Patents by Inventor Bertram Sugg
Bertram Sugg 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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Publication number: 20090323246Abstract: A method and a device for triggering an injector are described, allowing expansion of the metering range of the injector. The injector is triggered by a trigger voltage that is adjusted according to a predefined voltage for opening the injector, the trigger voltage being first increased to open the injector, starting from the predefined voltage, and then reduced after a predefined time. The predefined time is selected in such a way that the energy stored in an energy accumulator mechanism of the injector has reached a steady-state energy level after the predefined time.Type: ApplicationFiled: May 20, 2009Publication date: December 31, 2009Inventors: Ulrich BRENNER, Georg KURZ, Martin KESSLER, Bertram SUGG
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Publication number: 20090000092Abstract: A piezoelectric actuator comprised of a multi-layered construction of piezoelectric layers interleaved with inner electrodes in which the inner electrodes are contacted on alternating sides by outer electrodes and the regions between the outer electrodes are provided with a suitable insulation has an insulating layer which is comprised of a material with properties virtually identical to those of the piezoelectric layers which is applied to the external surface of the piezoelectric actuator in the region between the outer electrodes.Type: ApplicationFiled: August 29, 2008Publication date: January 1, 2009Inventor: Bertram Sugg
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Patent number: 7402937Abstract: A piezoelectric actuator, for example for actuating a mechanical component, has a multilayered structure of piezoelectric layers and, in a piezoelectrically active region, can be acted on with an electrical voltage by means of internal electrodes that are situated between the layers. The layer structure of the piezoelectric actuator includes inactive regions; at least the top part or bottom part, as an inactive region without internal electrodes, is comprised of a material whose dielectric constant is less than the dielectric constant of the active region.Type: GrantFiled: September 7, 2004Date of Patent: July 22, 2008Assignee: Robert Bosch GmbHInventor: Bertram Sugg
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Patent number: 7271524Abstract: A piezoelectric actuator for actuating a mechanical component in which the piezoelectric actuator is provided with a multilayer construction of piezoelectric layers and can be acted upon by an electrical voltage in a piezoelectrically active region via inner electrodes disposed between the layers. At least one inactive region is present in the layer construction of the piezoelectric actuator, and this region is formed without inner electrodes, of a material whose mechanical and thermal properties match the properties of the active region, including the combination and the interaction of the material of the piezoelectric layers and of the inner electrodes.Type: GrantFiled: June 3, 2003Date of Patent: September 18, 2007Assignee: Robert Bosch GmbHInventor: Bertram Sugg
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Patent number: 7271526Abstract: A piezoelectric actuator for actuating a mechanical component, having a multilayered structure of piezoelectric layers with inner electrodes disposed between them and contacting outer electrodes on alternating sides and the piezoelectric actuator has chamfered corners or edges. In the region of the corners or edges, on the sides of the piezoelectric actuator on which the inner electrodes with alternating polarities are routed to the respective outer electrodes, the inner electrodes have a contour that makes it possible to achieve a lower field intensity between the inner electrodes of alternating polarities in the structure of piezoelectric layers. This is achieved by virtue of the fact that on the side that does not contact the outer electrodes, the edge has an obtuse angle (?) or is rounded.Type: GrantFiled: October 10, 2003Date of Patent: September 18, 2007Assignee: Robert Bosch GmbHInventors: Friedrich Boecking, Ulrich Schoor, Bertram Sugg
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Publication number: 20070046148Abstract: A piezoelectric actuator, for example for actuating a mechanical component, has a multilayered structure of piezoelectric layers and, in a piezoelectrically active region, can be acted on with an electrical voltage by means of internal electrodes that are situated between the layers. The layer structure of the piezoelectric actuator includes inactive regions; at least the top part or bottom part, as an inactive region without internal electrodes, is comprised of a material whose dielectric constant is less than the dielectric constant of the active region.Type: ApplicationFiled: September 7, 2004Publication date: March 1, 2007Inventor: Bertram Sugg
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Publication number: 20060132001Abstract: A piezoelectric actuator comprised of a multi-layered construction of piezoelectric layers interleaved with inner electrodes in which the inner electrodes are contacted on alternating sides by outer electrodes and the regions between the outer electrodes are provided with a suitable insulation has an insulating layer which is comprised of a material with properties virtually identical to those of the piezoelectric layers which is applied to the external surface of the piezoelectric actuator in the region between the outer electrodes.Type: ApplicationFiled: June 26, 2003Publication date: June 22, 2006Inventor: Bertram Sugg
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Publication number: 20060125354Abstract: A piezoelectric actuator for actuating a mechanical component, having a multilayered structure of piezoelectric layers with inner electrodes disposed between them and contacting outer electrodes on alternating sides and the piezoelectric actuator has chamfered corners or edges. In the region of the corners or edges, on the sides of the piezoelectric actuator on which the inner electrodes with alternating polarities are routed to the respective outer electrodes, the inner electrodes have a contour that makes it possible to achieve a lower field intensity between the inner electrodes of alternating polarities in the structure of piezoelectric layers. This is achieved by virtue of the fact that on the side that does not contact the outer electrodes, the edge has an obtuse angle (?) or is rounded.Type: ApplicationFiled: October 10, 2003Publication date: June 15, 2006Inventors: Friedrich Boecking, Ulrich Schoor, Bertram Sugg
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Publication number: 20060108898Abstract: A piezoelectric actuator for actuating a mechanical component in which the piezoelectric actuator is provided with a multilayer construction of piezoelectric layers and can be acted upon by an electrical voltage in a piezoelectrically active region via inner electrodes disposed between the layers. At least one inactive region is present in the layer construction of the piezoelectric actuator, and this region is formed without inner electrodes, of a material whose mechanical and thermal properties match the properties of the active region, including the combination and the interaction of the material of the piezoelectric layers and of the inner electrodes.Type: ApplicationFiled: June 3, 2003Publication date: May 25, 2006Inventor: Bertram Sugg
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Patent number: 6982516Abstract: The invention describes a method and an apparatus for charging a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The method and apparatus are characterized in that the piezoelectric element is activated by an activation voltage having a value set as a function of manufacturing characteristics of the particular piezoelectric element and based upon, for example, a correction value for injected fuel volume.Type: GrantFiled: April 2, 2001Date of Patent: January 3, 2006Assignee: Robert Bosch GmbHInventors: Johannes-Jörg Rueger, Wolfgang Stoecklein, Bertram Sugg
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Patent number: 6705291Abstract: Fuel injection system comprising a piezoelectric element for controlling the amount of injected fuel and further comprising a control unit for determination of a possible fault of the piezoelectric element or of an electric circuitry driving the piezoelectric element based upon a value related to the capacitance of the piezoelectric element.Type: GrantFiled: April 2, 2001Date of Patent: March 16, 2004Assignee: Robert Bosch GmbHInventors: Johannes-Jörg Rueger, Matthias Mrosik, Volker Pitzal, Bertram Sugg, Friedrich Boecking, Udo Schulz
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Patent number: 6495946Abstract: A piezoelectric actuator is described, for example for actuating a mechanical component, in which a piezoelectric element that produces tensile or compressive force acting on an actuation element is provided. The piezoelectric element has a multi-layer structure of piezoelectric layers with internal electrodes (2, 3) disposed between them. The contacting of the internal electrodes (2, 3) on alternate sides takes place by means of external electrodes (10, 11). External electrical connections (12) for the lateral contacting are affixed to an inactive end region (4, 5, 6, 7; 13, 14) in the multi-layer structure, which has a heat-conducting core (5; 14) with a favorable heat conductivity.Type: GrantFiled: February 7, 2001Date of Patent: December 17, 2002Assignee: Robert Bosch GmbHInventors: Rudolf Heinz, Bertram Sugg, Friedrich Boecking
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Publication number: 20020135275Abstract: A piezoelectric actuator, for instance for actuating a mechanical component, is proposed that has a multilayer structure of piezoelectric layers and disposed between them inner electrodes (2, 3) and an alternate-side lateral contacting of the inner electrodes (2, 3) via outer electrodes (4, 5). The outer electrodes (4, 5) are applied in network- or fabric-like fashion, each distributed over one side face, and are contacted at least at some points to the respective inner electrodes (2, 3). The outer electrodes (4, 5) are lengthened past the multilayer structure of piezoelectric layers in such a way that the delivery of the electrical voltage takes place at the extensions (8, 9).Type: ApplicationFiled: April 26, 2002Publication date: September 26, 2002Inventors: Rudolf Heinz, Bertram Sugg, Steffen Jung
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Publication number: 20020000218Abstract: Fuel injection system comprising a piezoelectric element for controlling the amount of injected fuel and further comprising a control unit for determination of a possible fault of the piezoelectric element or of an electric circuitry driving the piezoelectric element based upon a value related to the capacitance of the piezoelectric element.Type: ApplicationFiled: April 2, 2001Publication date: January 3, 2002Inventors: Johannes-Jorg Rueger, Matthias Mrosik, Volker Pitzal, Bertram Sugg, Friedrich Boecking, Udo Schulz
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Patent number: 6333587Abstract: The invention relates to a piezoelectric actuator in particular for actuating control valves or injection valves in internal combustion engines in motor vehicles, having a piezoelectric actuator body, in particular in the form of a multilayer laminate of stacked layers of piezoelectric material and intervening metal or electrically conductive layers acting as electrodes, in which one of the face ends of the actuator body is fixed on a highly heat-conducting or metal actuator base, in which the piezoelectric actuator includes at least one highly heat-conductive cooling body joined highly heat-conductingly to the side faces of the actuator body and to the actuator base.Type: GrantFiled: August 31, 2000Date of Patent: December 25, 2001Assignee: Robert Bosch GmbHInventors: Rudolf Heinz, Bertram Sugg
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Publication number: 20010050512Abstract: The invention describes a method and an apparatus for charging a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The method and apparatus are characterized in that the piezoelectric element is activated by an activation voltage having a value set as a function of manufacturing characteristics of the particular piezoelectric element and based upon, for example, a correction value for injected fuel volume.Type: ApplicationFiled: April 2, 2001Publication date: December 13, 2001Inventors: Johannes-Jorg Rueger, Wolfgang Stoecklein, Bertram Sugg