302results about How to "Shorten closing time" patented technology

A vaporizer delivery system for use in semiconductor manufacturing processes including a plurality of vertically stacked containers for holding a vaporizable source material. Each of the vertically stacked containers includes a plurality of vented protuberances extending into the interior of the each stacked container thereby providing channels for passage of a carrier gas between adjacent vertically stacked containers.

A vaporizer delivery system for use in semiconductor manufacturing processes including a plurality of vertically stacked containers for holding a vaporizable source material. Each of the vertically stacked containers includes a plurality of vented protuberances extending into the interior of the each stacked container thereby providing channels for passage of a carrier gas between adjacent vertically stacked containers.

A fuel injector (1) for fuel injection systems of internal combustion engines is specially designed for the direct injection of fuel into the combustion chamber of an internal combustion engine. It is provided with a solenoid coil (10), a two-part armature (20a, 20b) that is acted upon through the solenoid coil (10) in a closing direction by a first resetting spring (23a), and a valve needle (3) that is connected to the larger armature part (20a) in a force-locking manner, for actuating a valve-closure member (4) which together with a valve seat surface (6) forms a sealing seat. The first armature part (20a) is acted upon in the closing direction by the first resetting spring (23a), and the second armature part (20b) is acted upon in the closing direction by the second resetting spring (23b), the spring constants of the resetting springs (23a, 23b) being different.

An IGBT is provided which comprises N+ type extended region 9 sectively formed in P+ type collector region 1 to define a built-in diode in cooperation with N+ type extended region 9, an N− type base region 2 and a P− type base region 3 in semiconducting substrate 10. N− type base region 2 comprises a recombination region 21 developed between P type base region 3 and collector electrode 8 to acquire minority carriers accumulated around recombination region 21 in first base region 2 by recombination region 21 for improvement in recovery property of the diode without increasing voltage in the forward direction since recombination region 21 does not reach between and beneath adjoining second base regions 3 in N type base region 2 for current path.

A method has been invented for separating components of a wastewater stream, the stream containing water, oil (e.g. heavy oil and / or light oil), undesirable organic material (solid and / or liquid), and contaminating solids, the method including feeding a wastewater stream to a first pre-treatment unit producing a first pretreated stream, feeding the first pretreated stream to a first centrifuge for centrifugal separation, producing a first liquid centrifuged stream, and a second liquid stream, and feeding the first liquid centrifuged stream to a second centrifuge producing a resultant centrifuged stream of recoverable oil and a water phase centrifuged stream which can be treated further or fed back to a source for re-use. The source may be a facility from the group including refineries, chemical plants, paper mill plants, and oil and gas processing facilities.

A shutter opening / closing control device is proposed which can reduce an operation noise of the shutter without increasing the manufacturing cost. The shutter opening / closing control device includes a grille shutter for opening and closing a grille opening which introduces the outside air into the engine compartment, a shutter opening and closing operating portion having a drive source for operating the shutter to be open or to be closed, a closing operation judging portion for judging whether or not the grille shutter is operated in a closing direction based on the vehicle information and a drive source torque controlling portion for controlling the drive source of the shutter opening / closing operating portion to operate the grille shutter first by a high torque and thereafter by a low torque which is lower than the high torque when the grille shutter is judged to be operated in the closing direction by the closing operation judging portion.

The invention discloses a fast large-cross-section tunnel construction method adapting to complicated and variable geological conditions. Middle walls and steps are combined, whether the arrangement of temporary inverted arches of each steps and middle partition walls of upper, middle and lower steps is needed or not is determined according to actual geological condition change conditions and field monitoring information in the tunnel construction process, when the rock surrounding condition becomes poor in the tunnel construction process, temporary support and protection of each excavated parts are respectively implemented, when the rock surrounding condition becomes good, a plurality of small excavated parts can be combined into a large excavated part until the full cross-section one-step excavation forming method is adopted, and division positions of each excavated parts in the construction process is not changed. The method has the advantages that in the construction, the conversion problem of the construction method does not exist when the geological conditions are changed, the construction speed of large-cross-section tunnels under the complicated and variable geological conditions is greatly accelerated, the construction work period is shortened, and the construction cost can be properly reduced.

The invention discloses a rapid construction method of a weak surrounding rock large-section multi-arc tunnel. According to the invention, in tunnel construction, the main tunnel on one side of the multi-arc tunnel and the place of a partition wall are synchronously excavated; the tunnel excavation is implemented by using a double side-wall heading method; then, a primary support and the partition wall are constructed before the secondary lining of the tunnel; and finally, the main tunnel on the other side of the multi-arc tunnel is excavated by using a single side-wall heading method, and a corresponding support structure is built. Compared with the traditional multi-arc tunnel construction method, the construction method disclosed by the invention does not need to cut through a middle guide tunnel and build the partition wall before excavating the main tunnels on the two sides, thereby greatly accelerating the construction of the multi-arc tunnel, shortening the construction period and properly lowering the construction cost.

The circuit contains a single processing circuit, it receives the control pulse. A from the electronic control unit of the motor and output high voltage driving pulse Ah and low voltage driving pulse Al to higher extreme driving circuit separately and receive the feedback sampling current signal from lower extreme driving circuit, after processing, the low voltage driving pulse Al adjust the higher extreme driving circuit to adjust the driving circuit of the electromagnetic valve. Lower extreme driving circuit receive pulse signal B from electronic control unit of the motor, this pulse signal is same with the control signal A.

The invention discloses a prefabricated tunnel lining segment, belonging to the field of tunnel construction technology and aiming at simplifying the production and processing technique of prefabricated segments, optimizing the connection mode of segments and improving the prefabricated segment splicing and lining construction efficiency of a shield tunnel, especially round cross section, and the like. The concrete lining in the cross section of a round tunnel is divided into six prefabricated concrete segments, arcs are arranged on the cross sections of the six concrete prefabricated concrete segments, the six concrete prefabricated concrete segments include a top sealing block, two abutting blocks and three standard blocks, and two end surfaces of each block are provided with concave-convex steps which have symmetric or reverse structures; the top sealing block is shaped like a regular wedge which has a symmetrical structure, the two abutting blocks are both partially wedge-shaped and have reverse structures; the two standard block have reverse structures; after a circle of closed lining can be completed by splicing the six concrete prefabricated concrete segments, one ends, provided with bulges, of all segments in the circle are embedded in the cylindrical grooves of the spliced segments in the last circle so as to splice the segments. The prefabricated tunnel lining segment is mainly used for lining of the shield tunnel.

The voltage of 36-V battery (10) is dropped by the DC—DC converter (12) to charge the 12-V battery (14). The switching ON / OFF of the DC—DC converter (12) is feed forward controlled by the controlling portion (20). This can cope with the voltage change at the 36-V battery (10). The output voltage of the DC—DC converter (12) is feed back controlled by a differential amplifier (16) and PID (18) and feed back by the controlling portion (20).

The invention discloses a generation method and a device for a solenoid pilot actuated valve drive current, and is applicable to a fuel injection system of an engine. The method has the following steps: a high-end drive circuit is connected with one end of a solenoid pilot actuated valve via a sampling resistor; a low-end drive circuit is connected with the other end of the solenoid pilot actuated valve; an electronic control unit sends a summit current holding control pulse signal AH and a current feedback control pulse signal AF to a signal processing circuit, and a low-end drive circuit control pulse signal B to the low-end drive circuit; and the signal processing circuit compares the solenoid pilot actuated valve drive current fed back by the sampling resistor with a current corresponding to a reference voltage, and sends a control signal C to the high-end drive circuit. By adopting the technical scheme, the method and the device of the invention have the advantages of short opening time of the solenoid pilot actuated valve, simple and reliable hardware current feedback control circuits, high regulating frequencies, good anti-interference effect in use, low price and the total production cost.

The invention relates to a preparation method of modified asphalt, in particular to modified asphalt which is used on the road surface, belonging to the technical field of chemical materials. The invention has the beneficial effects of easy operation, low cost, low energy consumption and short solidification time, thus shortening traffic closing time and being beneficial for rapid and smooth traffic. The epoxy asphalt road surface materials prepared by the method in the invention feature high elongation; the anti-fatigue life is 10 to 30 times of that of ordinary asphalt under the action of equal fatigue stress; the epoxy asphalt road surface materials have good deformation ability and durability, have dramatic effects in preventing tracking under high temperature, resisting cracks under low temperature and resisting water damage in the rainy season and have good anti-fatigue property.

An IGBT die structure includes an auxiliary P well region. A terminal, that is not connected to any other IGBT terminal, is coupled to the auxiliary P well region. To accelerate IGBT turn on, a current is injected into the terminal during the turn on time. The injected current causes charge carriers to be injected into the N drift layer of the IGBT, thereby reducing turn on time. To accelerate IGBT turn off, charge carriers are removed from the N drift layer by drawing current out of the terminal. To reduce VCE(SAT), current can also be injected into the terminal during IGBT on time. An IGBT assembly involves the IGBT die structure and an associated current injection / extraction circuit. As appropriate, the circuit injects or extracts current from the terminal depending on whether the IGBT is in a turn on time or is in a turn off time.

An opening / closing valve (70) is provided in an oil feed pipe (43). When a liquid refrigerant enters from an oil separator (22) into the oil feed pipe (43), the temperature of the liquid refrigerant depressurized by the opening / closing valve (70) is suddenly lowered. When the lowering amount of the temperature detected by a temperature sensor (73) exceeds a prescribed value, it is judged that theliquid refrigerant enters into the oil feed pipe (43), and the valve (70) is closed.

The invention provides an H-bridge driving circuit. The circuit is characterized by comprising the following steps that: a photoelectric isolating circuit converts a received first pulse width modulation (PWM) signal into a second PWM signal and transmits the second PWM signal to a dead zone control logic module; the dead zone control logic module sets dead zone information according to the second PWM signal, and generates an upper bridge arm control signal and a lower bridge arm control signal according to the dead zone information and the second PWM signal, and the dead zone control logic module transmits the upper bridge arm control signal to an upper bridge arm front driving circuit and transmits the lower bridge arm control signal to a lower bridge arm front driving circuit; and the upper bridge arm front driving circuit and the lower bridge arm front driving circuit control the operation state alternation of a load driving circuit according to the upper bridge arm control signal and the lower bridge arm control signal respectively. The circuit can avoid the capacity effect in the voltage change process of an H-bridge circuit load unit and the output frequency of the H-bridge driving circuit can be increased.

The invention relates to reinforcing slurry for a semi-rigid base and a grouting method of the reinforcing slurry. The reinforcing slurry comprises the raw materials by mass percent: 95-99.7% of cement, 0.06-1.0% of water reducer, 0.1-0.3% of retarder, 0.03-0.07% of coagulant, 0.02-0.04% of plastic expanding agent, and 0-4.79% of mineral filler, and the reinforcing slurry is prepared through stirring the raw materials. The grouting method comprises the steps of locating hole sites at 0.25-meter positions of the periphery of a crack in the pitch, and drilling down at the hole sites to the top of a roadbed, wherein the distance between every two holes is 0.75-1.0m; adding water into a stirrer, then adding the slurry, wherein the mass ratio of water to slurry is less than or equal to 0.35, the stirring speed is greater than or equal to 500r / min, and the stirring time is less than or equal to 5 minutes; grouting into a grouting pipe, wherein the grouting pressure is 0.5-1.0MPa, and the time for stirring and grouting is less than or equal to 30 minutes; and after grouting, sealing the grouting holes with sealant or pitch. The reinforcing slurry has the characteristics of low cost, good fluidity, fast speed in condensation and high strength, and the grouting method is simple.

The invention includes steps: (1) guiding ship to pass through water gate, shiploading, generating operations if transferring containers or ports needed; transferring information through wireless terminals on LAN and asking motormen to find machine and taking tasks; (2) according to port of destination, types of containers and situation of ships and storage yard considered, making a plan for arranging containers on configuration drawing; (3) according to plan, placing containers at assigned places for freight space; (4) graphic operation interface workable by clicking and dragging mouse; (5) automatic recording quantity of work etc. as indicators for performance check. The invented system and method raises efficiency of wharf operation.

The current invention provides a controlled release oral solid formulation of levodopa comprising levodopa, a decarboxylase inhibitor, and a carboxylic acid. Also provided by this invention is multiparticulate, controlled release oral solid formulations of levodopa comprising: i) a controlled release component comprising a mixture of levodopa, a decarboxylase inhibitor and a rate controlling excipient; ii) a carboxylic acid component; and iii) an immediate release component comprising a mixture of levodopa and a decarboxylase inhibitor.

The invention discloses a compound PWM control method of a high-speed switching valve. The compound PWM control method of the high-speed switching valve is characterized in that the operation processof a valve core of the high-speed switching valve is defined as four stages which comprise a valve core opening stage, a valve core maximum opening maintaining stage, a valve core closing stage and avalve core closing and maintaining stage; in the valve core opening stage, the valve core is reliably opened by controlling the duty ratio of excitation PWM; during the valve core maximum opening maintaining stage, coil current is at an optimal value by controlling the duty ratio of high-frequency PWM, and the lowest power loss of a coil is ensured; and during the valve core closing stage, the coil current unloading is accelerated by controlling the duty ratio of reverse PWM, and valve core closing time is shortened. According to the compound PWM control method of the high-speed switching valve, a compound PWM signal is similar to a conventional PWM signal, the signal is only output through a hardware digital port, and the compound PWM control method of the high-speed switching valve has the advantages of high response, low power consumption and low cost.

An engine control unit (ECU) of an internal combustion engine performs energy changing control for changing a charging amount (an upper limit value of charging voltage, charging speed or target energy) to a piezo stack of a piezo injector in accordance with common rail pressure. During the energy changing control, the ECU contracts a command injection period as the target energy charged to the piezo stack increases so that actual injection end timing or valve closing timing of a nozzle portion is unchanged even if the target energy is changed. Meanwhile, the ECU delays command injection timing as the target energy increases so that actual injection start timing or valve opening timing of the nozzle portion is unchanged even if the target energy is changed.

The invention relates to the technical field of growth of single crystal silicon rods by lifting of a single crystal furnace, in particular to an automatic control method for a specific single crystal furnace, and particularly discloses an automatic tailing method for a CZ-80 single crystal furnace.By using an existing single crystal growth PLC (programmable logic control) system of the CZ-80 single crystal furnace, temperature adjusting and single crystal lifting speed parameters are set, the length and diameter of single crystal tailing are controlled, and automatic tailing of single crystal is achieved; tailing time in the growth process of single crystal silicon rods can be shortened, tailing efficiency can be improved, tail breakage rate upon tailing can be decreased, tailing capacity can be improved, tailing cost can be decreased, and a tailed shape is made attractive.

The venting valve assembly for casting moulds comprises a venting valve for closing a venting channel. The venting valve comprises a valve housing in which a closure member is received that is movable between an open position and a closed position. The closure member can be frictionally locked in its open position and simultaneously biased in closing direction. For frictionally locking the closure member, a chamber is provided that can be put under a hydraulic overpressure. The chamber has a wall portion that bulges towards the closure member in response to the overpressure. The wall portion is resilient such that it moves back to a position releasing the closure member once the overpressure in the chamber is reduced. For reducing the pressure in the chamber, a release valve is provided which is controlled by a sensor detecting any casting material penetrating into the venting channel. The biasing of the closure member in closing direction is performed pneumatically.

An IGBT die structure includes an auxiliary P well region. A terminal, that is not connected to any other IGBT terminal, is coupled to the auxiliary P well region. To accelerate IGBT turn on, a current is injected into the terminal during the turn on time. The injected current causes charge carriers to be injected into the N drift layer of the IGBT, thereby reducing turn on time. To accelerate IGBT turn off, charge carriers are removed from the N drift layer by drawing current out of the terminal. To reduce VCE(SAT), current can also be injected into the terminal during IGBT on time. An IGBT assembly involves the IGBT die structure and an associated current injection / extraction circuit. As appropriate, the circuit injects or extracts current from the terminal depending on whether the IGBT is in a turn on time or is in a turn off time.

The invention discloses a method for determining a dynamic change rule of dew point temperature of an attached layer of a radiant ceiling. The method comprises the following specific steps of: firstly, determining influence factors of the dynamic change rule of the dew point temperature of the attached layer; and secondly, performing simulation by utilizing ANSYSY software to obtain sample data, and then based on SAS software, obtaining the dynamic change rule of the dew point temperature of the attached layer with a multivariate regression analysis method: y=12.78891+0.31639xb+0.19712xc-0.12698xd, wherein y is the dew point temperature of the attached layer, b is wet dissipation strength, c is a relative distance between a fresh air inlet and a test point of the attached layer, and d is a relative distance between a wet source and the test point of the attached layer. According to the method, an indoor wet diffusion model is constructed, an interaction relationship among a water supply parameter of a radiant plate, an indoor thermal and humid environment parameter and the dew point temperature of the attached layer is deeply researched, and the dynamic change rule of the dew point temperature of the attached layer is proposed with a statistic analysis method.

This invention discloses an IGBT device with its collector formed with Ge / Al and associated method of fabrication. The collector is formed on the substrate layer, which is on the back of IGBT, and contains Ge and Al thin films. After thinning and etching the back side of IGBT substrate, Ge and Al are sequentially deposited to form Ge / Al thin films on the back surface of the substrate. An annealing process is then carried out to diffuse Al into Ge thin film layer to form a P-doped Ge layer functioning as the IGBT collector. The present invention is applicable to both non punch through IGBTs as well as punch through IGBTs.

The invention relates to a valve actuator (2), comprising a magnetic core (6) with an interspace (8) and at least one bifurcating branch (7), at least one variable magnetic field generating device (16), at least one permanent magnetic field generating device (13) and at least one movable magnetic component (12), wherein the bifurcating branch (7) defines a first region (4) and a second region (5) of said magnetic core (6). Said movable magnetic component (12) is movably arranged within said interspace (8) of said magnetic core (6) in such a way that a first gap (19) is formed between a first surface (23) of said movable magnetic component (12) and a first surface (22) of said interspace (8) of said magnetic core (6), a second gap (20) is formed between a second surface (24) of said movable magnetic component (12) and a second surface (25) of said interspace (8) of said magnetic core (6), and a third gap (21) is formed between a third surface (27) of said movable magnetic component (12) and a third surface (26) of said bifurcating branch (7) of said magnetic core (6). At least one of said variable magnetic field generating devices (48, 49) is associated with said first region (4) of said magnetic core (6) and at least one of said permanent magnetic field generating devices (13) is associated with said second region (5) of said magnetic core (6). Said valve actuator (2) is designed and arranged in a way that a magnetic flux, generated by at least one at least one of said variable magnetic field generating devices (16) is able to exert a force on said at least one movable magnetic component (12) and is able to cancel the magnetic flux (48, 49), generated by at least one of said permanent magnetic field generating devices (13). At least one magnetic flux limiting means (7, 12) is provided, whose magnetic flux limit can be reached or exceeded.