Electric machine

IPC classes for russian patent Electric machine (RU 2489788):

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

H02K21/12 - with stationary armature and rotating magnet

H02K19 - Synchronous motors or generators (having permanent magnet H02K0021000000)

Another patents in same IPC classes:

Submersible water-filled synchronous generator of vertical design / 2483417

Proposed submersible water-filled synchronous generator of vertical design comprises a basic shield, where a circular flat magnetic conductor is fixed, wound from electric steel, with a winding, a rotor disc with permanent magnets, a bearing shield arranged as cantilevered relative to the basic shield and comprising bearings of the rotor shaft. At the same time, according to this invention, the generator is equipped with a thrust sliding bearing, which has a journal in the form of a disc arranged on the rotor shaft, and a step-bearing in the form of a thrust sleeve, which covers the bearing shield at the side opposite to the basic shield, and is fixed with the help of bolts. The entire inner cavity of the generator is filled with water, and the generator with a hydraulic turbine arranged above it is submerged under the water level and is retained in this position with the help of floats, and is kept away from displacement by a retaining device.

Machine with retaining bearing with antifriction layer from liquid metal / 2483414

Machine has main housing (2), a turning element and at least one bearing device. The latter has a working bearing and retaining bearing (8) matching with the working bearing. Bearing (8) has race (9) of bearing of main housing (2) and race (10) of bearing of the turning element, which is located so that it can be turned relative to race (9) of the bearing of main housing (2). When the machine is in normal operating conditions, the turning element is installed durably in a non-contact manner with possibility of being turned relative to housing (2) above the working bearing so that race (10) relative to race (9) performs no turning movement. When the machine is in specific operating conditions, in which the turning element is not installed durably in a non-contact manner with possibility of being turned relative to housing (2) above the working bearing, the turning element brings race (10) into rotation relative to race (9) so that turning element (4) is installed above bearing (8) at least for a short period of time in a contact manner with possibility of being turned. Antifriction layer (11) made as liquid metal is located between race (9) and race (10).

Electric spindle / 2479095

Electric spindle comprises a body, in the cavity of which there is a laminated stator core, equipped with semi-closed slots, in which there are winding coils placed, besides, in the cylindrical cavity of the stator there is a rotor installed as capable of rotation, and its bearing unit is arranged as capable of gas-dynamic support, at the same time the electric spindle is equipped with a clamp for fixation of a working tool. At the same time, according to this invention, conductors of the winding of each stator slot are fixed with a wedge and a key insert contacting with it from insulating material, the cross section of which is made as capable of fixation of the key insert back under the slot wedge, and the ledge section complies with the slot splint section, besides, the profile of the key insert ledge surface corresponds to the surface of the cylindrical cavity of the stator core, the surface of the key insert back along its entire length is equipped with a longitudinal chute, which is open into an inner cavity of the spindle body arranged as capable of supplying air into it, in the cavity of the electric spindle body there are cylindrical bushings placed, the diameter of the cavity of which is equal to the diameter of the cylindrical cavity of the stator core, and between the ends of the stator core and the ends of cylindrical bushings facing them there are support rings installed, the cavity of which exceeds the diameter of the cylindrical cavity of the stator core, equipped with a collar that covers a part of the outer surface of bushings, the specified thrust rings are made of non-magnet material and are fixed with the stator core, and the 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, the end shield and collars of thrust rings are equipped with sealing rings arranged as capable of elastic deformation radially and along the longitudinal axis of the stator core. The rotor is made with inner cavities, for this purpose it comprises coaxial hollow shaft and shell, which are rigidly connected to each other, at least by three links equidistant from each other and made in the form of plates of identical thickness, being aligned radially to the longitudinal axis of the rotor, the ends of the rotor are rigidly fixed to the end covers, for instance, by vacuum-diffusion welding, besides, one of end covers of the rotor is arranged as thickened and is equipped with a clamp for fixation of a working tool.

Electric machine / 2477916

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.

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.

Generator / 2488211

In the suggested generator containing permanent magnets at rotor, fan and electronic module according to the invention in the area of radial surfaces of the stator end windings there is a centrifugal radial fan made in form of plates at the rotor, at that axes of magnets at the rotor are located at the angle towards the rotor axis and electronic module is located in space between the stator winding and rotor shaft.

Permanent magnet motor / 2484573

Proposed permanent magnet motor consists of n equal modules, each of which includes a housing, a stator with phase windings, a rotor with constant magnets, which are magnetised in radial direction. Similar phase windings of adjacent modules are connected in series, housings and rotors of modules are connected to each other mechanically, and each module includes circular orientation elements of the stator with phase windings and rotors. At that, according to this invention, in each rotor, one half of magnets is offset relative to the other half in a circumfenertial direction by the half of the tooth division of stator t_zs, and in adjacent modules, similar magnets of rotors are offset in a circumferential direction through value t_zs/(2n).

Reduction magnetoelectric machine with pole gear-type inductor / 2478250

Invention refers to design of contactless magnetoelectric machines with electromagnetic reduction, and can be used in direct drives, in automation systems, in mechanisms with high moments on the shaft and low rotation frequencies of the shaft, as well as high-frequency electric generators and synchronous frequency converters. The proposed reduction magnetoelectric machine with pole gear-type inductor includes stator, the armature core of which is charged and has salient poles, on inner surface of which elementary teeth are made, coil m-phase armature winding, each coil of which is arranged on the corresponding salient pole of the armature, one on each pole, and rotor containing an inductor with toothed poles with equal number of elementary teeth on each pole, which are symmetrically distributed along cylindrical surface; constant magnets magnetised in tangential direction are located between toothed poles of the inductor. When performing certain relations between the number of salient poles of the armature, number of elementary teeth on salient pole of the armature, number of salient armature poles in the phase, total number of armature teeth, number of toothed poles of the inductor, total number of inductor teeth, number of elementary teeth on toothed pole of the inductor and number of phases of m-phase armature winding of reduction magnetoelectric machine with pole toothed inductor, the method is implemented.

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.

Electric machine / 2474945

Direct rotation generator / 2468493

Invention describes direct rotation generator that includes holder of iron cores and rotating shaft arranged on holder of iron cores. The first and the second rotating discs are located on two corresponding ends of rotating shaft. The first iron core is located on holder of iron cores, and the first winding is located at the periphery of holder of iron cores. The first sealing plate is located on the first rotating disc; the first magnet is located on the first rotating disc or on the first sealing plate, and surface of the first magnet and surface of the first sealing plate share one surface. The fourth magnet is located on the second rotating disc. The first magnet and the fourth magnet correspond to two ends of the first iron core, and poles of the first and the fourth magnets, which face each other, are opposite. One end of the first iron core includes liquid tank that is filled with magnetic liquid; at that, end of the first iron core, which is filled with magnetic liquid, contacts the first sealing plate. The main magnetic flux of direct rotation generator and magnetic flux created with induced current are horizontal and parallel to iron core, which considerably reduces the impact of resistance on rotation of iron core and magnets.

Method for control of induction frequency-controlled electric drive with short-circuited rotor and tracking system for its realisation / 2458447

In the method to control a frequency-controlled induction electric drive with a short-circuited rotor there is a setter used arranged as a relay controller, from which a signal of optimum accuracy arrives to an input of frequency converter speed control. A tracking system comprises a frequency converter implementing vector control, an induction motor with a short-circuited rotor. The setter comprises a sensor of phase currents, a sensor of instantaneous speed signal value, a sensor of phase voltages, a converter of current phase number, a vector-analyser, a converter of voltage phase number, rotators of current and voltage, a unit of parametric coefficients, a unit of switching function coefficients, a unit of summators, a unit of multiplication, a summator, a unit of setting signals, a unit to produce a setting signal for rotor flux linkage and an appropriate coefficient of PI-controller, a unit to produce a setting signal for rotor flux linkage and an appropriate PI-controller coefficient, a relay with high switching frequency, a scaling unit, a multiplier, a selector and a switch connected as specified in application materials.

Electric motor / 2454774

Electric motor (1) consists of the first structure (4) that includes some magnetic poles formed by a certain sum of magnetic poles (4a) organised in certain direction and arranged in such a way that every two neighbouring magnetic poles (4a) have polarity that differ from one another, the second structure (3) that includes some armatures located opposite to the said magnetic poles for generating movable magnetic fields moving in certain direction between the row of armature and row of magnetic poles under the influence of certain sum of armature magnetic poles generated in the armatures (3c - 3e) at electric power supply to them, and the third structure (5) that includes a row of elements from magnetic-soft material formed by certain sum of elements (5a) from magnetic-soft material organised in certain direction with a one gap in relation to the other and arranged in such a way that a row of elements from magnetic-soft material is located between a row of magnetic poles and a row of armatures, number of magnetic poles (4a) and number of elements (5a) from magnetic-soft material is determined by the ratio 1 : m : (1 + m)/2 (m ≠ 1.0).

Axial two-input contactless dynamo / 2450411

Axial two-input contactless dynamo includes body, permanent multipolar magnet of induction coil subexciter, lateral axial magnetic conductor with polyphase armature winding of subexciter, single-phase winding of subexcitor and auxiliary excitation winding of exciter which is connected to DC power supply source through contacts, inner axial magnetic conductor with polyphase armature winding of exciter and single-phase excitation winding of main generator, lateral axial magnetic conductor with polyphase armature winding of main generator, shaft fixed in bearing assemblies and rigidly bound with permanent multipolar magnet of induction coil subexciter and inner axial magnetic conductor by means of respective discs. Single-phase excitation winding of exciter is connected to polyphase armature winding of subexciter through polyphase double-wave rectifier. Single-phase excitation winding of main generator is connected to polyphase armature winding of exciter through polyphase double-wave rectifier.

Synchronous inductor generator / 2488934

Synchronous inductive generator contains radial spoke-shaped rotor elements and a ferromagnetic base with stator elements including excitation sources, coils and magnetic conduits. According to the invention, the stator elements are designed in the form of two modules mounted on the ferromagnetic base, the base proper oriented parallel to the spoke-shaped rotor element. The proposed synchronous inductive generator needs no specially manufactured rotor element.

FIELD: electricity.

SUBSTANCE: electric machine has a hermetically sealed housing, inside of which there is an interleaved stator core which rests on the housing of the electric machine by the external diameter. The stator core is provided with open grooves which accommodate spools. The spools of each stator groove are fixed by a wedge and a splined insert in contact with it, the cross-section of which can fix the back of the splined insert under the wedge of the groove. The surface of the back of the splined insert on its entire length is provided with a longitudinal channel which opens inside the housing of the electric machine, which is configured to feed compressed gas therein. The splined insert has radial holes, wherein the volumes of the splined inserts which protrude over the surface of the cavity of the stator core are merged into a tubular bushing, preferably composed of segments with formation of an inner surface of a cylindrical shape. Inside the housing, there are cylinder bushings, the cavity diameter of which is equal to the diameter of the tubular bushing. Between the ends of the stator core and the ends of the cylinder bushings facing them, there are stopper rings, the cavity of which is greater than the diameter of the cylindrical cavity of the stator core, provided with a shoulder which encircles part of the outer surface of the cylinder bushing. The stopper rings are made from nonmagnetic material and are fastened with the stator core. The cylinder bushings are mounted with possibility of radial displacement relative the longitudinal axis of the cylindrical cavity of the stator core, for which contacts of the bushings with the housing, an end shield and stopper rings are provided with seal rings, which can be elastically deformed radially and along the longitudinal axis of the stator core. The rotor has an inductor with a cylindrical outer surface, made from poles consisting of permanent magnets, nonmagnetic wedges and a shaft, the length of which exceeds that of the inductor. The ends of the inductor are rigidly fastened to end cylinder bushings made from nonmagnetic material, placed flush with the outer surface of the inductor, which is provided with a band, the outer surface of which has a cylindrical shape which corresponds on the diameter and roughness to the outer surface of the end cylinder bushings, wherein a gas bearing is formed by the gap between the inner cylindrical surfaces of segments of the splined inserts, cylinder bushings and the outer surface of end cylindrical inserts and the rotor band; furthermore, the axial bearing assembly of the electric machine has axial lobed gas bearings and a bearing disc.

EFFECT: reduced weight and size and longer service life of electric machines, including electric machines operating at high rotary speeds, while ensuring minimal rotor bowing, better cooling of the rotor and stator coil.

3 cl, 2 dwg

The invention relates to the field of electrical engineering, in particular to electrical engineering and can be used, for example, electric generators with a high rotational speed.

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. Because 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, configured to supply compressed air in the cavity of which is a laminated stator core, provided with open slots, which are placed in the coil winding, and a cylindrical cavity with atora rotatably placed the rotor, bearing unit which is designed as a bearing for gas lubrication (see RF patent №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 technical solution is the improvement of mass-dimensional indicators of electrical machinery by reducing the thickness of the sleeve down to zero through the use of specially organized gas bearing in the area of the frontal parts of the stator winding and the area of the non-magnetic gap between the stator core and the rotor, 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.

The problem is solved in that the electromachine, comprising a housing, configured to supply compressed air in the cavity of which is a laminated stator core, provided with the first open grooves, which are placed in the coil winding, and in the cylindrical cavity of the stator rotatably placed the rotor, a bearing unit which is designed as a bearing for gas lubrication, characterized in that the coil 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 surface of the backrest keyed insert along its entire length with longitudinal groove open to the internal cavity of the housing of the electrical machinery, made with the ability to supply in her compressed gas, and keyed in the inset radial holes, 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 body has a cylindrical sleeve, the diameter of the cavity of which is equal to the diameter of the tubular sleeve between the ends of the stator core and addressed to them the ends of the cylindrical bushings posted by retaining ring, the cavity of which exceeds the diameter of the cylindrical cavity of the stator core, provided with a flange covering portion of the external cylindrical surface in ulki, moreover, the thrust ring is made of non-magnetic material and fixed to the stator core, in addition, cylindrical bushings installed with the possibility of radial displacement relative to the longitudinal axis of the cylindrical cavity of the stator core, which contacts the collet housing, a face shield and thrust rings provided with sealing rings made with the possibility of the elastic deformation of radially and along the longitudinal axis of the stator core, in addition, the rotor comprises an inductor, with the outer cylindrical surface made of poles, permanent magnets, non-magnetic wedges, shaft whose length exceeds the length of the inductor, with the ends of the inductor rigidly fastened end of the cylindrical sleeve, made of non-magnetic material, is placed flush with the outer surface of the inductor and the inductor is provided with a brace, 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 gas-static bearing gap formed between the inner cylindrical surfaces of the segments keyed inserts, cylindrical sleeves and the outer surface of the cylindrical end of the sleeves and the band of the rotor, in addition to the axial bearing unit of electroma the ins contains an axial petal gas-dynamic bearings and thrust washer. This bandage is made of high strength non-magnetic, heat-resistant material is made, preferably, the winding of carbon fibers impregnated with a heat-resistant synthetic resins. Additionally, 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 of the prototype 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 "...the coil 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 pins in the slot, 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 open into the internal cavity of building the sa electrical machinery, made with the ability to supply in her compressed gas, and keyed in the inset radial holes"allow the compressed gas in the gap between segments of gas-static bearing and rotor for the organization of the gas bearing.

Signs indicating that "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 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-static bearing.

Signs indicating that "in the cavity of the body has a cylindrical sleeve, the diameter of the cavity of which is equal to the diameter of the tubular sleeve", ensure that the surface of the inner cavity of the cylindrical bushings to increase the supporting surface of the gas bearing to increase its load carrying capacity.

Signs indicating that "between the end faces of the stator core and addressed to them the ends of the cylindrical bushings posted by retaining ring, the cavity of which is s greater than the diameter of the inner cylindrical cavity of the stator core", ensure the formation of a groove for collecting air from the working gap of the bearing.

Signs indicating that the thrust ring is provided "flange covering portion of the outer surface of the cylindrical sleeve, and the thrust ring is made of non-magnetic material and bonded to a core of the stator to provide a reliable longitudinal and radial suspension" end of the cylindrical bushing, and the use of elastic sealing rings provide germeticheskij this juncture, this prevents the destruction of the sealing rings.

Signs indicating that "cylindrical bushings installed with the possibility of radial displacement relative to the longitudinal axis of the cylindrical cavity of the stator core, which contacts the collet housing, a face shield and thrust rings provided with sealing rings made with the possibility of the elastic deformation of radially and along the longitudinal axis of the core, increase rotor stability by damping rubber o rings.

Signs indicating that the rotor comprises an inductor, with the outer cylindrical surface, provide the possibility of gas-static maintenance.

Signs indicating that the length of the shaft is greater than the length of the inductor" and "from the end and the inductor rigidly fastened end of the cylindrical sleeve, made of non-magnetic material, is placed flush with the outer surface of the inductor"meet each other of the lengths of the outer and inner cylindrical bearing surfaces, used for the organization of gas-static maintenance.

Signs "...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..." increase the strength of the rotor and retain the ability to use its external surface as one of the supporting surfaces of the gas-dynamic bearings.

Signs "...gas-static bearing gap formed between the inner cylindrical surfaces of the segments keyed inserts, cylindrical sleeves and the outer end surface of the cylindrical sleeve and bandage rotor..." characterize the implementation of gas-static bearing.

Signs indicating that the "axial bearing unit electrical machinery contains axial petal gas-dynamic bearings and thrust washer" characterize the axial bearing unit.

Signs of the second claim is considered a possible production version of the bandage.

The signs of the third claim to reduce weight the s and mass moments of inertia of the rotor and, thus, widen 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-static 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 2, the grooves 3, the coil winding 4, the wedges 5, keyway insert 6, the radial holes 7, the chute 8, the cylindrical sleeve 9, 10, retainer rings 11 and 12, the flange 13, the end shields 14, 15, the sealing rings 16, 17, 18 and 19, the permanent magnets 20, the pole 21, the nonmagnetic wedges 22, shaft 23, an end of the cylindrical sleeve 24, 25, band 26, the gap 27, petal gas-dynamic bearings (LGB) 28, 29, thrust washer 30, push the sheets 31 and 34, the collar 32, verticali 33, split ring 35, the distance ring 36, the cover 37, the inlet 38, the axial channels 39, 42 and 43, packet ventilation ducts 40, the annular channel 41.

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 heart is CNIC stator 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 coil winding 4.

The conductors of the coils 4 of each groove 3 of the stator 2 is fixed by the wedge 5 and in contact with the dowel inserts 6 made of insulating material, for example, of fiberglass, the cross section of which is made to lock the backrest keyed insert 6 in the cavity of the groove 3. In keyed inserts 6 are radial (feed) holes 7. The volume of the dowel inserts 6, protruding above the surface of the cavity of the stator core 2, the joint in the tubular sleeve, preferably made up of segments, with the formation of the inner surface of the cylindrical shape. Segments keyed inserts 6 are sleeve gas-static bearing. Surface backless dowel insert 6 throughout its length provided with a longitudinal groove 8 open into the internal cavity of the housing 1 of the electrical machinery, made with the ability to supply in her compressed gas. In the cavity of the housing 1 is placed a cylindrical sleeve 9, 10, the diameter of the cavity of which is equal to the diameter of the tubular sleeve, at the same time, between the end faces of the stator core 2 and addressed to them the ends of the cylindrical sleeves 9, 10 are placed retainer rings 11 and 12, the cavity of which exceeds the diameter of the inner cylindrical cavity of the stator core 2, provided with a flange and 13, covering part of the outer surface of the cylindrical bushings 9 and 10. Retainer rings 11, 12 are made of non-magnetic material and fixed to the stator core 2. This cylindrical sleeve 9 and 10 is installed with the possibility of radial displacement relative to the longitudinal axis of the cylindrical cavity of the stator core 2, which contacts the cylindrical bushings 9 and 10 of the housing 1, the end panels 14 and 15 and the thrust rings 11, 12 are equipped with sealing rings 16, 17, 18 and 19, made with the possibility of the elastic deformation of radially and lengthwise relative to the longitudinal axis of the stator core 2 (for example, rubber). In the cylindrical cavity segments keyed inserts 6 rotatably placed the rotor. The rotor comprises an inductor made in a known manner, with the outer cylindrical surface, comprising permanent magnets 20 are placed in the slots between the poles 21, covered with non-magnetic wedges 22, shaft 23 is rigidly connected with the poles 21, the length of which exceeds the length of the inductor. With the ends of the inductor rigidly fastened end of the cylindrical sleeves 24, 25 are made of a nonmagnetic material, is placed flush with the outer surface of the inductor. To ensure the mechanical strength of the inductor is supplied by a brace 26, the outer surface of which is attached to cylindrical form, relevant to the respective diameter and the roughness of the outer surface end of the cylindrical collet 24, 25, the band 26 is made of high strength non-magnetic, heat-resistant material, preferably by winding carbon fibers, impregnated with a heat-resistant synthetic resins. The shaft 23 is made hollow, with the possibility of connection with the shaft of the turbine and/or compressor.

Gas-static bearings comprise inner cylindrical surface segments keyed inserts 6, cylindrical bushings 9, 10, the outer end surface of the cylindrical sleeves 24, 25 and brace 26 of the rotor and the gap 27 between them.

The axial bearing Assembly spindle are: axial petal gas-dynamic bearings (LGB) 28, 29, the thrust washer 30.

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 31 is fully inserted in the collar 32. Then in case 1 is installed packages stator core 2 with verticali 33, push the sheet 34 and record the collected set of packages and vetronic using split rings 35 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 5. The winding 4 of the stator 2 is subjected to impregnation and drying. Inside the PA is s 3 of the stator 2 under the wedges 5 are tightly mounted on the adhesive segments keyed inserts 6 gas-static bearing. Then grind the inner cylindrical surface segments keyed inserts 6 gas-static bearing. Further, the inner cylindrical surface segments keyed inserts 6 gas-static bearing, cylindrical bushings 9 and 10 cover the antifriction material, for example, WAP-3. Then to extreme packages stator core 2 attach the retainer rings 11, 12. Under retainer rings 11, 12 against the extreme packages stator core 2 is inserted a cylindrical sleeve 9, 10 worn on their sealing rings 16, 17, 18, 17, and install the panels 14, 15. In the cavity of the stator 2 is formed by a cylindrical sleeves 9 and 10 and the segments keyed inserts 6 insert the rotor. In the end shield 14 set LGB 28, the distance ring 36, put the thrust washer 30, fix it by a nut, install LGB 29 and press the cover 37 of the received set of axial bearing Assembly.

Works electromachine as follows. The air under pressure through the inlet opening 38 in the housing 1 of the electrical machinery passes through the axial channels 39, the radial packet ventilation channels 40 packages of the stator core 2, the grooves 8 keyed inserts 6 and enters the feed holes 7 segments keyed inserts 6 gas-static bearing and enters the gas lubricating gap 27 and extends into the annular channel 41 on the ends of apostatizes bearing. Further axial channels 42 between segments keyed inserts 6 gas-static bearing and axial channels 43 in the sleeve goes into the environment. The rotor floats on the gas lubricating layer. The electrical machinery is not different from the conventional electric machines.

1. Electromachine, comprising a housing, configured to supply compressed air in the cavity of which is a 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 designed as a bearing for gas lubrication, characterized in that the coil 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 surface of the backrest keyed insert along its entire length with longitudinal groove open to the internal cavity chassis electrical machinery, made with the ability to supply in her compressed gas, and keyed in the inset radial holes, 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 inner the second surface has a cylindrical shape, in addition, in the cavity of the body has a cylindrical sleeve, the diameter of the cavity of which is equal to the diameter of the tubular sleeve between the ends of the stator core and addressed to them the ends of the cylindrical bushings posted by retaining ring, the cavity of which exceeds the diameter of the cylindrical cavity of the stator core, provided with a flange covering portion of the outer surface of the cylindrical sleeve, and the thrust ring is made of non-magnetic material and fixed to the stator core, in addition, cylindrical bushings installed with the possibility of radial displacement relative to the longitudinal axis of the cylindrical cavity of the stator core, which contacts the collet housing, a face shield and thrust rings provided with sealing rings made with the possibility of the elastic deformation of radially and along the longitudinal axis of the stator core, in addition, the rotor comprises an inductor with an external cylindrical surface, made of poles, permanent magnets, non-magnetic wedges, shaft whose length exceeds the length of the inductor, with the ends of the inductor rigidly fastened end of the cylindrical sleeve made of nonmagnetic material, is placed flush with the outer surface of the inductor, and the inductor is provided with a brace, the outer surface of which is attached to the and of cylindrical form, corresponding to the diameter and the roughness of the outer surface of the cylindrical end sleeves, while gas-static bearing gap formed between the inner cylindrical surfaces of the segments keyed inserts, cylindrical sleeves and the outer surface of the cylindrical end of the sleeves and the band of the rotor, in addition, the axial bearing unit electrical machinery contains axial petal gas-dynamic bearings and thrust washer.

2. Electromachine according to claim 1, characterized in that the brace is made of high strength non-magnetic, heat-resistant material, made, preferably, the winding of 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.