Creation method of vortical magnetic field

FIELD: physics.

SUBSTANCE: invention concerns magnetism physics, to obtaining of the unidirectional pulsing vortical magnetic field creating a magnetic field pulling on a circle in relation to an iron-core body to moving in it. The creation method of a vortical magnetic field along some circle, equivalent to magnetic field rotation, consists that some constant magnets are symmetrically located concerning a circle. Longitudinal magnetic axes of constant magnets are combined with tangents to the specified circle in the points symmetrized on this circle. The number n constant magnets is defined from a condition: 2π/n ≤ ΔΘ, where angle ΔΘ=arccos[1/(1+γ)], parametre γ=d/R, and d - distance from cross points of longitudinal magnetic axes of constant magnets with their planes of poles to the specified circle of radius R. Force function of constant magnets D and the parametre are chosen in a such manner, that the retarding moment created by the previous magnet, partially or it was completely compensated by the accelerating moment of the subsequent magnet in a direction of a vortical magnetic field. Value D=µ0µνS2H02/8π2R5, where µ0=1,256·10-6 H/m - absolute magnetic permittivity of vacuum, µ relative permeability of an iron-core body in volume ν that interacts with the magnetic field which intensity is equal H0 in a plane of poles of constant magnets with a cross section of their poles S.

EFFECT: reception of rotary movement of an iron-core body, that is in reception of mechanical (electric) energy from static magneto-periodic structure.

6 dwg

 

The invention relates to the physics of magnetism, in particular to methods for the configuration of the magnetic field in the form of unidirectional pulsating vortex field, creating a pulling around the circumference of the magnetic field with respect to moving it to the ferromagnetic body (eccentricity).

It is known that the magnetic field strength along the longitudinal axis of the magnet is twice more than in directions orthogonal to the longitudinal magnetic axis. The distribution of magnetic field within a sphere whose center coincides with the point of intersection of the plane of the magnetic poles of a horseshoe magnet with a longitudinal magnetic axis is defined pattern, for example, in the form of a body of rotation about the longitudinal magnetic axis contour cardioid, given by the expression:

where α is the angle the radius vector to an arbitrary point on the sphere from a direction coincident with the longitudinal magnetic axis. Thus, when α=0 we have ξ(0)=1, when α=π/2 we get ξ(π/2)=0.5, which corresponds to well-known physical data [1]. For horseshoe magnet when α=π ξ(π)=0. For direct magnet pattern is represented by an ellipsoid of rotation, the semimajor axis of which is twice the small axis and coincides with the longitudinal magnetic axis.

It is known that the rotational moment, soo is returned to the rotor of the synchronous or asynchronous AC motor from its stator, occurs due to the rotating magnetic field vector which rotates about the axis of the rotor as a function of time. When this magnetic field specifies the dynamic process of its interaction with the rotor.

Unknown ways to create a vortex magnetic field synthesis static magnetic fields generated by any set of stationary permanent magnets. Therefore, unknown equivalents to the claimed technical solution.

The aim of the invention is a method of creating a vortex magnetic field, in which the ferromagnetic body is under the action of the unidirectional pulsating force that causes a body in rotational motion, i.e. the receipt of such static configuration of the magnetic field (from stationary spaced permanent magnets), which is equivalent to the effect of a rotating magnetic field.

The objective is achieved in the present method of creating a vortex magnetic field, consisting in the fact that a number of permanent magnets symmetrically feature relative to the circumference of the longitudinal magnetic axis of the permanent magnets combined with a tangent to the circle at points situated symmetrically on the circumference, and the number n of permanent magnets are found from the condition 2π/n≤ΔΘ, where the angle ΔΘ=arccos[1/(1+γ)], the parameter γ=d/R, a d is the distance between the points is the intersection of the longitudinal magnetic axes of the permanent magnets with their poles to planes of the specified circle radius R, the power function of permanent magnets D and the parameter γ is chosen so that the braking torque generated by the previous magnet, partially or fully offset by accelerating the moment the future of the magnet in the direction of the vortex magnetic field, and the value of D=µ0µνS2H02/8π2R5where µ0=1,256 .10-6GN/m is the absolute magnetic permeability of vacuum, μ is the relative magnetic permeability of the ferromagnetic body volume ν, which interacts with the magnetic field intensity is equal to N0in the plane of the poles of the permanent magnets with a cross-section of their poles S.

The goal of the invention in the inventive method is explained by the implementation of a periodic structure of magnetic fields around a circumference direction of the longitudinal magnetic axes of the permanent magnets of the same sign on tangents to this circle, in which the vortex magnetic field occurs due to the difference of the magnetic field along and across the longitudinal magnetic axes of the permanent magnets defined by the pattern of tension ξ(α) of the magnetic field according to (1). This provides the excess of angular momentum in the direction of the vortex magnetic field, reported to the ferromagnetic body, the angular momentum in the opposite direction.

The structure of the device that implements the inventive method, shown in figure 1. Possible movement of the ferromagnetic body in a magnetic field of one of the n permanent magnets are presented in figure 2 for different values of loads and friction on the axis of rotation of the eccentric with the ferromagnetic body. Figure 3 shows the graphs of valid n of permanent magnets driving ferromagnetic body eccentric forces with regard to their distribution according to the rotation angle of the eccentric within the circle. Figure 4 shows a graph of accumulation of momentum force of the eccentric from all n of permanent magnets for each full rotation without friction torque and attached load, expressed as the average torque, permanent in Cam. Figure 5 shows the graphs of output from the rotational moment generated by the vortex magnetic field, and from the moment of loss as a function of speed of rotation of the eccentric. Figure 6 gives the scheme of the modified device, providing a significant reduction of friction losses in the rotation axis due to the dynamic balance of the rotating rotor, instead of the eccentric.

Figure 1 implements the method, the device consists of:

1 - ferromagnetic body of mass m, volume V with a relative magnetic permeability µ,

2 - arm length R fixing fer magnitnogo body eccentric

3 - axis rotation of the eccentric,

4-15 - permanent magnets installed ramonalonso to a circle of radius R and addressed to her one of the poles (for example, the South poles s), the point of intersection of the plane with the longitudinal magnetic axis is removed from the specified circle (the path of rotation of the ferromagnetic body 1) by the distance d.

The ferromagnetic body 1 with the lever 2 shown in figure 1 in the angular position β with respect to axis X. the Axis of rotation of the eccentric is placed at point O, point a lies on the pole of the permanent magnet 5, the longitudinal magnetic axis of the permanent magnet 5 is aligned with the tangent AB to the circle at point C. In the scheme used 12 of the same parameter D and equally inclined permanent magnets symmetrically located relative to the specified circle through the angles ΔΘ=2π/12=30°.

Figure 2 presents graphs of the motion of the ferromagnetic body 1 relative to one of the permanent magnets 4-15 at different moments of friction and attached load in the axis of rotation 3, which gives a qualitative picture of the processes of interaction.

The top graph is the load on the axis of rotation is very small (the process oscillatory decaying with a maximum initial distance ferromagnetic body from the pole of the magnet, the resulting deviation in the position of the ferromagnetic body almost Nuevo is).

The middle diagram is the load on the rotation axis is large (the process is aperiodic fading with a minimum initial distance ferromagnetic body from the pole of the magnet, the target deviation is positive, not reaching to the position of the pole of the magnet).

The bottom graph is the load on the rotation axis of the optimal (oscillatory process is aperiodic fading with one half-period oscillations with a larger initial distance ferromagnetic body from the pole of the magnet, than for the middle graph, the resulting deviation is negative, the turning position of the poles of the permanent magnet).

Figure 3 is specified twelve symmetrically distributed around the circumference of the graphs of the driving eccentric forces in the respective angular intervals of size ΔΘ. It is seen that the maxima of these functions significantly more than the absolute value of their lows, which is associated with the configuration of the pattern ξ(α) of permanent magnets in a u shape (figure 1 for simplicity, the drawing shows the permanent magnets of rectangular shape). This, in particular, allows for an appropriate choice of the number n of permanent magnets, the choice of the parameter γ and the value of D, which determines the strength of the magnetic field H0in the plane of the poles of the magnets, to provide partial or full reimbursement of braking forces of the previous permanent magnet forces would accelerate the Oia from the subsequent in the direction of rotation of the eccentric permanent magnet.

Figure 4 shows a graph of the joint actions of all used in the construction of permanent magnets, resulting in an average rotational moment, constantly acting the clown.

Figure 5 shows two graphs is a graph useful power generated in the Cam, and a graph of the power required to overcome friction and attached load, as a function of speed of rotation of the eccentric. The point of intersection of these graphs determines the value of the steady-state speed in the device. By increasing the load curve of the power loss rises at a large angle relative to the x-axis that corresponds to the displacement of said point of intersection of the graphs of capacity left, i.e. leads to a decrease in the steady-state values of NMOUTHthe speed of rotation of the eccentric.

Figure 6 shows one possible implementation schemes of the device in which the rotor is constructed in the form of a dynamically balanced structure, for example, on the basis of three ferromagnetic bodies located at angles of 120° at equal distances R from the axis of rotation and with the same mass that does not generate when the rotation of rotor vibratory loads on the axis of rotation, as in the case of the eccentric in figure 1, because of the action of centripetal forces (the latter in that the rotor cancel each other out). In addition, led is an increase in the number of ferromagnetic bodies leads to the increase of the effective power in the device is proportional to the number of such ferromagnetic phone The number used permanent magnets on this drawing is reduced to simplify the drawing. Actually this number is chosen according to the formula n=h+1, where h is the number of ferromagnetic bodies in the rotor R.=0, 1, 2, 3, ... - an integer that will become clear from the subsequent description.

Consider operating the essence of the proposed method by considering the actions of the implementing device is presented in figure 1.

Given the type of pattern ξ(α) magnetic field strength H(α), we can understand that at equal distances from the point of intersection of line AB with a circle of radius R to that point and after the magnetic field will be different, namely, to that point in the direction of rotation of the ferromagnetic body, the magnetic field strength is higher than the after this point. Therefore, the force of gravity under consideration by the magnet is greater than the braking force that can be seen from figure 3 for each of the n permanent magnets. This leads to the accumulation of angular momentum when rotating the eccentric and the last message rotational motion indefinitely, if the resulting torque (figure 4) exceeds the friction torque (and attached load).

Consider, in particular, the interaction of the ferromagnetic body 1 with the permanent magnet 5 (figure 1). This permanent magnet is located so that its longitudinal magnet is th axis coincides with the tangent AB to the circle of radius R at the point C. Point a is in the plane of the magnetic pole is the point of intersection of this plane longitudinal magnetic axis AB. The distance OA=R+d, that is, the point a is at a distance d from the circle, as indicated for the permanent magnet 7. Designating by the dimensionless parameter γ is the ratio γ=d/R, the value of the line segment AB is found from the expression r0=AB=R(2γ+γ2)1/2. The angle ΔΘ=2π/n determines the angular interval in the arrangement of permanent magnets symmetrically with respect to a given circle, and the angular position of the respective permanent magnet, measured from the X axis of the coordinate system is Θi=2πi/n, where i=1, 2, 3, ... 12. The instantaneous angular position of the ferromagnetic body 1 with the lever 2 will denote by β, and the angular position of the point b on the circle around the X-axis denoted as β0i(for permanent magnet 5 point is on the X-axis, so the angle β01=0). For permanent magnet 6, the angle β02=ΔΘ, for permanent magnet 7 β03=2ΔΘ, etc. and for the permanent magnet 4 β012=11ΔΘ. The angles β0iand Θirelate to each other on a constant difference Θi0i=arccos[1/(1+γ)]. By simple transformations of the distance from the center of the ferromagnetic body to the point And at the pole of the permanent magnet 5 (in the General case for the i-th permanent magnet) is found from the expression:/p>

for the range 0≤β≤2π. For permanent magnet 5 is Θ1is chosen equal to ΔΘ. The angle α between the longitudinal magnetic axis AB of the permanent magnet 5 and the line between the center of the ferromagnetic body 1 and the point a is found from the expression:

by taking the inverse trigonometric functions α=arcos Q. Note that in figure 1 the angle α>π/2, i.e. the ferromagnetic body is in a braking magnetic field of the permanent magnet 5 and the accelerating magnetic field of the permanent magnet 6.

Substituting found from (3) the value of α in the expression (1), we obtain for the chart ξ(α) ratio:

The magnetic field strength at the point of location of the ferromagnetic body relative to the magnetic pole is determined by the distance r(β) according to (2) and equal with regard to (4):

but the force of attraction FM(β) a ferromagnetic body, a permanent magnet is defined as:

where D=µ0µνS2H02/8π2R5as was stated above.

The vector of the magnetic force FM(β), projected onto orthogonal to the eccentric lever, determines the magnetic driving eccentric force FM DV(β), which is defined as:

and which is determined by the t of the rotational moment M(β)=F M DV(β)R, the average value MCPdetermined by integrating over the interval 0≤β≤2π forces FM DV(β) for all n permanent magnets, whose form is shown in figure 3, figure 4 presents without taking into account the friction torque and the moment of the attached load.

Useful power PBP=MCFω, where ω is the angular velocity of the rotation of the eccentric; her schedule is specified in the form of a sloping straight line in figure 5. As is known, the friction force (connected load) is proportional to the speed of rotation of the eccentric, so the power loss seems to be a parabolic curve in figure 5. The speed of rotation of the eccentric N=ω/2π [Rev/s] is increased to a value of NMOUTHwhere the useful power and the power loss due to friction and attached load are equal to each other. This is represented graphically in figure 5 the point of intersection of the sloped straight line with a parabola. Therefore, in the idle mode (i.e. when the action only friction in the rotation axis) angular velocity of the eccentric maximum and decreases with the accession to the axis of rotation of the external load, as is typical, for example, for DC motors with series switching.

The device that implements the inventive method, based on the organization magnetovariational structure with the longitudinal orientation of the magnetic axes of the permanent magnets (or power is of Agnico) from like poles on tangents to a circle, which is the trajectory of the rotational motion of the ferromagnetic body, while the vortex magnetic field, pulling ferromagnetic body circumference in one direction occurs due to the excess of the magnetic field in the longitudinal direction of the magnetic axis with respect to the other angular direction that is determined by the pattern ξ(α) according to expressions (1) and (4).

For understanding the processes of formation of the vortex magnetic field, adequate rotating magnetic field, in such a purely static structure need to show that obliquely mounted permanent magnet can result in the movement of the ferromagnetic body so that it is depending on the magnitude of the friction force acting on the ferromagnetic body is either contained in a damped oscillatory movement to stop him near the poles of the permanent magnet with virtually zero offset of either sign about a point And a permanent magnet (magnet 5 in figure 1), or is stopped before or after the line AO, as shown in the middle and lower the diagrams in figure 2. When a substantial amount of friction ferromagnetic body will stop before reaching the line AO (positive residual offset). This fact is easily explained by the fact that the driving eccentric force according to the expression (7) proport online cos(α+β-β 0i), the argument of which when the ferromagnetic body against a decision point And is equal to π/2, since β=β0iand α=π/2, i.e. when the exact coincidence of the center of the ferromagnetic body line JSC driving magnetic force FM DV(β) equal to zero, and the ferromagnetic body in the presence of friction can never take a position on the line AO, excluding the factor of its inertia. This is shown in the middle diagram of figure 2. If friction is selected optimal ferromagnetic body is attracted by the permanent magnet more intensively than hindered them, so the center of the ferromagnetic body will cross the line AO of inertia, as if the fading oscillatory mode with a low friction and stops behind the line AO (negative residual offset)that is indicated in the bottom diagram of figure 2.

The above reasoning is assumed that the ferromagnetic body was at rest or with negligibly slow rotation. So with a very low friction (in modern bearings, the friction coefficient can have a value of ≥0,0005) the distance between the pole of the magnet and the ferromagnetic body, on which the magnet begins to move the ferromagnetic body is large enough (in figure 2 for the top of the chart this distance is one in relative terms). With a large friction specified distance is minimal (on average diagrammatic it is equal to 0.25), and at the optimum friction this distance is greater than a specified minimum, but less than the maximum (the lower diagram of figure 2, it is equal to 0.75). The latter means that in this optimal friction ferromagnetic body receives sufficient acceleration and skips the inertia of the line AO, as in oscillatory motion with low friction, but after making the half period of oscillation stops considerably short of the line AO. This ferromagnetic body would have stopped and continued to remain at rest, if it wouldn't act the accelerating magnetic field of the next permanent magnet 6 (figure 1). Since the start the device offers a single message eccentric external angular momentum, that is, bringing his force into rotational motion, in the case of optimal friction Cam moves by inertia, receiving each time the sequence of permanent magnets unidirectional current (integral interpretation) angular momentum, which supports the movement of the eccentric indefinitely into the vortex magnetic field.

Thus, once behind the line AO, the ferromagnetic body is drawn next in the direction of rotation of the permanent magnet 6 and continues its movement towards him, and then to the permanent magnet is 7 and so on in a circle. System of permanent magnets is constructed so that the braking magnetic field of the previous permanent magnet is partially or completely suppressed accelerating magnetic field of the next permanent magnet. This is achieved by selecting the number n of permanent magnets and a constant parameter γ, and the design of permanent magnets, defined by the constant D. figure 3 magnetic driving forces FM DV(β) distributed in the range of angles 2π so that there is full compensation forces, braking forces of acceleration, although the highs last approximately three times more modules minimum braking (instead of twice, which indicates the specified partial compensation). If you increase the number n of permanent magnets, for example, by increasing the radius R or the reduction of the gap d (that is, a decrease in γ), can significantly weaken the influence of braking and increase the useful power of the device.

When the movement of the ferromagnetic body in relation to the group of permanent magnets is feeding the rotational state of the rotational pulses of the same sign from the sequence of permanent magnets placed in a closed path (circle), which leads to a continuous rotational movement of the ferromagnetic body. As noted above, start the device produce a single external influence is with a given initial angular velocity. From the stationary state, the device cannot switch to rotational motion spontaneously that describes this device as a generator with hard mode excitation.

The calculation device of the twelve permanent magnets (n=12) with a cross section of their poles S=8,5 .10-4m2ferromagnetic body of mass m=0.8 kg, body volume, ν=10-4m3with a relative magnetic permeability µ=2200, with a lever length of R=0.2 m and a gap of d=0.03 m (γ=0,15) was performed by Microsoft Excel when choosing permanent magnets with a magnetic field at the poles of H0=1 kA/m for the value D=10-4N. the Results of these calculations are shown in graphs 3, 4 and 5 in quantitative representation.

The disadvantage of this device with the rotor in an eccentric is a significant vibration. To resolve it you should use dynamically balanced rotors of several (h) symmetric ferromagnetic bodies, as is schematically shown in Fig.6. In addition, this leads to an increase in h once output (useful) power devices. Was previously referred to the fact that the number of permanent magnets n in such a device must be equal to n=pH+1. Thus, when h=3, the number n may be equal to the number n=4, 7, 10, 13, 16 etc. This will dramatically reduce vibration from the rotor is of mulsow force. In addition, inside the ferromagnetic bodies may be made of an induction coil, in which the induced EMF due to the periodic magnetization and demagnetization of ferromagnetic bodies during their movement relative to the magnetic system. Interestingly, these cell have the oscillation frequency f=Nn and are shifted in phase oscillations from each other by 120°, as in three-phase generator. This can be used in low energy as generating three-phase AC power module with high frequency (with frequency of 400...1000 Hz), for example, to power the gyros in the Autonomous space flight. Conclusion three-phase current with inductors of ferromagnetic objects by using insulated ring electrodes, which are provided with contact brushes.

Finally, it should be noted that increasing the number n of permanent magnets so that ΔΘ>2π/n, as indicated in the claims (figure 1 ΔΘ=2π/n), with a corresponding increase of the parameter γ increases the length of the interval r0there is overlapping of the zones of attraction of the ferromagnetic body adjacent permanent magnets, which allows to neutralize the action of the braking zones and to increase the power of the device.

The phenomenon of the obtaining of the vortex magnetic field from a static device and without loss of magnetic properties of the COI is lsemaj permanent magnets in conflict with existing views on the impossibility of creating a "perpetum mobile", so physicists-theorists dealing with the problems of magnetism, you will need to find an explanation for this phenomenon. Similar phenomena have been established by the author [2-5] in the study of the movement of ferromagnetic rings in periodic magnetic structures with saturating magnetic fields when using the known properties of the magnetic viscosity of ferromagnets, as well as the properties of reducing the relative magnetic permeability of ferromagnetic materials in the saturating magnetic field (curve Agitative, 1872).

Tested device that implements the inventive method, it is necessary to charge the MIFI (Moscow) or the Institute of RAS associated with application issues magnetism and energy. Should encourage the patenting of inventions in the major developed countries.

Literature

1. Ebert, Short, Handbook of physics, Tr., edited Cpecowve, ed. 2nd, YFML, M., 1963, str.

2. Smaller OF, Ferromagnetic thermodynamic effect. A request for priority from 23.07.2007, M., MANO.

3. Smaller OF, magnetic-viscous pendulum, RF Patent №2291546 priority from 20.04.2005, Publ. in bull. No. 1 dated 10.01.2007.

4. Smaller OF, Ferromagnetiske rotator, RF Patent №2309527 priority from 11.05.2005, Publ. in bull. No. 30 dated 27.10.2007.

5. Smaller OF, magnetic-viscous rotator, RF Patent №2325754 priority from 02.10.2006, Publ. in bull. No. 15 from 2705.2008.

The way to create a vortex magnetic field, consisting in the fact that a number of permanent magnets symmetrically feature relative to the circumference of the longitudinal magnetic axis of the permanent magnets combined with a tangent to the circle at points situated symmetrically on the circumference, and the number n of permanent magnets are found from the condition 2π/n≤ΔΘ, where the angle
ΔΘ=arccos[1/(1+γ)], the parameter γ=d/R, a d is the distance between points of intersection of the longitudinal magnetic axes of the permanent magnets with their poles to planes of the specified circle of radius R, the power function of permanent magnets D and the parameter γ is chosen so that the braking torque generated by the previous permanent magnet, partially or fully offset by accelerating time subsequent permanent magnet in the direction of the vortex magnetic field, and the value of D=µ0µνS2H02/8π2R5where µ0=1,256·10-6GN/m is the absolute magnetic permeability of vacuum, μ is the relative magnetic permeability of the ferromagnetic body volume ν, which interacts with the magnetic field intensity is equal to Naboutin the plane of the poles of the permanent magnets with a cross-section of their poles S.



 

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6 cl, 9 dwg

FIELD: physics; electricity.

SUBSTANCE: invention aims at forced feed of switch electromagnet coil from DC and AC voltage source. Device ensures required forced making and confinement conditions at rated electromagnet gate voltage automatically maintaining these conditions with gate voltage multiplication. Operation of the controller is based on the invariant principle of pulse voltage stabilisation in the coil both in forced making and confinement conditions. Electromagnet controller contains transistor key, matching key element within control circuit, electromagnet coil shunting diode, timer, pulse generator, two switches, current-specifying circuit, two integrating capacitors and auxiliary power supply.

EFFECT: higher performance reliability within wide range of gate voltage and extended applications of device.

8 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: invention is attributed to electric engineering and can be used for instance in high-speed automatic circuit-breakers. The drive comprises power source, exciting coil, electronic switch connected in parallel with exiting coil, diode connected in parallel with exiting coil and electromechanical relay terminals of which are connected in parallel with electronic switch.

EFFECT: elimination of voltage drop on semiconductor junction of electronic switch when the drive is switched on, absence of additional costs for maintenance of electromechanical relay terminals due to arcless commutation of exiting coil terminals by contacts of specified relay, increase in resistance to voltage sags of drive power supply, decrease in dimensions of electronic switch radiator.

1 dwg

FIELD: electric engineering.

SUBSTANCE: circuit of polarised electromagnet connection contains current source, breaker, normally closed contacts, polarising and control windings. Windings are connected serially and are connected to current source through breaker, and normally closed contacts are connected parallel to control winding, which when broken connect control winding for electromagnet actuation.

EFFECT: increase of fast-action without increase of dimensions and weight.

2 dwg

FIELD: physics; transportation.

SUBSTANCE: in the method of controlling pulling force of a magnetic drive, involving movement of the armature of a magnetic system relative the magnetic system of the magnetic drive orthogonal to magnetic field lines, the pulling force is controlled by turning the armature of the magnetic system around its axis relative the magnetic system of the magnetic drive. The magnetic systems can be made from permanent magnets and/or electromagnets. The value of the pulling force is proportional to the value of the turning angle of the armature and is determined from the mathematical function: Fα=Fo(360-2nα)/360 under the condition 360/n≥2nα≥0, where α - is the angle of turn of the armature of the magnetic system relative the magnetic drive, in degrees, n - is the number of poles along the circle of the armature of the magnetic system, Fo - is the force, required for axial displacement of armature of the magnetic system, when the strength of the magnetic resistance is minimal (α=0); Fα - is the force, required for axial displacement of the armature of the magnetic system, at a given angle, α.

EFFECT: wider functional capabilities of powered devices due to continuous control of the pulling force of a magnetic drive under effect of an external force applied to the armature.

3 dwg

FIELD: electricity.

SUBSTANCE: invention is attributed to the field of electric engineering. Each electromagnet module contains magnetic conductor with sharply defined poles and non-magnetic flanges, control windings and four-pole anchor with sharply defined poles, which anchor is rigidly connected with torsion spring which is attached to one non-magnetic flange of magnetic conductor and is freely passing through the other flange, and is installed with possibility to turn in interpolar space of magnetic conductor. Magnetic conductor consists of two plates, non-magnetic spacer sleeves and constant magnets installed between plates of magnetic conductor at that in the plates of magnetic conductor and in non-magnetic spacer sleeves mounting holes are made. Four-pole anchor is made with magnetic shunts in the form of projections, all modules are joined by means of rigid fixing of four-pole anchors on common torsion spring.

EFFECT: power consumption decrease, providing of predefined operation speed and travel speed of moving element when overall size of electromagnet is limited in one of the dimensions.

3 dwg

FIELD: electricity.

SUBSTANCE: electromagnetic drive of switch device contains magnetic conductor with reel, located on its central plunger, basic armature and trip-free release armature. Magnetic conductor is implemented as built-up with L-shaped elements, where some of flank outsides are joint and forming magnetic conductor central plunger, and others of flank outsides are located in a one plane. Basic armature and trip-free release armature are also implemented as L-shaped elements, forming closed detachable circuits with L-shaped elements of magnetic conductor.

EFFECT: processability increasing and reducing of electric steel consumption.

2 dwg

FIELD: electrical engineering.

SUBSTANCE: invention pertains to electrical engineering and can be used in objects, containing a d.c electromagnet, for example, in electromagnetic relays, contactors etc. The d.c electromagnet with superexcitation has a coil with a resistor, a supply voltage source, a circuit opening contact and a threshold element. The threshold element has a resistor, semiconductor voltage detector, transistor switch, capacitor and a diode, connected in the circuit of the d.c electromagnet in accordance with instructions in the material of the application.

EFFECT: increased reliability of operation of the dc electromagnet with superexcitation under conditions providing for its connection to low supply voltage.

2 cl; 2 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering and may be used as valve control actuator or fuel injector in automobile internal-combustion engine. Electric magnet contains integrated in accord and located coaxially polarising and control windings with additional magnetic element of magnetic system installed between them. Magnetic element is made of soft magnetic material, and polarising winding with additional magnetic element of magnetic system surrounding control winding.

EFFECT: improvement of fast electric magnet action.

1 dwg

Magnetic system // 2329557

FIELD: instrument making.

SUBSTANCE: invention can be used for analysing characteristics of large-volume plasma formations in transverse and lengthwise magnetic fields, the space phenomena of natural character, laboratory simulation of space plasma, and also in medicine and biology for research of influence of constant magnetic fields of the moderate intensity on biological objects. The magnetic system includes magnetic circuits with solenoids closed on pole tips. The device contains, at least, two C-shaped magnetic circuits with truncated cone adapters being arranged between them with their smaller diameter equals the diameter of magnetic circuit. The magnetic circuits are designed to allow varying the height of an air gap between pole tips, while solenoids being uniformly distributed along the said circuit length. Magnetic circuits and pole tips can be made from structural steel 20.

EFFECT: chances of analysing the characteristics and properties of great-volume plasma formations in crosswise and lengthwise magnetic fields with intensity of up to till 0.02 T and those of various biological, technical and technological objects and processes.

4 cl, 4 dwg

FIELD: driving of working elements in mechanical engineering, shipbuilding, and other industries.

SUBSTANCE: proposed device has power supply, storage capacitor, and controllable switches whose quantity depends on number of electromagnetic mechanisms; these switches are connected in parallel with control circuit and in series with coils of electromagnetic mechanisms; current limiter made in the form of switching regulator incorporating choke, current sensing resistor, control unit, off-operation switch, and diode is inserted between power supply and storage capacitor.

EFFECT: enhanced operating reliability, reduced power requirement, mass, and size.

1 cl, 1 dwg

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