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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 11. Отображено 11.
04-03-2015 дата публикации

Ultrahigh pressure rotating sealed water jet cleaner

Номер: CN104384128A
Принадлежит:

The invention discloses an ultrahigh pressure rotating sealed water jet cleaner. The ultrahigh pressure rotating sealed water jet cleaner is characterized by comprising a driving mechanism, a rotary sealing mechanism, a water inlet connecting member, a spray head mechanism, an upper casing and a lower casing, wherein the upper casing and the lower casing are fixedly connected; the rotary sealing mechanism comprises a water inlet pipe connector, a sealing outer casing, a sealing inner channel, a supporting shaft sleeve, a sealing medium channel and a driven gear. According to the ultrahigh pressure rotating sealed water jet cleaner disclosed by the invention, rotary dynamic sealing of ultrahigh water jet flow is realized by combined seal of end face seal and clearance seal; the seal between an ultrahigh pressure static part and a rotating part can be effectively realized; the utilization rate of high-pressure water is improved; the effect of removing rust by water jet is improved.

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26-03-2014 дата публикации

Reciprocating plunger pump driven by plunger flow distribution double-acting linear motors

Номер: CN103670999A
Принадлежит:

The invention discloses a reciprocating plunger pump driven by plunger flow distribution double-acting linear motors. The reciprocating plunger pump comprises a shell, two linear motors, four plungers and four cylinder barrels, wherein the two linear motors and the four cylinder barrels are fixed in the shell; the shell is provided with a pumping outlet and a pumping suction inlet; the plungers and the cylinder barrels are equal in length. During working, linear motor movers are used for driving the plungers to move circularly in a reciprocating way by pulling or pushing in order to complete liquid suction and liquid extruding actions, and the motion difference between the two linear motor movers is a quarter period; the linear motor moves move in a reciprocating way once to complete one working cycle. Compared with a linear motor reciprocating plunger pump adopting a valve flow distribution form, the reciprocating plunger pump has the advantages that plunger flow distribution is adopted ...

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12-05-2010 дата публикации

Hydraulic system of horizontal buffer cylinder of forging and pressing operating machine

Номер: CN0101704059A
Принадлежит:

The invention discloses a hydraulic system of a horizontal buffer cylinder of a forging and pressing operating machine, which comprises an oil-feed port, a proportional pressure-reducing valve, a proportional directional valve, two safety valves, two check valves, a proportional overflow valve, an electromagnetic directional valve, a buffer cylinder, an oil return port, a displacement sensor and a displacement controller. The invention realizes the passive buffering of the buffer cylinder and the switching of an active feeding function through controlling the electromagnetic directional valve, realizes the control of passive buffering force through regulating the proportional overflow valve, realizes the control of active feeding force and buffering restoring force through regulating the proportional pressure-reducing valve, and realizes active feeding displacement and speed accurate control through the displacement closed-loop control of the proportional directional valve. The invention ...

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06-07-2011 дата публикации

Displacement-force compound control lifting system for forging manipulator

Номер: CN0102114517A
Принадлежит:

The invention discloses a displacement-force compound control lifting system for a forging manipulator. A port P of a proportional servo valve (2) is connected with an oil supply port (1) of an oil source; a port A of the proportional servo valve (2) is respectively connected with an inlet of a safety valve (3), an outlet of a check valve (4), an inlet of a stop valve (5), a pressure sensor (12) and lower cavities of two lifting cylinders; an oil return port (7) of the oil source is respectively connected with a port T of the proportional servo valve (2), an outlet of the safety valve (3), an inlet of the check valve (4), an outlet of the stop valve (5) and upper cavities of the two lifting cylinders; mechanisms at top ends of piston rods of the two lifting cylinders are fixedly connected; a displacement sensor (8) is internally arranged on the piston rods; and a signal output end of the displacement sensor (8), a signal output end of the pressure sensor (12) and a signal input end of the ...

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25-08-2023 дата публикации

Submersible attitude depth adjusting device based on phase change expansion

Номер: CN116639233A
Принадлежит:

The invention provides a submersible attitude depth adjusting device based on phase change expansion, and relates to the technical field of underwater environment detection.The submersible attitude depth adjusting device comprises a control module and a plurality of phase change expansion units which are arranged on a submersible, the control module is connected with the phase change expansion units, and the phase change expansion units are arranged at the buoyancy center plane position of the submersible; the control module collects attitude information of the submersible and dispatches the heating power of the heater in each phase change expansion unit based on an attitude information command. The phase change expansion unit is heated and subjected to phase change due to the change of heating power, so that buoyancy is generated by changing the drainage volume; all the phase change expansion units jointly generate overturning moment or upward buoyancy at the gravity center of the submersible ...

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06-07-2011 дата публикации

Hydraulic parallel driving system for fore-and-aft lifting of forging manipulator

Номер: CN0102114516A
Принадлежит:

The invention discloses a hydraulic parallel driving system for fore-and-aft lifting of a forging manipulator. The P port of a nonsymmetrical proportional servo valve (2-1) is respectively connected with an oil supply port (1) of an oil source and the P port of a symmetrical proportional servo valve (2-2); the A port of the nonsymmetrical proportional servo valve (2-1) is respectively connected with the A port of the symmetrical proportional servo valve (2-2), the inlet of a lower cavity safety valve (3-2) and the like; the B port of the nonsymmetrical proportional servo valve (2-1) is respectively connected with the inlet of an upper cavity safety valve (3-1), the outlet of an upper cavity one-way valve (4-1), the inlet of an upper cavity cut-off valve (5-1) and the like; the B port of the symmetrical proportional servo valve (2-2) is plugged; an oil return port (7) of the oil source is respectively connected with the T port of the nonsymmetrical proportional servo valve (2-1), the T port ...

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17-06-2015 дата публикации

Attracting type underwater cyclotomic machine

Номер: CN104708114A
Принадлежит:

The invention discloses an attracting type underwater cyclotomic machine which comprises a waterproof motor, a transmission mechanism, a high pressure water cyclotomic mechanism, a winding preventing mechanism and an attracting supporting mechanism. The attracting supporting mechanism comprises magnets fixed in supporting legs, the supporting legs are installed on a base, a bearing rod is vertically arranged in a sleeve of the base, the transmission mechanism is connected to the bearing rod, the waterproof motor is arranged on a transmission box, and an output shaft is a hollow shaft. The high pressure water cyclotomic mechanism comprises a vertical rod, a horizontal rod and a nozzle, wherein the vertical rod is connected to the output shaft, the horizontal rod is connected to the vertical rod, and the nozzle is connected to the horizontal rod and connected with a high pressure hose. The winding preventing mechanism comprises a rotary pipe connector, the lower end of the rotary pipe connector ...

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30-05-2023 дата публикации

Valve element clamping stagnation eccentricity self-detection electromagnetic valve based on magnetic field intensity difference value

Номер: CN116181728A
Принадлежит:

The invention discloses a valve element clamping stagnation eccentricity self-detection electromagnetic valve based on the magnetic field intensity difference value. The valve element clamping stagnation eccentricity self-detection electromagnetic valve comprises a valve block and a valve element. The valve core comprises a cylinder I, a cylinder II and a cylinder III; a permanent magnet is fixed at the lower half part of the cylinder III; a first linear Hall element, a second linear Hall element, a second linear Hall element and a fourth linear Hall element are respectively fixed in the horizontal equidistant threaded holes; the external measuring circuit I, the external measuring circuit II, the external measuring circuit III and the external measuring circuit IV respectively measure the output voltage of the linear Hall element, the output voltage is inversely proportional to the distance between the Hall element and the permanent magnet, the valve core can drive the permanent magnet ...

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16-09-2015 дата публикации

Line pressure shift reaction type cylinder buffer

Номер: CN0204646863U
Принадлежит:

The utility model discloses a line pressure shift reaction type cylinder buffer, including the buffering end cover with fix the cylinder at buffering end cover front end, be equipped with the piston that has the piston rod in the cylinder, be fixed with the buffer plunger on the piston, the tip of buffer plunger stretch into buffering end cover tip, with the port of piston cavity intercommunication in, its characterized in that: the buffering end cover includes the end cover main part, is provided buffering case and adjusting screw in the end cover main part, the end cover main part is equipped with the pressure feedback entry, and pressure feedback entry process pressure feedback hole links to each other logically with the lower cavity of case cavity, the top in pressure feedback hole is equipped with earial drainage upper reaches hole, and vertical section feeds through with the earial drainage low reaches hole of the well cavity of process case cavity mutually, and the last cavity of ...

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15-06-2011 дата публикации

Hydraulic system of horizontal buffer cylinder of forging and pressing operating machine

Номер: CN0101704059B
Принадлежит:

The invention discloses a hydraulic system of a horizontal buffer cylinder of a forging and pressing operating machine, which comprises an oil-feed port, a proportional pressure-reducing valve, a proportional directional valve, two safety valves, two check valves, a proportional overflow valve, an electromagnetic directional valve, a buffer cylinder, an oil return port, a displacement sensor and a displacement controller. The invention realizes the passive buffering of the buffer cylinder and the switching of an active feeding function through controlling the electromagnetic directional valve, realizes the control of passive buffering force through regulating the proportional overflow valve, realizes the control of active feeding force and buffering restoring force through regulating the proportional pressure-reducing valve, and realizes active feeding displacement and speed accurate control through the displacement closed-loop control of the proportional directional valve. The invention ...

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20-02-2008 дата публикации

Hydraulic pressure type double-piston single-cylinder pressure exchange energy reclaiming device

Номер: CN0101125693A
Принадлежит:

The invention discloses a hydrostatic double-piston single-cylinder pressure exchange and energy recovery device. The device consists of a double-piston hydraulic cylinder and two two-position four-way electro-hydrostatic reversing valves. The device is characterized in that the double-piston hydraulic cylinder is a pressure exchange device, and high-low pressure fluids exchange pressures directly through a piston, and the area ratio of rod end chamber and non-rod chamber of the double-piston hydraulic cylinder is rationally designed to increase voltage. Adopting the double-piston hydraulic cylinder, the device accomplishes two working processes of increasing pressure and in-taking fresh raw water at the same time, which greatly reduces the pressure flow fluctuation. The two pistons in the double-piston hydraulic cylinder are rigidly connected with each other by a cylinder rod without a view to the synchronicity of movements. The switching between a high pressure pathway and a low pressure ...

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