EP3619796A1 - Elektrische medienspaltmaschine für einen verdichter und/oder eine turbine, turbolader und/oder turbine - Google Patents
Elektrische medienspaltmaschine für einen verdichter und/oder eine turbine, turbolader und/oder turbineInfo
- Publication number
- EP3619796A1 EP3619796A1 EP18721379.8A EP18721379A EP3619796A1 EP 3619796 A1 EP3619796 A1 EP 3619796A1 EP 18721379 A EP18721379 A EP 18721379A EP 3619796 A1 EP3619796 A1 EP 3619796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stator
- rotor
- splitting machine
- inner sleeve
- media
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 25
- 238000005457 optimization Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000004907 flux Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0646—Details of the stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- Electric media splitting machine for a compressor and / or a turbine, turbocharger and / or turbine
- the invention relates to an electric media splitting machine for a compressor and / or a turbine, in particular exhaust gas turbocharger compressor or
- Micro gas turbine compressor of an internal combustion engine with a rotatably mounted in a housing shaft on which a rotor is arranged rotationally fixed, with a housing-fixed stator, the at least one multi-phase
- Drive winding for generating a drive magnetic field and a plurality of radially inwardly projecting stator teeth, and having a means for optimizing the flow of a fluid flowing through the media splitting medium.
- the invention relates to a compressor and / or a turbine
- exhaust gas turbocharger in particular exhaust gas turbocharger, with a housing and with one in the
- Housing rotatably mounted shaft on which at least one compressor wheel is rotatably mounted, and with an electric media splitting machine having a rotatably mounted on the shaft rotor and a stator fixed to the housing, wherein the stator has a drive winding for generating a drive magnetic field.
- Exhaust gas turbocharger provided with an electric machine to drive the shaft of the exhaust gas turbocharger, on which a compressor wheel and a turbine wheel are arranged rotationally fixed.
- the otherwise delayed boost pressure buildup can be significantly accelerated.
- Media splitting machine has the advantage that the motor support can be integrated in a particularly space-saving manner in the turbocharger, because the sucked fresh air through a between rotor and stator of the
- the media splitting machine can be integrated space-saving in the flow path.
- the rotor and stator of the media splitting machine can be integrated space-saving in the flow path.
- the stator usually has an annular stator yoke and radially inwardly protruding from the stator yoke stator teeth, which in
- stator teeth Seen circumferentially spaced from each other evenly distributed.
- the stator teeth are usually wrapped by a multi-phase drive winding, wherein by energizing the phases of the
- the rotating drive magnetic field is generated, through which the rotatably mounted by the shaft rotor is driven with a predetermined torque.
- the rotor expediently has at least one
- the media splitting machine according to the invention with the features of claim 1 has the advantage that the flow behavior through the
- Stator cooling takes place and prevents the deposition of particles, in particular of magnetic or magnetizable particles on the rotor or at least substantially avoided.
- the stator-fixed device has a cover cap that covers at least the rotor on the front side and that is held in particular on the stator teeth.
- the arrangement of the cap upstream of the rotor or in the flow direction in front of the rotor ensures that the fluid does not hit a flat or the media flow perpendicularly opposed wall of the rotor, but is flowed past the rotor by the cap flow optimized.
- By arranging the cap on the stator teeth ensures that the cap is fixed to the housing, so that the
- Turbulence of the flow is avoided, so on the one hand the operation of the compressor optimized and on the other hand, the cooling of the stator is improved.
- adjoins the cap an inner sleeve which surrounds the rotor circumferentially completely and axially or in the flow direction at least partially.
- the conveying medium as seen in the flow direction, is prevented behind the covering cap from contacting the rotor directly, as a result of which contamination of the rotor is largely excluded.
- the inner sleeve By avoiding deposits on the rotor, it is ensured that no critical imbalance is generated. Due to the advantageous embodiment of the device with the inner sleeve, this is avoided in a simple manner.
- the inner sleeve preferably for the respective stator tooth
- the device has a coaxial with the inner sleeve arranged outer sleeve, so that between the inner sleeve and outer sleeve of the only flow path for the medium through the stator
- Inner sleeve and outer sleeve thus define the only media gap available for the medium, which is carried out through the stator and is interrupted in the circumferential direction only by the stator teeth, which, however, extend to or into the inner sleeve. Because the media gap now not by the stator and is interrupted in the circumferential direction only by the stator teeth, which, however, extend to or into the inner sleeve. Because the media gap now not by the
- the rotor or the stator winding itself is limited, but by the outer sleeve and the inner sleeve, a substantially annular flow path at the level of the stator teeth, between the
- Stator winding or drive winding and the Stator leopard include, is a flow-optimized surface for the leadership of the
- the cap is flow-optimized, in particular in the form of a half ovoid and in particular is arranged with its tip centric or eccentric to the axis of rotation of the rotor. This results in an advantageous flow control for in the flow path between the inner sleeve and
- the preferred shape of the cap as a half ovoid ensures that the media flow hardly or only slightly contacts the rotor itself, so that the probability of deposits of the particles on the rotor is reduced. At the same time the media flow is directed outwards in the direction of the stator, so that this is advantageously cooled.
- the cap is centric to
- Rotary axis of the rotor arranged so that the tip of the cap is at the height of the axis of rotation.
- the media splitting upstream pipe bend which the medium to be conveyed from an axis pivoted to the rotor axis for
- the inner sleeve has at least one, preferably a plurality of radially outwardly projecting retaining struts, which are formed in particular for the frontal attachment or attachment to each one of the stator teeth.
- the inner sleeve and thus the cap are thus aligned and held by the attached to the stator teeth holding struts.
- Cover cap on the stator teeth by the support struts of the inner sleeve thus ensures a simple and space-saving integration of the retaining cap in the media splitting machine.
- this is a simple housing-fixed connection of the cap realized.
- the retaining struts are preferably formed optimized flow and cover the respective stator tooth upstream at least partially.
- the holding struts in front of the stator teeth thus lie in the media gap and thus offer, independently of the shape of the stator teeth, even the possibility of a flow-optimized design for the media gap.
- Holding struts are in each case connected in one piece in particular at its end facing away from the inner sleeve with an outer sleeve coaxial with the inner sleeve. Between inner sleeve and outer sleeve is thus a
- annular media gap for the fluid to
- Inner sleeve and outer sleeve thus provide an advantageous flow channel for the pumped medium through the media-splitting machine.
- the cap, the inner sleeve, the retaining struts, the outer sleeve and the cap are integrally formed with each other.
- the aforementioned device is at least essentially formed by this mounting part.
- Mounting part is designed such that a simple mounting on the
- the mounting part is designed to be pushed axially onto the stator or onto the stator teeth of the stator.
- the mounting member is easy to attach to the stator teeth by the mounting part is pushed axially with the receiving recesses on the mounting teeth.
- the receiving recesses on insertion bevels to the arrangement and orientation of the mounting part to the media splitting machine to facilitate and ensure safe mounting.
- Attachment such as adhesive or the like is achieved. According to an alternative embodiment, it is preferably provided that the
- the stator is preferably composed of several stator parts.
- the stator is interrupted along the stator yoke in several places, so that in each case one
- Stator tooth is located on a single Statorjochabites so that the stator teeth can be inserted radially into a respective radial receiving recess until the Statorjochabitese abut each other in the circumferential direction and connected there, in particular welded. Subsequently, the unit of stator and device is no longer destructive solvable and allows easy handling of this unit.
- a plurality of coil holders for coils of the drive winding are formed integrally with the outer sleeve.
- the drive winding is advantageously formed by a plurality of manageable coils.
- the coil holders are designed so that the coils can be easily attached and mounted on this.
- the coils can be pushed radially onto the coil holders in order to be fastened to the mounting part.
- the mounting part is not only for flow optimization, but at the same time as a support for the drive winding, which then not directly to the stator, but on the
- the mounting part is preferably made of plastic, so that the mounting part simultaneously produces an electrical insulator between the different coils and the stator.
- the production of plastic is inexpensive and also allows a complicated shape of the mounting part.
- the coil holder are formed such that they have a radial opening through which protrude through the stator teeth of the stator.
- the breakthrough is preferably formed axially open edge, so that the Stator teeth can be inserted axially into the coil holder so that the coils can then be mounted on the coil holders.
- stator teeth are then connected to each other by a common stator yoke, wherein the stator teeth preferably with the
- Statorjoch permanently connected, in particular welded. According to an alternative embodiment, it is preferably provided that the
- Coil holders have only one radial opening, so that the stator teeth are inserted radially into the coil holder for mounting, then the coils are mounted on the respective coil holder and absch dirtyend the stator teeth are connected to the stator yoke as described above.
- a coil holder is provided for each stator tooth. This ensures that a coil of the winding can be arranged on each stator tooth.
- the coils can be formed separately from each other or even
- the coil holders are provided on radially outside of the outer ring, and the coils or the drive winding are outside the outer ring, so that the flow channel between the inner sleeve and outer sleeve is formed free of spools, so that the flowing through the conveyor channel conveying medium is not affected by the coil and optimally through inner ring, outer ring and retaining struts and cap is performed.
- Each coil holder preferably has a latching device for fastening a coil or a coil part of the drive winding.
- Detent device thus the coils or coil parts of the drive winding in a simple manner can be locked to the respective coil holder.
- the latching device acts radially, so that a simple targeting of the coils is prevented by the respective coil holder.
- the latching device cooperates in a form-fitting manner with the coil arranged on the respective coil holder.
- Detent device also releasably designed to remove if necessary, a coil or a coil part. Furthermore, it is preferably provided that the respective latching device has at least one laterally projecting locking lug of a coil holder, which elastically springs back upon radial displacement of a coil onto the respective coil holder. By the locking device is achieved that the respective coil can not solve by itself during operation of the media splitting machine of the respective coil holder. Rather, a form-fitting
- the locking lug elastically springs back, so that a simple installation is guaranteed.
- the locking lug preferably has an actuating bevel, which elastically pushes the latching nose back when the coil is pushed on, and a stop facing away from the actuating bevel, against which the coil can be pushed radially outwards without being able to overcome it.
- the detent To release or replace the coil, only the detent must be manually compressed in its release position
- the rotor is mounted on the shaft or by a threaded connection to a shaft end of the shaft on the shaft.
- the rotor can be in a simple
- Rotor shaft which has the mating thread, the end face of the shaft can be fastened. If the rotor is arranged directly on the shaft, there is the advantage of an axial space saving.
- the shaft or the rotor has an annular projection whose outer diameter is greater than the inner diameter of the inner sleeve, and up to which the inner sleeve can be pushed axially onto the shaft or the rotor.
- the annular projection thus forms an axial end for the inner sleeve, through which the rotor is completely enclosed by the mounting part or the inner sleeve and the cover cap. The axially on the
- Ring projection adjacent inner sleeve seals the rotor with a close tolerances air gap to the environment, so that a safe protection of the rotor, especially against dirt particles is guaranteed.
- At least one permanent magnet of the rotor protrudes axially downstream via the stator or the stator teeth.
- the rotor preferably has at least one permanent magnet, which ensures a particularly compact design. Alternatively, however, the rotor can do more than one
- the device is designed as a part of the stator which is inseparable from the stator.
- the device has the inner sleeve, the cap, the support struts, the
- the device forms the stator with or the stator means.
- turbocharger according to the invention with the features of claim 15 is characterized by the inventive design of the media splitting machine. This results in the already mentioned advantages. Further advantages and preferred features and combinations of features emerge in particular from the previously described and from the claims. In the following, the invention will be explained in more detail with reference to the drawing. 1 shows an exhaust gas turbocharger with a media splitting machine in a simplified longitudinal sectional view
- Figure 2 is a perspective view of
- Figure 5 is a longitudinal sectional view through the
- Figure 6 is a detail view of the media splitting machine.
- FIG. 1 shows in a simplified longitudinal sectional view a
- Exhaust gas turbocharger 1 which has a compressor 2 and a turbine 3.
- the compressor 2 has a compressor wheel 4, which is arranged rotatably on a shaft 5.
- the shaft 5 is itself rotatable in a housing 6 of the
- Exhaust gas turbocharger 1 stored.
- a turbine 7 of the turbine 3 is rotatably connected to the shaft 5.
- Compressor 4 compressed fresh air supplied and the internal combustion engine is supplied.
- the rotatable mounting of the shaft 5 in the housing 6 can be realized in different ways.
- the shaft 5 is rotatably supported by at least two bearings 8 and 9 in the housing 6.
- bearings 8 and 9 Preferably, as a bearing are 8.9 two
- Rolling element bearing available.
- one of the rolling element bearing is designed as Axialskysky Ratios.
- the bearing 8 is designed as a magnetic bearing, and the bearing 9, which serves as a thrust bearing, as WälzShoreslager.
- the compressor 2 regardless of the exhaust stream of
- Media splitting machine 10 has. This is presently integrated in the compressor 2, wherein a rotor 1 1 of the media splitting machine 10 rotatably disposed on the side remote from the turbine wheel 7 end of the shaft 5. A cooperating with the rotor 1 1 stator 12 is fixed to the housing coaxial with the rotor 1 1 in the leading to the compressor 4 flow channel 13 of the
- Exhaust gas turbocharger 1 is arranged.
- Figure 2 shows a simplified perspective view of
- stator 12 has an annular Statorjoch 14, of which a plurality of uniformly over the circumference of the stator 12
- Statorjochs 14 distributed stator teeth 15 protrude radially inwardly and point in the direction of the rotor 1 1 and the axis of rotation of the shaft 5.
- the stator teeth 15 end radially spaced from the rotor 12 so that an air gap remains between the stator teeth 15 and the rotor 12.
- the stator 12 is provided with an in particular multi-phase drive winding 16, as shown for example in FIG.
- the drive winding 16 may be formed of a winding wound over the stator or a radially plugged onto the stator teeth 15 winding consisting of a plurality of coils, wherein on each stator tooth at least one coil is pushed. This will be discussed again later.
- the media splitting machine 10 furthermore has a device 17, which is designed to control the flow behavior of the conveyed medium conveyed by the exhaust gas turbocharger 1, that is to say the fresh air, through the media splitting machine
- the device 17 has a cap 1 assigned to the rotor 11.
- the cap 18 is at
- the cap 18 has the shape of a half ovoid, wherein a tip of the cap 18 is preferably at the height of the axis of rotation of the shaft 5 and the rotor 1 1.
- the cap 18 is not centric, but eccentrically to the axis of rotation or axis of rotation of the shaft 8 and the rotor 1 1 arranged
- the cap 18 is at the remote from the tip axial end in an inner sleeve 19 whose inner diameter is larger than the rotor 1 1, so that it is accommodated in the inner sleeve 19, such as in FIG
- the inner sleeve 19 From the inner sleeve 19 go from a plurality of support struts 20, which extend radially outward, wherein corresponding to the stator teeth 15 each a support strut 20 is provided.
- the retaining struts 20 are corresponding to the
- each retaining strut 20 is upstream of a stator tooth 15.
- the holding struts 20 also have a flow-optimized profile to the
- FIG. 6 shows a simplified detail view of a stator tooth 15 and a stator tooth 15 associated holding web 20.
- the holding web 20 has a teardrop-shaped profile and is flush at its side surfaces in the stator tooth 15 and in the side surfaces of the stator tooth 15, so in the transition no turbulence arises.
- the respective holding web 20 with the associated stator tooth 15 a is provided that the respective holding web 20 with the associated stator tooth 15 a
- Drop shape or wing shape as shown in Figure 6, formed.
- Cover cap 18 on the stator teeth 15 is preferably provided that the
- Statorzähne 15 each have a recess 21 into which the holding struts 20 are each inserted with a corresponding to the recess 21 projection 22, as shown for example in Figure 6.
- a reverse training may be implemented, in which the stator teeth 15 are partially inserted into the respective holding web 20.
- the support struts 20 terminate radially outward on an outer ring 23, whose
- Outer diameter is smaller than that of the stator yoke 14, so that between outer ring 23 and stator yoke 14, the drive winding 16 can be arranged.
- the outer ring 23 is disposed coaxially with the inner ring 19 and extends as well as the inner ring axially through the media splitting machine 10 so that it projects axially from the stator teeth 15 on both sides, as shown in particular in Figure 2.
- FIGS. 3A and 3B show in each case a perspective rear view (FIG
- Outer ring 23 is formed.
- the inner ring 19, the retaining struts 20 and the outer ring 23 are advantageously formed integrally with each other and made of plastic. This results in the advantageous mounting part 24, which is easy to install in the media splitting machine 10.
- at least the inner sleeve 19 is slotted, so that they have a plurality of axial
- the inner sleeve 25 is axially attachable to the rotor and stator.
- the arrangement of the Axialaufsure 25 corresponds to the arrangement of the support struts 23, so that a correct alignment of the support struts 20 to the stator teeth 15, as shown in Figure 2, is possible.
- the outer sleeve 23 has according to a first embodiment of the axial recesses 25 corresponding recesses, so that the outer ring 23 can be pushed onto the stator teeth.
- stator teeth 15 are mounted radially.
- the outer sleeve 23 has a plurality of radial
- stator is divided into a plurality of stator segments, each stator segment having a stator yoke segment on which only one stator tooth 15 is arranged or formed.
- the stator teeth 15 are inserted radially into the radial openings 26 of the outer sleeve 23 until they reach the inner sleeve 19 or in there provided radial receiving recesses or breakthroughs protrude until the Statorjochsegmente abut each other in the circumferential direction and are connected together.
- the Statorjochsegmente be welded together.
- each aperture 26 is associated with a coil holder 27.
- the respective coil holder 27 projects radially outwards from the outer ring 23 and in each case has an oval-shaped contour with flattened surfaces
- a coil 28 of the drive winding 16 is radially slidable, as shown in Figures 3A and 3B or in Figures 4A and 4B.
- the coil holders 27 each have a latching device 29, which is formed by two elastically displaceable latching lugs, which are arranged or formed on the end remote from the outer ring 23 of the coil holders 27.
- the locking lugs 30 are in particular integrally formed with the coil holders 27, which are preferably also integrally formed with the outer ring 23 formed.
- the locking lugs 30 of a coil holder 27 are adapted to spring towards one another when a coil 28 on the coil holder 27 radially
- the advantageous mounting part 24 thus has inner sleeve 19, outer sleeve 23, retaining struts 20 and coil holder 27 and is preferably formed in one piece.
- the assembly is carried out such that first the coils 28 are attached to the coil holder 27 before the stator teeth 15 are guided through the respective opening 26 and connected to the stator yoke 14.
- FIGS. 4A and 4B respectively show the mounting part 24 with mounted stator 12 and several coils 28, in each case in a perspective rear view (FIG. 4A) and in a perspective top view (FIG. 4B).
- the Coils 28 are arranged evenly distributed over the circumference of the mounting part 24 to the coil brackets 27. Particularly preferred is at each
- Coil holder 27 each arranged at least one coil 28. According to the present embodiment of Figures 4A and 4B is off
- a coil holder 27 without coil 28 is provided.
- several coils 28 are distributed irregularly over the circumference of the mounting part 24 to the
- the stator teeth 15 are each formed from a base portion 31 and a flux guide 32 according to the present embodiment.
- the flux-guiding element 32 is narrower than the base part 31 and the rotor 1 1.
- the flux guide elements 32 end in the inner sleeve 19, so that the inner sleeve has on its inner side a flush or continuous cylindrical outer surface, as can be seen in particular in FIG. 4A.
- FIG. 5 shows the rotor 1 1 of the media splitting machine 10 in a simplified longitudinal sectional view.
- the rotor 1 1 has a permanent magnet 33, which rests in an axial receiving recess 34 of a rotor shaft 35.
- the receiving recess 34 may also be formed directly in the shaft 5.
- a jacket wall is formed, which is the
- Permanent magnet 33 circumferentially surrounds and thus forms a reinforcement, which the permanent magnet 33 before at high speeds
- the rotor shaft 35 is connected by a threaded connection 36 with the shaft 5 at its front end.
- the rotor shaft 35 at its end facing the shaft 5 a polygon contour on which a
- Key surface 37 forms, on which a tool key for applying the tightening torque during assembly of the rotor 1 1 on the shaft 5 can attack.
- the rotor shaft 35 Spaced to the key surface 37, the rotor shaft 35 also has an over the entire circumference extending annular projection 38 whose outer diameter is greater than the inner diameter of the inner sleeve 19.
- the mounting member 24 is pushed with the cap 18 and the inner sleeve 19 to close to the annular projection 38 on the rotor shaft 35.
- the permanent magnet 33 is securely protected in the interior against magnetic or magnetizable dirt particles.
- the advantageous embodiment of the media splitting machine 10 has the advantage that between inner sleeve 19 and outer sleeve 23 is an advantageous and
- flow-optimized flow channel 39 is formed for the medium to be conveyed or the charge air, which leads only through the stator 12 and through the 12 lying between the stator teeth of the stator 12 spaces of the stator, wherein the medium through the outer sleeve
- stator teeth 15 protrude into the inner sleeve 19, the medium does not enter into a gap between the rotor 1 1 and stator 12. Due to the advantageous embodiment of the cap 18 ensures that the inflowing fluid is directed substantially past the rotor and more in Direction of the stator 12 is operated so that it undergoes an advantageous cooling and the deposition of dirt particles on the rotor is avoided. Because the stator teeth 15 nevertheless end up close to the rotor as a whole and there is only a small air gap between the stator teeth 15 and the rotor 11, the electromagnetic property is improved by the lower magnetic resistance.
- Fluxes 23 corresponds, according to the further embodiment, a different number may be provided. In particular, more holding struts may be present as flux guides.
- at least the outer sleeve 23 is conical to
- the retaining struts 20 represent the upstream part of the airfoil up to the maximum profile width.
- the flux guiding pieces 23 geometrically represent the shape of the outflowing profile.
- the upstream part of the airfoil profile is formed by the retaining struts 20, reduces the effort in the shaping of the flux guides 32, thereby reducing manufacturing costs.
- the average cross section of the flux guides 32 which is available in the magnetic flux in this region, increases.
- the permanent magnet 33 is arranged and formed so that it projects axially beyond the stator 12 on the side facing away from the cap 18 side. Due to the resulting
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017207532.5A DE102017207532A1 (de) | 2017-05-04 | 2017-05-04 | Elektrische Medienspaltmaschine für einen Verdichter und/oder eine Turbine, Turbolader und/oder Turbine |
PCT/EP2018/061123 WO2018202668A1 (de) | 2017-05-04 | 2018-05-02 | Elektrische medienspaltmaschine für einen verdichter und/oder eine turbine, turbolader und/oder turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3619796A1 true EP3619796A1 (de) | 2020-03-11 |
Family
ID=62091902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18721379.8A Pending EP3619796A1 (de) | 2017-05-04 | 2018-05-02 | Elektrische medienspaltmaschine für einen verdichter und/oder eine turbine, turbolader und/oder turbine |
Country Status (5)
Country | Link |
---|---|
US (1) | US11451114B2 (de) |
EP (1) | EP3619796A1 (de) |
CN (1) | CN110754029B (de) |
DE (1) | DE102017207532A1 (de) |
WO (1) | WO2018202668A1 (de) |
Families Citing this family (26)
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DE102017216858A1 (de) * | 2017-09-22 | 2019-03-28 | BMTS Technology GmbH & Co. KG | Elektrische Medienspaltmaschine, Verdichter und/oder Turbine |
FR3078205B1 (fr) * | 2018-02-16 | 2020-02-28 | IFP Energies Nouvelles | Machine electrique a grille statorique comprenant des appendices aerodynamiques |
DE102018204623A1 (de) | 2018-03-27 | 2019-10-02 | Robert Bosch Gmbh | Elektrische Medienstrommaschine für einen Verdichter und/oder eine Turbine |
DE102018206156A1 (de) | 2018-04-20 | 2019-10-24 | Robert Bosch Gmbh | Elektrische Medienstrommaschine, Verdichter und/oder Turbine |
DE102018209708A1 (de) | 2018-06-15 | 2019-12-19 | Robert Bosch Gmbh | Verfahren zum Betreiben einer elektrischen Medienstrommaschine, Steuergerät, Medienstrommaschine, Verdichter und/oder Turbine |
DE102018209705A1 (de) | 2018-06-15 | 2019-12-19 | Robert Bosch Gmbh | Verfahren zum Betreiben einer elektrischen Maschine, elektrische Maschine, Antriebseinrichtung und Verdichter und/oder Turbine |
CN109707643B (zh) * | 2018-11-27 | 2021-06-18 | 中国科学院工程热物理研究所 | 具有高速发电功能的轴流压气机结构及燃气涡轮发动机 |
DE102018221134A1 (de) | 2018-12-06 | 2020-06-10 | Robert Bosch Gmbh | Rotor für eine elektrische Antriebsmaschine zum Antrieb eines Verdichters, einer Turbine oder einer Laderwelle eines Abgasturboladers, elektrische Antriebsmaschine mit einem solchen Rotor und Verfahren zur Herstellung eines derartigen Rotors |
DE102018221138A1 (de) | 2018-12-06 | 2020-06-10 | Robert Bosch Gmbh | Rotor für eine elektrische Antriebsmaschine zum Antrieb eines Verdichters, einer Turbine oder einer Laderwelle eines Abgasturboladers und Abgasturbolader mit einer elektrischen Antriebsmaschine und einem solchen Rotor |
DE102018221890A1 (de) * | 2018-12-17 | 2020-06-18 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Stators, insbesondere für eine elektrische Antriebsmaschine |
DE102018222065A1 (de) | 2018-12-18 | 2020-06-18 | Robert Bosch Gmbh | Kompressorrad zur Kompression eines fluiden Mediums |
FR3092448B1 (fr) * | 2019-02-04 | 2021-01-15 | Ifp Energies Now | Dispositif de compression d’un fluide entraîné par une machine électrique avec rotor équipé d’un aimant cylindrique plein |
KR102201386B1 (ko) * | 2019-02-20 | 2021-01-12 | 엘지전자 주식회사 | 팬 모터 |
US10876424B2 (en) | 2019-04-14 | 2020-12-29 | Hamilton Sunstrand Corporation | Energy recovery modules, generator arrangements, and methods of recovering energy in generator arrangements |
FR3101208B1 (fr) * | 2019-09-23 | 2023-06-30 | Ifp Energies Now | Rotor à aimantation transitoire hybride |
DE102019215342A1 (de) | 2019-10-07 | 2021-04-08 | Robert Bosch Gmbh | Elektrische Antriebsmaschine für einen Verdichter und/oder eine Turbine, Turbolader und/oder Turbine |
EP3822467B1 (de) * | 2019-11-12 | 2024-05-22 | G+L Innotec GmbH | Medienspaltmotor, insbesondere für einen turbolader |
DE102020201646A1 (de) | 2020-02-11 | 2021-08-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | Elektrische Maschine |
DE102020201643A1 (de) | 2020-02-11 | 2021-08-12 | Robert Bosch Gesellschaft mit beschränkter Haftung | Elektrische Maschine für ein Verdichter und/oder Turbine |
DE102020203464A1 (de) | 2020-03-18 | 2021-09-23 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren und Vorrichtung zum Betreiben einer Antriebsvorrichtung, Antriebsvorrichtung |
WO2021192162A1 (ja) | 2020-03-26 | 2021-09-30 | 三菱重工エンジン&ターボチャージャ株式会社 | 回転機械 |
CN111828375A (zh) * | 2020-06-30 | 2020-10-27 | 中国航发南方工业有限公司 | 分流离心叶轮及具有其的航空发动机 |
CN111963304A (zh) * | 2020-08-07 | 2020-11-20 | 中国北方发动机研究所(天津) | 一种基于长齿铁芯定子电机的电辅助增压器结构 |
DE102020214337A1 (de) * | 2020-11-13 | 2022-05-19 | Mtu Friedrichshafen Gmbh | Medienspaltmaschine, Turbolader mit einer solchen Medienspaltmaschine und Leistungserzeugungseinrichtung mit einem solchen Turbolader |
CN114370416A (zh) * | 2021-12-27 | 2022-04-19 | 广州市昊志机电股份有限公司 | 一种空压机和燃料电池系统 |
EP4206447A1 (de) * | 2022-01-04 | 2023-07-05 | G+L Innotec GmbH | Medienspaltmotor für ein brennstoffzellensystem, brennstoffzellensystem und verwendung |
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TWI504107B (zh) * | 2010-09-10 | 2015-10-11 | Delta Electronics Inc | 矽鋼片組件及其組裝方法 |
GB2507153B (en) * | 2012-08-24 | 2020-08-26 | Borgwarner Inc | Cooling stator windings of an electric machine |
DE102013109136A1 (de) * | 2012-08-24 | 2014-02-27 | Ecomotors International, Inc. | Kühlung einer elektrischen Maschine |
DE102014210451A1 (de) * | 2014-06-03 | 2015-12-03 | Robert Bosch Gmbh | Turbolader mit elektrischer Maschine |
TWI587610B (zh) * | 2015-09-04 | 2017-06-11 | Wen-San Chou | 馬達之散熱結構 |
US10574114B2 (en) * | 2017-05-02 | 2020-02-25 | Moog Inc. | Electric motor for use in pressurized fluid environment |
-
2017
- 2017-05-04 DE DE102017207532.5A patent/DE102017207532A1/de active Pending
-
2018
- 2018-05-02 US US16/610,560 patent/US11451114B2/en active Active
- 2018-05-02 CN CN201880029595.XA patent/CN110754029B/zh active Active
- 2018-05-02 WO PCT/EP2018/061123 patent/WO2018202668A1/de unknown
- 2018-05-02 EP EP18721379.8A patent/EP3619796A1/de active Pending
Also Published As
Publication number | Publication date |
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CN110754029B (zh) | 2021-11-02 |
CN110754029A (zh) | 2020-02-04 |
WO2018202668A1 (de) | 2018-11-08 |
US11451114B2 (en) | 2022-09-20 |
DE102017207532A1 (de) | 2018-11-08 |
US20210156300A1 (en) | 2021-05-27 |
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