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Hydrostatic support consists of stationary body (1) with bearing pockets (2) at opposed working surfaces and feed channel (3), moving guide (4) with opposed working surfaces connected with the body working surfaces, and floating element (5) with throttling channels (6) connected with control pockets (7) at its ends. Floating element (5) features cylindrical shape with circular ledge (8) at its top part and is arranged with minimum clearance in the body (1) cylindrical bore connecting the opposed pockets (2). Body (1) has recess (10) to surround circular ledge (8) without forming of throttling orifices. End surfaces of floating element (5) make said throttling orifices (9) with working surfaces of guide (4). |
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Method of manufacturing charges of mixed solid rocket fuel Method includes the preparation of a mixture of a binding agent with metal fuel and technological additives, preparation of a fuel mass, and portioned pouring of the mass into a case, with the preparation of the mixture of the binding agent with the metal fuel being carried out at a temperature by 5-25°C higher than the temperature of the fuel mass mixing, vacuuming of the formed mixture is carried out for 1-6 hours under a pressure of 5-50 mm Hg. Each portion of the fuel mass poured into the case constitutes 10-12% of the charge weight. |
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Electric impulse de-icing device Electric impulse de-icing device may be used for ice removal from metal sheet surfaces, for example, from wings covering of air planes. The claimed device comprises a number of inductors placed closed to de-iced metal surface. The inductors are coupled to outputs of the respective modules, which inputs are connected through a circuit breaker to the supply mains. Each of the modules comprises a charger, a storage capacitor, a monitoring key, a protective diode and control pulse generator. The charger input is coupled to the module output while its output is coupled to the storage capacitor. Output of the storage capacitor through the monitoring key is coupled to the module output. The protective diode is connected in parallel to the module. Besides, the claimed device is equipped with an adjustable control pulse delay unit and low-energy supply unit. The module input is coupled to the supply unit input while feeding inputs of the generator and adjustable control pulse delay unit are coupled to the module output. The generator and adjustable control pulse delay unit are coupled in series. Input of the monitoring key is coupled to output of adjustable control pulse delay unit. |
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Device for growth of monocrystals from melt by vertical pulling technique Device comprises chamber 1 to accommodate crucible 2 for melt, at least one main heater 4 for melting of initial material in crucible 2. There is an extra heater 9 arranged above the melt in the area of solid-melt interface and shaped to ring-like disc. Part-through radial cut-outs are made at inner and/or outer lateral sides of said disc. Besides, at least one heat-insulation shield 7 is arranged between lateral sides of the main heater 4 and chamber 1. Part-through radial cut-outs of inner and outer lateral sides of top heater 9 alternate so that radial cut-outs of one lateral side are located between radial cut-outs of the other lateral side. |
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Method of obtaining a material for a high temperature mass-sensitive piezoresonance sensor based on a monocrystal of lanthanum-gallium aluminium tantalate, the composition of which corresponds to formula La3Ta0.5Ga5.5-xAlxO14, where x=0.1-0.3, characterised by the electric resistance not less than 109 Ohm at a temperature of 20-600°C, includes growing of monocrystals from a melt of oxides its component constituents in an atmosphere of an oxidiser-containing inert gas, and additional annealing in air at a temperature of 1050-1150°C for 41-43 hours. |
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Railway vehicle brake includes brake line connected via air manifold with spare reservoir and main brake cylinder with piston the rod of which is connected using double-armed lever with brake shoe control linkage, as well as with additional cylinder gimbal-mounted on bogie. The piston rod of additional cylinder at its one end is gimbal-mounted on double-armed lever of brake cylinder, and at its other end (in parking brake actuation mode only) is connected with piston via nipple and threaded bushing connected via splined and rotary bushing with stopper. Additional cylinder is connected to spare reservoir using pipeline via activation valve. The activation valve provides air supply to additional cylinder during parking braking only by means of turning a key located on car board. If parking braking is not switched on then rod nipple is not connected with threaded bushing. |
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Method of obtaining big-volume monocrystals of gallium antimonide with low dislocation density Invention relates to field of obtaining semi-conductor materials, which are applied as substrate material in isoperiod heterostructures based on triple and fourfold solid solutions in systems Al-Ga-As-Sb and In-Ga-As-Sb, which make it possible to create broad range of optoelectronic devices (sources and receivers of irradiation on spectral range 1.3-2.5 mcm). Method includes synthesis from initial components and growing of monocrystals by method of Czochralski in hydrogen atmosphere on seed, oriented in crystallographic direction [100]. To initial components added is isovalent admixture of indium in form of especially pure indium antimonide (InSb) in the interval of elementary indium concentration (2-4)×1018 at/cm3, with synthesis and growing of monocrystals being realised in single technological cycle. |
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Device comprises the located along the devices axis a crank on the shaft and a wobbler on the support, where the wobbler is fixed on the fixed support. The device is also fitted with one axially moving element installed in fixed guide, and the moving element is kinematically connected to the wobbler with a possibility of reciprocative motion of the moving element with reference to the fixed guide. The method is characterised by that the crank is rotated, the rotational motion of the crank is conversed in an oscillatory motion of the wobbler along curvilinear trajectory, and curvilinear motion of the wobbler is conversed to a rectilinear reciprocation of one axially moving element in the fixed guide through kinematic connection between the wobbler and the axially moving element. |
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Invention relates to the sorption purification of sewage water from copper cations from running water solutions and can be used at plants of metal products and enterprises of nonferrous metallurgy, the mining, chemical, machine-building and electronic industry, as well as in public utilities. The method of purification of running sewage water from copper ions includes their sorption by a 95% glauconite concentrate with a 0.01-0.015 m thick absorbing layer. The purification is performed at a linear rate of a water flow to 0.38 m/h and pH=7.0±0.5. |
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Method of manufacturing charges of mixed solid rocket fuel Invention relates to methods of production of large-sized charges of mixed solid rocket fuel (MSRF) by method of free casting. The method of manufacturing a MSRF charge comprises placing the mounted with channel-forming fitments and the drainage pipe line of the housing in the altitude chamber, coupling of the drainage pipe line with the drain valve of the mixer, vacuumising of the altitude chamber and the housing and draining the fuel mass into the housing, at that for placing the housing in the altitude chamber the altitude chamber lid is removed, the drainage pipe line is mounted on it, on which from the inner side of the lid the housing is mounted assembled with the channel-forming needle, and mounted into the altitude chamber housing. |
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Proposed oar comprises one blade, shaft with swivel in oarlock and handle. Oar and shaft articulated to make a kinematic pair with flexible linkage. Said flexible linkage is composed of sprocket secured to blade and chain running over the latter and secured by cables to rowing boat on both sides from oarlock. |
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Device comprises a frame (1), an actuator (5), a sieve (8) and a reflector (9). The loading hopper (2) with a window (3) for outlet of grains is mounted on the frame. On the drive shaft (4) a booster plate (6) of conical shape with riffles is placed. The riffles are made radially curved with decreasing height. The sieve and the reflector are made in the form of truncated cones. |
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Vertical take-off and landing aircraft This aircraft comprises lifting device, fuselage, parachute-type rescue system, side supports, outer beams to support elevators and rudders and rear legs connecting the fuselage to lifting device. Lifting device consists of nacelle arranged atop said fuselage to house the propeller arranged ahead of or behind the grid wing (multiplane). Said grid wing features negative extension of profile elements that vary the angle of attack around transverse axis to turn about lengthwise axis to create the lift larger than or commensurable with propeller thrust. Power plane is articulated with said propeller and extra generator. Nacelle varies its position by turning about crosswise axis. Fuselage is composed of streamlined airframe to house aircraft payload and systems. Outer supports arranged at fuselage nose have two undercarriage front legs. |
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Vibration mixer comprises a mixing chamber with windows for charging and discharging materials, a rotor with a rotation drive made with blades. In the upper and lower parts of the mixing chamber in the centre there is a lower and upper vibrators fixed rigidly and made in bodies, with excitation of oscillations by means of upper and lower crankshaft mechanisms accordingly, and with the function of development of effect of vibration fields imposition in the centre of the mixing chamber from the lower and upper vibrators. Bodies of vibrators are made in the form of identical metal corrugated shells that represent corrugated thin-walled solids of revolution, forming complex truncated geometric figures in the cross section of the vertical plane at the points of the corrugation tops, and the figures are formed with central crossing of four circumferences with centres making tops of the square, and radii equal to the diagonal of this square, and made as capable of creating two vibration fields of identical amplitude and different frequency, each corresponding in shape to the corrugated contour of these solids of revolution, with differently directed oscillations, inside each of which in the centre in the horizontal plane there are discs rigidly fixed with guide stands, the function of which is to develop stable reciprocal movements of stems from a reciprocal pair formed by the guide stand of the lower part of the mixing chamber and the stem of the lower vibrator, the lower crankshaft mechanism and from the reciprocal pair formed by the guide stand of the upper part of the mixing chamber, by the guide stand of the drive of blades rotation and the stem of the upper vibrator, the upper crankshaft mechanism accordingly. Discs of the lower and upper vibrators are made with cylindrical protrusions, the function of which is the possibility to insert and fix springs at the internal diameter, which are installed with the function of free compression/release in sleeves, to the centres of the internal parts of which there are stems rigidly fixed, to the centre of the external parts - pushers, which are rigidly fixed by the other end to internal parts that form smallest corrugations, metal corrugated shells, and made with the function of excitation of oscillations from the least corrugations of vibrator bodies. Four protrusions are symmetrically fixed at external cylindrical parts of each sleeve. |
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Method and module for vehicle speed control Invention relates to method for vehicle speed control. When vehicle speed control is executed desired vehicle speed vset is accepted; targeted path horizon is determined using map data and position data. The first vehicle speed prediction vpred_cc over horizon is executed using conventional cruise control system when vset is given as reference speed. Predicted vehicle speed vpred_cc is compared with vmin and vmax which limit range within which vehicle speed is targeted. The second vehicle speed prediction vpred_Tnew over horizon is executed when vehicle engine torque T depends on the result of the mentioned comparison with in the last previous simulation pass (s-1). Based on at least one of the mentioned comparisons in this simulation pass (s) and predicted vehicle speed vpred_Tnew a reference value is determined which indicates how to act on vehicle speed. Reference value is sent to vehicle control system relative to which value the vehicle is subsequently adjusted. |
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Device for withdrawal of double-sided deflecting wedge from well Invention is related to the area of drilling and workover of oil and gas wells and may be used during construction of downhole splitters. The device comprises the main bore with catching hook and top joint for pipe string. The joint features diameter larger than that of additional drilled bores and is fitted with extra bore similar to the main one with catching hook directed towards the catching hook of the main bore. The main and additional bores are hollow and elastic and equipped with radial flushing channels arranged above catching hooks and aligned therewith. Above the joints there is a piston covered from outside by downwards spring-actuated cylinder fixed in the upper position, which is capable to move downwards and fix the bores from outside. In the lower part of the piston there are process plates with holes, and a thrust is placed between the latter in the lower position so that it is capable of limited movement upwards without slipping at interaction with the upper end of the deflecting edge. The cylinder features a circular groove with bevels interacting with balls in holes of the process plates pressed from inside by the thrust; in the thrust below holes there is mortising overlapping the holes in plates when the thrust is moved upwards to move the balls inwards and the cylinder gets unfixed. |
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Method and arrangement of hydram for bottomhole formation area and well development Group of inventions is related to oil industry, and namely to pulse hydraulic hammer treatment of the bottomhole formation area, and well development. Essence of inventions: method includes stratum shutoff by a ring packer, pressure treatment of the bottomhole formation area by cyclic pulses of repression and depression pressure to the bottomhole formation area with pumping out of formation fluid. In order to create repression and depression pressure pulses the below-packer space is separated from the over-packer space. The time is provided for alignment of below-packer pressure with over-packer pressure. Pressure in the over-packer area without injection of working fluid from the surface is made higher for the purpose of direct hydroram or lower than the formation pressure for the purpose of return hydroram. The below-packer space is united with tubing string or below-packer space is united with over-packer space for the purpose of direct or return hydroram. Potential separation or interconnection of the below-packer space with over-packer space or with tubing string is ensured by use of a downhole assembly with a shell, a saddle installed on it and a ring packer, a piston with cross tee, which is moved in the shell by means of the tubing string and potential piston inlet/outlet from the well, a controlled piston valve at the lower butt end of the tubing string interacting with the shell saddle for the purpose of its opening and closing when the tubing string is moved with the piston. |
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Vibration mixer comprises a mixing chamber with windows for charging and discharging materials, a rotor with a rotation drive made with blades. In the upper and lower parts of the mixing chamber in the centre there is an upper and a lower vibrators, made in bodies. Bodies of vibrators are made in the form of identical metal corrugated shells that represent corrugated thin-walled solids of revolution, forming complex truncated geometric figures in the cross section of the vertical plane at the points of the corrugation tops, and the figures are formed with central crossing of four circumferences with centres making tops of the square, and radii equal to the diagonal of this square, and made as capable of creating two vibration fields of identical amplitude and different frequency, each corresponding in shape to the corrugated contour of these solids of revolution, with differently directed oscillations, inside each of which in the centre in the horizontal plane there are discs rigidly fixed with guide stands, the function of which is to develop stable reciprocal movements of stems from a reciprocal pair formed by the guide stand of the lower part of the mixing chamber and the stem of the lower vibrator, the lower crankshaft mechanism and from the reciprocal pair formed by the guide stand of the upper part of the mixing chamber, by the guide stand of the drive of blades rotation and the stem of the upper vibrator, the upper crankshaft mechanism. Discs of the lower and upper vibrators are made with cylindrical protrusions, the function of which is the possibility to insert and fix springs at the internal diameter, which are installed with the function of free compression/release in sleeves, to the centres of the internal parts of which there are stems rigidly fixed, to the centre of the external parts - pushers, which are rigidly fixed by the other end to internal parts that form smallest corrugations, metal corrugated shells, and made with the function of excitation of oscillations from the least corrugations of vibrator bodies. Four protrusions are symmetrically fixed at external cylindrical parts of each sleeve. Between the bodies of the lower and upper vibrators in the centre there is a spring vibration exciter made in the form of a spring group made of at least two springs with different diameter, which are fixed along diameters of indents formed on the outer surface of the metal corrugated shells with a group of smallest corrugations of the lower and upper vibrators. |
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Water influx interval shutoff device in open hole of horizontally-branched well Water influx interval shutoff device in an open hole of horizontally-branched well comprises a tubing string with packers run in hole. From below the tubing string by a hydraulic disconnecting switch is connected to a double-packer assembly consisting of two swellable packers interconnected by an inter-packer tube, which length exceed length of water influx in the well, at the lower end of the double-packer assembly there is a perforated tube which is in its initial position is covered hermetically by a bushing from inside and fixed by a shear pin, at that at the lower tube end there is a hydraulic whipstock that ensures ingress into an open hole of the horizontally-branched well, at that in the operating position the bushing moves downwards in a limited way under action of the gating element run in at the tubing string from the wellhead until it thrusts into the butt end of the hydraulic whipstock with opening of perforated holes of the tune and fixation in the tube below its perforated holes. |
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Electrochromic device with lithium polymer electrolyte and method of manufacturing thereof Invention relates to applied electrochemistry, namely to an electrochromic device with a lithium polymer electrolyte and a method of manufacturing the electrochromic device. Claimed is the electrochromic device with the lithium polymer electrolyte, which includes an operating electrode in the form of a tungsten oxide film, a counterelectrode in the form of the Prussian Blue film and a polymer electrolyte with the following composition, wt %: lithium perchlorate 8-16, ethylenecarbonate 20-30, polymethylmethacrylate polymer 10-20, propylenecarbonate - the remaining part. The method of the electrochromic device manufacturing includes the preparation of the polymer electrolyte, preparation of working and auxiliary electrodes, in particular the cathode restoration of an auxiliary electrode before the assembly in the liquid lithium electrolyte, assembly and sealing. In the process of assembly a portion of the thickened polymer electrolyte is placed between the electrodes with their compression until complete contact of the counterelectrode with a separator of the operating electrode takes place, after which the excess of the electrolyte is removed. The device sealing is carried out by means of thermal glue. |
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Mixture friable anti-icing reagent Invention relates to mixture friable anti-icing reagents for road processing. An anti-icing reagent (material) represents a mixture of natural, sieved or milled sandstone, fungicidal additives, salt components in an amount from 2 to 5% of the sandstone weight and water from 3 to 15%. Particles of sandstone superficially freeze to the compacted snow and ice, forming a stable abrasive coating, remaining on the surface after cleaning the fallen snow. |
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Construction machine for making wells in soil Invention relates to a construction machine, such as a construction machine to produce wells in soils. A construction machine comprises a support base, a mast and a rope hoist with a drum for rope winding. The rope hoist comprises a winding device, which includes an inlet pulley to direct the rope, a guide carriage installed as capable of displacement along the axis of drum rotation, where the inlet pulley rests, a rope brake for tightening of the rope in the area of approaching the drum. The rope brake is installed on the guide carriage and comprises a braking device and a channelled pulley made as capable of its braking by a braking device. The inlet pulley and the channelled pulley are located at two opposite sides of the rope. The braking device is made in the form of a controlled pressing pulley made as capable of its pressing to the rope with alternate pressure. There is a metering device made as capable of defining the value of the current load at the rope. There is a unit of control for automatic control of the rope brake. Besides, the rope brake activates, if the measured value of the current load at the rope is less than the minimum permissible limit. |
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Heat-resistant adhesives for connection of crystals and metals with polyimide base Adhesives (compositions) contain as a polymer binding agent a novel prepolymer - poly(o-hydroxyamide) - product of the reaction of polycondensation of 3,3'-dihydroxy-4,4'-diaminodiphenylmethane and 1,3-bis-(aminopropyl)-tetramethyldisiloxane with isophthaloylchloride. In the process of the adhesive preparation for application, the exposure of a reaction solution, containing catalytic quantities of HCl, is carried out for 30-40 min. The connection of a crystal or metal to a polyimide base is realised at 200-270°C for 30-40 min. |
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Making of protective coatings on valve metals and their alloys Invention relates to protective antifriction coatings that feature high wear and corrosion resistance on valve metals and their alloys, primarily on titanium and its alloys, aluminium and its alloys and magnesium alloys. It can be used for antirust protection of metal parts and structures operated in water corrosive media, at high moisture content and under effects of aggressive ions. Proposed method comprises electrochemical treatment of metal surface. This is performed at voltages that allow plasma micro discharges at electrolyte-electrolyte interface at current effective density in electrolyte of 0.5-1.0. Electrolyte comprises soluble phosphate, tartrate or silicate and is a colloidal solution with pH 8.0-10.5.PRFE ply is applied from suspension containing PTFE particles of 0.2-0.6 mm in isopropyl spirit with addition of wetting agent OP-10. Components ate taken at the following ratio: PTFE - 100.0-150.0, wetting agent OP-10 - 6.0-8.0, isopropyl alcohol making the rest. Now coating is subjected to heat treatment. |
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Method and device for purification of polluted alkaline solution of amino acid salt Invention relates to a method of purification of a polluted alkaline solution of amino acid salt. First, carbon dioxide is introduced into the amino acid salt solution, which results in the precipitation of carbonate or its salt, which are filtered. After that, the remaining filtrate is cooled, with amino acid or its salts being crystallised and then filtered. After that, amino acid or its salt are re-dissolved, which results in the regeneration of the purified amino acid salt solution. The invention also relates to a device for the said method realisation. |
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Method of electrochemical sewage water processing and device of realisation thereof Invention relates to the field of sewage water processing. The method of electrochemical removal of pollutants from sewage waters in accordance with the invention is realised in an installation of electric coagulation for the removal of the pollutants, including, at least, one anode and, at least, one cathode, and in the installation for electric oxidation for the oxidation of the pollutants, including, at least, one anode and, at least, one cathode, where oxidants are obtained in an electrochemical way. Depending on the type of sewage waters, a device between the installation of electric coagulation and the installation of electric oxidation can include an installation of electric floatation. The device also includes an installation for oxidant removal, which can include an electrode, releasing ions of metals, for carrying out a reaction with the residual oxidants and their removal. In some cases, in order to increase efficiency, a part of discharge from the installation of oxidant removal can be supplied for recirculation into the installation of electric coagulation. |
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Tunnel tubing ring for underground structures of subway Tunnel tubing ring comprises cast iron lining of a tunnel assembled from a row of joined metal tubings each made in the form of cylindrical segments connected to each other via holes by bolted joints. On the inner surface of the back of each segment there are internal round stiffening ribs that form internal caissons. The ring is equipped with a tray block made of a reinforced concrete part and a metal tray board made in the form of a box-shaped cast iron ingot of rectangular profile and a cast iron tubing. The cast iron tray board has a flat back of rectangular shape that changes into radial boards to form two internal caissons. In the boards of the specified caissons there are holes, via which the specified board is connected with the help of bolted joints with hydraulic insulation and pressing washers both with the cast iron tubings of its own ring and the tray board. On parallel and radial boards there are chased grooves for further sealing of board joints. |
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Visible light absorbers for ophthalmic lens materials Invention relates to visible light absorbers, particularly novel azo compound monomers, particularly suitable for use in materials for implantable ophthalmic lens materials. The ophthalmic device material includes an azo compound, a device forming acrylic monomer and a cross-linking agent. The ophthalmic device is made from the ophthalmic device material and is in the form of intraocular lenses, contact lenses, keratoprostheses and corneal inlays or rings. |
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Motion control system for high-speed transport machine High-speed tracklaying vehicle (HSTLV) is equipped with hydromechanical driveline and differential steering device with hydrostatic drive. Automated motion control system consists of control actions (steering angle, fuel-feed pedals displacement) meters, as well as angle shaft angular velocity and travelling speed meters which are electrically connected via analogue-to-digital converter with on-board microcomputer generating specified steering angular velocity, gyro transmitter, two-channel spectrum analyser, electrohydraulic booster which moves hydrostatic drive control element via differential lever. Additionally, following elements are introduced in the system: identifier of control input type, two Shaper filters electrically connected with hydraulic drive by means of pressure sensors via spectrum analyser, oscillations suppression and operation speed regulators the signal from which is entering hydraulic drive via additive register and control signal shaper. |
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Mixture of basic lead sulphates Invention can be used in the chemical industry. A finely-disperse microporous powder has high an internal porosity and density <3.5 g/cm3 and consists of lead salts - tetrabasic lead sulphate and tribasic lead sulphate. |
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Invention relates to production of construction materials. Line for production of composite reinforcement with bearing core and helical winding from roving threads impregnated with thermosetting binder comprises bobbin carrier with reels with roving threads, said winding being composed of bundles and/or tapes of winding roving. It comprises also, the roving pre-drying assembly and impregnation bath with stretching and squeezing devices. Forming assembly includes helical winding device and heating assembly. Besides it comprises pull and-cut assemblies, and at least one device to twist the core from roving threads arranged ahead of forming assembly. Said twisting device comprises bed, drive, roving threads bobbin, bobbin drive, twisted core guide flute and clamp to stretch twisted core and to direct it at roving thread bundle in the bearing core of composite reinforcement. |
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System and method for identification of traffic violation at crossroad Invention relates to traffic regulation, namely to identification of traffic violation at crossroad identification of traffic violation at crossroad. Following equipment is used: traffic light and viewing cameras, data transmission facility and electronic computing device. Viewing camera is made with possibility to from stop-line zone, as well as image of zone after imaginary line of crossroad. Traffic light camera is made with possibility to from image of traffic light signals, as well as stop-line zone and zone after imaginary line of crossroad. Electronic computing device is made with possibility to obtain and memorise images from traffic light and viewing cameras with possibility to recognise vehicle license plate number. Additionally, computer is made capable to determine violation and generate information for vehicle about traffic violation "about stopping down before stop-line when restrictive signal of traffic light is present" and "riding when restrictive signal of traffic light is present". Data transmission facility transmits information about violation fact to remote information processing centre. |
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Stabilised liquid adhesive concentrate Invention relates to preparation of liquid adhesive concentrates with improved storage stability and easy application. The liquid adhesive concentrate contains water, at least one nonionic polysaccharide, at least one copolymer and sodium sulphate. The invention also relates to a method of producing said adhesive concentrate and use thereof to produce an adhesive. The liquid adhesive concentrate is obtained by dissolving sodium sulphate in water, adding to the obtained solution at least one nonionic polysaccharide and an aqueous dispersion of at least one copolymer. The adhesive is obtained by diluting the liquid adhesive concentrate. |
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Invention relates to transfer-bridge facilities, i.e. to pontoon bridges. A pontoon belt bridge with three traffic lines includes collapsible river and coastal links joined to each other in longitudinal and transverse direction by means of joint units, and the links comprise hingedly connected pontoons equipped with traffic areas built into decks. Height of pontoons of the middle traffic line is 1.4…2 times higher than the height of pontoons of the extreme traffic lines. Width of the traffic part of the middle traffic line is equal to 15.3…16 m, and width of the traffic part of each extreme traffic line is equal to 6.5…7 m. |
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Cavitation corrosion protective method for tubing string Invention is related to oil producing industry at oil production from large depths exceeding 500 m when oil contains gases. The concept of the invention is as follows: the cavitation corrosion protective method for tubing string includes water injection to the oil formation through a pressure pipe and extraction of borehole fluid with gases dissolved in it through the tubing string. When dissolved gases are contained in quantity at least 100 m3 per 1 m3 of borehole fluid pressure at the borehole output is either increased smoothly up from 0.1 up to 2 MPa with a pitch of 0.01-0.003 MPa per week or maintained at the values 1.1-1.2 times more than the threshold value of boiling pressure of the main component in liquid gas dissolved in oil. |
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Wear-resistant anti-friction varnish for engine piston coating Invention relates to a coating for pistons, in particular a coating for the guiding part of the piston of an internal combustion engine. A composition for the piston coating contains: a) thermally hardened phenol resin, b) at least, one solid lubricating material, selected from the group, consisting of graphite, MoS2, WS2, BN and PTFE and c) carbon fibre. The composition is applied to minimise friction loss in the internal combustion engine. |
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Method to connect belt rod elements of truss structure Method to connect belt rod elements of a truss structure, according to which belt rod elements are connected to appropriate connection rod elements and/or with appropriate belt rod elements of the truss section. Ends of all rod elements are made with self-stopping thread. In each pair of connected elements thread at their ends is made as differently directed, and their ends are placed in contact to each other due to turning of tightening connection couplings onto ends of elements. |
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Method of sewage water purification from metal ions In a method of sewage water purification from metal ions, which includes processing with a reagent, mixing and separation of sediment, as the reagent applied is tetracalcium allumoferrite in a quantity of 100 mg/l. |
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Invention relates to optic materials, in particular to melt alumoborate glass, activated by trivalent ions of cerium (Ce3+) and terbium (Tb3+), which can be used as a visualiser of ultraviolet images and light transformer from ultraviolet into the yellow-green area of the spectrum. Glass (versions) has the following composition, mol.%:B2O3 55-70, Al2O3 15-35, La2O3 1-10, Ce2O3 1-5, Tb2O3 2-10 and over 100% Sb2O3 0.5-5 or B2O3 55-70, Al2O3 15-35, Y2O3 1-9, La2O3 1-9, Ce2O3 1-5, Tb2O3 2-1 and over 100% Sb2O3 0.5-5 or B2O3 55-70, Al2O3 15-35, Y2O3 1-9, La2O3 1-9, Ce2O3 1-5, Gd2O3 1-9, Tb2O3 2-10 and over 100% Sb2O3 0.5-5, or B2O3 55-70, Al2O3 15-35, Y2O3 1-10, Ce2O3 1-5, Tb2O3 2-10 and over 100% Sb2O3 0.5-5, or B2O3 55-70, Al2O3 15-35, Gd2O3 1-10, Ce2O3 1-5, Tb2O3 2-10 and over 100% Sb2O3 0.5-5, with the atomic ratio Tb/Ce≥1. |
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Device for soil sampling comprises a cylindrical tube with a sharpened cutting edge, a three-rod fork, and handles. The device is provided with an intake cylindrical cup 1 with the sharpened cutting edge 2 in its lower part and adapted to extract a sample, comprising a pusher 8 located inside of the intake cup 1, rigidly connected by the fork of three rods 9, freely passing through openings 12 of the cup lid, to the flange 10 with a hub 11 over the cup at an angle 120° relative to each other, having the ability to move along the rod 5 of the device. And mounting on the soil surface and extracting from it is carried out by the handles 7 of the impact tip 6 fastened to the upper part of the rod 5 of the device. Filling the intake cup 1 with the sample and its removal is carried out by impacts on the tip 6 of the rod 5 and the flange 10 of the device to extract the sample, fixed on the lower edge of its hub 11 relative to notches of the dimensional scale 13 applied to the rod 5 of the device. |
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Chain with overlapping links for dry angle extrusion pump Chain for pump (10) used for extrusion of disperse material comprises multiple links (30A, 30B), each provided link body (50, 54) and link support (50A) extending therefrom. Every support of the link covers the adjacent link body of said multiple links to make the set of links form a flat surface along chain fouling zone. Every body of the link comprises several plates extending therefrom. Every said plate has first and second holes connected with first holes of one adjacent link and with second holes of the other adjacent link by appropriate pin. |
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Gas drying method and gas drying unit for its implementation Gas drying method lies in alternated passage of the dried gas through absorbers, one of them is used in drying mode while the second one - in regeneration mode, with sampling and heating of a part of the dried gas for absorbent regeneration, at that gas after absorbers regeneration is directed to the primary gas cooler in order to cool it down and to eliminate primary condensate; thereafter it is directed to the freezing chamber for further decrease of temperature and receipt of secondary condensate; then dried and cooled gas is supplied to the compressor input where its pressure is increased up to the value not less than input pressure of the dried gas, then gas is sent to the receiver and to input of the drying unit. The gas drying unit contains an input pipeline, two absorbers with inlet and outlet pipelines connected in series with a heat exchanger for the purpose of gas primary cooling, a freezing chamber, a condensate sampler, a compressor and receiver, valves with control system ensuring switching of absorbers from drying mode to regeneration mode, and choke with pipeline feeding the dried gas to the regenerated absorber. |
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Acid-generating solid-fuel composition for treatment of oil wells Acid-generating solid-fuel composition includes the following components, wt %: ammonium nitrate 35-40, thrifluorochloroethylene copolymer with vinyledine fluoride 5, elastomeric copolymer of vinyledine fluoride and chlorotrifluoroethylene with particle size of 0.5-1.5 mm 10-12, polyvinylchloride with mol. mass of 25-50 thous. 43-50. |
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Cartridge for smooth-bore systems Cartridge includes a cylindrical case, a propellant charge, an igniter capsule, a propellant element and a piston. The piston by its cylindrical surface contacts the inner surface of the case. The piston has through holes at an angle of inclination to its horizontal plane for the passage of gases from the propellant charge. The propellant charge is arranged throughout the free volume of the case. The piston is made in the bottom part on the propellant element itself. The diameter of the propellant element in the middle part is smaller than the inner diameter of the case. The propellant element diverges conically in the front part to the piston diameter and is changed over to a cylinder and then to an ogival section. |
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Method of growing profiled crystalls of high-melting compounds Invention relates to the field of growing profiled crystals of high-melting compounds from a melt by the Stepanov method, for instance, synthetic sapphire, ruby, yttrium-aluminum garnet, which can be applied in instrument-making, machine-building, thermometry, chemical industry. The method includes the formation of a melt column 5 between an inoculum 7 and an upper edge of a shape-former, equipped with a vertical ring feeding capillary 3 of the constant section and, at least, one vertical channel 4 of a small diameter, made in the upper part of the shape-former. In the process of a crystal 6 growing the distance from the upper edge of the shape-former to the level of the melt Neff is supported not higher than 0.8 h, and the feeding capillary 3 is made with the length L, determined from the ratio 2.5 h>L>h, where h is the height of the melt raise in the capillary. |
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Gas drying method and gas drying unit for its implementation Gas drying method lies in alternated passage of the dried gas through absorbers, one of them is used in drying mode while the second one - in regeneration mode, at that main absorbers are used for drying of the main flow rate of gas and auxiliary absorbers are used for drying of regeneration gas. Gas after regeneration of the main absorbers is directed to the primary gas cooler in order to cool it down and to eliminate primary condensate, thereafter it is delivered to the compressor input, where its pressure is increased, then gas is directed to the receiver where gas pressure is decreased and then gas is delivered to one of the auxiliary absorbers for final drying, thereafter gas is sent to the input of drying unit. At that, with absorbent moisturising in one of the auxiliary absorbers, in parallel to the process of the main absorber regeneration, regeneration of the auxiliary absorber takes place; to this end part of the dried regeneration gas is directed to the second auxiliary absorber operated in regeneration mode and then to the atmosphere. The gas drying unit contains an input pipeline, two absorbers with pipelines, valves with control system, a choke, a compressor, a receiver and a regeneration unit containing auxiliary absorbers, at that outlet pipelines of the main absorbers are connected to the heat exchanger for the purpose of gas primary cooling, the compressor and receiver. |
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Controlling unit and method for hybrid vehicle control Invention relates to hybrid vehicle control. Controlling unit for hybrid vehicle control which includes the first and the second transmission mechanism; the first and the second engagement and disengagement mechanism and air conditioner compressor. The controlling unit controls transmission so that when vehicle moves at extremely low speeds being driven by electric motor, in case when battery charge becomes low or when air conditioner compressor rotation speed is lower than specified rotation speed the power from internal combustion engine could be transmitted to output shaft by means of engagement of the first engagement and disengagement mechanism. |
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Method of increasing filler content in paper production Invention relates to production of paper. The method comprises processing the filler particles with coagulant - a copolymer of acrylamide/ammonium diallyldimethylchloride (AcAm/DADMAC), mixing the filler particles and cellulose fibres, processing the resulting mixture with the hardening additive - glyoxylated copolymer of acrylamide/ammonium diallyldimethylchloride (AcAm/DADMAC) and formation of matte paper. At least 10% of the filler particles are precipitated calcium carbonate and at least 10% of the said filler particles are ground calcium carbonate. |
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Safety airbag assembly for vehicle restraint system Invention relates to transport engineering. Safety airbag assembly for vehicle restraint system includes: safety airbag, gas generator, gas generator holder, casing part. The casing part covers safety airbag from the side of vehicle interior. The casing part contains latching element. The gas generator holder contains hole for latching element. The casing part connects with gas generator holder when latching element is inserted into hole and locates behind locking element. The locking element is made so that it in segments presses on latching element in direction being inclined or perpendicular to insertion direction. The locking element contains the first and the second segments. The first segment connects with gas generator holder and via bent element - with the second segment. The locking element is made so that it is U-shaped or V-shaped in its cross section. The locking element resides on inner side of latching element. Bent element of locking element resides on the side of gas generator holder and turns towards casing part. |
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Method of obtaining powders of oxide lithium-tungsten bronzes Invention can be applied in the chemical industry. Powders of oxide lithium-tungsten bronzes are obtained in heating of an initial composition, which includes tungsten (VI) oxide and lithium tungstate, to temperatures of 570-600°C, 30-minute exposure with further increase of the temperature to 650-700°C and 1-hour exposure. The composition additionally contains lithium tetraborate and metal tungsten powder with the following component ratio, wt %: Li2WO4 - 30-66; Li2B4O7 - 7-24; WO3 -20-34; W - the remaining part. |
Another patent 2550864.