Electric machine

IPC classes for russian patent Electric machine (RU 2477916):

H02K5/16 - Means for supporting bearings, e.g. insulating support, means for fitting the bearing in the bearing-shield (magnetic bearings H02K0007090000)

H02K1/27 - DYNAMO-ELECTRIC MACHINES (measuring instruments G01; dynamo-electric relays H01H0053000000; conversion of dc or ac input power into surge output power H02M0009000000; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R)

H02K1/12 - DYNAMO-ELECTRIC MACHINES (measuring instruments G01; dynamo-electric relays H01H0053000000; conversion of dc or ac input power into surge output power H02M0009000000; loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers H04R)

Another patents in same IPC classes:

Electric machine / 2474945

Electric machine comprises a tight body, in the cavity of which a laminated stator core is installed with open slots, where winding coils are arranged, and a rotor. At the same time the laminated stator core is equipped with radial packet-to-packet ventilation channels, aerodynamically communicated longitudinal channels of the body with inlet holes communicated via a filter with environment, conductors of the winding of each stator slot are fixed with a wedge and a key insert contacting with it, the cross section of which is arranged as capable of fixing the key insert back under the slot wedge, and the section of the ledge corresponds to the section of the slot splint, the surface of the key insert back along its entire length is equipped with a longitudinal chute communicated with packet-to-packet ventilation channels of the stator core, volumes of key inserts protruding above the surface of the stator core cavity are combined into a tubular bushing, preferably made from segments, with formation of the inner surface of cylindrical shape, besides, in the cavity of the body there are cylindrical bushings installed, the diameter of the cavity in which is equal to the diameter of the tubular bushing, between ends of the stator core and ends of cylindrical bushings facing them there are thrust rings installed, the cavity of which exceeds the diameter of the cylindrical cavity of the stator core, equipped with a collar, covering a part of the outer surface of the cylindrical bushing. Thrust rings are made of non-magnetic material and are fixed with a stator core, cylindrical bushings are installed as capable of radial displacement relative to the longitudinal axis of the cylindrical cavity of the stator core, for this purpose contacts of bushings with the body, end shield and thrust rings are equipped with sealing rings made with the possibility of elastic deformation radially and along the relatively longitudinal axis of the stator core. The electric machine comprises an inductor with the outer cylindrical surface made of poles, permanent magnets, non-magnet wedges, a shaft, the length of which exceeds the length of the inductor, besides, with the inductor ends there are end cylindrical bushings fixed rigidly, which are made of a non-magnetic material and arranged aflush with the outer surface of the inductor.

Plain thrust-journal bearing on shaft driving end of asychronous machine of vetohin for oil-and-gas wells (amv ogw) / 2449455

Creation of multipurpose high-loaded thrust-journal bearing on shaft driving end of submersible electric motor of vertical open design is executed using inserts made of high-density frictionproof powder material. Asynchronous machine (AMV OGW) contains housing (1), shaft (2) with collar (3) on driving shaft end and having thrust surfaces (4) and (11) at both sides which surfaces function as moving sliding surfaces (4) for pump, (11) for drilling gear. For immovable parts of bearing, inserts (6) and (10) are used which are made of high-density frictionproof powder material with the same sliding surfaces (4) and (11) allowing motor to work with its driving end up for pump driving and down - for drilling gear driving. Cooling of bearing sliding surfaces is executed by fluid environment through holes (13) and (14) in the housing (1) and through free gaps (7), (15), (16), (17) between the housing (1) and the shaft (2).

Radial thrust plain bearing on idle shaft extension of vetockhin induction motor for oil-and-gas wells / 2444831

Downhole induction motor shaft idle extension supports radial thrust plain bearing to make rotor aligned with stator bore and keep working clearance between rotor and stator invariable. Proposed induction motor comprises housing 1, end shield 4, shaft 6 with idle extension provided with moving thrust sleeve 8 that has thrust sliding surface 9 radial sliding surface 10. Fixed bearing insert 11 made from high-density powder material and having similar sliding surfaces 9 and 10 is tightly fitted in cylindrical recess of said bearing shield. Sliding pairs are cooled down via free clearance 12 and bearing shield holes 13. Cooling water is fed outside via holes 14 and 15 in housing 1.

Noncontact electric motor / 2424611

Noncontact electric motor includes hollow cylindrical nonmagnetic slotless stator with winding, which is arranged between parts of composite rotor. Outer part of rotor is made in the form of ferromagnetic shell, and inner part is made in the form of cylindrical constant magnet fixed on shaft in bearings. The latter are arranged in support sleeves of stator ends, which can be made from heat-resistant dielectric material.

Hydrogenerator / 2418979

Hydrogenerator includes rotor 1, oil bath of centre plate, which has external and internal walls 3 and 6, support elements 4, cover 7 and condensers 8 of oil vapours and detachable ring filter 9, gravity filter 10 and water ejector 11, which are arranged on cover 7 and attached to each other and through condenser 8 to air cavity of oil bath, absorption cooling chambers with oil receiver, non-return valve 13 and tight valve 22. In oil bath there installed are flexible U-shaped pipelines 23 which are rigidly pressed by means of clamps to walls 3 and 6 of oil bath and to its bottom 2. Inlet edges of face of pipelines 23, which are adjacent to wall 6, are located in air cavity of oil bath restricted with rotor 1 and wall 6 and above level of oil filling the oil bath. Outlet edges of pipelines 23 which are adjacent to wall 3 are located in air cavity of oil bath restricted with rotor 1, wall 3 and cover 7 and above level of the oil filling the oil bath and inlet edges of pipelines 23 which are adjacent to wall 6.

High-speed electric machine / 2385524

In proposed high-speed electric machine, comprising body equipped with end shields, stator core equipped with winding, in cylindrical cavity of which there is a rotor installed with gap, comprising inductor and bearing unit, according to invention, bearing unit is arranged with the possibility of gas dynamic support of rotor, for this purpose outer surface of rotor is shaped as a cylinder, besides it is located in cavity of cylindrical bush, preferably thin one, fixed against slipping in end shields, with a gap to its surface, open at the side of end shields, besides bush is made of insulation non-magnet antifriction material.

Electric machine / 2385523

In proposed electric machine, comprising body arranged with the possibility to supply cooling gas into its cavity, equipped with end shields and facilities for supply of cooling gas to units arranged in body cavity, stator core equipped with winding, in cylindrical cavity of which there is a rotor installed with gap, comprising inductor and bearing unit, according to invention, bearing unit is arranged with the possibility of gas dynamic and gas static support of rotor, for this purpose outer surface of rotor is shaped as a cylinder, besides it is located in cylindrical cavity of bush fixed against slipping in end shields, between outer surface of bush and stator core cavity surface inverted to it there are longitudinal channels arranged, bush is installed with gap versus surface of rotor and is arranged of insulation non-magnet antifriction material, besides cavities of longitudinal channels are communicated with gap between bush and surface of rotor, at least via one circular row of through holes in bush wall.

Electric machine with axial spring-controlled element / 2361348

Invention relates to electric engineering, and particularly, to electric machines and deals with their specific design being provided axial spring-controlled element. The said element is installed between rotor part on rotor shaft and antifriction bearing. Mainly, electric machine (10) is intended for bringing functional elements into operation in motor car. The said electric machine contains rotor with shaft (12) being installed in case-shaped part (16) so that it can rotate in antifriction bearing (22, 20). There is axial spring-controlled element (32) between antifriction bearing and rotor part, which is fixed to rotor shaft (12). The spring-controlled element is provided with inner (40) and outer (42) rings interconnected so that they can spring in axial direction. Outer ring (42) of axial spring-controlled element (32) is connected with rotor part (34).

A ustyuzhin electrcal unit / 2335838

Electrical unit incorporates a stator, a rotor and rotor bearings with magnets arranged on the rotor and stator. In compliance with this invention, every bearing of rotor is furnished with magnetic equalising device representing a pair of magnets fastened on the stator and the rotor shaft end with the like poles opposed, or a magnet fitted on the rotor shaft with the one-type pole facing the rotor bearing magnet fitted on the stator.

Method of reducing anti-torque resistance in starting at lower temperatures / 2327277

Invention relates to machine building and may be used in mining industry, metallurgy and processing industry. The proposed method allows facilitating starting a high-power motors in severe operating conditions, e.g. at lower temperatures. In compliance with this method, prior to starting the motor, a special AC magnet is connected to the motor shaft. The electromagnet windings carry an alternating current with different phases to create an alternating magnetic field acting on the motor shaft to make it vibrate. Also, because of the shaft solid design, induction currents get induced therein. The shaft vibration and induction currents in it make the grease start heating and penetrating into the gap between the thrust bearing and the shaft thus eliminating friction there between. This allows selecting a lower starting torque motor, hence a lower power one.

Axial electric motor / 2477559

Axial electric motor is designed to be stationary and open in a plot of land, the body consisting of the lower tier including a foundation slab with the lower support assembly and the upper tier including a star-shaped spherical framework attached to the foundation, the framework symmetrically composed of prop beams tensioned in the centre with an axial support and balancing assembly. Installed between the lower support assembly and the axial support and balancing assembly is a large diameter runner wheel on the end face whereof the short-circuited rotor proper is installed separated from the magnetic conductor of the stator, erected on the foundation slab on a raised platform, with an air gap. The runner wheel shaft is connected to the load via a clutch.

Electric motor / 2476977

Electric motor comprises a salient-pole stator with a control winding and a rotor with poles from permanent magnets arranged on ends and adjacent parts of side surfaces of a rotor magnetic conductor. Between adjacent magnets of the rotor pole arranged on the end and adjacent parts of side surfaces of the rotor magnetic conductor, additional magnets are introduced, polarity of which matches polarity of the rotor pole.

Magnetoelectric machine rotor system / 2475926

Magnetoelectric machine rotor system consists of two coaxial rotors. The external (outer) rotor is designed in the shape of a hollow cylinder of high-strength, non-magnetic and electrically non-conductive material with constant magnets uniformly fixed thereon; the magnets are magnetised in a radial direction and have alternating polarity. There are gaps between the external rotor magnets wherein the retaining elements are positioned made of a non-magnetic and electrically non-conductive material. The internal rotor is designed in the shape of a shaft of a magnetically soft material, toothed on the outside, the internal rotor teeth number equal to that of the external rotor permanent magnets. The internal rotor radial bearings are positioned outside the external rotor bearings. The external rotor axial bearing is represented by axial magnetic forces of interaction between the permanent magnets of the external rotor, the stator core and the shaft.

Magnetoelectric machine rotor system / 2475926

Electric machine / 2474945

Rotor of synchronous nonsalient-pole electric machine / 2474944

Rotor, in particular, of a turbogenerator comprises a winding made of coils (1) from current-conducting strands with turns covering a pole and laid into slots (2), at the same time, according to the invention, each coil (1) has concentric arrangement of turns placed in one layer in all slots (2), related to the pole division of the rotor. This invention is especially relevant for synchronous nonsalient-pole electric machines with air cooling.

Magnetoelectric generator / 2474032

In a magnetoelectric generator, the rotor of which comprises a disc (1) fixed on a shaft, and on the disc there is a ring-shaped row of permanent magnets (2) with alternating polarity, arranged as equidistant relative to each other, and the stator comprises two parallel plates (3,4), between which there are windings, besides, stator windings are arranged on U-shaped cores from electrotechnical steel, which are fixed on plates (3, 4) of the stator, width Bc of the end of the U-shaped core (6) makes a half of the width B of the permanent magnet (2) of the rotor, besides, ends of the U-shaped cores (6) of one plate (3) face the ends of the U-shaped cores (6) of the other plate (4) and are displaced relative to them by the distance equal to the half of the width of the permanent magnet (2) of the rotor, besides, the permanent magnets (2) of the rotor are arranged between opposite ends of U-shaped cores (6) of the stator.

Structures of coil from foil and methods of their winding for axial electrodynamic machines / 2471278

Stator for electrodynamic machines comprises a coil, providing for the possibility to generate ampere-turns ("AT") of a magnetic flow. A coil comprises a foil conductor, comprising a section of foil conductor displacement, configured as capable of displacing sections of the foil conductor and an element of an excitation pole having multiple zones. Sections of the foil conductor are arranged on the element of the excitation pole, which comprises the first and second zones. The first section of the foil conductor is arranged on the first zone, and the second one - on the second zone. A section of foil conductor displacement connects the first section of the foil conductor with the second section of the foil conductor. A version of a foil coil is proposed, with an excitation pole having a surface to oppositely install conical magnets, for instance.

Stabilised axial dc generator / 2470446

Invention is related to electric engineering, in particular, to electric DC machines. The proposed stabilised axial DC generator comprises a body, a pilot exciter, an exciter and the main generator, in which an inner magnetic conductor, a side magnetic conductor with one active end surface and a side magnetic conductor with two active end surfaces are arranged as axial. At the same time, according to this invention, into slots of the side axial magnetic conductor with two active end surfaces at the side of the inner axial magnetic conductor there is an additional winding of excitation exciter, and in the lower part of the generator body there is a voltage controller comprising a metre of voltage deviations, a preliminary amplifier, a unit of power amplification and a power part. The metre of voltage deviations is connected to the output voltage of the generator, and the additional winding of the excitation exciter is connected to a power part of the voltage controller.

Axial electric motor / 2477559

FIELD: electrical engineering.

SUBSTANCE: electric machine contains a sealed housing the cavity whereof accommodates a laminated stator core made of electrical steel; along the outer diameter, the laminated stator core relying on the electric machine housing; the stator core has open slots wherein winding coils are placed while the stator cylindrical cavity accommodates the electric machine rotor installed so that to enable rotation. According to this invention, the laminated stator core has radial inter-pack ventilation channels, the aerodynamically communicating housing longitudinal channels with inlet holes, communicating with environments via a filter; the conductors of each stator slot winding are fixed with a wedge and a spline insert contacting it, the said insert cross section designed so that to enable fixation of the spline insert back under the slot wedge while the projection cross section matches that of the slot; the spline insert back surface, along the whole of its length, has a longitudinal groove communicating with the stator core inter-pack ventilation channels; the spline inserts volumes projecting above the stator core cavity surface are joined to form a tubular sleeve, preferably - composed of segments, with a cylindrical-shaped inner surface formation; installed inside the housing cavity, coaxial to the stator core cavity, are cylindrical sleeves made of an insulation material such as glass-cloth-base laminate, the sleeves butt-ends attached to those of the stator utmost packs; additionally, the rotor contains an inducer with a cylindrical external surface consisting of poles, permanent magnets, non-magnetic wedges and a shaft; the rotor length exceeds that of the inducer; rigidly attached to the inducer butt-ends are end cylindrical sleeves made of a non-magnetic material, installed flush relative to the inducer external surface and placed inside the stator cylindrical sleeves cavities representing journals of radial gasodynamic petal bearings.

EFFECT: reduction of weight and overall dimensions, increase of life margin of electric machines, in particular - those operating at higher and high rotation rates, combined with ensuring the rotor bow minimisation, improvement of the stator winding cooling and extension of the rotor stability region due to deformation of the said radial gasodynamic petal bearings and prevention of the rotor jams at high circular velocities within the gasodynamic petal bearings positioning area.

3 cl, 2 dwg

The invention relates to the field of electrical engineering, particularly electrical engineering.

Known high-speed electromachine, comprising a housing which has a capability to supply in its cavity cooling gas, equipped with face shields, and means for supplying a cooling gas to the nodes placed in the cavity of the housing, the stator core with winding, a cylindrical cavity which is placed with a gap, the rotor containing an inductor and a bearing unit (see Balagurov, VA, Galaev FF Electric generators with permanent magnets. - M.: Energoatomizdat, 1988. - 280 S.).

The disadvantage of this device is the inability of a significant reduction in weight and size characteristics of the device by increasing the speed of rotation of the rotor, since the load bearing characteristics of the sites do not permit high speed rotation of the rotor when the reduction of its radial dimension.

The closest to this invention the device is electromachine, comprising a housing, a cavity which is placed laminated stator core, provided with open slots, which are placed in the coil winding, and in the cylindrical cavity of the stator rotatably placed the rotor, a bearing unit which is made with the possibility of gas-dynamic support (see U.S. Pat the t of the Russian Federation No. 2385523, IPC NC 5/16, 2010).

The disadvantage of this device is increased non-magnetic gap due to the presence of the sleeve sufficiently large thickness, which reduces the induction in the gap between the stator and the rotor and, consequently, affects the weight and dimensions of the machine.

The challenge which seeks the proposed solution is to improve mass and size parameters of electric machines by reducing the thickness of the sleeve down to zero through the use of specially organized gas bearing in the area of the non-magnetic gap between the stator core and the rotor and two radial petal gas-dynamic bearings in the area of the frontal parts of the stator winding, providing high long-term reliability of electrical machinery.

The technical result is achieved when the solution of the problem, reflected in reduction of weight and size and increase the service life of electric machines, including those running at higher and higher speeds. At the same time ensures a minimum deflection of the rotor, the cooling of the rotor and stator winding, expands the scope of rotor stability by damping the radial petal gas-dynamic bearings (LTP) and prevents jamming of the rotor at high peripheral speeds in the area of orcs.

Fasting is certain the task is solved by what electromachine, comprising a housing, a cavity which is placed laminated stator core, provided with open slots, which are placed in the coil winding, and in the cylindrical cavity of the stator rotatably placed the rotor, a bearing unit which is made with the possibility of gas-dynamic support, characterized in that the laminated stator core is provided with radial packet ventilation channels, aerodynamically reported longitudinal channel housing with receiving an air chamber communicated through the filter with the external environment, while the conductors of the winding of each slot of a stator fixed wedge and contact with him keyed insert, cross section which is configured to secure the backrest to the dowel insertion under the wedge groove, and the cross section of the projection corresponds to the cross section of the groove, and the surface of the backrest keyed insert along its entire length with longitudinal groove in communication with the packet ventilation channels of the stator core, with the amounts keyed inserts, protruding above the surface of the cavity of the stator core, combined in a tubular sleeve, preferably made up of segments, with the formation of the inner surface of the cylindrical shape, in addition, in the cavity of the housing coaxially with the cavity of the stator core installation is Lena cylindrical sleeve, made of insulating material such as fiberglass, sealed my ends with the extreme ends of the wound stator, while the cylindrical sleeve serve as the outer race radial petal gas-dynamic bearings, in addition, the rotor comprises an inductor with an external cylindrical surface, made of poles, permanent magnets, non-magnetic wedges, the shaft, the length of the rotor is greater than the length of the inductor, with the ends of the inductor rigidly fastened end of the cylindrical sleeve made of nonmagnetic material mounted flush with the outer surface of the inductor, which is the knuckle radar radial gas-dynamic bearings. In addition, the inductor is supplied by a bandage, the outer surface of which is attached a cylindrical shape corresponding to the diameter and the roughness of the outer surface of the cylindrical end sleeves, while the brace is made of high strength non-magnetic, heat-resistant material, preferably by winding carbon fibers, impregnated with a heat-resistant synthetic resins. In addition, the shaft is made hollow, with the possibility of connection with the shaft of the turbine and/or compressor.

Comparative analysis of the essential features of the proposed technical solutions and essential features is rotative and analogues demonstrates its compliance with the criterion of "novelty".

While the essential features of the characterizing part of the claims, solves the following functional tasks.

Signs of "laminated stator core is provided with radial packet ventilation channels, aerodynamically reported longitudinal channel housing with receiving an air chamber communicated through the filter with the external environment" provide efficient heat transfer from the windings and stator core.

Signs "...the conductors of the winding of each slot of a stator fixed wedge and contact with him keyed insert..." provide retention of the conductors of each winding groove in its cavity and the possibility of mounting the stator winding.

Signs indicating that the cross-section of the dowel insertion is made to lock the backrest keyed inserts under the wedge groove...", provide reliable retention of the dowel insertion in the groove, eliminating the possibility of arbitrary radial displacement in the direction of the surface of the rotor.

Signs indicating that the surface backless dowel insert along its entire length with longitudinal groove in communication with the packet ventilation channels of the stator core"to provide cooling of the coil.

Signs indicating that "the amounts keyed inserts, protruding above the surface of the cavity of the heart condition is the IR of the stator, United in a tubular sleeve, preferably made up of segments, with the formation of the inner surface of cylindrical form, provided by cylindricall" "working" cavity of the stator (which is directly posted by the rotor and, thereby, provide conditions for use of the gas layer in the gap between the inner surface of the tubular sleeve and the rotor for the organization of gas-dynamic bearings.

Signs indicating that "in the cavity of the housing coaxially with the cavity of the stator core is installed a cylindrical sleeve made of insulating material such as fiberglass, sealed my ends with the extreme ends of the wound stator, while the cylindrical sleeve serve as the outer race radial petal gas-dynamic bearings, ensure that the cavity of these bushings for mounting substrates and the petals of the radial gas-dynamic bearings.

Signs indicating that the rotor contains an inductor with an external cylindrical surface, provide the possibility of gas-dynamic support.

Signs indicating that the length of the shaft is greater than the length of the inductor and with the ends of the inductor rigidly fastened end of the cylindrical sleeve made of nonmagnetic material mounted flush with the external surface is rnostly inductor, ensure each other of the lengths of the outer ring and the trunnion radar radial gas-dynamic bearings, allow to increase the carrying capacity of the gas-dynamic bearings and extend the stability region of the rotor.

Signs of the second claim of the invention provide increased strength of the rotor and retain the ability to use its external surface as one of the supporting surfaces of the gas-dynamic bearings.

The signs of the third claim of the invention to reduce the mass and mass moments of inertia of the rotor and, thereby, extend the range of stability of a rotor in the form of "half rate of the vortex and increase the supply of static bearing capacity of gas-dynamic bearing with a slight decrease in strength of the rotor compared to the solid one-piece forged, in addition, this design prevents substantial deformation of the rotor in the radial direction from the centrifugal forces and thereby prevent jamming of the gas bearing.

Figure 1 shows a longitudinal section of the electrical machinery, figure 2 - cross section.

In the drawings is shown a housing 1, a stator core 2, the grooves 3, a coil 4, packet ventilation ducts 5, the longitudinal channels 6 of the housing 1 with an inlet holes 7, a filter 8, the wedges 9, keyed insert 10, the chute 11, cilindric the ski sleeve 12, 13 on the stator, the end panels 14 and 15, the sealing rings 16, 17, the substrate ORC 18, 19, 20 petals, 21 radar radial gas dynamic bearing (LPG), pole 22, the permanent magnets 23, the nonmagnetic wedges 24, shaft 25, an end of the cylindrical sleeve 26, 27 on the rotor, the brace 28, the gap 29, the thrust washer 30, the fan 31, the compression of the sheets 32, 33, the collar 34, anemones 35, split ring 36, remote ring 37, the cover 38, the holes 39, 40, annular channels 41 and the radial holes 42, the axial ORC 43, 44.

Electromachine comprises a sealed enclosure 1, the cavity of which is a laminated stator core 2 from electrical steel (see figure 1, figure 2). On the outer diameter of the laminated stator core 2 is based on the housing 1 of the electrical machinery. The stator core 2 is provided with open grooves 3, which are placed in the winding 4. Laminated stator core 2 is provided with radial packet ventilation channels 5, aerodynamically reported longitudinal channels 6 of the housing 1 with an inlet holes 7 provided through the filter 8 with the external environment.

The conductors of the coils 4 of each groove 3 of the stator 2 is fixed wedge 9 and in contact with him keyed insert 10 of insulating material, for example, of fiberglass, the cross section of which is made to lock the backrest keyed insert 10 under the wedge 9 of the groove 3. About jemi keyed inserts 10, protruding above the surface of the cavity of the stator core 2 can be merged into segments. Moreover, the inner surface of the segments keyed inserts 10 attached to a cylindrical shape, providing the opportunity to "work" segments as sleeve gas-dynamic bearing. Surface backless dowel insert 10 along its entire length with longitudinal groove 11, is in communication with the packet ventilation channels 5 of the stator core 2.

In the cavity of the housing 1, coaxially with the cavity of the stator core 2, is installed a cylindrical sleeve 12, 13, attached to the extreme ends of the packages of the stator core 2 directly under the compression of the sheets 32, 33. Contacts opposite ends of the cylindrical sleeves 12, 13 with end shields 14, 15 provided with sealing rings 16, 17 (e.g., rubber). In the cavity of the cylindrical sleeves 12, 13 are installed in the substrate 18, 19 and 20 petals, 21 radial petal gas-dynamic bearings.

In the cylindrical cavity segments keyed inserts 10 and radial ORC posted by the rotor for rotation.

The rotor comprises an inductor made of poles 22, the permanent magnets 23, a nonmagnetic wedges 24, shaft 25 whose length exceeds the length of the inductor. With the ends of the inductor rigidly fastened end of the cylindrical sleeve 26, 27, made of a nonmagnetic material, rasmusen the e flush with the outer surface of the inductor. To ensure the mechanical strength of the inductor is supplied by a brace 28, the outer surface of which is attached a cylindrical shape corresponding to the diameter and the roughness of the outer surface of the cylindrical end sleeves 26, 27, and the brace 28 is made of high strength non-magnetic, heat-resistant material, preferably made by winding carbon fibers, impregnated with a heat-resistant synthetic resins. The shaft 25 is hollow inside, with the possibility of connection with the shaft of the turbine and/or compressor.

Hydrodynamic bearing includes a bearing surface (made up of an inner cylindrical surfaces of the segments keyed inserts 10 and petals radial ORC 20, 21), trunnion (composed of the outer surface of the brace 28 of the rotor and the cylindrical sleeves 26 and 27), and the gap 29 between them.

The axial bearing Assembly spindle are: axial petal gas-dynamic bearings (TLP) 43, 44, the thrust washer 30 with the fan blades 31.

The stator is assembled in the following order. From the stamped electrical steel sheets collect packages of the stator core 2 and fasten them by welding through grooves on the outer cylindrical surface of the package. In case 1 electrical machinery insert cover sheet 33 is fully inserted in the collar 34. Then in case 1 is installed packages stator core 2C-verticali 35, push the sheet 32 and fix the collected set of packages and vetronic 35 using split ring 36. Later in the slots 3 of the stator core 2 install the slot insulation (not shown), stack winding 4 of the stator 2 and stuck her slot wedges 9. The winding 4 of the stator 2 is subjected to impregnation and drying. Inside the slots 3 of the stator 2 under the wedges 9 are tightly mounted on the adhesive segments keyed inserts 10 gas-dynamic bearing. Then grind the inner cylindrical surface segments keyed inserts 10 gas-dynamic bearing. Further, the inner cylindrical surface segments keyed inserts 10 gasdynamic bearing, cylindrical sleeves 12, 13 cover antifriction material, for example, WAP-3. A cylindrical sleeve 12, 13 is glued to the extreme ends of the packages of the stator core 2 directly under the compression of the sheets 32, 33. In the cavity formed by the inner surfaces of the cylindrical sleeves 12, 13, insert the substrate 18, 19 and 20 petals, 21 radar radial gas dynamic bearing (LPG). In the cavity of the stator 2 formed by the petals radial ORC 20, 21 and segments keyed inserts 10, insert the rotor. On the extreme ends of the cylindrical sleeves 12, 13 wear of the sealing rings 16, 17 and install the end panels 14, 15. In the end shield 15 set axially the ORC 43, remote ring 37, put the thrust washer 30, fix it by a nut, install TLP 44 and press the lid 38 of the received set of axial bearing Assembly.

Works electromachine as follows. When the rotor blades of the fan 31 generate a vacuum, the air through the filter 8, the holes 7 in the housing 1 of the electrical machinery runs along the longitudinal channels 6, radial packet ventilation channels 5 of the stator core 2, the grooves 11 keyed inserts 10 and exits through the openings 39, 40. When this air cools the core and the stator winding 2. The air entering the ends of the bearings in the gaps of the gas-dynamic bearings, through the annular channel 41 and the radial holes 42 in the segments keyed inserts 10 enters the chute 11 and goes out together with the cooling air.

1. Electromachine, comprising a housing, a cavity which is placed laminated stator core, provided with open slots, which are placed in the coil winding, and in the cylindrical cavity of the stator rotatably placed the rotor, a bearing unit which is made with the possibility of gas-dynamic support, characterized in that the laminated stator core is provided with radial packet ventilation channels, aerodynamically reported longitudinal channels of the body from receiving susnow camera, communicated through the filter with the external environment, while the conductors of the winding of each slot of a stator fixed wedge and contact with him dowel insertion, the cross section of which is made to lock the backrest keyed inserts under the wedge groove, and the cross section of the projection corresponds to the cross section of the groove, and the surface of the backrest keyed insert along its entire length with longitudinal groove in communication with the packet ventilation channels of the stator core, with the amounts keyed inserts, protruding above the surface of the cavity of the stator core, combined in a tubular sleeve, preferably made of segments, with the formation of the inner surface of the cylindrical shape, in addition, the cavity of the housing coaxially with the cavity of the stator core is installed a cylindrical sleeve made of insulating material such as fiberglass, sealed my ends with the extreme ends of the wound stator, while the cylindrical sleeve serve as the outer race radial petal gas-dynamic bearings, in addition, the rotor comprises an inductor with an external cylindrical surface, made of poles, permanent magnets, non-magnetic wedges, the shaft, the length of the rotor is greater than the length of the inductor, with the ends of the inductor rigidly fastened end of cylindri the definition of the sleeve, made of non-magnetic material, mounted flush with the outer surface of the inductor and placed in the cavities of the cylindrical sleeves of the stator, which is the knuckle radar radial gas-dynamic bearings.

2. Electromachine according to claim 1, characterized in that the inductor is supplied by a bandage, the outer surface of which is attached a cylindrical shape corresponding to the diameter and the roughness of the outer surface of the cylindrical end sleeves, while the brace is made of high strength non-magnetic, heat-resistant material, preferably by winding carbon fibers, impregnated with a heat-resistant synthetic resins.

3. Electromachine according to claim 1, characterized in that the shaft is made hollow, with the possibility of connection with the shaft of the turbine and/or compressor.