Drilling electric generator

FIELD: electricity.

SUBSTANCE: drilling electric generator contains a stator, point of attachment, a rotor with one or several groups of permanent magnets, kinematically connected with the drive for the moving of the magnets, and the excitation windings corresponding to them. The drive for the moving of magnets is capable of reciprocative transportation and contains a power element from material with memory of the form. The power element can be executed in the form of bellows, from a material with memory of the form, established in an airtight cavity inside the stator to which are supplied wires from the excitation winding through the switchboard, to which is in turn connected the power supply and the accumulator of electric power. On the front part of the stator there is a ribbing. In a back part of the electric generator there is an electric socket connected by electricity cables with windings of excitation. Inside the point of attachment there are openings. The point of attachment is on the front part of the stator, or in the middle part of the stator, or at the back part of the stator.

EFFECT: increase in the power and resource with the reduction of its diametrical dimensions.

7 cl, 1 dwg

 

The invention relates to electric machines. Specifically the invention is intended for electric power downhole apparatus and transmitting device downhole telemetry system. The generator converts the energy of the drilling fluid in the electricity necessary to power the downhole navigation and geophysical instruments in the process of drilling and transmitter of electromagnetic communication channel. For the telemetry system at great depths requires an increase in the power transmitting device to 1 kW and more. To get more power, small size of the generator is very problematic.

Known AC generator to power the telemetry system in the process of drilling a small diameter, comprising a stationary inner stator with header and fixed on the drive shaft of the external rotor, equipped with electromagnets (RF patent No. 2060383, MCP EV 47/022, 47/00, priority from 21.02.92 g). The lubrication system is a cavity between the rotor and the stator is filled with lubricating fluid.

Known Autonomous turbine generator (an electric generator), is also designed to supply electrical power to the telemetry system that includes a turbine driven by the flow of drilling fluid, oil flooded the stator, filled Epoque is idnum compound, and the rotor of the alternator with permanent magnets located on the same shaft with the turbine (Molchanov A.A., Shiraev AH "Downhole Autonomous system with magnetic registration". M., Nedra, 1979, pp. 102-103).

This generator consists of a stator, placed inside the unit, and a six-pole magnetic ring rotor made from the outside. The rotor is also the case for the blades of a three-stage turbine. Before each stage of rotor blades of the turbine, in turn, has three stage guide vanes collected in an external enclosure that increases the diameter of the device. To prevent the ingress of drilling fluid into the generator and bearing assemblies installed sealing device, the internal cavity of the generator is filled with transformer oil.

Due to the fact that the generator operates in the temperature range from -40 to +130°s, when drilling to depths of 3500 m and more, and the volume of oil changes with changing temperature, put the pressure compensator and thermal expansion of lubricating fluid (oil). The compensator pressure and thermal expansion lubricating fluid made in the input fairing generator. It consists of two thin core plates, one of which is convex and the other concave. To compensate for the ATOR pressure and thermal expansion of lubricant is designed to compensate for changes in the volume of oil in oil-filled cavity of the generator in operating conditions when the temperature rises, as well as the equalization of pressure inside and outside of the generator.

The disadvantages of this generator are:

- low reliability

- small resource

- large dimensions and weight of the device

- the complexity of the design.

These shortcomings are due, primarily, to the fact that the drive uses a multistage turbine with guide devices. The use of turbines with the alignment apparatus as actuator imposes high requirements to the quality of cleaning mud from fractions of drilling cuttings and other foreign objects, ingress of which the gap between the workers and the guide blades of the turbine may cause the system to stop (jamming). The presence of the guide vanes of the turbine increases the diametrical dimension of the generator, which is not desirable when drilling relatively small diameter.

The second design flaw is the complexity and unreliability of the pressure compensator and thermal expansion of lubricant. Due to the elasticity of the walls of the compensator pressure of lubricant is always less than the ambient pressure. This can lead to the ingress of drilling fluid into the lubrication system of the generator and to the wear of bearings, seals and other parts.

Also known generator according to U.S. Pat. RF is the 2173925, the main feature of which can be considered the lubrication system. The lubrication system of this generator contains the device on its front end face, the cavity between the outer rotor and stator, filled with lubricating fluid, and the pressure compensator and thermal expansion of lubricant placed on the device side for generator mounting, made in the form of a piston mounted for axial movement and seals installed inside the piston for axial movement together with him.

A disadvantage of this device is the difficulty of filling system lubricating fluid and low resource seals.

Known downhole generator power telemetry systems Saint of the Russian Federation for useful model No. 34638.

This generator contains the unit in its front part, the cavity between the outer rotor and stator, filled with lubricating fluid, and the pressure compensator and thermal expansion of lubricant placed on the device side for generator mounting, made in the form of a piston installed inside the rotor for axial movement, and seals installed, in turn, inside the piston for axial movement together with it, the piston is configured to drain the MS lubricating fluid in the fully charged position in the gap between the rotor and bracket generator.

The disadvantage of this system of lubrication is that due to the overlapping functions of the expansion joint and seal reduces their resource.

Known generator according to St. the Russian Federation No. 13123, which contains a rotor with turbine, stator, the mount and the capacity to supply lubricating fluid made in the form of glass made in the front of the generator installed inside a spring-loaded piston, and the device. The generator and turbine is far removed from each other in the axial direction and separated magnetic coupling, which increases the size of the generator and reduces the reliability of the grease.

Known generator for RF patent for the invention № 2264537, prototype, comprising a housing with a winding, a mount, a rotor with a shaft, magnets and turbine mounted through bearings in the housing, and the capacity to supply lubricating fluid in the form of glass made in the front of the generator installed inside a spring-loaded piston and the filling device, characterized in that at least one front bearing is installed in the sleeve, which is centered in the protruding part of the body, closed on the other side of the axis, are fixed against rotation and having an annular groove for winding and cylindrical the ledge in the inner bore of which has, at IU is e, one rear bearing and the inside of the shaft is a through axial hole. Between the front bearing and rotor installed shim. Winding installed in the housing and fixed with pins from offset. Spring is partially housed inside the piston. The device is designed as a valve mounted in the channel of the rod, closed by a cork.

Disadvantages: low power and resource generator with limited diametral dimensions.

Creating a powerful generator is limited by its diametrical dimensions, and low resource due to the fact that for the lubrication of numerous supports (bearings) inner cavity of the generator is filled with lubricating fluid, but due to the fact that during operation the inside of the generator enters the drilling fluid containing abrasive particles, bearings, seals and other parts wear out quickly.

Tasks of invention - improving the capacity and resource generator with reduced diametrical dimensions.

The solution of the stated problem is achieved due to the fact that the downhole generator containing a stator, a mount, a rotor with one or more groups of permanent magnets, kinematically associated with the travel drive magnets and the corresponding winding vazbu the Denia the actuator moving magnets made with the possibility of reciprocation and contains the power element from a material with shape memory. The power element may be in the form of a bellows from a material with shape memory that is installed in a sealed cavity within the stator that connects the wires from the winding through the switch, which, in turn, is connected to the power source and the power storage. On the front side of the stator is made ribbing. In the back of the generator (on his end) completed electrical connector connected lines with excitation windings. Inside of the mount holes. The attachment can be performed either in the front (mud flow), or in the middle part, or the back (lower, if the generator is installed vertically) part of the stator.

The invention is illustrated in the drawing.

Downhole generator (see drawing), designed to power the downhole equipment is installed in the string of drill pipe or casing and contains the attachment 1 to the stator 2. In attachment 1 with holes for the passage of drilling fluid to the downhole motor and the rock cutting tool (not shown).

The downhole electrical generator includes a rotor 3 with a mustache who set out on it one or more groups of permanent magnets 4.

Inside the stator 2 has a cavity "B", in which you installed the drive movement of the magnets 5. This drive can be made of any design and must contain the power element 6 from a material with shape memory, one end of which is connected to the stator 2, and the other with the rotor 3. The travel drive magnets 5 provides the reciprocating movement of the rotor 3 and the group of magnets 4 inside the field windings 7, installed in the cavity of the stator B concentric groups of magnets 4. It is necessary to create in the excitation windings 7 of the electric current. The power element 6 can be made in the form of a bellows from a material with shape memory, as shown in figure 1. There are other possible forms of realization of the power element 6, for example in the form of a spring or a rod.

The cavity "B" is airtight and can be filled with lubricating fluid or other solution to improve thermal conductivity and pressure compensation and temperature extensions. This is to avoid crushing the thin walls of the stator 2. On the front side of the stator 2 made the fins 8 for heat dissipation.

The cavity "B" communicates with the cavity, which houses the winding 7 and the partition wall 9 is required for installation of the guide sleeve 10. The differential pressure between cavities "B" and "C" is missing.

From the windings became the foster departs 7(Yat) electric(s) conductor(s) 11, he passes through the holes "G" and "D"are made in the stator 2, and are connected to the electrical connector 12. If you have applied one wire, then the function of the other wire runs to the stator 2. The connection of the field windings 7 can be made parallel, serial, or parallel-series. On the electrical connector 12 may receive the voltage from the two groups of field windings 7 to supply electricity to various independent consumers. The electrical connector 12, it is advisable to perform coaxial.

Wires 13 connect the field winding 7 through the switch 14 with the power element 6 to the periodic heating. The switch 14 is connected to the power source 15, the power storage 16, for example a battery, and the processor 17 to control the switch 14 for a given program. The temperature of the drilling fluid in the borehole is typically in the range from 80 to 130°C. the temperature of the martensitic transformation of the power element can be configured, for example, 150...200°C. be used in a temperature sensor 18 connected to the processor 17, or end (end switch) 19 under the rear (lower) end of the rotor 3 (connection electrical connection end 19 to the processor 17 is not shown.)

To actuate the downhole power generator from the source feed is 15 through the switch 14 to the power element 6 is pulse energy, enough to warm it up for several tens of degrees, i.e. to a temperature of martensitic transformation. When this power element 6 is lengthened and the rotor 3 moves backward (down) 10...20 mm, depending on the thickness of the group of magnets 4. Within the field windings 7 creates an alternating magnetic field, and the windings produces an electric current. Further an electric current to the heat of the power element 6 is supplied via a switch of the drive energy. Control of the switch 14 provides the processor 17, for example, the temperature detected by the temperature sensor 18.

The drilling fluid passing between the drill pipe and the fins 8 through the holes A, cools the liquid filling the cavity "B", the power element 6 is cooled to a temperature of the drilling fluid, for example 80...130°and is the reverse martensitic transformation of a material with shape memory, the power element 6 reduces their length, and the rotor 3 is moved forward (upward).

These movements are performed periodically, the group (s) of permanent magnets 4 make a reciprocating movement inside the field windings 7. In the windings of the excitation 7 produces the electric current through electric wires 11 is transmitted to the electrical connector 12, and the electric wires 13 through whom Uttar 14 is transmitted to the power storage 16.

The number of groups of permanent magnets 4 and the field windings 7 can be made arbitrarily large. This will allow you to design the power supply and the downhole equipment for drilling and casing a very small diameter.

The application of the invention allowed:

1. Significantly reduce the diametrical dimensions and weight of the downhole power generator due to the refusal of the turbine.

2. To increase the capacity and the voltage at the electrical terminals of the generator through the use of a large number of groups of permanent magnets and field windings.

3. To eliminate the imbalance of the rotor of the downhole power generator due to the refusal of the rotational motion.

4. Significantly increase the reliability of the generator due to the absolute air-tightness of the internal cavity and the lack of a seal rotating parts.

5. To simplify the design of the downhole generator, due to the refusal of the bearings and seals and simplify the design of all components and their unification.

6. To simplify Assembly and disassembly of the downhole power generator due to its implementation of a modular design and application of coaxial electrical connector.

7. To improve the maintainability of the downhole power generator due to the extremely simple design, the minimum number of parts and simple Conf the configuration of all the details.

1. Downhole generator containing the stator with its fastening, a rotor with one or more groups of permanent magnets associated with the travel drive magnets and the corresponding winding of the stator, characterized in that the drive movement of magnets configured to generate reciprocating movement and provides a power element in the form of a bellows from a material with shape memory that is installed in a sealed cavity within the stator, one end of which is connected to the stator, and the other with the rotor and connects the wires from the winding of the stator through the switch connected to the power supply and power storage.

2. The downhole power generator according to claim 1, characterized in that the front part of the stator is made ribbing.

3. The downhole power generator according to claim 1 or 2, characterized in that the rear part of the generator performed electrical connector connected lines with excitation windings.

4. The downhole power generator according to claim 1 or 2, characterized in that the inside of the mount stator holes.

5. The downhole power generator according to claim 1 or 2, characterized in that the attachment of the stator is made in its anterior part.

6. The downhole power generator according to claim 1 or 2, characterized in that the bonds of the l mounting stator is made in its middle part.

7. The downhole power generator according to claim 1 or 2, characterized in that the attachment of the stator is made in his back.



 

Same patents:

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering and may be used in power generators of borehole hardware. Borehole electric generator includes fastening unit, rotor with hydro turbine impeller and, at least, one group of permanent magnet which has cinematic link with hydro turbine and associated induction windings. Cinematic link with permanent magnet groups is arranged through conversion mechanism of rotary motion to reciprocal motion, which can be arranged as driven disk installed on rotor, driving disk installed on axis and spring abutting on axis end. Holes are provided inside fastening unit. Fastening unit is located in front, middle or rear part of stator.

EFFECT: increase of electric generator power and lifetime while reducing diameter sizes.

6 cl, 1 dwg

FIELD: electrical engineering.

SUBSTANCE: invention is related to sources of autonomous power supply and represents technological field device with improved generation of power. Technological device may be transmitter of technological parameters, technological drive or any other suitable field device. Field device contains wireless transceiver that receives and transmits information related to technological process in wireless medium. Power supply source in field device is made with the possibility of connection with compressed gas source and generates motion in power supply source, which is converted in electric energy. This electric energy is used for operation of filed device.

EFFECT: creation of reliable autonomous power supply source, which is able to supply adequate power for measurement and transmission for wireless remote technological units, which does not require sun light or periodical charging of accumulator.

38 cl, 7 dwg

Propeller // 2321939

FIELD: conversion of wind or water flow kinetic energy into electricity.

SUBSTANCE: proposed propeller that can be used as component part of small power installations, toys, entertainment means, educational rigs for schools and collages has shaft-mounted bushing with vanes and is provided with electrical energy generation facility in the form of sealed hollow housing with end and side walls accommodating fixed inductive ring and movable permanent-magnet component. Electrical energy generating facility can be disposed on bushing at vane opposing end, between opposite vanes, between bushing and vane, or within vane.

EFFECT: enlarged functional capabilities.

5 cl, 7 dwg

FIELD: electrical engineering, applicable for starting of engines and maintenance, for example, of helicopters on airfields as a source of electric supply.

SUBSTANCE: the electric power installation has a DC generator with a drive internal combustion engine, at least two storage batteries, charging units, power supply unit and switching units. The installation is provided with an electric power cable for supply from an outer AC source connected to the power supply unit and charging devices via the switching unit, and an electric socket for power take-off from the AC generator for maintenance of the helicopter. The installation is made in a body divided into two compartments, one of them - accommodates the interconnected AC generator and the drive internal combustion engine installed on a frame, and the other is divided into two closed sections, positioned in the lower one are the storage batteries connected to the switching unit, and in the upper one - two charging units and the power supply unit, with the installation control unit placed above it. The control console is protected from the environment by an organic glass plate. The storage batteries are positioned in containers made on sleds, and the containers are provided with plug connecters used for connection of the storage batteries to the switching unit. The installation is provided with one more plug connector for take-off of DC power for ground maintenance of the helicopter on-board control systems. The power electric cable for installation supply from the outer AC power source is positioned on the handles of the rear wall of the double-section body. The power electric cable for take-off of DC power for starting of gas-turbine engines is positioned on the handles of the cover of the body engine compartment. The installation is mounted on a wheeled chassis, in front on one support with a telescopic folding pole in an eye between the wheels turning in the horizontal plane, and the pole - in the vertical plane fastened by a bracket on the body.

EFFECT: enhanced mobility and reliability in operation of the power installation.

14 cl, 3 dwg

FIELD: engine engineering.

SUBSTANCE: engine comprises two opposite step cylinder groups with movable cylinders. The faces of the working cylinder are provided with a collar which is an air-operated piston and separates the housing into the blowing and compression chambers of the piston compressor. The collar and cylindrical surface of the housing are provided with grooves for receiving a reversible linear generator. The anchors of the generators and ends of the rods of the magnetic outlet valves are provided with the permanent magnets made on the basis of Nd-Fe-B. The engine is provided with two catalytic chambers made of steel cylinders with a nozzle made of nickel grains. The inlet branch pipes of the chambers are connected with the collectors of the outlet ports in the working chambers, and outlet fuel branch pipes of the catalytic chambers are connected with the combustion chambers through the inlet valves. Each of the catalytic chambers is provided with the gas duct for supplying methane and pipeline for exhaust gases.

EFFECT: enhanced efficiency and decreases toxicity.

2 cl, 2 dwg

FIELD: electric generator sets.

SUBSTANCE: proposed electric generator set has generator driven by piston-type internal-combustion engine, for instance, synchronous generator and diesel engine; it has permanent magnets for generator excitation disposed on generator rotor in pole areas and armature winding accommodated in stator. Pole areas of rotor are provided with axial intake pockets open on at least one end whose cylindrical peripheral wall is abutting against stator-to-rotor air gap. Each of permanent magnets disposed in pole areas is formed by plurality of magnetic components mounted close to each another in peripheral direction inside intake pockets. The latter are elongated in peripheral direction either side beyond respective last magnetic component to form free space.

EFFECT: ability of preventing demagnetization of extreme magnetic components caused by short circuits.

14 cl, 5 dwg

FIELD: electric engineering.

SUBSTANCE: device has internal combustion engine and electric generator connected to its piston, containing coaxial piston-magnets, outside of which windings of electric generator stator are positioned, while piston-magnets can be engaged in reciprocal movement along axis relatively to windings of electric generator stator during continuous combustion of gas in internal combustion engine, as a result of which in windings of stator of electric generator induction of alternating three-phase current or one-phase current occurs. In accordance to invention, internal combustion engine-based electric generator is positioned in screened through reservoir, electric generator has support magnets, and working piston magnets, moving because of gas ignition, are of different names, windings of electric generator stator are wound on cylinder of non-magnetic material, which is pressed outside of said magnets, inside in bushings valves are pressed, one of which is moveable, and guiding hollow fingers, along which aforementioned magnetic pistons of internal combustion engine-based electric generator can freely move.

EFFECT: simplified construction, higher reliability and improved mass-dimensional coefficients of device.

4 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to device including internal combustion engine with piston installed for free mechanical displacement in housing. Device is adapted to provide combustion of fuel mixture to create force pushing the piston. Device includes electromagnetic energy converter and external current circuit connected with energy converter to exchange forces acting towards energy converter and from energy converter. Control unit is adapted to control direction of forces exchanged between energy converter and external current circuit during operation of device. Invention relates to device used for generating electric energy and to vehicle with such device.

EFFECT: provision of high efficiency.

27 cl, 8 dwg

FIELD: engine manufacturing.

SUBSTANCE: invention relates to method of operation of self-contained power station powered by diesel-generator set. According to proposed method of operation of self-contained power station powered by diesel generator set equipped with additional flywheel and disconnect clutch with automatic control members, additional flywheel is mounted on separate shaft which is connected with diesel-generator set by means of disconnect clutch. Preparatory operation is carried out to set power station into operation with subsequent overcoming of short-time starting resistances from consumer. Additional flywheel is connected to shut down diesel generator set by means of disconnect clutch. Power station is started under no load, and its coming to rated speed is detected by readings of generator shaft speed pickups. Load is connected and intensity of generator shaft speed drop is checked. Information is automatically transmitted to controller wherefrom, at termination of generator speed drop, signal is transmitted to disconnect clutch, and rotating additional flywheel is disconnected from diesel generator set, thus changing the set for accelerated mode of restoration of initial rated speed.

EFFECT: provision of power saving operation at stable conditions for overcoming designed resistance torque and short-time overloads exceeding capabilities of chosen supply source.

1 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to converters of heat energy, for instance, hydrogen-oxygen chemical reaction, into mechanical and/or electric energy, mainly, for different vehicles. According to invention, pollution-free engine contains electric machine with stator and rotor and power drives made in form of operating bellows members coupled with movable poles of stator. Engine has system of external combustion and delivery of primary working medium, for instance, liquefied air, steam, steam-oxygen and/or inert gas, and high-temperature system of internal combustion, for instance, of hydrogen-oxygen mixture. Combustion is carried out in primary working medium. Operating bellows members are hermetically secured by stationary sides on separate support platforms in which chambers of internal combustion system are directly mounted, and by movable sides they are hermetically secured on piston plates which are butt-jointed through heat insulating gaskets with seat grips connected with power rods. Stepped grips are mounted on movable part of bellows members for bringing of inner plate ties of bellows corrugations to preset levels in turn. Assembly of each bellows member with its support platform and gas valves is heat insulated and arranged in guard vacuum chamber.

EFFECT: improved efficiency of operation of engine with electromagnetic conversion of heat energy into mechanical and /or electric energy at low pollution of ambient atmosphere.

18 cl, 3 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering and may be used in power generators of borehole hardware. Borehole electric generator includes fastening unit, rotor with hydro turbine impeller and, at least, one group of permanent magnet which has cinematic link with hydro turbine and associated induction windings. Cinematic link with permanent magnet groups is arranged through conversion mechanism of rotary motion to reciprocal motion, which can be arranged as driven disk installed on rotor, driving disk installed on axis and spring abutting on axis end. Holes are provided inside fastening unit. Fastening unit is located in front, middle or rear part of stator.

EFFECT: increase of electric generator power and lifetime while reducing diameter sizes.

6 cl, 1 dwg

Propeller // 2321939

FIELD: conversion of wind or water flow kinetic energy into electricity.

SUBSTANCE: proposed propeller that can be used as component part of small power installations, toys, entertainment means, educational rigs for schools and collages has shaft-mounted bushing with vanes and is provided with electrical energy generation facility in the form of sealed hollow housing with end and side walls accommodating fixed inductive ring and movable permanent-magnet component. Electrical energy generating facility can be disposed on bushing at vane opposing end, between opposite vanes, between bushing and vane, or within vane.

EFFECT: enlarged functional capabilities.

5 cl, 7 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed current supply has housing accommodating current-generating section incorporating solenoid and movable magnet, electronic facilities with electric charge storage, electric drive circuits, and means for load connection/disconnection; external size of solenoid exceeds its internal size by 1.5 to 2.5 times. Movable magnet is mounted between end limiting members for shuttle movement over duct within solenoid when housing is acted upon. At least part of electronic facilities, including electric charge storage, are disposed in unit separated from housing together with load connection/disconnection means. Mentioned separate unit has easily separable means for attaching unit to housing and flexible cable connection between them. Reel assembly is disposed on housing periphery for cable winding and unwinding.

EFFECT: improved performance characteristics, enhanced efficiency, enlarged functional capabilities.

15 cl, 2 dwg

FIELD: electrical engineering, electromagnetic generators serving as self-contained supply sources of microelectronic circuits of independent objects.

SUBSTANCE: the generator has a cylindrical body made of a ferromagnetic material, sealed on both sides with stoppers made of a nonmagnetic materials, a thin-walled ferromagnetic anisotropic frame with windings located an it is inserted in the body, the windings are mesh series-connected and fixed by nonmagnetic rings. The magnetic system consists of a permanent magnet and pole pieces made of a ferromagnetic material. Bpτ=0.5÷0.6, where bp - the width of the pole piece, τ - the width of the winding.

EFFECT: enhanced strength of the construction, reduced mass and overall dimensions.

1 dwg

FIELD: electrical and radio engineering.

SUBSTANCE: the electric generator has a body, electromagnetic system installed in it, the system has one or several circular inductance coils positioned in a row, they have a cylindrical generating magnet installed for reciprocating motion inside the duct coaxial with the coil, between the restricting components on its ends outgoing beyond the coil. The relative dimensions of the mentioned components are in the following range: the coil outside diameter exceeds the inside one by (1.5 to 2.5) times, the coil length makes up (0.75 to 1.25) of the magnet length, the magnet length makes up (0.75 to 1.25) of the magnet diameter, the distance between the restricting component and the coil makes up (0.75 to 1.25) of the magnet length.

EFFECT: expanded field of application due to enhanced power efficiency as a current source and reduced overall dimensions and mass.

11 cl, 1 dwg

FIELD: electric engineering, possible use in dynamic magnetic systems for producing electric energy.

SUBSTANCE: in accordance to invention dynamic system of magnets is proposed, wherein several magnets are used, poles of the same name of which face each other for individual movement relatively to bearing structure. Magnets have critical shifting angle from horizontal static position less than 1 degree. At least some magnets have mutually different properties. When different magnetic inductions are present, larger movement occurs for both magnets in response to movements of bearing structure for certain ranges of relations of magnetic inductions, that would happen in case with similar magnets. Movement of magnets may be transformed to electric signal for feeding energy to active system. For setting static friction coefficient between magnets and bearing structure less than 0,02, supports based on magnetic liquid providing ultra low friction may be used, resulting in production of useful energy just from small movements of bearing structure.

EFFECT: increased production of electric energy due to improved connection between bearing structure and magnets.

8 cl, 6 dwg

FIELD: electrical engineering, space rocketry, power engineering, and domestic appliances.

SUBSTANCE: proposed magnetoelectric generator has insulating housing with permanent-magnet components installed at its ends. Housing accommodates magnetic circuit disposed in a spaced relation to its walls for moving between end permanent magnets and assembled of movable permanent-magnet component, nonmagnetic link, and additional movable permanent-magnet component. Housing walls have through slots and its outer surface mounts two magnetic guides of three or more permanent-magnet components, as well as electricity conducting circuit closed to rectifier and additional electricity conducting circuit closed to additional rectifier. Movable magnetic circuit is held within generator in soaring or suspended (from magnetic hanger) state relative to insulating housing and electricity-conducting circuits. Movable magnetic circuit axis is oriented at certain angle to direction of external magnetic-field disturbances, and natural oscillation frequency of movable magnetic circuit under impact of such disturbances coincides with frequency of any harmonic out of external magnetic field disturbance spectrum.

EFFECT: ability of converting external magnetic field disturbance energy into electrical energy, reduced size and mass of generator most effective in nanotechnology.

1 cl, 2 dwg

Electrical machine // 2273086

FIELD: linear electrical machines that can be used for piston-type internal-combustion engines.

SUBSTANCE: proposed electrical machine has stator incorporating set of magnetic-flux conductors 3', 3" and electrical conductor that forms winding passed, in effect, over closed path around each magnetic-flux conductor, as well as movable part 10 incorporating a number of permanent-magnet components 12', 12" which is free to reciprocate along motion path with respect to stator. Winding path includes first current-carrying part 6a running, in effect, in parallel with motion path. Each magnetic-flux conductor 3', 3" is adapted to organize closed circuit of magnetic flux jointly with one of permanent-magnet components 12' or 12" around current-carrying part. Magnetic-flux conductors are alternately arranged with respect to direction of magnetic flux relative to permanent-magnet components in respective magnetic-flux circuit.

EFFECT: enhanced effectiveness of using available space and mass of machine.

11 cl, 19 dwg

Electrical machine // 2271596

FIELD: electrical machines.

SUBSTANCE: proposed electrical machine has stator incorporating plurality of magnetic-circuit components 3', 3" and electrical conductor that forms winding passed over closed path through each component of magnetic circuit, as well as one movable component 10 incorporating a number of permanent-magnet components 12', 12" and designed for translational movement relative to stator along first motion path in space having finite length and formed by at least some components of magnetic circuit. Winding path includes current-carrying section 6a parallel to first motion path. Each magnetic-circuit component 3', 3" is mounted for organizing, together with one of permanent-magnet components 12', 12", closed circuit of magnetic flux around current-carrying section.

EFFECT: reduced space requirement of electrical machine.

13 cl, 13 dwg

FIELD: electric engineering.

SUBSTANCE: device has internal combustion engine and electric generator connected to its piston, containing coaxial piston-magnets, outside of which windings of electric generator stator are positioned, while piston-magnets can be engaged in reciprocal movement along axis relatively to windings of electric generator stator during continuous combustion of gas in internal combustion engine, as a result of which in windings of stator of electric generator induction of alternating three-phase current or one-phase current occurs. In accordance to invention, internal combustion engine-based electric generator is positioned in screened through reservoir, electric generator has support magnets, and working piston magnets, moving because of gas ignition, are of different names, windings of electric generator stator are wound on cylinder of non-magnetic material, which is pressed outside of said magnets, inside in bushings valves are pressed, one of which is moveable, and guiding hollow fingers, along which aforementioned magnetic pistons of internal combustion engine-based electric generator can freely move.

EFFECT: simplified construction, higher reliability and improved mass-dimensional coefficients of device.

4 dwg

FIELD: electrical engineering.

SUBSTANCE: invention pertains to electrical machines and is meant for supplying borehole equipment. The turbo generator has a protective case, at least one attachment unit, an immoveable axis with a hole through the centre, on which a stator is fitted with an exciting coil, connected to an electrical connector, and a rotor mounted on bearings, with at least one turbine, the inside of which fitted with a group of permanent magnets. Inside the rotor there is an extra group of permanent magnets. On the stator there is an extra exciting coil, connected to an electrical connector, fitted on the lower end of the stator. The rotor has upper and lower parts, mounted on three bearings, fitted on an immoveable axis, which also has upper and lower parts, joined together. One of the exciting coils is low voltage and the second is heavy loaded. Cables from the exciting coils to the electrical connector pass through the opening inside the immoveable axis. The inner cavity of the turbo generator is filled with lubricating liquid. The lubricating liquid filling hole is made on the top and has a screw.

EFFECT: reduction of diameter dimensions and weight of the generator.

3 cl, 1 dwg

Up!