Patents by Inventor Klaus Büttner
Klaus Büttner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12003138Abstract: A housing-free dynamoelectric rotary machine includes a stator having a material layer structure which includes a plurality of material layers arranged in a row along a rotation axis. The material layer structure includes a plurality of thickenings and a plurality of slots, with the slots arranged such that each of the slots is arranged between two respective ones of the thickenings. At least one of the slots is designed to receive a slot wedge, with a respective one of the thickenings being designed to fasten the slot wedge. An end element is arranged on an axial end of the stator and includes a connection box for supply with electrical energy. A connecting element connects the end element to the stator and is connected to the slot wedge.Type: GrantFiled: April 1, 2021Date of Patent: June 4, 2024Assignee: Innomotics GmbHInventors: Klaus Büttner, Reiner Grillenberger, Klaus Kirchner, Matthias Warmuth
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Patent number: 12003150Abstract: A stator of a rotary electrical machine includes a laminated core having grooves, windings inserted into the grooves for forming a multi-phase winding system, and an insulating layer made of plastic and sprayed between partial winding overhangs of the windings of phases inserted immediately one after the other. The insulating layer is formed as a mesh-like structure having junctions and brace-like connections running between the junctions.Type: GrantFiled: July 24, 2019Date of Patent: June 4, 2024Assignee: Innomotics GmbHInventors: Klaus Büttner, Tobias Katzenberger, Bastian Plochmann, Matthias Warmuth
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Publication number: 20240146163Abstract: In a method for producing a short-circuit rotor of an asynchronous machine, a laminated core is formed with substantially axial slots and with an axial skew over an axial length of the laminated core, which axial skew is 0.3 to 3 times a slot pitch of the rotor. Conductor bars made of a first conductive material are inserted into the slots such that the conductor bars protrude out of end faces of the laminated core in a skewed manner out of the laminated core to define overhangs. At least the overhangs are coated with a galvanic layer of aluminum, tin or a solderable alloy to provide a lubricating layer. Individual laminations of a second conductive material are axially pressed onto the conductor bars such that the individual laminations short-circuit the conductor bars and form a short-circuit ring, which is composed of multiple individual laminations.Type: ApplicationFiled: March 1, 2022Publication date: May 2, 2024Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Publication number: 20240033183Abstract: A valve unit for a system for producing a medical preparation for parenteral nutrition is described. The valve unit includes a housing having a duct extending along a longitudinal access of housing, upper inlets and lower inlets, and an outlet in fluid communication with each of the inlets via the duct. The valve unit includes valves that alternately connect a respective upper inlet of the upper inlets and a respective lower inlet of the lower inlets to the duct. Each of the valves have a first passage that fluidly connects the respective upper inlet and the duct, and a second passage that fluidly connects the respective lower inlet and the duct.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Inventors: Martin Biehl, Michael Hock, Lothar Tiedemann, Klaus Buettner
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Publication number: 20230361652Abstract: A self-ventilated electrodynamic rotary machine includes a housing configured to at least partially axially enclose the rotary machine, and a fan connected in a rotationally fixed manner to a shaft on a ventilation side of the rotary machine and configured to generate a main cooling air flow when the shaft rotates about an axis. The fan includes a cover which is configured to direct the main cooling air flow onto the housing and is structured to improve cooling of the housing. An air guide element is detachably fixed to the cover to generate an additional cooling air flow. The air guide element, when viewed in a circumferential direction, has a segmented design and is configured as separate part for retrofitting to the cover depending on a thermal requirement of the rotary machine.Type: ApplicationFiled: July 20, 2021Publication date: November 9, 2023Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, REINER GRILLENBERGER, TOBIAS KATZENBERGER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Patent number: 11793722Abstract: The invention relates to a valve unit for a system for producing a parenteral nutrition, in which a three-way valve is used for respectively two connections to a source container. The valve unit is a component which is mounted on the system and can be removed again following use. The valve unit is in particular provided as a replaceable disposable component.Type: GrantFiled: August 22, 2018Date of Patent: October 24, 2023Assignee: Fresenius Kabi Deutschland GmbHInventors: Martin Biehl, Michael Hock, Lothar Tiedemann, Klaus Buettner
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Publication number: 20230275475Abstract: A housing-free dynamoelectric rotary machine includes a stator having a material layer structure which includes a plurality of material layers arranged in a row along a rotation axis. The material layer structure includes a plurality of thickenings and a plurality of slots, with the slots arranged such that each of the slots is arranged between two respective ones of the thickenings. At least one of the slots is designed to receive a slot wedge, with a respective one of the thickenings being designed to fasten the slot wedge. An end element is arranged on an axial end of the stator and includes a connection box for supply with electrical energy. A connecting element connects the end element to the stator and is connected to the slot wedge.Type: ApplicationFiled: April 1, 2021Publication date: August 31, 2023Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, REINER GRILLENBERGER, KLAUS KIRCHNER, MATTHlAS WARMUTH
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Patent number: 11705765Abstract: An electrical machine includes a housing, a stator, and a rotor. The rotor is mounted relative to the stator for rotation about an axis of rotation. The stator radially outwardly surrounds the rotor. The housing is shrunk onto the stator from radially outside. On its radially outer periphery, the stator includes spring dements which are at least partially elastically deflected radially inwards during shrinking of the housing onto the stator such that the projections rest against the housing with a spring force.Type: GrantFiled: November 15, 2018Date of Patent: July 18, 2023Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth
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Publication number: 20230208259Abstract: A method for producing a rotor of an asynchronous machine includes providing a rotor lamination stack having grooves extending parallel to a rotor axis of the rotor, inserting conductor rods into the grooves such that the conductor rods protrude from end faces of the rotor lamination stack, wherein a twisting tool is placed at each of the end faces onto the protruding conductor rods and the twisting tools are twisted relative to each other, where the parallel grooves with the corresponding conductor rods also extend obliquely after the twisting and where the twisting tools are formed such that the protruding conductor rods remain parallel to the rotor axis when an oblique profile of the stack is produced, removing the twisting tools, providing first and second short-circuit washers, and axially pressing the short-circuit washers onto the conductor rods projecting perpendicularly from the end face of the rotor lamination stack.Type: ApplicationFiled: May 12, 2021Publication date: June 29, 2023Inventors: Klaus BÜTTNER, Klaus KIRCHNER, Matthias WARMUTH
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Publication number: 20230142750Abstract: A rotor of a dynamo-electric rotary machine includes a rotor core arranged concentrically to a rotor axis and including slots filled with electrically conductive material. A front ring is arranged at a front axial end of the slots and includes electrically conductive material, and a rear ring is arranged at a rear axial end of the slots and includes electrically conductive material. A rotor-core-distal surface of the front ring and/or rear ring has a bevel in axial direction from an outer circumference to an inner circumference, with the bevel defined by a bevel angle having a value of 3° to 30°. A support element is at least partially connected to the front and/or rear ring with a positive fit and pressed thereon axially, with the support element being supported on a shaft and having a radial end which terminates at a radial end of the front and/or rear ring.Type: ApplicationFiled: February 17, 2021Publication date: May 11, 2023Applicants: Siemens Aktiengesellschaft, Valeo eAutomotive Germany GmbHInventors: Mario BÜTTNER, KLAUS BÜTTNER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Publication number: 20230108171Abstract: In a method for impregnating, strengthening or electrically insulating a body supporting single or multi-layer windings, in particular for an electric machine, the body supporting the windings is submerged into a multi-component resin system or is sprinkled with the multi-component resin system or is sprayed with the multi-component resin system.Type: ApplicationFiled: January 13, 2021Publication date: April 6, 2023Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, TOBIAS KATZENBERGER, KLAUS KIRCHNER, BASTIAN PLOCHMANN, MATTHIAS WARMUTH
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Publication number: 20230032311Abstract: A component for an electric machine includes a flat region in which an electric line runs when the component is integrated into the electric machine and which includes a sharp edged structure. A polymer layer adheres to the flat region without further aid such as to mask the sharp-edged structure and thereby protect from damage the electric line on the flat region. The polymer layer is made of cured plastic adhesive and jetted onto the flat region in the form of threads, such that the threads are spin-coated on top of one another in the form of overlapping loops and form a network structure which spans the sharp-edged structure.Type: ApplicationFiled: December 14, 2020Publication date: February 2, 2023Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, TOBIAS KATZENBERGER, KLAUS KIRCHNER, BASTIAN PLOCHMANN, MATTHIAS WARMUTH
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Publication number: 20230026832Abstract: A conductor bar of a cage rotor of an asynchronous machine has a longitudinal extension and includes first and second sections in the longitudinal extension. The first section has a hardness which is lower than a hardness of the second section and is realized through soft annealing, brief inductive heating or heating by a flame so as to enable a compression of the first section of the conductor bar by way of axial pressure after axially joining the conductor bar in a slot of a magnetically conductive body of the cage rotor, with the first section abutting an inner wall of the slot of magnetically conductive body of the cage rotor.Type: ApplicationFiled: September 25, 2020Publication date: January 26, 2023Applicant: Siemens AktiengesellschaftInventors: KLÄUS BÜTTNER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Patent number: 11522424Abstract: A stator of an electric machine includes a laminated core having slots for receiving windings of a multiphase winding system. The windings have winding ends, which are encased with an insulator across a partial length. In order to encase the winding ends with the insulator, a strand of a thermoplastic material is extruded onto the winding ends via a nozzle. During extrusion, the nozzle is moved relative to the winding end along the longitudinal extent thereof and an oscillating movement of the nozzle transversely to the longitudinal extent of the winding end overlays the movement along the longitudinal extent. As a result the thermoplastic material lies on the winding end and around the respective winding end in the form of loops.Type: GrantFiled: July 30, 2020Date of Patent: December 6, 2022Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Klaus Büttner, Tobias Katzenberger, Klaus Kirchner, Bastian Plochmann, Matthias Warmuth
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Publication number: 20220320975Abstract: In a method for producing a squirrel-cage rotor of an asynchronous machine, conductor bars of a first conductive material are inserted into slots of a magnetically conductive body such as to project out of at least one end side to form a projection. A short-circuiting disc of a second conductive material is positioned under pressure on the projection with a clearance fit of approximately 0.1 mm relative to a radially outwardly open recess of the short-circuiting disc. The short-circuiting disc is heated while the conductor bars virtually contact the short-circuiting disc. At least the projection of the conductor bars is coated with a third material at a layer thickness to form an alloy with the first and second materials after heating so that the third material is fully dispersed in the first and second materials as a result of the third material being diffused into the first and second materials.Type: ApplicationFiled: July 17, 2020Publication date: October 6, 2022Applicant: Siemens AktiengesellschaftInventors: Klaus BÜTTNER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Publication number: 20220077737Abstract: A lamination of a rotor of a rotary dynamo-electric machine includes a shaft bore with a radius, at least two pull-through grooves, and two intermediate space recesses. Each of the pull-through grooves has a lamination tongue facing radially inwards towards an axis such that the lamination tongue ends facing radially inwards lie on a radius which is smaller than the radius defined by the shaft bore.Type: ApplicationFiled: December 16, 2019Publication date: March 10, 2022Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, KLAUS KIRCHNER, MATTHIAS WARMUTH
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Publication number: 20220045583Abstract: Disclosed Is a method for pulling a stator winding system of an electric machine into a stator lamination stack of the electric machine and to a winding tool, with the stator lamination stack having stator grooves which run parallel to a rotation axis of the electric machine and are distributed in a circle around the rotation axis and open thereto and which have on an end facing the rotation axis a gap region which is narrowed relative to the rest of the stator groove. Windings are arranged in the stator grooves, and winding overhangs, as seen in the direction of the rotation axis, protrude from the stator lamination stack at the two axial ends thereof, with the windings formed in the stator grooves as laid windings. The stator lamination stack has no guide structures on the two axial ends for guiding the individual turns of the windings.Type: ApplicationFiled: September 11, 2019Publication date: February 10, 2022Applicant: Siemens AktiengesellschaftInventors: KLAUS BÜTTNER, TOBIAS KATZENBERGER, KLAUS KIRCHNER, BASTIAN PLOCHMANN, MATTHIAS WARMUTH
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Patent number: 11183909Abstract: The invention relates to a squirrel-cage rotor (3) of an asynchronous machine (1) having electrical conductors, which are provided in substantially axially extending grooves of a laminated core (5). On each end face of the laminated core (5), at least one short-circuit ring is provided, which electrically connects at least a predetermined number of the electrical conductors, wherein the short-circuit ring has a reinforcement (24) made of comparatively high-strength material.Type: GrantFiled: August 4, 2017Date of Patent: November 23, 2021Assignee: Siemens AktiengesellschaftInventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth
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Publication number: 20210313865Abstract: A stator of a rotary electrical machine includes a laminated core having grooves, windings inserted into the grooves for forming a multi-phase winding system, and an insulating layer made of plastic and sprayed between partial winding overhangs of the windings of phases inserted immediately one after the other. The insulating layer is formed as a mesh-like structure having junctions and brace-like connections running between the junctions.Type: ApplicationFiled: July 24, 2019Publication date: October 7, 2021Applicant: Siemens AktiengeselischaftInventors: KLAUS BÜTTNER, TOBIAS KATZENBERGER, BASTIAN PLOCHMANN, MATTHIAS WARMUTH
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Patent number: 11043868Abstract: A squirrel cage rotor for an asynchronous machine includes a magnetically conductive main body which is mounted for rotation about an axis and includes electric conductors in substantially axially extending slots. The electric conductors are electrically contacted by short-circuit rings which are located on end faces of the magnetic main body and configured as a thermosiphon.Type: GrantFiled: May 5, 2017Date of Patent: June 22, 2021Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth