Abstract: A stator for an electric machine of a motor vehicle, having an annular yoke, with an inner side directed inwards in the radial direction of the yoke, wherein a plurality of pole teeth are connected by form fit to the yoke on the inner side of the yoke, a stator winding which is formed as a mat and which is arranged between the pole teeth, a first cooling channel through which a cooling medium may flow and which extends in the longitudinal direction of the stator, wherein the first cooling channel is arranged in a recess, and a second cooling channel through which a cooling medium may flow, wherein the second cooling channel is arranged between two adjacent pole teeth between an inner side of the stator winding directed inwards in the radial direction of the stator and a pole shoe of the pole tooth.

Abstract: Various embodiments include a method for producing a galvanic lithium-ion cell comprising: separating a first electrode material from a second electrode material using a separator; and applying the first electrode material to a first side of the separator by coating.

Abstract: A device is provide for operating a machine tool. The machine tool includes a rotation unit designed to rotate a workpiece about an axis of rotation with an adjustable rotational speed progression, and an ultra-short pulse laser for generating laser pulses, the laser being arranged such that material of the workpiece is removed by means of the laser pulses. The device is configured to adjust the rotational speed progression based on geometry data of a specified geometry and/or a specified surface quality characteristic value representative of a corresponding surface quality.

Abstract: A method is provided for making electrical contact with an electronic component in the form of a stack formed from a plurality of material layers, which react upon application of an electric field, and a plurality of electrode layers, wherein each material layer is arranged between two of the electrode layers. An insulation structure is generated on at least one stack circumferential region of the stack, which exposes each second electrode layer of the at least one stack circumferential region for electrical contact to be made. Also, a contact-making structure is applied to the at least one stack circumferential region which is provided with the insulation structure. Before the step of generating the contact-making structure, the material layers are partially removed by a material-removing method such that the electrode layers are exposed close to the surface.

Abstract: A device is provide for operating a machine tool. The machine tool includes a rotation unit designed to rotate a workpiece about an axis of rotation with an adjustable rotational speed progression, and an ultra-short pulse laser for generating laser pulses, the laser being arranged such that material of the workpiece is removed by means of the laser pulses. The device is configured to adjust the rotational speed progression based on geometry data of a specified geometry and/or a specified surface quality characteristic value representative of a corresponding surface quality.

Abstract: A method for producing a piezo actuator includes: providing a green stack including alternately successive green films and inner electrode layers; forming trenches on the outside green stack in areas in which the inner electrode layers are intended to be electrically insulated from the corresponding outer electrodes, the trenches shortening the inner electrode layers from the outside of the green stack toward the inside; filling the trenches with an electrically insulating slurry; further processing the green stack, including filling the trenches with slurry, such that the green films produce piezo electric layers and the green stack produces a piezo stack; mounting two outer electrodes on the outside of the piezo stack, such that the two outer electrodes are alternately electrically connected to the inner electrode layers. The trenches may be filled with the slurry using one of the following methods; screen printing, immersion, spraying, or vacuum infiltration.

Abstract: A method and related device for machining a workpiece is provided, wherein material of the workpiece is removed in a machining region by a non-contact removal process. The workpiece is excited by means of an excitation oscillation having a natural resonant frequency of the workpiece, or a composite comprising the workpiece and a coupling element that is rigidly coupled to the workpiece is excited by means of an excitation oscillation having a joint natural resonant frequency of the workpiece and the coupling element. The natural resonant frequency is selected such that in the machining region an oscillation occurs that has a maximum oscillation amplitude in relation to the excitation amplitude of the excitation oscillation.

Abstract: A method is provided for making electrical contact with an electronic component in the form of a stack formed from a plurality of material layers, which react upon application of an electric field, and a plurality of electrode layers, wherein each material layer is arranged between two of the electrode layers. An insulation structure is generated on at least one stack circumferential region of the stack, which exposes each second electrode layer of the at least one stack circumferential region for electrical contact to be made. Also, a contact-making structure is applied to the at least one stack circumferential region which is provided with the insulation structure. Before the step of generating the contact-making structure, the material layers are partially removed by a material-removing method such that the electrode layers are exposed close to the surface.

Abstract: Before being fed into a pipe, particularly a network of pipes for the supply of consumers, gas, preferably natural gas, is continuously conditioned. The pressurized gas is removed from a reservoir, expanded, and heated to a predefined temperature before or after the expansion thereof in that a branched-off partial flow of the fed-out natural gas is mixed with oxygen and the resulting burnable gas is catalytically burned. The fed-out gas is heated with the thermal energy that is produced. For this purpose, a partial exhaust gas flow is branched off from a hot exhaust gas flow released during the catalytic combustion and conducted into a first container together with the cold burnable gas.

Abstract: The invention relates to a device for continuously mixing fed-out natural gas with oxygen to produce a burnable gas used for heating the pressurized natural gas before or after the relaxation thereof, comprising a mixing section having connections for a natural gas supply line, an oxygen infeed line, and a burnable gas discharge line. The mixing section is designed as a closed mixing container, which has a mixing chamber, at the center of which forming a mixing zone a distributing pipe for oxygen is disposed that is joined to the connection for oxygen infeed. The mixing chamber is filled completely, and the distributing pipe is filled at least partially, with a packing of ceramic granular material. The mixing chamber of the mixing container is equipped with temperature sensors for temperature measurement. The mixing container is designed as a standing container, which at the bottom has the connection of the natural gas supply and at the top the connection for the burnable gas discharge.

Abstract: A device for continuously conditioning fed-out natural gas prior to feeding the same to supply lines leading to consumers has a mixing station for producing a burnable gas from natural gas and oxygen, a reactor container for a catalytic combustion of an introduced mixture of burnable gas and natural gas, at least one drying station that is connected downstream of an outlet of the reactor container, at least one separator, particularly for water, and at least one expansion fitting for reducing the pressure. The reactor container and separator chamber of the separator are disposed in an enclosed housing. The mixing chamber, into which a first feed line for fed-out cold natural gas opens, is disposed in the housing between the reactor container and the separator chamber.

Abstract: A method for producing a piezo actuator includes: providing a green stack including alternately successive green films and inner electrode layers; forming trenches on the outside green stack in areas in which the inner electrode layers are intended to be electrically insulated from the corresponding outer electrodes, the trenches shortening the inner electrode layers from the outside of the green stack toward the inside; filling the trenches with an electrically insulating slurry; further processing the green stack, including filling the trenches with slurry, such that the green films produce piezo electric layers and the green stack produces a piezo stack; mounting two outer electrodes on the outside of the piezo stack, such that the two outer electrodes are alternately electrically connected to the inner electrode layers. The trenches may be filled with the slurry using one of the following methods; screen printing, immersion, spraying, or vacuum infiltration.

Abstract: A method and related device for machining a workpiece is provided, wherein material of the workpiece is removed in a machining region by a non-contact removal process. The workpiece is excited by means of an excitation oscillation having a natural resonant frequency of the workpiece, or a composite comprising the workpiece and a coupling element that is rigidly coupled to the workpiece is excited by means of an excitation oscillation having a joint natural resonant frequency of the workpiece and the coupling element. The natural resonant frequency is selected such that in the machining region an oscillation occurs that has a maximum oscillation amplitude in relation to the excitation amplitude of the excitation oscillation.

Abstract: The embodiments relate to a piezoelectric component including at least one fully active piezoelectric element comprising electrode layers and piezoelectric layers arranged therebetween. The electrode layers are conveyed to a lateral edge of the piezoelectric element and contacted there. The external electrode is attached in a structured fashion for electrical contacting and/or a structured external electrode is made available: The external electrode essentially includes two components, namely the contacting field and the contacting path. In the event of several piezoelectric elements (piezoelectric actuator in multilayer structure) stacked one above the other, the contacting path functions as a collector electrode, which connects the contacting fields of the piezoelectric elements to one another. The insulation path exists for the electrical insulation of the contacting path from electrode layers which are not to be contacted.

Abstract: The invention relates to a device for continuously mixing fed-out natural gas with oxygen to produce a burnable gas used for heating the pressurized natural gas before or after the relaxation thereof, comprising a mixing section having connections for a natural gas supply line, an oxygen infeed line, and a burnable gas discharge line. The mixing section is designed as a closed mixing container, which has a mixing chamber, at the center of which forming a mixing zone a distributing pipe for oxygen is disposed that is joined to the connection for oxygen infeed. The mixing chamber is filled completely, and the distributing pipe is filled at least partially, with a packing of ceramic granular material. The mixing chamber of the mixing container is equipped with temperature sensors for temperature measurement. The mixing container is designed as a standing container, which at the bottom has the connection of the natural gas supply and at the top the connection for the burnable gas discharge.

Abstract: The invention relates to a device for continuously preheating a mixture of burnable gas, particularly natural gas and oxygen, prior to the catalytic combustion thereof, wherein the combustion heat thereof can be used to heat fed-out natural gas, before or after the expansion thereof and supply to consumers, in order to compensate for the Joule-Thomson effect. The device is designed as a jet pump having a propelling nozzle and a diffuser aligned therewith. The propelling nozzle is the inlet for the mixture into a mixing chamber disposed in the pump housing, a suction line for the natural gas heated by means of catalytic combustion being connected to the chamber. The diffuser is part of an outlet of the mixing chamber of the jet pump. The propelling nozzle and the diffuser are disposed such that they can be moved relative to one another in the pump housing.

Abstract: Before being fed into a pipe, particularly a network of pipes for the supply of consumers, gas, preferably natural gas, is continuously conditioned. The pressurized gas is removed from a reservoir, expanded, and heated to a predefined temperature before or after the expansion thereof in that a branched-off partial flow of the fed-out natural gas is mixed with oxygen and the resulting burnable gas is catalytically burned. The fed-out gas is heated with the thermal energy that is produced. For this purpose, a partial exhaust gas flow is branched off from a hot exhaust gas flow released during the catalytic combustion and conducted into a first container together with the cold burnable gas.

Abstract: In a device for continuously conditioning fed-out natural gas prior to feeding the same to supply lines leading to consumers, comprising a mixing station for producing a burnable gas from natural gas and oxygen, a reactor container for a catalytic combustion of an introduced mixture of burnable gas and natural gas, at least one drying station that is connected downstream of an outlet of the reactor container and has at least one separator, particularly for water, and further comprising at least one expansion fitting for reducing the pressure, it is provided to dispose the reactor container and at least one separator chamber of the separator in an enclosed housing. A mixing chamber, into which a first feed line for fed-out cold natural gas opens, is disposed in the housing between the reactor container and the separator chamber. A transition is provided for the direct entry of the heated natural gas flowing out of the reactor container into the mixing chamber.

Abstract: According to various production methods for producing a piezoceramic multilayer actuator, in the course of the production method, multilayer locks (10) are electrochemically or mechanically processed in such a way that a recess structure is obtained. The lateral surfaces (22; 24) of the electrodes (20) inside these recesses are electrically insulated using the slip casting method in order to be able to contact the remaining electrodes by imprinting an outer metallization.

Abstract: The embodiments relate to a piezoelectric component including at least one fully active piezoelectric element comprising electrode layers and piezoelectric layers arranged therebetween. The electrode layers are conveyed to a lateral edge of the piezoelectric element and contacted there. The external electrode is attached in a structured fashion for electrical contacting and/or a structured external electrode is made available: The external electrode essentially includes two components, namely the contacting field and the contacting path. In the event of several piezoelectric elements (piezoelectric actuator in multilayer structure) stacked one above the other, the contacting path functions as a collector electrode, which connects the contacting fields of the piezoelectric elements to one another. The insulation path exists for the electrical insulation of the contacting path from electrode layers which are not to be contacted.