Patents by Inventor Gerhard Hueftle
Gerhard Hueftle 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: 20210131841Abstract: A sensor element is provided for detecting at least one property of a fluid medium. The sensor element includes at least one housing. The housing forms at least one flow channel through which the fluid medium is able to flow. A pressure tap branches off from the flow channel, in which at least one pressure sensor for detecting a pressure of the fluid medium is situated. At least one cavity is situated between the flow channel and the pressure sensor for collecting contaminants in at least one wall of the pressure tap.Type: ApplicationFiled: March 15, 2018Publication date: May 6, 2021Inventors: Gerhard Hueftle, Benjamin Plogmann, Uwe Konzelmann
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Patent number: 10809108Abstract: A sensor is provided for determining at least one parameter of a fluid medium flowing through a measurement channel, in particular an intake air mass flow of an internal combustion engine. The sensor has a sensor housing, in particular a plug-in sensor that is inserted into or is insertable into a flow tube, in which sensor a measurement channel is fashioned, and has at least one sensor chip situated in the measurement channel for determining the parameter of the fluid medium. The sensor housing has an electronics compartment for accommodating an electronics module and has an electronics compartment cover for closing the electronics compartment. The electronics compartment cover has, at least in part, electrically conductive properties. For example, the electronics compartment cover is placed onto the electrical ground of the sensor and, viewed in projection, partly or completely covers the sensor chip.Type: GrantFiled: October 6, 2015Date of Patent: October 20, 2020Assignee: Robert Bosch GmbHInventors: Achim Briese, Alexander Markov, Axel-Werner Haag, Edda Sommer, Hans Beyrich, Uwe Konzelmann, Bastian Bodenberger, Frank Steuber, Gerhard Hueftle, Holger Unger, Michael Rittmann, Michael Eppler, Reinhold Herrmann, Thomas Schwartzkopff
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Publication number: 20170328753Abstract: A sensor is provided for determining at least one parameter of a fluid medium flowing through a measurement channel, in particular an intake air mass flow of an internal combustion engine. The sensor has a sensor housing, in particular a plug-in sensor that is inserted into or is insertable into a flow tube, in which sensor a measurement channel is fashioned, and has at least one sensor chip situated in the measurement channel for determining the parameter of the fluid medium. The sensor housing has an electronics compartment for accommodating an electronics module and has an electronics compartment cover for closing the electronics compartment. The electronics compartment cover has, at least in part, electrically conductive properties. For example, the electronics compartment cover is placed onto the electrical ground of the sensor and, viewed in projection, partly or completely covers the sensor chip.Type: ApplicationFiled: October 6, 2015Publication date: November 16, 2017Inventors: Achim Briese, Alexander Markov, Axel-Werner Haag, Edda Sommer, Hans Beyrich, Uwe Konzelmann, Bastian Bodenberger, Frank Steuber, Gerhard Hueftle, Holger Unger, Michael Rittmann, Michael Eppler, Reinhold Herrmann, Thomas Schwartzkopff
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Patent number: 9239337Abstract: An ultrasonic transducer for use in a fluid medium is proposed. The ultrasonic transducer includes at least one transducer core which has at least one acoustic/electric transducer element, in particular a piezoelectric transducer element. The ultrasonic transducer furthermore includes at least one housing, at least one housing opening being at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the transducer core. The sealing film has at least one expansion deformation which is configured to permit a relative movement between the transducer core and the housing.Type: GrantFiled: September 9, 2010Date of Patent: January 19, 2016Assignee: ROBERT BOSCH GMBHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 9097569Abstract: An ultrasonic transducer for use in a fluid medium includes at least one housing, e.g., a sleeve, which has at least one interior space, and at least one transducer core having at least one electroacoustic transducer element is accommodated in the interior space. The housing has a housing wall at least partially enclosing the transducer core using at least one hollow space.Type: GrantFiled: December 7, 2010Date of Patent: August 4, 2015Assignee: ROBERT BOSCH GMBHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 9087504Abstract: An ultrasonic transducer for use in a fluid medium includes at least one transducer core having at least one electroacoustic transducer element, and further includes at least one housing having at least two housing parts. At least one first housing part at least partially encloses the transducer core such that a rear side of the electroacoustic transducer element which faces away from the fluid medium is accessible. Furthermore, at least one second housing part is connected to the first housing part. The ultrasonic transducer is essentially terminated by the second housing part on its side, which faces away from the fluid medium.Type: GrantFiled: September 10, 2010Date of Patent: July 21, 2015Assignee: ROBERT BOSCH GMBHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8988971Abstract: An ultrasonic transducer for use in a fluid medium includes at least one housing having at least one inner space, at least one transducer core accommodated in the inner space, having at least one electroacoustic transducer element. The housing has at least one opening facing the fluid medium. The opening is covered at least partially by at least one sealing foil. An edge of the sealing foil is sealed by at least one sealing material.Type: GrantFiled: September 10, 2010Date of Patent: March 24, 2015Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8847441Abstract: A device for producing a current pulse includes supply terminals for providing a power supply voltage, and a switch which is situated in a control current branch between the supply terminals, which switch is configured to switch a control current through the control current branch as a function of an actuation signal. The device also has a current mirror having a control transistor and a signal transistor, the control transistor being situated in series to the first switch in the control current branch, and the signal transistor being configured to provide the current pulse as a function of the control current through the control transistor.Type: GrantFiled: January 18, 2011Date of Patent: September 30, 2014Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8794080Abstract: An ultrasonic flow sensor for detecting a flow of a fluid medium in a flow tube includes at least one first ultrasonic transducer, at least one second ultrasonic transducer, and at least one waveguide configured to conduct ultrasonic waves between the at least one first ultrasonic transducer and the at least one second ultrasonic transducer by reflection on walls of the waveguide, and to enable the fluid medium to flow through. The ultrasonic waves are able to propagate between the first ultrasonic transducer and the second ultrasonic transducer on at least two ultrasonic paths. Sound energies of the ultrasonic waves transmitted on the at least two different ultrasonic paths differ from one another by no more than a factor of 100.Type: GrantFiled: August 18, 2010Date of Patent: August 5, 2014Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8709201Abstract: A method for gluing components is provided, forming an adhesive layer which is capable of functioning, at least in a temperature range of ?100° C. to ?160° C., wherein the adhesive layer is obtained from a curable reactive resin system. The reactive resin system includes an epoxy resin component and polymer particles dispersed in the epoxy resin component, the dispersed polymer particles furthermore including addition-crosslinked silicone elastomer. Also provided is the use of a reactive resin system for gluing piezoelectric ceramics and/or permanent magnets including rare earth elements and a component configuration including a piezoelectric ceramic, an impedance matching layer and an adhesive layer in contact with the piezoelectric ceramic and the impedance matching layer.Type: GrantFiled: August 21, 2009Date of Patent: April 29, 2014Assignee: Robert Bosch GmbHInventors: Roland Mueller, Irene Jennrich, Gerhard Hueftle, Patrick Stihler
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Patent number: 8698378Abstract: An ultrasonic transducer for use in a fluid medium includes at least one piezoelectric transducer element, at least one matching body for the promotion of a vibrational coupling between the piezoelectric transducer element and the fluid medium, and at least one compensating body situated between the piezoelectric transducer element and the matching body for the reduction of thermal stresses, the compensating body having a coefficient of thermal expansion that is between a coefficient of thermal expansion of the piezoelectric transducer element and a coefficient of thermal expansion of the matching body.Type: GrantFiled: November 26, 2009Date of Patent: April 15, 2014Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8627729Abstract: A method for manufacturing an ultrasonic transducer for use in a fluid medium. At least one piezoelectric transducer element is joined directly or indirectly to at least one matching member for promoting vibration coupling between the piezoelectric transducer element and the fluid medium. A matching member is used which has at least one porous molding of a polymer.Type: GrantFiled: December 17, 2009Date of Patent: January 14, 2014Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Patent number: 8596139Abstract: An ultrasonic transducer is described for use in a fluid medium. The ultrasonic transducer includes at least one piezoelectric transducer element and at least one matching element for promoting an oscillation injection between the piezoelectric transducer element and the fluid medium. The ultrasonic transducer also includes a housing (112), the piezoelectric transducer element being inserted in the housing. The housing has at least one opening facing the fluid medium, the matching element being inserted at least partially into the opening. The ultrasonic transducer also has at least one sealing element, which seals at least one intervening space between the matching element and the housing in such a way that an inner space of the housing is at least largely sealed from the fluid medium.Type: GrantFiled: November 17, 2009Date of Patent: December 3, 2013Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Flow meter having a thermal decoupling element separating an ultrasonic transducer and the flow pipe
Patent number: 8528418Abstract: A flow meter for use in a flowing fluid medium includes at least one ultrasonic transducer and at least one measuring section having at least one flow pipe through which a fluid medium flows in a main direction of flow. The ultrasonic transducer is equipped to emit ultrasonic signals essentially parallel to the main direction of flow into the measuring section. The ultrasonic transducer is separated from the flow pipe by at least one thermal decoupling element. The thermal decoupling element is equipped to reduce heat transfer from the flow pipe to the ultrasonic transducer.Type: GrantFiled: September 21, 2010Date of Patent: September 10, 2013Assignee: Robert Bosch GmbHInventors: Gerhard Hueftle, Uwe Konzelmann -
Patent number: 8413514Abstract: A method for manufacturing an ultrasonic transducer for use in a fluid medium is described. The ultrasonic transducer includes at least one transducer core having at least one acoustic-electric transducer element. The ultrasonic transducer furthermore includes at least one housing which at least partially surrounds the transducer core and which has at least one opening facing the fluid medium. In the method, at least one sealing film is stretched and connected to the housing in the stretched state in such a way that the sealing film at least partially seals the opening.Type: GrantFiled: June 1, 2011Date of Patent: April 9, 2013Assignee: Robert Bosch GmbHInventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Publication number: 20130014592Abstract: An ultrasonic transducer for use in a fluid medium includes at least one housing, e.g., a sleeve, which has at least one interior space, and at least one transducer core having at least one electroacoustic transducer element is accommodated in the interior space. The housing has a housing wall at least partially enclosing the transducer core using at least one hollow space.Type: ApplicationFiled: December 7, 2010Publication date: January 17, 2013Inventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Publication number: 20120320713Abstract: An ultrasonic transducer for use in a fluid medium includes at least one housing having at least one inner space, at least one transducer core accommodated in the inner space, having at least one electroacoustic transducer element. The housing has at least one opening facing the fluid medium. The opening is covered at least partially by at least one sealing foil. An edge of the sealing foil is sealed by at least one sealing material.Type: ApplicationFiled: September 10, 2010Publication date: December 20, 2012Inventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Publication number: 20120285260Abstract: An ultrasonic flow sensor for detecting a flow of a fluid medium in a flow tube includes at least one first ultrasonic transducer, at least one second ultrasonic transducer, and at least one waveguide configured to conduct ultrasonic waves between the at least one first ultrasonic transducer and the at least one second ultrasonic transducer by reflection on walls of the waveguide, and to enable the fluid medium to flow through. The ultrasonic waves are able to propagate between the first ultrasonic transducer and the second ultrasonic transducer on at least two ultrasonic paths. Sound energies of the ultrasonic waves transmitted on the at least two different ultrasonic paths differ from one another by no more than a factor of 100.Type: ApplicationFiled: August 18, 2010Publication date: November 15, 2012Inventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Publication number: 20120266677Abstract: An ultrasonic transducer for use in a fluid medium includes at least one transducer core having at least one electroacoustic transducer element, and further includes at least one housing having at least two housing parts. At least one first housing part at least partially encloses the transducer core such that a rear side of the electroacoustic transducer element which faces away from the fluid medium is accessible. Furthermore, at least one second housing part is connected to the first housing part. The ultrasonic transducer is essentially terminated by the second housing part on its side, which faces away from the fluid medium.Type: ApplicationFiled: September 10, 2010Publication date: October 25, 2012Inventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Sami Radwan, Bernd Kuenzl, Roland Wanja
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Publication number: 20120266676Abstract: A method for measuring a propagation time difference includes: sending a transmitted ultrasound pulse, which is provided with a transmission reference instant and which includes an envelope and a carrier frequency, into a spatial region and receiving a received ultrasound pulse that corresponds to the transmitted ultrasound pulse transmitted. A coarse time difference is provided by comparing the transmission reference instant with an envelope of the received ultrasound pulse, for at least two cycles of transmission/reception in opposite directions of transmission. A fine time difference is provided by comparing the transmission reference instant with an instantaneous variation of the received ultrasound pulse, for the at least two cycles of transmission/reception in opposite directions of transmission.Type: ApplicationFiled: August 18, 2010Publication date: October 25, 2012Inventors: Roland Mueller, Gerhard Hueftle, Michael Horstbrink, Tobias Lang, Samí Radwan, Bernd Kuenzl, Roland Wanja