Patents by Inventor Carsten Springhorn
Carsten Springhorn 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: 7628900Abstract: A sensor element having a layer configuration, for detecting a physical property of a gas, in particular for detecting the concentration of a gas component in an exhaust gas of an internal combustion engine. The sensor element has a measuring device, used to detect a physical property of the gas, and a heating device. The heating device includes a heater, which is electrically connected to a first heater supply lead and a second heater supply lead. The first heater supply lead is arranged in a plane of stratification between the second heater supply lead and the measuring device. The first heater supply lead is at an at least largely constant electrical potential.Type: GrantFiled: October 22, 2002Date of Patent: December 8, 2009Assignee: Robert Bosch GmbHInventors: Carsten Springhorn, Johannes Kanters, Lothar Diehl
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Patent number: 7445699Abstract: A gas sensor for detecting at least one physical magnitude of a gas, in particular of exhaust gases of an internal combustion engine, is proposed, which includes a sensor element having an electrochemical cell. The electrochemical cell includes a first solid electrolyte member on which a first electrode and a second electrode are applied. The first and the second electrode are electrically connected by means of the first solid electrolyte member. The first electrode is in contact with the gas. The area of the first electrode is smaller than the area of the second electrode.Type: GrantFiled: October 4, 2002Date of Patent: November 4, 2008Assignee: Robert Bosch GmbHInventors: Heiner Scheer, Carsten Springhorn, Hans-Joerg Renz, Frank Haag, Walter Strassner, Lothar Diehl, Thomas Moser, Stefan Rodewald, Marten Mamey, Jürgen Karle
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Patent number: 7037415Abstract: A sensor element of a gas sensor is described, this sensor being used to determine the concentration of at least one component of a gas mixture, in particular in exhaust gases of internal combustion engines. It includes at least two electrodes which are situated in an internal gas space which is in direct contact with the gas mixture, the one electrode containing a first material and the second electrode containing a second material. The internal gas space contains a means which acts physically and/or chemically to prevent diffusion of metal between the electrodes.Type: GrantFiled: November 20, 2001Date of Patent: May 2, 2006Assignee: Robert Bosch GmbHInventors: Berndt Cramer, Carsten Springhorn, Detlef Heimann, Gudrun Oehler, Margret Schuele, Bernd Schumann, Thorsten Ochs, Sabine Thiemann-Handler
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Publication number: 20050161324Abstract: A sensor element having a layer configuration, for detecting a physical property of a gas, in particular for detecting the concentration of a gas component in an exhaust gas of an internal combustion engine. The sensor element has a measuring device, used to detect a physical property of the gas, and a heating device. The heating device includes a heater, which is electrically connected to a first heater supply lead and a second heater supply lead. The first heater supply lead is arranged in a plane of stratification between the second heater supply lead and the measuring device. The first heater supply lead is at an at least largely constant electrical potential.Type: ApplicationFiled: October 22, 2002Publication date: July 28, 2005Inventors: Carsten Springhorn, Carsten Springhorn, Johanne Kanters, Lothar Diehl
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Publication number: 20050145492Abstract: A sensor for determining the concentration of a gas component in a gas mixture is provided, including at least one pump cell having an outer pump electrode which is exposed to the gas mixture and an inner pump electrode located in a measuring chamber, and further including a Nernst cell having a Nernst electrode located in the measuring chamber and a reference electrode located in a reference gas channel. The pump cell and the Nernst are formed in a composite structure of stacked solid electrolyte layers, which structure has an upper layer containing the pump electrodes, a middle layer containing the measuring chamber and the reference gas channel, as well as a lower layer containing a heating element and two supply leads. To suppress noise in the output signal of the sensor, the leads of the Nernst cell are disposed in one plane, in parallel side-by-side relationship, and symmetrically to at least one of the two supply leads of the heating element.Type: ApplicationFiled: October 4, 2002Publication date: July 7, 2005Inventors: Rainer Strohmaier, Carsten Springhorn, Ruediger Deibert, Lothar Diehl
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Patent number: 6911140Abstract: A sensor element and a method for determining the concentration of at least one gas component, especially of a nitrogen oxide, in a gas, mixture. For this purpose, the sensor element includes at least one first electrode exposed to the gas component to be analyzed and at least one reference electrode, which are electrically interconnected by a first solid electrolyte. Furthermore, an electric current between the first electrode and a further electrode is measured continuously or in sampling fashion in response to the application, especially the setting, of an electric voltage between first electrode and the reference electrode due to a chemical reaction proceeding at the first electrode, by which the concentration of the gas component to be analyzed in the gas mixture can be determined. During this process, the application or setting of the electric voltage takes place only during recurring time intervals.Type: GrantFiled: October 1, 2001Date of Patent: June 28, 2005Assignee: Robert Bosch GmbHInventors: Carsten Springhorn, Bernhard Bloemer
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Publication number: 20050034986Abstract: A gas sensor for detecting at least one physical magnitude of a gas, in particular of exhaust gases of an internal combustion engine, is proposed, which includes a sensor element having an electrochemical cell. The electrochemical cell includes a first solid electrolyte member on which a first electrode and a second electrode are applied. The first and the second electrode are electrically connected by means of the first solid electrolyte member. The first electrode is in contact with the gas. The area of the first electrode is smaller than the area of the second electrode.Type: ApplicationFiled: October 4, 2002Publication date: February 17, 2005Inventors: Heiner Scheer, Carsten Springhorn, Hans-Joerg Renz, Frank Haag, Walter Strassner, Lothar Diehl, Thomas Moser, Stefan Rodewald, Marten Mamey, Jurgen Karle
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Publication number: 20040089054Abstract: A sensor element of a gas sensor is described, this sensor being used to determine the concentration of at least one component of a gas mixture, in particular in exhaust gases of internal combustion engines. It includes at least two electrodes (22, 23) which are situated in an internal gas space (15) which is in direct contact with the gas mixture, the one electrode (22) containing a first material and the second electrode (23) containing a second material. The internal gas space (15) contains a means (34, 26, 38, 39) which acts physically and/or chemically to prevent diffusion of metal between the electrodes (22, 23).Type: ApplicationFiled: December 16, 2003Publication date: May 13, 2004Inventors: Berndt Cramer, Carsten Springhorn, Detlef Heimann, Gudrun Oehler, Margret Schuele, Bernd Schumann, Thorsten Ochs, Sabine Thiemann-Handler
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Patent number: 6645361Abstract: An electrochemical gas sensor for determining the concentration of gas components in a gas mixture, in particular for determining NOx and HC. The gas sensor includes a first measuring gas space which is connected to the measuring gas, and a second measuring gas space which is connected to the first measuring gas space by a connecting channel. Furthermore, a first electrode and a second electrode, arranged in the first measuring gas space, and at least one third electrode arranged in the second measuring gas space, and at least one fourth electrode are provided. The two measuring gas spaces are arranged in layer planes on top of one another and are separated from one another by at least one oxygen ion conducting layer, the connecting channel passing through the oxygen ion conducting layer.Type: GrantFiled: January 14, 2002Date of Patent: November 11, 2003Assignee: Robert Bosch GmbHInventors: Bernhard Bloemer, Rainer Strohmaier, Carsten Springhorn, Detlef Heimann, Hans-Joerg Renz, Harald Neumann, Margret Schuele, Bernd Schumann, Thomas Moser, Sabine Thiemann-Handler
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Patent number: 6627059Abstract: An electrochemical measuring sensor for determining gas components and/or gas concentrations in gas mixtures, having a sensor element which has at least one signal-forming electrode having a supply lead of the signal-forming electrode and at least one electrical element whose electrical potential differs from the electrical potential of the supply lead of the signal-forming electrode. The supply lead of the signal-forming electrode is at least regionally surrounded by an electrically conducting shielding, so that fault currents appearing because of the potential difference between the supply lead of the signal-forming electrode and the electrical element flow at least predominantly between the electrical element and the shielding.Type: GrantFiled: March 22, 2001Date of Patent: September 30, 2003Assignee: Robert Bosch GmbHInventor: Carsten Springhorn
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Patent number: 6613207Abstract: An electrochemical sensor for ascertaining gas concentrations in gases, particularly in exhaust gases of combustion engines, includes an oxygen-ion-conductive solid electrolyte which is provided with electrode layers arranged at a distance from one another and with at least one resistance heating element that is separated from the solid electrolyte by an electrical insulating layer, a foil binder layer being provided between the electrical insulating layer and the solid electrolyte. At least one electron-conductive intermediate layer is provided between the electrode-side electrical insulating layer and the adjacent solid electrolyte.Type: GrantFiled: December 14, 1999Date of Patent: September 2, 2003Assignee: Robert Bosch GmbHInventors: Claudio De La Prieta, Jens Stefan Schneider, Carsten Springhorn, Thomas Schulte, Olaf Jach, Ulrich Eisele, Carmen Schmiedel, Lothar Diehl
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Patent number: 6551499Abstract: This invention provides a method for monitoring the function and/or regeneration of a gas probe. The invention includes a measurement of first and second pump currents of the gas probe and a determination of a difference between the first and second pump currents (&Dgr;I). If &Dgr;I exceeds a pregiven value, then a saturation pump voltage is applied and the difference between a resulting pump current and a previously stored minimum pump current (&Dgr;I plus) is determined. If &Dgr;I plus exceeds a pregiven value, then a regeneration voltage is applied.Type: GrantFiled: June 20, 2001Date of Patent: April 22, 2003Assignee: Robert Bosch GmbHInventors: Carsten Springhorn, Bernd Schumann, Sabine Thiemann-Handler
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Patent number: 6544394Abstract: A sensor for determining gas components and concentrations in a gas mixture that is particularly suitable for analyzing HC, NOx and CO in exhaust gases of internal combustion engines in the sensor, an outer electrode, that is separated from an MOx electrode by an electrolyte layer, is applied on a substrate. In this context, the outer electrode and the MOx electrode are in communication with the gas mixture to be analyzed. In addition, the outer electrode contains a region that is in contact with a gas-permeable tunnel layer which in turn contains a region that is directly exposed to the gas mixture to be analyzed, so that the gas to be analyzed can be supplied to the outer electrode via the gas-permeable tunnel layer.Type: GrantFiled: November 30, 2000Date of Patent: April 8, 2003Assignee: Robert Bosch GmbHInventors: Rainer Strohmaier, Carsten Springhorn, Detlef Heimann, Thomas Wahl, Margret Schuele, Bernd Schumann, Bernhard Bloemer
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Publication number: 20020078743Abstract: A sensor element and a method for determining the concentration of at least one gas component, especially of a nitrogen oxide, in a gas, mixture. For this purpose, the sensor element includes at least one first electrode exposed to the gas component to be analyzed and at least one reference electrode), which are electrically interconnected by a first solid electrolyte. Furthermore, an electric current between the first electrode and a further electrode is measured continuously or in sampling fashion in response to the application, especially the setting, of an electric voltage between first electrode and the reference electrode due to a chemical reaction proceeding at the first electrode, by which the concentration of the gas component to be analyzed in the gas mixture can be determined. During this process, the application or setting of the electric voltage takes place only during recurring time intervals.Type: ApplicationFiled: October 1, 2001Publication date: June 27, 2002Inventors: Carsten Springhorn, Bernhard Bloemer
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Patent number: 6352631Abstract: A gas sensor in the form of a mixed-potential sensor in which the influence of temperature-dependent interference is reduced. An improved temperature control is provided with the help of a temperature sensor mounted on the surface of the electrolytic substrate.Type: GrantFiled: January 3, 2000Date of Patent: March 5, 2002Assignee: Robert Bosch, GmbHInventors: Bernhard Bloemer, Rainer Strohmaier, Carsten Springhorn, Detlef Heimann, Margret Schuele, Bernd Schumann
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Publication number: 20010047939Abstract: An electrochemical measuring sensor for determining gas components and/or gas concentrations in gas mixtures, having a sensor element which has at least one signal-forming electrode having a supply lead of the signal-forming electrode and at least one electrical element whose electrical potential differs from the electrical potential of the supply lead of the signal-forming electrode. The supply lead of the signal-forming electrode is at least regionally surrounded by an electrically conducting shielding, so that fault currents appearing because of the potential difference between the supply lead of the signal-forming electrode and the electrical element flow at least predominantly between the electrical element and the shielding.Type: ApplicationFiled: March 22, 2001Publication date: December 6, 2001Inventor: Carsten Springhorn