CN103346639A - Novel permanent magnet motor - Google Patents
Novel permanent magnet motor Download PDFInfo
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- CN103346639A CN103346639A CN2013102774905A CN201310277490A CN103346639A CN 103346639 A CN103346639 A CN 103346639A CN 2013102774905 A CN2013102774905 A CN 2013102774905A CN 201310277490 A CN201310277490 A CN 201310277490A CN 103346639 A CN103346639 A CN 103346639A
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Abstract
Provided is a novel permanent magnet motor. The novel permanent magnet motor comprises a motor shell (1), a stator core (2), a permanent magnet rotor (3), a stator winding (4), a rotor shaft (5), a left bearing (6) and a right bearing (7). A left baffle ring (8) is arranged on the left side of the rotor shaft (5), a right baffle ring (9) is arranged on the right side of the rotor shaft (5), and the left baffle ring (8) and the right baffle ring (9) are in rigid connection with the rotor shaft (5). Internal threads are arranged on the permanent magnet rotor (3), and external threads are arranged on the rotor shaft (5) and matched with the internal threads of the permanent magnet rotor (3). The permanent magnet rotor (3) moves from left to right in the axial direction on the rotor shaft (5) through rotation of the threads, and the moving range is set between the left baffle ring (8) and the right baffle ring (9). The permanent magnet rotor (3) can be arranged on different positions of the rotor shaft (5), the motor has different effective lengths and output characters, and therefore different requirements can be met.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind of effective length and motor characteristic are with the different motors that change of mode of operation.
Background technology
In a lot of occasions, motor is different in electronic demand with generating state.Be example with the starter-generator, the starting-generating machine technology has replaced traditional starter, generator.Make motor usefulness when piloting engine, engine starts function to work voluntarily after being higher than a little at top speed, and motor then transfers generating state to by electric motor state, makes generator usefulness, has realized the function of engine starting and generator.And the problem that starter-generator exists need when electric model is piloted engine to be motor output low speed high torque, but when the high engine speeds operation is generated electricity, needs very high speed and very little torque.Two kinds of operating modes need be unified in the motor, and therefore the weak magnetic multiplying power of starter-generator system is very high usually, usually surpass 10, so that are difficult to realize FR efficient operation, and simultaneously weak magnetic control system is also very difficult.In order to address this problem, a lot of producers adopt mixed excitation electric machine, and by regulating the efficient operation in the excitation realization full speed range, still mixed excitation electric machine needs brush that exciting current is provided mostly, and reliability and the maintainability of motor are relatively poor.
Summary of the invention
The objective of the invention is to overcome existing starter-generator speed-regulating range width, state of starting operating and generating operation mode are difficult to unified problem to the external characteristic demand of motor, propose a kind of new magneto, the present invention can address the above problem and improve the system effectiveness in the motor full speed range.
The effective length of radial flux motors is defined as stator core and rotor core in the part of axial overlap, and at this lap, the magnetic field of rotor can interact, thereby realizes the conversion of energy.And stator core and rotor core can't be realized the conversion of energy in axial non-overlapping portions, are invalid parts.For radial motor, torque and the power of motor increase along with the increase of effective length, and the permanent magnetism back-emf of motor reduces along with the increase of effective length.
Magneto of the present invention comprises electric machine casing, stator core, stator winding, p-m rotor, armature spindle, left side bearing and right side bearing.Stator winding is embedded in the stator slot of stator core, and stator core is wrapped up by electric machine casing.P-m rotor has internal thread, and armature spindle has external screw thread, and p-m rotor is by the outside of thread set at armature spindle; Armature spindle is supported in the cavity of stator core by left side bearing and right side bearing.The left and right sides of armature spindle has left side baffle ring and right side baffle ring respectively, and described left side baffle ring and right side baffle ring and armature spindle are rigidly connected.The external screw thread of armature spindle matches with the internal thread of p-m rotor, makes p-m rotor pass through the screw thread rotation move left and right at armature spindle, and moving range is between left side baffle ring and right side baffle ring.
When the p-m rotor of magneto of the present invention at armature spindle rotation relatively takes place, fit with the left side baffle ring up to the p-m rotor left side, this moment motor p-m rotor and stator core in the length of axial overlap, i.e. motor effective length L1 maximum; When the p-m rotor of motor of the present invention at armature spindle rotation relatively takes place, to fit with the right side baffle ring up to the p-m rotor right side, motor p-m rotor at this moment and stator core are in the length of axial overlap, i.e. motor effective length L2 minimum; The size of motor effective length L1 and L2 can design adjustment according to the demand of reality.Therefore the p-m rotor of described motor is at the diverse location of armature spindle, the effective length difference of motor, and then motor has different output characteristic, can meet the different needs.
Operation principle of the present invention and the course of work are described below:
Definition armature spindle right side is thread head, at the bottom of the left side is screw thread; Definition motor positive direction is for seeing the dextrorotation veer from the right side.
When the screw thread of supposing the p-m rotor of motor of the present invention and armature spindle is right-handed thread, namely see that from thread head the dextrorotation change of team screws in the bottom of thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor on armature spindle, axially to be moved to the left, fit with the left side baffle ring up to the p-m rotor left side, the electromagnetic torque of p-m rotor is delivered on the armature spindle to be exported, motor p-m rotor and the stator core of this moment are the longest in the length of axial overlap, the torque maximum of output, permanent magnetism back-emf maximum; When described motor is in the generating state that is rotated in the forward, armature spindle is subjected to extraneous torque and is rotated in the forward, causing the motor p-m rotor to produce in the relative rotation of armature spindle generation axially moves right, fit up to p-m rotor right side and right side baffle ring, the transmission of torque of armature spindle is to p-m rotor, p-m rotor and the stator core of the motor of this moment are the shortest in the length of axial overlap, output torque minimum, permanent magnetism back-emf minimum.
When the screw thread of supposing the p-m rotor of motor of the present invention and armature spindle is right-handed thread, namely see that from thread head the dextrorotation change of team screws in the bottom of thread, when motor is in the motoring condition of reverse rotation, p-m rotor is subjected to electromagnetic torque and reverse rotation, cause p-m rotor to take place axially to move right at armature spindle, fit up to p-m rotor right side and right side baffle ring, the electromagnetic torque of p-m rotor is delivered on the armature spindle to be exported, p-m rotor and the stator core of the motor of this moment are the shortest in the length of axial overlap, output torque minimum, permanent magnetism back-emf minimum; When described motor is in the generating state of reverse rotation, armature spindle is subjected to extraneous torque and reverse rotation, rotation relatively takes place and produces and axially be moved to the left at armature spindle in the p-m rotor that causes motor, fit with the left side baffle ring up to the p-m rotor left side, the transmission of torque of armature spindle is to p-m rotor, p-m rotor and the stator core of the motor of this moment are the longest in the length of axial overlap, the torque maximum of output, permanent magnetism back-emf maximum.
When the screw thread of supposing the p-m rotor of motor of the present invention and armature spindle is left hand thread, namely see to be rotated counterclockwise from thread head and can screw in the bottom of thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor on armature spindle, axially to move right, fit up to p-m rotor right side and right side baffle ring, the electromagnetic torque of p-m rotor is delivered on the armature spindle to be exported, this moment, p-m rotor and the stator core of motor were the shortest in the length of axial overlap, output torque minimum, permanent magnetism back-emf minimum; When described motor is in the generating state that is rotated in the forward, armature spindle is subjected to extraneous torque and is rotated in the forward, causing the motor p-m rotor to produce in the relative rotation of armature spindle generation axially is moved to the left, fit with the left side baffle ring up to the p-m rotor left side, the transmission of torque of armature spindle is to p-m rotor, this moment, p-m rotor and the stator core of motor were the longest in the length of axial overlap, the torque maximum of output, permanent magnetism back-emf maximum.
When the screw thread of supposing the p-m rotor of motor of the present invention and armature spindle is left hand thread, namely see to be rotated counterclockwise from thread head and can screw in the bottom of thread, when motor is in the motoring condition of reverse rotation, p-m rotor is subjected to electromagnetic torque and reverse rotation, cause p-m rotor to take place axially to be moved to the left at armature spindle, fit with the left side baffle ring up to the p-m rotor left side, the electromagnetic torque of p-m rotor is delivered on the armature spindle to be exported, this moment, p-m rotor and the stator core of motor were the longest in the length of axial overlap, the torque maximum of output, permanent magnetism back-emf maximum; When described motor is in the generating state of reverse rotation, armature spindle is subjected to extraneous torque and reverse rotation, rotation relatively takes place and produces and axially move right at armature spindle in the p-m rotor that causes motor, fit up to p-m rotor right side and right side baffle ring, the transmission of torque of armature spindle is to p-m rotor, p-m rotor and the stator core of the motor of this moment are the shortest in the length of axial overlap, output torque minimum, permanent magnetism back-emf minimum.
By above-mentioned analysis as seen, when the screw thread of motor p-m rotor and armature spindle is right-handed thread, motor of the present invention when the generating state of the motoring condition that is rotated in the forward and reverse rotation, the torque maximum of motor output, permanent magnetism back-emf maximum; When the motoring condition of the generating state that is rotated in the forward and reverse rotation, the torque minimum of motor output, permanent magnetism back-emf minimum.
In like manner, when the screw thread of motor p-m rotor and armature spindle is left hand thread, motor of the present invention when the generating state of the motoring condition that is rotated in the forward and reverse rotation, the torque minimum of motor output, permanent magnetism back-emf minimum; When the motoring condition of the generating state that is rotated in the forward and reverse rotation, the torque maximum of motor output, permanent magnetism back-emf maximum.
This shows that the motor that the present invention proposes has following tangible technical advantage:
1. electric machine structure is simple, and cost is low;
2. motor characteristic is adjusted automatically according to operating state, need not artificial control, has reduced the control difficulty;
Motor need export big torque the time, only need design to make that p-m rotor is moved to the left under this operating mode; When motor needs high-speed cruising, only need design to make that p-m rotor moves right under this operating mode, the permanent magnetism back-emf reduces, and weak magnetic multiplying power reduces.Solve the contradiction of low speed high torque and wide speed regulating range, and had higher efficient in the full speed range.
Description of drawings
Fig. 1 is the p-m rotor of motor of the present invention and the embodiment 1 that armature spindle is right-handed thread, among the figure: 1 electric machine casing, 2 stator cores, 3 p-m rotors, 4 stator winding, 5 armature spindles, 6 left side bearings, 7 right side bearings, 8 left side baffle rings, 9 right side baffle rings;
Fig. 2 is first kind of operating state of motor of the present invention;
Fig. 3 is second kind of operating state of motor of the present invention;
Fig. 4 is the p-m rotor of motor of the present invention and the embodiment 2 that armature spindle is left hand thread.
Embodiment
As shown in Figure 1, magneto of the present invention comprises electric machine casing 1, stator core 2, p-m rotor 3, stator winding 4, armature spindle 5, left side bearing 6 and right side bearing 7; Stator winding 4 is embedded in the stator slot of stator core 2, and stator core 2 is wrapped up by electric machine casing 1; P-m rotor 3 has internal thread, and armature spindle 5 has external screw thread, and p-m rotor 3 is by the outside of thread set at armature spindle 5, and armature spindle 5 is supported in the cavity of stator core 2 by left side bearing 6, right side bearing 7.There are left side baffle ring 8 and right side baffle ring 9 in the left and right sides of armature spindle 5, and left side baffle ring 8 and right side baffle ring 9 are rigidly connected with armature spindle 5; The external screw thread of armature spindle 5 matches with the internal thread of p-m rotor 3, makes p-m rotor 3 pass through the screw thread rotation move left and right at armature spindle 5, and moving range is between left side baffle ring 8 and right side baffle ring 9.
Among the embodiment 1 shown in Figure 1, the internal thread of p-m rotor 3 is right-handed thread; The external screw thread of armature spindle 5 is right-handed thread.
As shown in Figure 2, when motor p-m rotor 3 of the present invention at armature spindle 5 rotation relatively takes place, fit the p-m rotor 3 of the motor of this moment and the length of stator core 2 at axial overlap, i.e. motor effective length L1 maximum up to p-m rotor 3 left sides and left side baffle ring 8; When described motor p-m rotor 3 at armature spindle 5 rotation relatively takes place, fit the motor p-m rotor 3 of this moment and the length of stator core 2 at axial overlap, i.e. motor effective length L2 minimum up to p-m rotor 3 right sides and right side baffle ring 9; The size of L1 and L2 can design adjustment according to the demand of reality.Therefore the p-m rotor 3 of described motor is at the diverse location of armature spindle 5, the effective length difference of motor, and then motor has different output characteristic, meets the different needs.
As shown in Figure 2, when the external screw thread of the internal thread of motor p-m rotor 3 of the present invention and armature spindle 5 is right-handed thread, namely see that from thread head the dextrorotation change of team screws in the bottom of thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor 3 is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor 3 on armature spindle 5, axially to be moved to the left, fit up to p-m rotor 3 left sides and left side baffle ring 8, the electromagnetic torque of p-m rotor 3 is delivered to output on the armature spindle 5, the motor p-m rotor 3 of this moment is the longest in the length of axial overlap with stator core 2, the torque maximum of output, permanent magnetism back-emf maximum.As shown in Figure 3, when described motor is in the generating state that is rotated in the forward, armature spindle 5 is subjected to extraneous torque and is rotated in the forward, causing motor p-m rotor 3 to produce in the relative rotation of armature spindle 5 generations axially moves right, fit up to p-m rotor 3 right sides and right side baffle ring 9, the transmission of torque of armature spindle 5 is to p-m rotor 3, and the motor p-m rotor 3 of this moment is the shortest in the length of axial overlap with stator core 2, output torque minimum, permanent magnetism back-emf minimum.
As shown in Figure 3, when the external screw thread of the internal thread of motor p-m rotor 3 of the present invention and armature spindle 5 all is right-handed thread, when motor is in the motoring condition of reverse rotation, p-m rotor 3 is subjected to electromagnetic torque and reverse rotation, cause p-m rotor 3 to take place axially to move right at armature spindle 5, fit up to p-m rotor 3 right sides and right side baffle ring 9, the electromagnetic torque of p-m rotor 3 is delivered to output on the armature spindle 5, the motor p-m rotor 3 of this moment is the shortest in the length of axial overlap with stator core 2, output torque minimum, permanent magnetism back-emf minimum; As shown in Figure 2, when described motor is in the generating state of reverse rotation, armature spindle 5 is subjected to extraneous torque and reverse rotation, causing motor p-m rotor 3 to produce in the relative rotation of armature spindle 5 generations axially is moved to the left, fit up to p-m rotor 3 left sides and left side baffle ring 8, the transmission of torque of armature spindle 5 is to p-m rotor 3, and the motor p-m rotor 3 of this moment is the longest in the length of axial overlap with stator core 2, the torque maximum of output, permanent magnetism back-emf maximum.
In like manner, embodiment 2 as shown in Figure 4, when the external screw thread of the internal thread of the p-m rotor 3 of motor and armature spindle 5 all was left hand thread, motor of the present invention was when the generating state of the motoring condition that is rotated in the forward and reverse rotation, the torque minimum of motor output, permanent magnetism back-emf minimum; When the motoring condition of the generating state that is rotated in the forward and reverse rotation, the torque maximum of motor output, permanent magnetism back-emf maximum.
As shown in Figure 4, when the external screw thread of the internal thread of the p-m rotor 3 of described motor and armature spindle 5 is left hand thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor 3 is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor 3 on armature spindle 5, axially to move right, fit up to p-m rotor 3 right sides and right side baffle ring 9, the electromagnetic torque of p-m rotor 3 is delivered to output on the armature spindle 5, the p-m rotor 3 of the motor of this moment is the shortest in the length of axial overlap with stator core 2, output torque minimum, permanent magnetism back-emf minimum; When described motor is in the generating state that is rotated in the forward, armature spindle 5 is subjected to extraneous torque and is rotated in the forward, causing motor p-m rotor 3 to produce in the relative rotation of armature spindle 5 generations axially is moved to the left, fit up to p-m rotor 3 left sides and left side baffle ring 8, the transmission of torque of armature spindle 5 is to p-m rotor 3, the motor p-m rotor 3 of this moment is the longest in the length of axial overlap with stator core 2, the torque maximum of output, permanent magnetism back-emf maximum.
As shown in Figure 4, when the external screw thread of the internal thread of the p-m rotor 3 of described motor and armature spindle 5 is left hand thread, when motor is in the motoring condition of reverse rotation, p-m rotor 3 is subjected to electromagnetic torque and reverse rotation, cause p-m rotor 3 to take place axially to be moved to the left at armature spindle 5, fit up to p-m rotor 3 left sides and left side baffle ring 8, the electromagnetic torque of p-m rotor 3 is delivered to output on the armature spindle 5, this moment, the p-m rotor 3 of motor was the longest in the length of axial overlap with stator core 2, the torque maximum of output, permanent magnetism back-emf maximum; When described motor is in the generating state of reverse rotation, armature spindle 5 is subjected to extraneous torque and reverse rotation, rotation relatively takes place and produces and axially move right at armature spindle 5 in the p-m rotor 3 that causes motor, fit up to p-m rotor 3 right sides and right side baffle ring 9, the transmission of torque of armature spindle 5 is to p-m rotor 3, the motor p-m rotor 3 of this moment is the shortest in the length of axial overlap with stator core 2, output torque minimum, permanent magnetism back-emf minimum.
Claims (6)
1. novel permanent magnetic motor, it is characterized in that: described magneto comprises electric machine casing (1), stator core (2), stator winding (4), p-m rotor (3), armature spindle (5), left side bearing (6) and right side bearing (7); Stator winding (4) is embedded in the stator slot of stator core (2), and stator core (2) is wrapped up by electric machine casing (1); P-m rotor (3) has internal thread, and armature spindle (5) has external screw thread, p-m rotor (3) by thread set in armature spindle (5) outside; Armature spindle (5) is supported in the cavity of stator core (2) by left side bearing (6) and right side bearing (7); There is left side baffle ring (8) in the left side of armature spindle (5), and there is right side baffle ring (9) on the right side of armature spindle (5), and left side baffle ring (8) and right side baffle ring (9) are rigidly connected with armature spindle (5); The external screw thread of armature spindle (5) matches with the internal thread of p-m rotor (3), makes p-m rotor (3) pass through the screw thread rotation move left and right at armature spindle (5), and moving range is between left side baffle ring (8) and right side baffle ring (9).
2. according to the described novel permanent magnetic motor of claim 1, it is characterized in that: when p-m rotor (3) generation on armature spindle (5) of described motor is rotated relatively and is moved to the left, fit with left side baffle ring (8) up to p-m rotor (3) left side, the p-m rotor (3) of motor and stator core (2) are in the length of axial overlap, i.e. motor effective length L1 maximum at this moment; When p-m rotor (3) generation on armature spindle (5) of motor is rotated relatively and moved right, fit up to p-m rotor (3) right side and right side baffle ring (9), the motor p-m rotor (3) of this moment and the length of stator core (2) at axial overlap, i.e. motor effective length L2 minimum; The p-m rotor of described motor (3) is at the diverse location of armature spindle (5), the effective length difference of motor, and then motor has different output characteristic.
3. according to claim 1 or 2 described novel permanent magnetic motors, it is characterized in that: the right side that defines described armature spindle (5) is thread head, sees from the right side to clockwise turn to the motor positive direction; When the external screw thread of the internal thread of the p-m rotor (3) of described motor and armature spindle (5) is right-handed thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor (3) is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor (3) on armature spindle (5), axially to be moved to the left, fit with left side baffle ring (8) up to p-m rotor (3) left side, the electromagnetic torque of p-m rotor (3) is delivered to armature spindle (5) and goes up output, the p-m rotor (3) of the motor of this moment is the longest in the length of axial overlap with stator core (2), the torque maximum of output, permanent magnetism back-emf maximum; When described motor is in the generating state that is rotated in the forward, armature spindle (5) is subjected to extraneous torque and is rotated in the forward, rotation relatively takes place and produces and axially move right at armature spindle (5) in the p-m rotor (3) that causes motor, fit up to p-m rotor (3) right side and right side baffle ring (9), the transmission of torque of armature spindle (5) is to p-m rotor (3), the p-m rotor (3) of the motor of this moment is the shortest in the length of axial overlap with stator core (2), output torque minimum, permanent magnetism back-emf minimum.
4. according to claim 1 or 2 described novel permanent magnetic motors, it is characterized in that: defining described armature spindle (5) right side is thread head, sees from the right side to clockwise turn to the motor positive direction; When the external screw thread of the internal thread of the p-m rotor (3) of described motor and armature spindle (5) is right-handed thread, when motor is in the motoring condition of reverse rotation, p-m rotor (3) is subjected to electromagnetic torque and reverse rotation, causing p-m rotor (3) to go up generation at armature spindle (5) axially moves right, fit up to p-m rotor (3) right side and right side baffle ring (9), the electromagnetic torque of p-m rotor (3) is delivered to armature spindle (5) and goes up output, the p-m rotor (3) of the motor of this moment is the shortest in the length of axial overlap with stator core (2), output torque minimum, permanent magnetism back-emf minimum; When described motor is in the generating state of reverse rotation, armature spindle (5) is subjected to extraneous torque and reverse rotation, rotation relatively takes place and produces and axially be moved to the left at armature spindle (5) in the p-m rotor (3) that causes motor, fit with left side baffle ring (8) up to p-m rotor (3) left side, the transmission of torque of armature spindle (5) is to p-m rotor (3), the p-m rotor (3) of the motor of this moment is the longest in the length of axial overlap with stator core (2), the torque maximum of output, permanent magnetism back-emf maximum.
5. according to claim 1 or 2 described novel permanent magnetic motors, it is characterized in that: defining described armature spindle (5) right side is thread head, sees from the right side to clockwise turn to the motor positive direction; When the external screw thread of the internal thread of the p-m rotor (3) of described motor and armature spindle (5) is left hand thread, when motor is in the motoring condition that is rotated in the forward, p-m rotor (3) is subjected to electromagnetic torque and is rotated in the forward, cause p-m rotor (3) on armature spindle (5), axially to move right, fit up to p-m rotor (3) right side and right side baffle ring (9), the electromagnetic torque of p-m rotor (3) is delivered to armature spindle (5) and goes up output, this moment, the p-m rotor (3) of motor was the shortest in the length of axial overlap with stator core (2), output torque minimum, permanent magnetism back-emf minimum; When described motor is in the generating state that is rotated in the forward, armature spindle (5) is subjected to extraneous torque and is rotated in the forward, rotation relatively takes place and produces and axially be moved to the left at armature spindle (5) in the p-m rotor (3) that causes motor, fit with left side baffle ring (8) up to p-m rotor (3) left side, the transmission of torque of armature spindle (5) is to p-m rotor (3), the p-m rotor (3) of the motor of this moment is the longest in the length of axial overlap with stator core (2), the torque maximum of output, permanent magnetism back-emf maximum.
6. according to claim 1 or 2 described novel permanent magnetic motors, it is characterized in that: defining described armature spindle (5) right side is thread head, sees from the right side to clockwise turn to the motor positive direction; When the external screw thread of the internal thread of described motor p-m rotor (3) and armature spindle (5) is left hand thread, when motor is in the motoring condition of reverse rotation, p-m rotor (3) is subjected to electromagnetic torque and reverse rotation, causing p-m rotor (3) to go up generation at armature spindle (5) axially is moved to the left, fit with left side baffle ring (8) up to p-m rotor (3) left side, the electromagnetic torque of p-m rotor (3) is delivered to armature spindle (5) and goes up output, the p-m rotor (3) of the motor of this moment is the longest in the length of axial overlap with stator core (2), the torque maximum of output, permanent magnetism back-emf maximum; When described motor is in the generating state of reverse rotation, armature spindle (5) is subjected to extraneous torque and reverse rotation, causing motor p-m rotor (3) to produce in the relative rotation of armature spindle (5) generation axially moves right, fit up to p-m rotor (3) right side and right side baffle ring (9), the transmission of torque of armature spindle (5) is to p-m rotor (3), the p-m rotor (3) of the motor of this moment is the shortest in the length of axial overlap with stator core (2), output torque minimum, permanent magnetism back-emf minimum.
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Cited By (6)
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| CN105658971A (en) * | 2013-10-17 | 2016-06-08 | 斯凯孚公司 | Bearing arrangement |
| CN107559141A (en) * | 2016-06-30 | 2018-01-09 | 上海交通大学 | Electromagnetic actuator device based on fan blade vortex generator active control |
| CN113162313A (en) * | 2021-04-15 | 2021-07-23 | 浙大城市学院 | Two-dimensional motor and servo valve |
| WO2021244695A1 (en) * | 2020-06-04 | 2021-12-09 | Schaeffler Technologies AG & Co. KG | Electric radial flow machine and powertrain |
| WO2021244696A1 (en) * | 2020-06-04 | 2021-12-09 | Schaeffler Technologies AG & Co. KG | Electric machine, displacement device for an electric machine, and powertrain for a motor vehicle |
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Application publication date: 20131009 |