The invention relates to a stator (1) for an electric aircraft drive unit (24), the stator having multiple machine coils (2), a stator frame (3) and a rotor holder (4). The machine coils (2) are arranged in a circumferential direction (5) of the rotor holder (4) and are fixed to one another and to the electric aircraft drive unit (24) by means of the stator frame (3). Each of the machine coils (2) has at least one winding (7) and a coil core (22) so that a torque can be applied to a rotor (27) arranged in the rotor holder (4). The electric aircraft drive unit (24) has at least one propulsion assembly (25) by means of which a driving air mass flow (8) which flows in a thrust direction (9) can be generated. The stator (1) has a cooling air inlet (10) which is directed counter to the thrust direction (9) and is arranged in the driving air mass flow (8), and a cooling air outlet (11) which is directed in the thrust direction (9). A cooling air channel (12) is formed between the cooling air inlet (10) and the cooling air outlet (11). The windings (7) project in part into the cooling air channel (12), and a cooling air mass flow (13) branched off from the driving air mass flow (8) can flow through the cooling air channel (12) so that the windings (7) can be cooled by the driving air mass flow (8). The invention also relates to an electric aircraft drive unit (24).
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 9/06 - 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
H02K 1/30 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
H02K 3/30 - Windings characterised by the insulating material
2.
HANDHELD LASER MACHINING APPARATUS FOR MACHINING A WORKPIECE, AND FUNNEL FOR A HANDHELD LASER MACHINING APPARATUS
The invention relates to a handheld laser machining apparatus for machining a workpiece. The laser machining apparatus comprises a handheld apparatus (100) comprising an optical device for deflecting laser beams onto the workpiece, a supply unit (3) for open-loop or closed-loop control of the handheld device and/or for supplying power/fluid to the handheld device and a funnel (4) for coupling the handheld device to the workpiece. The invention also relates to a funnel (4) for a corresponding laser machining apparatus.
The invention relates to a handheld laser machining apparatus for machining a workpiece. The laser machining apparatus comprises a handheld apparatus (100) comprising an optical device for deflecting laser beams onto the workpiece, a supply unit (3) for open-loop or closed-loop control of the handheld device and/or for supplying power/fluid to the handheld device, and a funnel (4) for coupling the handheld device to the workpiece. The invention also relates to a funnel (4) for a corresponding laser machining apparatus.
09 - Scientific and electric apparatus and instruments
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Graving tools [hand tools]. Lasers, not for medical purposes; lasers for engraving as
hand tools; lasers for marking as hand tools. Laser engravings; welding services; welding.
09 - Scientific and electric apparatus and instruments
40 - Treatment of materials; recycling, air and water treatment,
Goods & Services
Hand tools, namely, graving tools Lasers, not for medical purposes; Lasers, not for medical purposes, namely, lasers for industrial use Laser engravings; welding services; welding
The invention relates to an electric machine with a stator (1), with a rotor and with multiple machine coils (3). The electrical machine comprises a cooling device, which is suitable for cooling a superconducting material to at least below a transition temperature. Windings (4) of at least two machine coils (3) consist of the superconducting material and are assigned to different winding groups. The windings (4) are operatively connected with the cooling device, in order to cool the windings (4) to below the transition temperature. The electrical machine comprises an open-loop or closed-loop controlled power supply device, electrically conductively connected with the windings (4), for the supply of electrical power and controlling of the machine coils (2). At least two winding groups are each electrically-conductively connected with a separate, open-loop or closed-loop controlled power output stage (6) of the power supply device. The separate, open-loop or closed-loop controlled power output stages (6) are arranged within the thermal insulation area (5) of the electric machine delimited by the thermal insulator.
The invention relates to an electrical machine comprising a stator (1), a rotor and multiple machine coils (3). The electrical machine comprises a cooling device which is suitable for cooling a superconducting material, at least to below a transition temperature. Windings (4) of at least two machine coils (3) consist of the superconducting material and are assigned to different winding groups. The windings (4) are operatively connected to the cooling device in order to cool the windings (4) to below the transition temperature. The electrical machine comprises an open-loop or closed-loop controlled power supply device that is electrically conductively connected to the windings (4), for the supply of electrical power and activation of the machine coils (2). At least two winding groups are each electrically conductively connected to a separate, open-loop or closed-loop controlled power output stage (6) of the power supply device. The separate, open-loop or closed-loop controlled power output stages (6) are arranged inside the thermally insulated region (5) of the electrical machine, which is delimited by the thermal insulator.
The invention relates to an electrical machine (1), comprising a stator (2), a rotor (15) and a plurality of machine coils (3). The electrical machine (1) has a cooling device (14) which is suitable for cooling a superconducting material at least to below a transition temperature. A winding (4) of at least one machine coil (3) is composed of the superconducting material. The winding (4) is operatively connected to the cooling device (14). The cooling device (14) has a cooling pipe (6). The cooling pipe (6) bears at least in some sections against the winding (4).
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Electric motors and generators, other than for land
vehicles; electric driving motors, other than for land
vehicles; synchronous motors; asynchronous motors;
crankcases for machines, generators and motors; electric
braking systems, other than for land vehicles;
superconductive electric motors and generators. Motors, electric, for land vehicles; gear boxes for land
vehicles; electric braking systems for land vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Electric motors and generators, other than for land vehicles; electric driving motors, other than for land vehicles; synchronous motors and asynchronous motors, not for land vehicles; crankcases for machines, generators and motors; electric braking systems, other than for land vehicles; superconductive electric motors and generators, not for land vehicles [ Motors, electric, for land vehicles; gear boxes for land vehicles; electric braking systems for land vehicles ]
The invention relates to a riverboat (11) with at least one drive unit (1). The drive unit (1) has a propeller shaft (4), a drive internal combustion engine (2), at least one generator internal combustion engine (7), an electric generator, and a controllable electric motor (5). The drive internal combustion engine (2) can be brought into releasable engagement with the propeller shaft (4) in a first propeller shaft (4) engagement region. The controllable electric motor (5) can be operated with the electric energy generated by the generator internal combustion engine (7) and can drive the propeller shaft (4). The controllable electric motor (5) is in non-releasable engagement with the propeller shaft (4) in a second propeller shaft (4) engagement region which is spaced from the first engagement region. The invention also relates to a method for operating a riverboat (11) comprising a drive internal combustion engine (2) which can be brought into releasable engagement with a propeller shaft (4) in a first propeller shaft (4) engagement region and comprising a controllable electric motor (5) which can drive the propeller shaft (4). The controllable electric motor (5) is in permanent engagement with the propeller shaft (4) in a second propeller shaft (4) engagement region which is spaced from the first engagement region, and the controllable electric motor has approximately only 50% of the drive power of the drive internal combustion engine (2). The riverboat (11) is driven using the controllable electric motor (5) at least in a partial-load operating range.
The invention relates to a motor which is provided with windings of a superconducting material which, for the operation of the motor, are cooled down below a transition temperature, the motor and especially the windings being actuated following an optimized substantially rectangular or trapezoid current curve in order to optimize operation.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
H02K 55/00 - Dynamo-electric machines having windings operating at cryogenic temperatures
The invention relates to an electrical machine (1) having a stator (2), having a rotor (15) and having a plurality of machine coils. The electrical machine (1) has a cooling device which is suitable for cooling a superconducting material at least down to a transition temperature. A winding of the at least one machine coil is composed of the superconducting material. The winding is operatively connected to the cooling device. The machine coils are arranged on the stator (2). The at least one machine coil is arranged within a winding cryostat (17), and the winding cryostat (17) is operatively connected to the cooling device. The winding cryostat (17) is arranged within a thermal insulator (7). The thermal insulator (7) has regions in which a vacuum can be generated.
The invention relates to a method for controlling a rotating electric machine in an open-loop or closed-loop manner. The electric machine has a stator (3), a rotor (4), several machine coils, and a supply apparatus that can be controlled in an open-loop manner. The several machine coils include at least one load coil (5, 6, 7) for connecting to an electric network (17) and at least one control coil (8, 9, 10), wherein only the at least one control coil (8, 9, 10) is connected to the supply apparatus in an electrically conductive manner, the supply apparatus being controllable in an open-loop or closed-loop manner, and the rotating electric machine is controlled in an open-loop manner with the aid of the at least one control coil (8, 9, 10). The at least one control coil (8, 9, 10) is supplied with an alternating control voltage by the supply apparatus that can be controlled in an open-loop or closed-loop manner. The invention further relates to a rotating electric machine for carrying out the method, comprising a stator (3), a rotor (4), a plurality of machine coils, and a supply apparatus that can be controlled in an open-loop or closed-loop manner. The plurality of machine coils include at least one load coil (5, 6, 7) for connecting to an electric network (17) and at least one control coil (8, 9, 10), wherein the at least one control coil (8, 9, 10) can be connected to the supply apparatus in an electrically conductive manner, the supply apparatus that can be controlled in an open-loop or closed-loop manner.
H02P 4/00 - Arrangements specially adapted for regulating or controlling the speed or torque of electric motors that can be connected to two or more different electric power supplies
H02P 6/00 - Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor positionElectronic commutators therefor
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
H02P 9/10 - Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
H02P 25/18 - Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
H02P 25/22 - Multiple windingsWindings for more than three phases
H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
H02P 1/46 - Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
H02K 21/04 - Windings on magnets for additional excitation
Loading apparatus (1) for a test bench (2) for testing a test object (17), with at least two loading machines (3, 4), wherein a first loading machine (3) comprises a first electric motor and a second loading machine (4) comprises a second electric motor, wherein the electric motors are each equipped for a predetermined loading range, and the loading range of the first loading machine (3) differs from the loading range of the second loading machine (4) or the other loading machines, wherein the loading machines (3, 4) can be connected individually to the test object (17) and/or can be connected via a coupling so as to transmit a torque, as a result of which a test region to be tested of the test object (17) is substantially completely covered.
Turbine apparatus for a hydroelectric power station, with a turbine impeller, which is capable of rotating about a turbine rotary spindle, which is in particular arranged vertically, with turbine blades (4), which are fitted at an angle with respect to the turbine impeller (3), in particular a fixed angle, with a generator, which converts the mechanical rotation energy of the turbine impeller into electrical energy, wherein the generator is in particular an annular generator (5), with an annular rotor (6) and a stator (7), which is correspondingly arranged in annular fashion, wherein the turbine rotary spindle (2) is coupled to the rotor (6) in such a way that it is fixed against rotation, and the rotation about the turbine rotary spindle (2) takes place by means of a hollow shaft (8), with a pot-like receptacle (9), into which a fixed bearing journal (10) with movable bearings (11) arranged around it is inserted, in particular directly, and the turbine impeller (3) and the rotor (6) are capable of rotating about the bearing journal (10).
