill bits, a screwy piece, an inlet, a hydraulic motor, three driving gears, three third hydraulic cylinders, inner teeth, a first round hole and three fourth hydraulic cylinders and is characterized in that the protective cabin is cylindrical, the upper half portion of the protective cabin is hollow, the lower half portion is provided with three round holes formed in the radial direction, and included angles formed by the axes of the three round holes are 120 degrees. The protective cabin can be fixed to a surround rock through the three arranged omnibearing drill bits, the conical drill bit id driven to upward drill through the hydraulic motor after fixing, the triangular breakers can be adopted to break rocks in the drilling process, breaking of hard rocks is promoted, and the rising speed of the conical drill bit is improved.

The invention discloses a power output control circuit which is arranged between the output end of a power circuit and a load. The power output control circuit is characterized in that the power output control circuit is composed of a switch tube and a detection control circuit set with the preset voltage value, the switch tube is connected between the output end of the power circuit and the load in series, the detection control circuit detects the output voltage of the power circuit, when the output voltage is lower than the preset voltage value, the switch tube is controlled to be turned off, and when the output voltage exceeds the preset voltage value, the switch tube is controlled to be turned on. The power output control circuit has the technical advantages that the supply voltage establishing time taken to supply power to the load through the power circuit can be adjusted, and the starting capability of the self-oscillation power circuit is improved. A back-level power source can be easily and reliably started until a pre-level power source is completely started, and the accurate and reliable starting time sequence of a multi-layer power supply system starting is guaranteed. The invention further discloses the multi-layer power supply system with the power output control circuit.

The invention particularly relates to a deep-well rescue robot applicable to narrow spaces and with strong passing capability, in-time rescue and convenience in carry and a rescue method. The deep-well rescue robot comprises an elliptical spherical-shell-shaped path finding body and a plurality of spherical-shell-shaped rescue bodies, wherein four-rotor or six-rotor type flying mechanisms are arranged at the corresponding positions of respective upper end surfaces of the path finding body and the rescue bodies; and the outer side surface of the path finding body is provided with two rows of supporting leg groups horizontally arranged in a ring shape along the vertical direction, and each row of supporting leg group comprises a plurality of automatically-telescopic folding type supporting legs. The rescue robot can realize flying movement or creeping movement under a well by means of the flying mechanisms or the supporting legs, is compact in volume and can meet underwater rescue; and the path finding bodies can realize elusion when descending and encountering obstacles, is strong in passing capability and is suitable for rescuing in the narrow spaces. When descending, the path finding body can draw a first-type deep-well map and a second-type deep-well map so as to be beneficial to increasing the descending speed and the ascending speed of the rescue bodies and the path finding body.