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Liquid cooling system for multiprocessor computation complex, package and heat sink module Liquid head sink module comprises top and bottom parts soldered together. Rectangular recesses are cut on the surface of said parts and shaped to pcb electronic components to be fitted therein thereafter. Said module is provided with inner feed and discharge channels. Note here that one end of feed and discharge hoses are rigidly connected by one-piece union with heat sink module. Opposite end of said hoses are connected to inlet and outlet unions of pipelines to feed and discharge heat carrier via fast-release connector. Note also that said package comprises pcb of electronic components mounted on both sides of said heat sink to ensure optimum interface and thermal interface material arranged between heat sink and pcb electronic components. |
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Method of electronic system cooling in mechanical hardware, particularly, in gearboxes Invention relates to cooling of electronic components, particularly, those of gearboxes. Proposed method is based on cooling of electronic unit (20) arranged in hardware chamber (11) located inside the housing of gearbox (1) by coolant flow circulating through water jacket. At the same time said coolant jets are measured by turbine connected with pulse magnetic transducer. Besides, temperature transducer measures coolant temperature. When coolant does not flow through water jacket and/or coolant temperature exceeds preset threshold signalling system is switched on and/or electronic unit (20) is switched off. |
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Device for positioning the object comprises the means for angular orientation, consisting of the fixed and movable parts, and the means for vertical supplying, connected to the movable part of the means of angular orientation. The means for angular orientation provides the angular orientation of the object relative to two intersecting mutually perpendicular horizontal axes and can be made in the form of a spherical hinge. The means of vertical supplying provides the movement of the object relative to the movable part of the means of angular orientation along the vertical axis and can be made in the form of a linear electric motor or piezo-drive actuator. |
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Heat sink and unit for flat bodies, providing for cooling and assembly Invention relates to power electronics, more specifically, to up-to-date cooling of power electronics. The result is achieved by a heat sink (300), designed for direction cooling of at least one body (20) of an electronic device. The body of the electronic device has an upper contact surface (22) and a lower contact surface (24). The heat sink comprises a cooling element (310), made at least from one heat-conducting material. This cooling element limits inlet headers (12) of coolant and outlet headers (14) of coolant. Inlet and outlet headers are located with alternation. The cooling element additionally limits millichannels (16) made as capable of receiving coolant from inlet headers and supplying coolant to outlet headers. Millichannels, inlet and outlet headers are additionally made with capability of direct cooling of one of contact surfaces of the electronic device body, upper or lower on, due to direct contact with coolant, so that this heat sink is made as a whole. |
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Device of conditioning for cooling of air in cabinet for electronic devices Invention relates to a device of conditioning for air cooling in a cabinet for electronic devices. The conditioning device comprises a body with the first side and the second side, opposite to the first side, a device for air supply and a heat exchanger. The device for air supply sucks air at the first side, sends it via the heat exchanger to the second side and releases it in the radial direction at the second side. The heat exchanger is connected with the inner or outer cooling device for supply of cooled cooling medium into the heat exchanger. |
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System of heat control for electronic display Invention relates to cooling systems, and, in particular, to cooling systems for electronic displays. In a cooling unit for an electronic image unit and a display unit that comprises it, in some versions of realisation they use ambient gas for cooling of power supply modules and/or the image unit (sometimes back lighting). In other versions they use a closed circuit of circulating gas, which passes along the front surface of the image unit and via a heat exchanger. The open circuit passes via the heat exchanger and extracts heat from the circulating gas. Atmospheric air may be used as ambient gas. For cooling of the rear section of the image unit or back lighting with the help of ambient gas they may use a non-obligatory additional channel. In some versions of realisation they also use heat-conducting plates and ribs to distribute heat and to exclude hot points in the display. |
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Composite for electromagnetic shielding Invention relates to composite for electromagnetic shielding, which contains copper foil and resin film laminated on it. Composite for electromagnetic shielding, containing copper foil, which has thickness 5-15 mcm, Ni coating on one surface of copper foil with amount of coating 90-5000 mcg/dm2, layer of Cr oxide, formed on the surface of Ni coating at 5-100 mcg/ dm2, basing on Cr weight, and layer of resin, laminated on opposite surface of copper foil. |
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Group of inventions relates to heat exchange and can be used for cooling of air or equipment, as well as for waste heat utilisation. As per one of the versions, a heat-to-cold conversion device includes the first heat exchanger 2, steam generator 3, liquid heat carrier (cooling agent) 4, a thin plate with hole 5, condenser 6, grid 7, the second heat exchanger 8, overflow valve 9, vertical pipeline 10, counter pressure valve 11, dosing mechanism 12, turbine with magnetic coupling 13, fan 14, the second thin plate with hole 15, and solar collector 16. |
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Light-emitting diode module cooling system Invention relates to radio electronics and can be used in designing efficient cooling systems of powerful LED modules. The LED module cooling system consists of a heat-removing base merged with a heatsink made of microporous material with microchannels and filled with a liquid coolant and LEDs mounted thereon. The microchannels are located in the heat-removing base under the LEDs perpendicular to the mounting plane of the LEDs, wherein their ends adjoining the LEDs form, in maximum proximity to the p-n junctions of the LEDs, a surface which intensifies boiling and evaporation due to a layer of microporous material deposited between each LED and the end of the adjoining microchannel, wherein the size of the pores of the microporous material is considerably smaller than that of pores of the material filling the heat-removing base of the LED module, wherein the size of the pores of the microporous material decreases towards the LED. The system requires one-time filling with liquid and is less sensitive to variations of the initial volume of the liquid. |
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Heat removal device consists of a housing with a heat sink, elastic elements, which are arranged in it and installed between the heat sink and a heat-stressed electronic module, a heat-conducting structure located between the heat sink and the heat-stressed electronic module; the heat sink has finning and inclined surfaces and is installed by means of fastening assemblies in the housing wall; on outer and inner surfaces of the heat sink there are heat-conducting gaskets, and elastic elements are located between the heat sink and the housing. |
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Cascade light-emitting thermoelectric unit Light-emitting thermomodules are used. A light-emitting thermomodule allows reducing parasite conductive transfer from the hot junction side, which is heated not as mush as that due to the fact that some part of energy is taken away in the form of an emission, and it is not converted to heat on the hot junction. Reduction of heat transfer by conduction between hot and cold junctions allows performing p-n-junctions and the junctions themselves in the form of thin films. Structure of the thermoelectric device represents a cascade (multilayer) thermomodule consisting of thermomodules, in which such materials of semiconductor branches of p-type 4 and n-type 5 are chosen that the flowing current on one of the junctions 2 will form emission, and not heating as in a common thermomodule; with that, in other junction 3 there will be absorption of heat energy in compliance with Peltier effect. Cascades are separated with electrically-insulating layers 1 with high transparency and heat conductivity. Direct current is fed from source 6. |
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Condensation thermoelectric cabinet In a device consisting of a tightly packed sealed housing, two and more injectors serving for injection of a mixture to an internal cavity of the cabinet; a highly heat-conducting plate with an installed heat-emitting equipment; a thermoelectric unit; a pin fin heat sink; a fan unit; a control unit (CU); a condensate flowdown chute; a pump serving for supply of condensate to injectors; a temperature sensor; a protective casing, it is proposed to use an evaporation and condensation cooling principle. The temperature sensor supplies a signal to CU that includes a pump for liquid supply to injectors located on the cabinet ceiling. The mixture is injected to the internal cavity of the cabinet and deposited on heat-emitting elements; its evaporation process takes place, therefore, cooling of heat-emitting elements is achieved. When vapours of the mixture go upwards, they are condensed on the ceiling (upper part of the cabinet) that is technically inclined to the rear part of the cabinet for directed condensate flowdown onto a special chute located throughout the length of the rear wall. Then it enters CU, in which the pump is installed. The mixture is supplied again to the injections through liquid channels under action of the pump. In order to amplify condensation properties of the evaporated liquid, the thermoelectric units are used, the cold junctions of which are in close contact with the upper cover of the cabinet, and the installed pin fin heat sink that is in the same close contact with the junctions of the thermoelectric units, but is on the hot side, performs heat removal. The fan unit consisting of four fans is controlled by the control unit (CU) that provides the possibility of their paired actuation for the purpose of electric energy saving. |
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Equipment mounting frame comprises two side support structures of a selected height, wherein each side support structure (a) comprises one or more upright working members defining the width of that side support structure and (b) comprises a foot structure extending from at least one end of the upright working member(s). The foot structure defines the depth of that side support structure and extends across at least one quarter, preferably at least half, more preferably at least three quarters, especially preferably substantially all of the said width, and (c) carries an upright group or row of fixing members, wherein the two side support structures are connectable together at a distance from each other to enable equipment trays or blocks to be mounted in assembled array between the side structures through said fixing members. Each of said side support structures each with the said foot structure(s) extending therefrom is formed to be nested together when disconnected from each other for shipment or storage within a volume less than twice the volume defined by said width, depth and height. |
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Method of making clock-face base Body with a peripheral area, a central area and a holder is made. The holder is placed on the peripheral area. The holder is made in form of a front post, a back post and an embedded cavity situated between the front post and the back post. The central area is formed by a front bottom and a rear bottom, facing each other to form a cavity. The front post is attached to the boundary of the rear bottom and is directed perpendicular to the rear bottom. The back post is attached to the boundary of the front bottom and is directed perpendicular to the front bottom. The front post and the back post are situated opposite each other, linked with each other and are configured for mutual flexible separation or the front post is configured for flexible separation, or the back post is configured for flexible separation. |
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Clock-face base has a body with a peripheral area, a central area and a holder placed on the peripheral area. The holder is in form of a front post, a back post and an insert cavity situated between the front post and the back post. The central area is formed by a front bottom and a rear bottom, facing each other to form a cavity. The front post is attached to the boundary of the rear bottom and is directed perpendicular to the rear bottom. The back post is attached to the boundary of the front bottom and is directed perpendicular to the front bottom. The front post and the back post are placed opposite each other, linked with each other and are configured for mutual flexible separation or the front post is configured for flexible separation, or the back post is configured for flexible separation. |
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Procedure for cooling of electronic equipment and system for implementation of this procedure In the procedure for electric equipment cooling delivery of cooling air is made with use of cooling air ionisation, at that concentration and polarity of air ions is selected do that no static charge accumulation of triboelectric origin takes place at components of cooled electronic equipment. For the purpose of this procedure implementation the system is used which contains air duct (1) to generate a flow of cooling air through electronic equipment (2) and fan (3), cooler (4) and device (5) for cooling air humidity regulation which are installed in-series before the cooled equipment. At that the system is equipped with ioniser (6) to saturate cooling air with ions which is installed between device (5) for cooling air humidity regulation and cooled electronic equipment (2) and the device for cooling air humidity regulation is made as air drier. |
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Electronic unit (1) for use in an electric tool has a box-like element (6) with a bottom part and lateral parts (61), a flat-topped cooling element (5) with a closing part (51) and sidewalls (52) and a printed-circuit board located in the box-like element (6) and fixed on the cooling element (5) by a fastening element, wherein the flat-topped cooling element (5) is placed on the box-like element (6) such that a hole in the box-like element (6) situated opposite its bottom part is partially closed by the closing part (51) of the cooling element (5), with part of the hole in the box-like element (6) remaining open. |
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Pressure compensator contains the first chamber (6) of sylphon including the first part (7) of sylphon. The first chamber of sylphon is connected to insulating medium or fluid of submerged plant chamber, walls of the first chamber (6) of sylphon are made with possibility to separate insulating medium from ambient medium. The first chamber (7) of sylphone is enclosed by the second chamber (8) of sylphone containing the second part (9) of sylphone. The second chamber (8) of sylphone is designed to form enclosed interspace around the first chamber (6) of sylphone. Walls of the second chamber of sylphon are designed with possibility to separate at least some parts (7) of sylphone of the first chamber (6) of sylphone from surrounding sea water. The second chamber (8) of sylphone is filled with intermediate medium (10). |
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Heat-conducting installation element for attachment of printed-circuit board to radiator Heat dissipation device for heat-radiating electric component (10) includes heat-radiating electric component (10) arranged on printed-circuit board (20) in thermal contact with heat-conducting layer (23) of printed-circuit board (PCB). Heat-conducting installation element (40) is attached to heat-conducting layer (23) by soldering and has connecting part (43) having the possibility of being engaged with cavity (31) in radiator (30); thus, providing attachment of PCB (20) to radiator (30); at that, thermal contact is provided from heat-radiating electric component (10) through heat-conducting layer (23) and installation element (40) to radiator (30). As a result of application of a heat-conducting installation element, there can be achieved heat dissipation with PCB equipped with one heat-conducting layer, and not multilayered PCB that is required in devices of previous level of technologies. |
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Welding parameter i/o device mount for welding set Invention relates to mount 29 of welding parameter I/O device 18 for welding set 1. Said mount is composed of elastic element or film 30 with two recesses 33 for fitting on two rotary handles of device 18 with first part 38 and second part 39. First part 38 of every recess 33 makes a passage for rotary handle 34. Second part 39 of every recess 33 serves to retain rotary handles 34 between two rotary axles 37. Extra data 31 and/or scale 32 is applied on aforesaid element. |
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Air-cooled device housing has a cooling system formed by an inlet opening and outlet openings, a bottom cover, inner and outer left-side, right-side and rear walls, as well as a double top cover, forming closed inner and outer loops and adapted to allow passage of a cold air stream between the inner and outer walls, wherein lateral inner walls are in form of heat sinks. The outlet openings are made on the front panel and the inner top cover is in form of a heat sink. Double partition walls are mounted inside the housing such that a cooling air stream can pass between them and the partition walls are mounted so as to form at least two main compartments and one additional compartment. Inside each main compartment there is at least one functionally assembled heat-removing element which is made in form of an radioelectronic module with heat removal, mounted by heat removal contact surfaces on the inner lateral wall of the housing or partition wall and mounted tightly to inner surfaces thereof, and by the front contact surface to the surface of the inner top cover of the housing. At least one radioelectronic module is mounted in the additional compartment. |
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Liquid cooling system of mobile object System is intended for cooling of units heated during the operation by means of liquid circulating in the system, for example: in mobile radar stations for cooling of antenna phased array during radio emission. The system includes additional similar cooling units installed near each other and operating parallel and irrespective of each other. Heat exchangers of each of those devices are equipped with a suction air line on the lower side. Under the front panel of each of the units there arranged in turn is a frame with tension tie-rods for retraction of each cooling unit out of the common housing of the cooling system with the device providing avoidance of its being turned over from the frame after its full retraction. |
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Method of increasing heat dissipation and radiation protection of electronic components Amorphous element placed in an elastic packet is placed between two printed-circuit boards; a double-sided compression force is applied onto the printed-circuit boards, enabling to form a "mirror" surface relief of the amorphous element, and then held for a given time until it hardens, wherein the amorphous element is obtained by mixing a hardener with metal-containing filler in ratio of 1:(1-3). |
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Monitoring and control panel comprises a housing 1, a block of electrical elements 2, a block of connectors 3. The housing 1 at the upper part is equipped with a detachable panel 4 for placement of control elements 5, light signalling hardware 6 and safety devices 7. At the lower part the housing 1 is equipped with a welded bracket 8 for placement of the control panel on the panel 9 of the cabin of the specialised vehicle. The bracket 8 is made in the form of a plate bent with the ability to form two shelves 10 and 11. On the shelf 10 the location holes 12 are made, and in the middle of the shelf 11 the tube 13 is placed on which ends perpendicular to its axis two plates 14 are placed with location holes 15. On the back surface of the shelf 11 a corner 16 with an opening 17 is located. The light signalling hardware 6 is placed in the holders 18 made of a dielectric press material with lobes 19 reinforced into the reinforced press material. |
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Recoverable data storage has a housing, a recoverable capsule with a data storage which is electrically connected by a quick-release connection to an on-board control system, an apparatus for longitudinal fixation of the recoverable capsule and a piston system of a pneumatic pusher with a gas generator. The apparatus for longitudinal fixation is in form of a ball lock. The piston of the pneumatic pusher system is merged with the bottom part of the recoverable capsule and is made in form of a cup and is provided with an outer annular groove which accommodates balls. Components of the apparatus for longitudinal fixation of the recoverable capsule are placed in a central opening at the bottom of the housing. The outer annular groove on the cup has a conical end. |
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In a system of pipelines and equipment (3, 4, 5) for a cooling fluid in a certain zone of low pressure a working pressure is pulled, which is lower than the pressure of atmospheric air. Working pressure may be, for instance, in the range from 20 to 900 mbar. The cooling device has a low pressure device (10) in the cooling fluid system with a vacuum pump (14) and a pneumatic circuit breaker (13), in particular, a double-stage differential pneumatic circuit breaker, which controls an electromagnetic valve at the side of vacuum (15) and an electromagnetic valve at the side of the fluid (16). |
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Multilayer electromagnetic shield for protecting photomultipliers and method for deposition thereof Multilayer electromagnetic shield according to the invention is in form of a coating of successively deposited magnetic and nonmagnetic layers, wherein the thickness of the nonmagnetic layer is selected in the range of 1-25 mcm, the thickness of the magnetic layer is selected in the range of 6-250 mcm, wherein the total thickness of the magnetic layers is 300-500 mcm and the total number of magnetic and nonmagnetic layers is in the range of 3<Nmagn+Nnonmagn<99, wherein Nmagn=Nnonmagn+1. |
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Closed system of heat-dissipating equipment cooling Proposed comprises housing divided by heat shield into hot and cold compartments to place one portion of IT-hardware in cold compartment and another portion in hot compartment. System incorporates also internal air conditioner with blower. Said housing is made from impermeable outer shell with high heat conductivity and inner shell with low heat conductivity. Area is formed between said shells communicating via first hole with cold compartment and, via second hole, with hot compartment. Air conditioner with blower displace cold air in closed circuit including first hole, cold compartment, IT-hardware, hot compartment, second hole, and are between housing internal and eternal shells. |
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Cooling device for electronic components Invention can be used normalising temperature of electronic components, particularly central processing units (CPU) of modern computers, which are meant for installation in street conditions or in rooms with unfavourable ambient conditions: high dust content, high humidity, as well as at high temperatures. The cooling device for electronic components has a housing on the outer surface of one of the vertical walls, which are the heatsink, of which there are heat-scattering fins, and inside the housing there is a base heat-transfer unit meant for contact with the heat-loaded electronic components; the base heat-transfer unit is connected to heat pipes with a capillary-porous structure, which are connected to the heatsink; part of the heat pipes lies above the base heat-transfer unit (ascending heat pipes) and the other part lies below the base heat-transfer unit (descending heat pipes); the pore radius of the inner structure of the ascending and descending heat pipes is different and is selected based on a condition of compensation for the effect of gravitational force on heat transfer characteristics; the pore radius of the inner structure of the ascending and descending heat pipes is selected from the following condition: where ρ is the density of the heat carrier; g is gravitational acceleration; RH is the pore radius in the capillary structure of descending heat pipes; RB is the pore radius in the capillary structure of ascending heat pipes; hB is the height of the heat-removing part of the ascending heat pipes over the base; hH is the height of the heat-removing part of the descending heat pipes below the base. |
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Radio interference module consists of "П"-channel, heat removal walls, upper cover plate, lower cover plate, connector, radiating antennae and elements that form and amplify interference signals and are arranged on heat removal walls. "П"-channel represents a front wall, side heat removal walls and a rear heat removal wall. Front wall is plain on outer side with arranged radiating antennae. Side walls and rear heat removal wall are provided with cooling ribs on outer side, with cross-shaped slots on inner plain surface, which are intended for installation of metal planks with threaded holes to fix the elements forming and amplifying interference signals. Inner surface of front and rear heat removal walls is provided with a flange with a T-shaped slot for fasteners in the form of a nut. Radiating antennae are arranged on outer surface of front wall of "П"-channel. Upper and lower cover plates have holes to be fixed on installation frame of transmitting tower, a plank with a slot for introduction of an axis having cross-shaped surface, and contact end surfaces of "П"-channel at action of fasteners in the form of screws on "П"-planks arranged on inner surfaces of front and rear heat removal walls of "П"-channel. Axes with fasteners in the form of screws, which pass across cross-shaped surface, have the possibility of being moved in cross-shaped slot of heat removal wall by entering the slot of planks arranged on upper and lower cover plates and fixed in retracted position with fasteners. |
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Heat shield for electronic memory module Heat shield for electronic memory module has a housing 1 with a cover 2 made of metal, wherein inner surfaces of the housing 1 form a compartment for accommodating at its centre an electronic memory module 3 with a connecting cable 4, a passive heat insulation layer adjoining the inner surface of the housing 1 and being in form of cup 5 with a cover 6, an active heat insulation shell made from a composite mixture in form of a detachable component, wherein the active heat insulation shell consists of a housing 7 having inside it the electronic memory module 3 and a cover 8, joined to each other by surfaces having the shape of a flattened cone, wherein the housing 7 and the cover 8 of the active heat insulation shell are in sealed packaging 9, 10 made from polyethylene, for protecting the inner surface and from aluminium foiled-coated polyethylene for protecting the outer surface of the active heat insulation shell. |
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Device to remove heat from electronic elements Device to remove heat from electronic components includes radiator plates fixed to each other, connected to a base and forming a heat-distribution surface, at the same time along perimetre of each radiator plate, in areas of their contact with the base and to create flows removing heat from the device there are bends, on the bends of the inner side of each plate there are windows made, and on trapezoidal bends perpendicular to the longitudinal axis of the device, there are lock joints made, comprising two elements, one in the form of a hole on the bend, the other in the form of a ledge on the same bend arranged opposite to the hole, at the same time the device is equipped with an outer shell connected in a contact manner with the ledge arranged on the outer side of each plate. Windows arranged on bends are made equal to 0.4-0.9 of bend height along height. For even distribution of heat flows in the body of each radiator plate there are holes. |
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Bracket to install panel computer on movable object Bracket for installation of a panel computer on a movable object comprises a stand arranged in the form of a [-shaped bracket, in which there is a rectangular window arranged, and where there are sliding supports installed. The bracket is arranged on the rectangular board. The sliding support is arranged as split with two coaxial holes perpendicular to a support hole and displaced relative to it. Besides, one hole is arranged as threaded, and the other hole is arranged with larger diametre. The rotary bracket is made from two similar [-shaped stands with recesses, a window and setting holes, arranged at the edges of a platform equipped with a rectangular window. At the reverse side of the platform there are support brackets. One support bracket has a ledge on the outer end surface in the zone of the support hole. Sliding supports of the stand and support brackets of the platform are coupled by means of the axis having a collar with a flat at one end. At the other side the axis is limited against axial displacement with a washer screwed to the end surface of the axis. The threaded hole of the split support is coupled with a response threaded surface of the rotary fixator, on the opposite end of which there is a handle fixed. The panel computer is fixed in setting holes of [-shaped stands. |
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Displacement mechanism includes two structural elements having the possibility of mutual simultaneous linear displacement, cylindrical roller having the possibility of being rotated about its longitudinal symmetry axis perpendicular to axis of mutual displacement of structural elements, and free linear displacement along axis of mutual displacement of structural elements, and two groups of flexible links, which envelope the cylindrical roller along some part of length of circle of its cross section in opposite directions so that ends of flexible links are located parallel to axis of mutual displacement of structural elements and rigidly fixed on them. Number of flexible links at least in one of the above groups is not less than two. Besides, one of the ends of each flexible link is fixed on one structural element, and the other end is fixed on the other structural element. Flexible links have the shape that provides the possibility of rotating the cylindrical roller through an angle of more than 360° without slipping relative to those. |
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Device and method of heat dissipation in well tool Device includes hold-down unit having inlet fluid medium opening, which is connected in detachable manner to outlet fluid medium opening of well tubular element, outlet fluid medium opening, which is connected in detachable manner to inlet fluid medium opening of well tubular element, and channel passing between inlet fluid medium opening of hold-down unit and outlet fluid medium opening of hold-down unit and including the inward passing projection intended for heat transfer from the heat-generating element to fluid medium flowing through the channel. |
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Invention relates to structural components of devices. The recoverable data medium has an on-board housing, a recoverable capsule with a data medium, electrically connected by a quick-disconnect connector to an on-board control system, a device for detecting axial displacement of the recoverable capsule in the on-board housing, a piston system for a pneumatic pusher with a gas generator and a device for actuating the gas generator. The quick-disconnect connector is placed in the sealed chamber of the pneumatic pusher, which is formed by its movable part, which is integrated with the bottom part of the recoverable capsule in form of a case with a central opening, sealed by the bushing of the quick-disconnect connector, and reciprocal to the fixed part of the pneumatic pusher at the bottom of the on-board housing which appears as a hollow rod encircled by the case, through the central opening of which on the side of the cavity of the article there is a sealed inlet for electrical connection with the on-board control system. The chamber of the pneumatic pusher is linked by an internal channel made in the bottom of the on-board housing to the chamber of the gas generator and the chamber of the device for actuating the gas generator. |
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In a cooling device, having a housing made from heat-conducting material, compartments filled with heat-absorbing material which changes physical state when heated, made in form of hollow cylinders lying coaxially along the longitudinal axis of the housing, separated from each other by fins which expand towards the cooled surface, lying along the inner side surfaces of the compartments, and a cavity for accommodating the object, which is formed between the inner side surfaces of the compartments. On the outer side surface of the housing there is an additional compartment filled with heat-absorbing material which changes physical state when heated, whose phase transition temperature is lower than that of the material filling said compartments. In the second version, on the inner side surface of the housing there is an additional compartment filled with heat-absorbing material which changes physical state when heated, whose phase transition temperature is lower than that of the material filling said compartments, the cavity for accommodating the object lies inside the cylinder of the additional compartment, and the fins expand towards the additional compartment. In the third version, on the inner side surface of at least one compartment there is an additional compartment in form of a hollow cylinder filled with heat-absorbing material which changes physical state when heated, whose phase transition temperature is lower than that of the material filling said compartment, and the cavity for accommodating the object lies inside the cylinder of the additional compartment. In the fourth version, on the outer side surface of at least one compartment there is an additional compartment in form of a hollow cylinder filled with heat-absorbing material which changes physical state when heated, whose phase transition temperature is lower than that of the material filling said compartment, and the cavity for accommodating the object lies inside the cylinder of the additional compartment. |
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Portable reference laser and laser accessories Laser has a housing and a pendulum unit inside the housing. The pendulum unit comprises a pendulum support which can be turned in a support bearing unit, and a pendulum bob mounted below the pendulum support. The laser unit is mounted in said pendulum unit such that the laser forms at least one level line or plumb line when the pendulum unit is in an unfixed position. A pendulum retention mechanism is included in the device in order to block the laser unit in fixed mode. In the fixed mode, the laser unit is in a fixed position regardless of the orientation of the laser. Said pendulum retention mechanism has an actuating arm for the pendulum locking mechanisms which includes a pair of L-shaped recesses and a pair of turning pendulum locking mechanisms, each having a rod which corresponds to one of said L-shaped recesses. |
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FIELD: electrical technology. SUBSTANCE: invention relates to the electrical engineering in particular to screening devices from electromagnetic fields designated to increase screening properties of screening devices which do not alter during the period of the operation and at mounting of the screen; the invention makes it possible to mount the screen immediately without any additional elements what is secured due to the electromagnetic screen consisting of ribbons of amorphous metal alloy being fixed relatively each other, each ribbon is made in the “Г2” shape and represents an electric connector with the one side being a finger and the other - a socket, herewith the screen is assembled via inserting the finger part into the socket part. EFFECT: enhancement of the screening properties of screening devices. 1 dwg |
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FIELD: physics. SUBSTANCE: invention relates to protection of the measuring technique from the influence of low frequency magnetic fields and it can be used for screening devices that located near high-voltage equipment. The invention is directed to increase the effectiveness of screening that provided by the fact that the magneto-screen is in the form of a closed shell surrounding the shielded cavity. Besides the shell is made of two layers while the inner layer is made of ferromagnetic material and the outer layer is made of conductive material and it closed in planes perpendicular to the directions of the external magnetic field. EFFECT: increasing the effectiveness of screening for measuring technique from the influence of low frequency magnetic fields. 1 dwg, 6 dwg |
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FIELD: measuring equipment. SUBSTANCE: scale actuator comprises stops, a bearing part, the first spring, a pivot where a handle is positioned on one end and a gearbox gear of the actuator with a grappling device is positioned on another end. According to the device the spiral and the cylindrical sections are located on the handle end of the pivot. The pivot end with the spiral and the cylindrical section is situated inside the handle which has a rim with a centre hole. The first bushing is screwed on the pivot spiral section, and a safety nut is fastened end-to-end to the bushing. The second bushing with a central hole is installed on the cylindrical section of the pivot. The second spring is installed on the pivot between the faces of the two bushings. The disk with a centre hole is installed between the second bushing and the ledge. The cylindrical pivot section, the centre hole of the disk and the second bushing have flattened surfaces, and the flattened surface on the pivot interacts with the flattened surfaces on the disk and on the second bushing. EFFECT: scale actuator reliability increase; size reduction. 2 dwg |
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Protective screen against impact of electromagnetic radiations In a protective screen a body is made in the form of vertical and horizontal surfaces joined to each other, between which there is a screening element made in the form of a honeycomb straightener. At the same time according to the invention the shape of honeycomb straightener cells represents a regular hexagon or a hexagon with unequal ribs in a cross section perpendicular to a cell axis: four pairwise parallel ribs and two joined parallel ribs of smaller size, besides, faces of honeycomb straightener's polyhedrons, comprising two parallel ribs of smaller size, are arranged in parallel to a vertical surface, and faces comprising four pairwise parallel ribs are arranged at the angle to vertical and horizontal surfaces. Besides, the screening element of protective screens is treated with a composite material consisting of a polymer base, in which particles of - (Fe, Si) or - Co compounds are distributed with a nanocrystalline structure having volume density of (0.6÷1.4)·10-5 1/nm3. At the same time the polymer base for fixation of powder particles position with a nanocrystalline structure is made in the form of structure elements alternating between each other and arranged at the angle of 90° to each other, and each of elements is made in the form of lengthy particles arranged in parallel rows. Particles arranged at the left and right from it are shifted by the value that does not exceed half of the maximum size of the particle, at the same time the optimal is the following range of nanocrystal volume density values in an amorphous matrix: more than 0.6·10-5 1/nm3, but less than 1.4·10-5 1/nm3. |
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Composite material for protection against electromagnetic radiation Proposed composite material comprises polymer base wherein distributed are particles of (Fe, Si) or - Co compounds with nanocrystalline structure of bulk density making (0.6÷1.4)·10-5 1/nm3. In compliance with this invention, polymer base for fixation of position of polycrystalline structure powder particles is made up of alternating structure elements arranged at 90° to each other and representing elongated particles located in parallel lines. Note here that particles located on the right and left of said base are shifted by half the maximum size of particles. Note also that optimum range of bulk densities exceeds 0.6·10-5 1/nm3 but is less than 1.4·10-5 1/nm3. |
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Cooling system of onboard equipment of suspended aircraft optic-electronic container Cooling system of onboard equipment of suspended aircraft optic-electronic container includes evaporation circuit filled with cooling agent and provided with compressor, throttle control devices and heat exchanger, capacitor with supply device of straight-flow intake air and independent tight closed air circulation system inside the housing of suspended aircraft optic-electronic container. Air circulation system includes heat exchanger of evaporation circuit, cooled equipment and fans. Evaporation circuit in suction line of compressor includes at least one additional heat exchanger with throttle control device, which is located in a separate tight housing which is movable relative to container housing. Supply of cooling agent to heat exchanger is provided with the use of flexible elements and automatic controls of cooling agent distribution along circuits. As cooling agent in evaporation circuit there used is cooling agent with critical temperature of more than 130°C, for example, R142b or F142b. |
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Invention can be used in high-accuracy drives of machines and process equipment, in superhigh-accuracy drives in optic and laser devices, as well as in mechanisms of ultraprecision movements and positioning (MUMP) in nanotechnologies, e.g. for frame-by-frame movements of probe microscopes in nanoelectronics. According to invention, in movement mechanism containing housing, lead screw with restriction of rotation and possibility of movement along axis, leadscrew nut supporting with end surfaces on housing, actuator for setting of leadscrew nut movement, the axis of leadscrew nut is offset relative to axis of lead screw so that a gap is formed between threaded surfaces of lead screw and leadscrew nut. Actuator sets plane-parallel motion of the above nut perpendicular to lead screw axis at which threaded surface of leadscrew nut rolls the threaded surface of threaded screw. |
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Device for reliable radiation shielding of electronic equipment and method of making said device Invention employs separate closed cells for holding processing apparatus and viewing information, which are made from electromagnetic radiation-absorbing panels grouped into shelves as furniture with possibility of creating an ascending air stream which carries ozone ionised gases from the operator breathing area, wherein the operator is protected from harmful radiation of the electronic equipment by absorbing properties of the panels which form closed cells of the shelves. Powder of several metals is used when making the panels, wherein a film is deposited on particles of each metal, where the said film contains another metal, for example a heavy metal. The ready powder mixture, which is prepared as a composite mixture, is used as an additive to plastic materials for making panels of the shelves. |
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Metal mesh structure and method of making said structure Disclosed structure of a self-supporting metal mesh structure, which is an extremely thin perforated metal film, galvanically grown on top of a solid support ring which is part of the initial substrate and attached thereto by its ends. Disclosed also is a method of making the said mesh metal structure. |
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Method to initiate process of self-propagating high-temperature synthesis Method includes arrangement of a radio electronic information device inside a combustible charge located in a perforated jacket of a reactor, and reservoirs with fluorine oxidiser (FO) are arranged inside this charge in a reactor. In case of unauthorised opening of a reactor, simultaneously at least one reservoir with (FO) is unsealed, and (FO) is fed to the charge to initiate a process of high-temperature synthesis in combustion mode in a reactor. Total quantity of (FO) in all reservoir is equal to the following: m ≥ n · 0,01 M, where: m - total amount of (FO) in all reservoirs, g; n - number of reservoirs with (FO), pcs.; M - mass of a combustible charge, g. Reservoirs with (FO) are fixed to each other and to internal walls of the perforated reactor jacket. |
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Invention may be used to prevent leak of information processed by technical facilities as a result of stray electromagnet radiations and pickups (SERP) along lines of transfer of data of local computer networks (LCN), using twisted pair as the transfer medium. Transformer is arranged with volume short-circuited turn, its primary (1) and secondary (2) windings are wound on separate circular conductors located inside metal sleeves (5, 6) and separated by each other by metal partition (3) connected to busbar of signal grounding of technical facility of information processing. Transformer connection between the primary and secondary windings is done through volume short-circuited turn formed by metal partition (3), metal sleeves (5 and 6), turn (8) passing through geometric centres of primary and secondary windings, nut (9), and simultaneously being electrostatic screen. |
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Electric instrument with illumination Electric instrument comprises driving mechanism installed with the possibility of rotation in socle for opening and closing of electric contacts arranged in socle, and means of illumination arranged with the possibility to illuminate front zone of instrument. At the same time means of illumination comprise source of light, which radiates light flow in direction of light diode arranged with the possibility to direct light source along rotary axis of driving mechanism. |
Another patent 2513586.