Patent application number | Description | Published |
20080203853 | Method For Producing a Monolithic Piezo Actuator With Stack Elements, Monilithic Piezo Actuator With Stack Elements, and Use of the Piezo Actuator - A piezo actuator has a stack element and at least one further stack element, wherein each of the stack elements has stacked piezoceramic layers and electrode layers arranged between the piezoceramic layers, each of the electrode layers extends to at least one of at least two lateral surface sections of the stack element which have external metallizations on them, and are connected to the electrode layers such that adjacently stacked electrode layers can have different electrical potentials applied to them indirectly via the external metallizations, the stack elements are arranged above one another to form a monolithic total stack, and connected to one another by at least one connecting layer. The following steps are provided: a) provision of the total stack and b) production of a load-relieving crack in the connecting layer. An electrical connector in the form of a wire can be fitted on the relevant external metallization regions. | 08-28-2008 |
20080203857 | Monolithic Piezoactuator With Rotation of the Polarisation in the Transition Region and Use of Said Piezoactuator - A piezoactuator has at least one piezoelectric-active partial stack with piezoceramic layers arranged one over the other with piezoceramic material and electrode layers arranged between the piezoceramic layers, at least one piezoelectric-inactive terminating region arranged over the partial stack and at least one transition region between the partial stack and the terminating region, the partial stack, the terminating region and the transition region all connected together to give a monolithic complete stack. The transition region has a transition region stack with piezoceramic layers arranged one over the other and electrode layers arranged between the piezoceramic layers both have a form and are arranged on each other such that, in the stack direction of the transition region stack, from piezoceramic layer to piezoceramic layer there is a successive rotation about a main axis of the polarity and/or a rotation of the main axis of the electric control is provided. | 08-28-2008 |
20080218028 | Piezoceramic Multilayer Actuator and Method of Manufacturing a Piezoceramic Multilayer Actuator - In a method of manufacturing a piezoceramic multilayer actuator ( | 09-11-2008 |
20080218029 | PIEZOCERAMIC MULTILAYER ACTUATOR AND METHOD OF MANUFACTURING A PIEZOCERAMIC MULTILAYER ACTUATOR - A piezoceramic multilayer actuator ( | 09-11-2008 |
20080224572 | PIEZOCERAMIC MULTILAYER ACTUATOR AND METHOD OF MANUFACTURING A PIEZOCERAMIC MULTILAYER ACTUATOR - A piezoceramic multilayer actuator ( | 09-18-2008 |
20080245991 | Nickel-Molybdenum-Doped Lead Zirconate Titanate, Method for the Production of a Piezoceramic Component Using Said Lead Zirconate Titanate, and Use of the Piezoceramic Component - A piezoceramic composition of a calculated empirical formula Pb | 10-09-2008 |
20080282536 | Lead Zirconate Titanate with Iron/Tungstein Doping, Method of Producing a Piezoceramic Material with the Lead Zirconate Titanate, and Use of the Piezoceramic Material - A piezoceramic composition has a nominal empirical formula of Pb | 11-20-2008 |
20080284283 | Piezo Stack With Novel Passivation - An electrical passivation of surfaces of an electronic component which have electrodes is intended to be carried out in simple and effective fashion and also to be stable in chemically and thermally unfavourable environments. For the passivation, a plastic film, for example made of epoxy, is laminated onto the surface. Applications are in fuel injection systems, for example. | 11-20-2008 |
20090015109 | Monolithic Piezoelectric Component Comprising a Mechanical Uncoupling, Method for Producing Same and Use Thereof - A piezoelectric component includes at least one monolithic piezo element, having at least a first electrode layer, at least a second electrode layer and at least one piezoceramic layer located between the electrode layers. The piezoelectric component is characterized in that at least between one of the electrode layers and the piezoceramic layer is provided an uncoupling layer which is in direct contact with at least one of the layers for mechanically uncoupling the electrode layer and the piezoceramic layer. A method for producing such a piezoelectric component is disclosed. The piezoelectric component is used in automotive technique for controlling an internal combustion engine injection valve. | 01-15-2009 |
20090025201 | CONTACT MAT FOR AN ACTUATOR, AND ASSOCIATED PRODUCTION METHOD - A contact mat ( | 01-29-2009 |
20090261730 | High-Pressure Discharge Lamp With Improved Ignitability and High-Voltage Pulse Generator - High pressure discharge lamp ( | 10-22-2009 |
20090278423 | PIEZOELECTRIC ACTUATOR WITH GRADIENT ENCAPSULATION LAYER AND METHOD FOR THE PRODUCTION THEREOF - In a method for the production of a gradient encapsulation layer | 11-12-2009 |
20090302713 | PIEZO ACTUATOR COMPRISING A MULTILAYER ENCAPSULATION, AND METHOD FOR THE PRODUCTION THEREOF - In a method for producing a multilayer encapsulation ( | 12-10-2009 |
20090320255 | PIEZOCERAMIC MULTILAYER ACTUATOR AND METHOD FOR THE PRODUCTION THEREOF - According to various production methods for producing a piezoceramic multilayer actuator, in the course of the production method, multilayer locks ( | 12-31-2009 |
20100019620 | PIEZOCERAMIC MULTILAYER ACTUATOR AND METHOD FOR ITS PRODUCTION - In a piezoelectric multilayer actuator ( | 01-28-2010 |
20100026144 | PIEZOELECTRIC COMPONENT COMPRISING SECURITY LAYER AND METHOD FOR THE PRODUCTION THEREOF - A piezoelectric component with a monolithic stack has piezoceramic layers and electrode layers arranged alternately one on top of the other, at least one porous security layer arranged in the stack for the formation of a crack if mechanical overload of the stack occurs, at least one outer electrode arranged at a lateral surface section for electric contacting of the electrode layers and a plastic sheath of the stack for protecting the stack, wherein the plastic sheath has silicon. The piezoelectric component is characterized in that a coating of the outer electrode, has silicon-free polymer, is arranged between the outer electrode and the plastic sheath. By coating the plating of the outer electrode, the area of the security layer present directly under the plating is protected from silicon component deposits. The piezoelectric component is used for the control of valves, particularly of injection valves of internal combustion engines. | 02-04-2010 |
20100038456 | METHOD AND SYSTEM FOR SEPARATING A MULTIPLICITY OF CERAMIC COMPONENTS FROM A COMPONENT BLOCK - In a method for detaching a plurality of ceramic components ( | 02-18-2010 |
20100043769 | WIRE SAW AND METHOD FOR PRODUCING A WIRE SAW - A wire saw (S) for separating a plurality of ceramic components ( | 02-25-2010 |
20100060110 | Multi-Layer Piezoelectric Element and Injection Apparatus Employing The Same - A multi-layer piezoelectric element which undergo less change in the amount of displacement and shows high durability during continuous operation under a high voltage and pressure over a long period are provided. | 03-11-2010 |
20100066212 | PIEZOELECTRIC COMPONENT WITH DIRECTLY STRUCTURED EXTERNAL CONTACTING, METHOD FOR MANUFACTURING THE COMPONENT AND USE OF SAID COMPONENT - 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. A reliable contacting of the electrode layers is possible with the structure according to the invention. A fully active, piezoceramic multilayer actuator with the described contacting is used in automotive engineering for activating fuel injection valves. | 03-18-2010 |
20100090033 | Multi-Layer Piezoelectric Element, Injection Apparatus Using the Same and Method of Multi-Layer Piezoelectric Element - A multi-layer piezoelectric element having higher durability which experience less decrease in the amount of displacement even when operated continuously over a long period of time under a high pressure and a high voltage is provided. The multi-layer piezoelectric element comprises a plurality of piezoelectric layers and a plurality of internal electrode layers, wherein the piezoelectric layers and the internal electrode layers are stacked alternately one on another, and at least one of the plurality of internal electrode layers contains at least one nitride, titanium nitride or zirconium nitride. | 04-15-2010 |
20100102138 | PIEZOELECTRIC COMPONENT COMPRISING A SECURITY LAYER AND AN INFILTRATION BARRIER AND A METHOD FOR THE PRODUCTION THEREOF - A piezoelectric component with a monolithic stack, has electrode layers and piezoceramic layers arranged alternately one on top of the other, the piezoceramic layers have a piezoceramic, and having at least one porous security layer arranged in the stack for the formation of a crack if mechanical overload of the stack should occur. The piezoelectric component has an infiltration barrier arranged between the security layer and a lateral surface section of the stack for suppressing the penetration of a foreign substance into the security layer. The piezoelectric component can be as a piezoactuator for controlling a valve, particularly a valve of an internal combustion engine. | 04-29-2010 |
20100133957 | PIEZO ACTUATOR WITH INCREASED DISPLACEMENT CAPACITY - The invention relates to a high-lifting capacity piezoelectric actuator ( | 06-03-2010 |
20100180867 | LEAD-ZIRCONATE-TITANATE CERAMIC HAVING TEXTURING, METHOD FOR THE PRODUCTION OF THE CERAMIC, AND USE OF THE CERAMIC - A lead-zirconate-titanate ceramic has texturing, with textured nuclei containing barium-titanate crystallites, wherein the barium-titanate crystallites have a substantially equal crystal characteristic, including form anisotropy, and an orientation in the lead-zirconate-titanate ceramic. A method for the production of a PZT ceramic has the following steps: a) providing the barium-titanate crystallite, b) mixing the barium-titanate crystallite and a starting material of the lead-zirconate-titanate into a ceramic green body such that the barium-titanate crystallites in the green body have an orientation, and c) heat-treating the green body. The heat treatment has calcination and sintering of the piezo-ceramic composition. The barium-titanate crystallites are used in a “template grain growth process” as crystallization nuclei. The piezo-ceramic component is, for example, an ultrasonic transducer or a piezo-ceramic bender actuator. In particular, the piezo-ceramic component is a multilayer piezo actuator, which is used to actuate a fuel valve of an internal combustion engine of a motor vehicle. | 07-22-2010 |
20100194247 | PIEZOCERAMIC MULTILAYER ACTUATOR WITH HIGH RELIABILITY - A piezoceramic multilayer actuator has a first sub-stack ( | 08-05-2010 |
20100244636 | PIEZOELECTRIC COMPONENT WITH OUTER CONTACTING, HAVING GAS-PHASE DEPOSITION, METHOD FOR MANUFACTURING THE COMPONENT AND USE OF THE COMPONENT - A piezoelectric component with at least one fully active piezoelement has electrode layers and interposed piezoelectric layers. guided to a lateral edge of the piezoelement and contacted there. An insulating layer applied for electric contacting has an electric through-plating. An electrically conductive gas-phase deposition layer is applied directly to the electrode layer guided up to the lateral surface of the piezoelement by way of deposition from the gas phase in order to improve electric contacting. An external electrode is applied to the gas-phase deposition layer. In the case of several superposed stacked piezoelements (piezoactuator in multi-layer design), the external electrode functions as a collector electrode which connects the electrode layers to each other. The structure enables secure contacting of the electrode layers. A fully active piezoceramic multi-layer actuator with the described contacting may be used in automobile technology for activating fuel-injection valves. | 09-30-2010 |
20100327704 | Piezoelectric Actuator Unit and Method for Manufacturing the Same - A piezoelectric actuator unit which undergoes less change in the amount of displacement and shows high durability in continuous operation under a high voltage and a high pressure over a long period of time is provided. | 12-30-2010 |
20110017177 | Monolithic piezoactuator with transition region and safety layer, and use of the piezoactuator - A piezoactuator of monolithic multilayer design with an overall stack has at least one piezoelectrically active partial stack with piezoceramic layers arranged one above another and electrode layers arranged between these layers, at least one piezoelectrically inactive terminating region arranged above the partial stack, and at least one transition region arranged between the partial stack and the terminating region. The transition region has piezoceramic layers arranged one above another and electrode layers arranged between the piezoceramic layers and the piezoceramic layers and the electrode layers are arranged on one another such that there the electric fields that can be coupled into the piezoceramic layers are changed by electrical driving of the electrode layers successively in the transition region stack direction from piezoceramic layer to piezoceramic layer, and the partial stack has a safety layer towards the transition region, wherein a crack is preferably formed in the case of mechanical overloading. | 01-27-2011 |
20110138593 | METHOD FOR PRODUCING A MONOLITHIC PIEZO ACTUATOR WITH STACK ELEMENTS, MONOLITHIC PIEZO ACTUATOR WITH STACK ELEMENTS, AND USE OF THE PIEZO ACTUATOR - A piezo actuator has a stack element and at least one further stack element, wherein each of the stack elements has stacked piezoceramic layers and electrode layers arranged between the piezoceramic layers, each of the electrode layers extends to at least one of at least two lateral surface sections of the stack element which have external metallizations on them, and are connected to the electrode layers such that adjacently stacked electrode layers can have different electrical potentials applied to them indirectly via the external metallizations, the stack elements are arranged above one another to form a monolithic total stack, and connected to one another by at least one connecting layer. The following steps are provided: a) provision of the total stack and b) production of a load-relieving crack in the connecting layer. An electrical connector in the form of a wire can be fitted on the relevant external metallization regions. | 06-16-2011 |
20120229026 | HIGH-PRESSURE DISCHARGE LAMP WITH IMPROVED IGNITABILITY AND HIGH-VOLTAGE PULSE GENERATOR - High pressure discharge lamp ( | 09-13-2012 |
20130077444 | DEVICE AND METHOD TO DETERMINE THE POSITION OF A COMPONENT THAT IS MOVEABLE IN A LINEAR MANNER ALONG AN ASSIGNED AXIS - A device and a method to determine a position of a component that is moveable in a linear manner along an assigned axis are provided. A reference element that extends in a direction of the assigned axis is assigned to the component. The component may be brought into mechanical contact with the reference element. A respective piezo transducer is arranged on the reference element to generate and receive vibrations in a material used for the reference element. | 03-28-2013 |
20130127302 | Method for Producing a Piezo Actuator and Piezo Actuator - 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. | 05-23-2013 |
20130260026 | Method For Manufacturing A Thin Film On A Substrate - A method for maufacturing a thin film on a substrate may include: coupling the substrate to a pretensioning facility such that the substrate with the pretensioning facility is isotropically extended in the surface, wherein the substrate is held elastically under pressure with a predetermined pretension; depositing a thin film material on the substrate with a deposition method, in which by applying heat to the thin film material, this is deposited on the substrate so that a thin film with the thin film material is embodied on the substrate; decoupling the substrate from the pretensioning facility; cooling the thin film accompanied by a shrinkage, wherein the predetermined pretension is at least high enough that the appearance of a tensile stress in the thin film is prevented in the case of shrinkage. | 10-03-2013 |
20130299862 | Luminescence Conversion Element, Method for the Manufacture Thereof and Optoelectronic Component Having a Luminescence Conversion Element - A method for manufacturing a ceramic luminescence conversion element includes providing a shaped body having a first main surface, a second main surface and a first lateral surface. The shaped body includes a ceramic material and a luminescence conversion substance. The first main surface and/or the second main surface of the shaped body is/are machined using a patterning method, so that at least one first machined area and at least one unmachined area are formed. The first machined area extends essentially parallel to the first lateral surface. Singularization is performed to produce a plurality of luminescence conversion elements by means of cuts that are made in the machined main surface of the machined shaped body essentially at right angles to the first lateral surface. | 11-14-2013 |
20140001503 | Conversion Component | 01-02-2014 |
20140205918 | STORAGE ELEMENT AND METHOD FOR THE PRODUCTION THEREOF - A storage element for a solid electrolyte battery is provided. The storage element has a main member having a porous matrix of sintered ceramic particles in which particles that are made of a metal and/or a metal oxide and jointly form a redox couple are embedded. Along a preferred direction, the storage element has a certain concentration gradient of the particles made of the metal and/or the metal oxide and/or a certain gradient of a pore density and/or a pore size, thereby allowing the diffusion behavior of oxygen ions within the main member to be controlled and thus the charge and discharge kinetics, the life and the capacity of the battery to be improved. | 07-24-2014 |
20140220443 | STORAGE ELEMENT AND PROCESS FOR THE PRODUCTION THEREOF - A storage element for a solid electrolyte battery is provided, having a main member of a porous ceramic matrix in which particles, that are made of a metal and/or a metal oxide and jointly form a redox couple, are embedded, the particles having a lamellar shape. | 08-07-2014 |
20140220447 | STORAGE ELEMENT FOR A SOLID ELECTROLYTE BATTERY - A storage element for a solid electrolyte battery is provided, having a main member including a porous ceramic matrix in which particles that are made of a first metal and/or a metal oxide and jointly form a redox couple are embedded. The storage element further includes particles made of another metal and/or an associated metal oxide, the other metal being electrochemically more noble than the first metal. | 08-07-2014 |
20140295297 | STORAGE ELEMENT FOR A SOLID ELECTROLYTE ENERGY STORE - A storage element for a solid electrolyte energy store and a method of producing a storage element are provided. The storage element has a three-dimensional grid structure made of a material that comprises an electron-conducting redox pair. | 10-02-2014 |
20140306258 | CERAMIC CONVERSION ELEMENT, OPTOELECTRONIC SEMICONDUCTOR COMPONENT COMPRISING A CERAMIC CONVERSION ELEMENT, AND METHOD FOR PRODUCING A CERAMIC CONVERSION ELEMENT - A ceramic conversion element having a multiplicity of columnar regions arranged within a ceramic or vitreous matrix, wherein the columnar regions have a preferential direction which makes an angle of at most 45° with a normal to the main surface of the conversion element, at least either the columnar regions or the matrix convert electromagnetic radiation of a first wavelength range into electromagnetic radiation of a second wavelength range different from the first wavelength range and, the columnar regions are formed by wavelength-converting monocrystalline or ceramic fibers and/or monocrystalline or ceramic platelets, said fibers and/or said platelets are provided with a reflective coating. | 10-16-2014 |
20140319572 | CERAMIC CONVERSION ELEMENT, OPTOELECTRONIC COMPONENT COMPRISING A CERAMIC CONVERSION ELEMENT, AND METHODS FOR PRODUCING A CERAMIC CONVERSION ELEMENT - A ceramic conversion element includes a multiplicity of first regions and a multiplicity of second regions, wherein the first regions vitreous, ceramic or monocrystalline fashion, at least either the first regions or the second regions are columnar and have a preferred direction forming an angle of at most 45° with a normal to a main surface of the conversion element, the first regions convert electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range different from the first wavelength range, the second regions convert electromagnetic radiation in the first wavelength range into electromagnetic radiation in a third wavelength range different from the first and second wavelength ranges, wherein the second regions are formed by a resin into which phosphor particles are embedded. | 10-30-2014 |
20140342217 | STORAGE ELEMENT - A storage element for a solid-electrolyte battery is provided, having a main body which is composed of a porous matrix of sintered ceramic particles, and also having a redox system which is composed of a first metal and/or at least one oxide of the first metal, wherein a basic composition of the storage element comprises at least one further oxide from the group comprising Y2O3, MgO, Gd2O3, WO3, ZnO, MnO which is suitable for forming an oxidic mixed phase with the first metal and/or the at least one oxide of the first metal. | 11-20-2014 |