Patents by Inventor Werner Herden
Werner Herden 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: 9153943Abstract: A method is described for producing a light source, in particular a light source for optically exciting a laser device, for example a laser device of a laser ignition system of an internal combustion engine, including a diode laser having a plurality of emitters and a fiber optic device. The fiber optic device includes a plurality of optical fibers, each fiber having a first end and a lateral surface area. The first ends are situated relative to the emitters in such a way that light generated by the emitters is injected into the first ends of the optical fibers. The optical fibers are situated in abutment along their lateral surface areas, at least in the region of the first ends of the optical fibers.Type: GrantFiled: February 17, 2010Date of Patent: October 6, 2015Assignee: ROBERT BOSCH GMBHInventors: Klaus Stoppel, Werner Herden, Hans-Jochen Schwarz, Andreas Letsch
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Patent number: 9136664Abstract: A method is for operating a pump light source having a diode laser, which provides a pump light, in particular for optical pumping of a laser device. The pump light source is activated in a first mode of operation such that the diode laser assumes a predefinable target temperature, which lies in a range of a maximum of the coefficient of absorption of the laser-active solid of the laser device. In a second mode of operation, following the first mode of operation, the pump light source is activated such that it generates pump light to build up a population inversion in the laser-active solid of the laser device. In a third mode of operation, following the second mode of operation, the pump light source is activated such that it generates pump light to activate a laser operation in the laser device.Type: GrantFiled: August 7, 2007Date of Patent: September 15, 2015Assignee: ROBERT BOSCHInventors: Werner Herden, Manfred Vogel, Heiko Ridderbusch
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Patent number: 9010292Abstract: A laser spark plug, in particular for an internal combustion engine of a motor vehicle, is described. A connection arrangement is provided in an end region of the laser spark plug facing the combustion chamber. The connection arrangement allow the laser spark plug to be connected to a prechamber module.Type: GrantFiled: February 1, 2010Date of Patent: April 21, 2015Assignee: Robert Bosch GmbHInventor: Werner Herden
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Patent number: 8919313Abstract: An ignition laser includes a laser-active solid body, a housing, and a combustion chamber window. The heat value of the ignition laser is settable in accordance with the requirements of the internal combustion engine.Type: GrantFiled: May 26, 2010Date of Patent: December 30, 2014Assignee: Robert Bosch GmbHInventors: Martin Weinrotter, Werner Herden, Pascal Woerner, Juergen Raimann, Heiko Ridderbusch
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Patent number: 8913643Abstract: A laser system for an ignition device of an internal combustion engine, in particular of a motor vehicle, having a first laser device and a second laser device situated downstream from the first laser device and optically connected to it, the first laser device being designed for generating pump light for optically pumping the second laser device. The first laser device has a reflecting means in an area which is optically connected to the second laser device, the reflecting arrangement being designed for reflecting radiation generated by the second laser device.Type: GrantFiled: February 19, 2010Date of Patent: December 16, 2014Assignee: Robert Bosch GmbHInventors: Werner Herden, Hans-Jochen Schwarz, Heiko Ridderbusch
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Patent number: 8891567Abstract: A semiconductor laser module having a substrate and having at least one semiconductor laser situated on the substrate, the substrate having a layer structure which includes at least one primary layer which establishes a thermal contact with the semiconductor laser. The semiconductor laser is designed in such a way that it emits heat pulses having a minimum specific heat of approximately 3 mJ per mm2, preferably approximately 5 mJ/mm2, and having a pulse duration of approximately 100 ?s to approximately 2,000 ?s, and the primary layer has a layer thickness which is between approximately 200 ?m and approximately 2,000 ?m, preferably between approximately 400 ?m and approximately 2,000 ?m.Type: GrantFiled: May 18, 2010Date of Patent: November 18, 2014Assignee: Robert Bosch GmbHInventors: Werner Herden, Hans-Jochen Schwarz, Wolfgang Pittroff
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Patent number: 8844491Abstract: A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction.Type: GrantFiled: September 27, 2010Date of Patent: September 30, 2014Assignee: Robert Bosch GmbHInventors: Martin Weinrotter, Igor Orlandini, Werner Herden, Pascal Woerner, Juergen Raimann
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Patent number: 8833323Abstract: An ignition laser, includes a laser-active solid-state body, a housing and a combustion chamber window, the housing having an inner sleeve and an outer sleeve. An insert is provided between the inner sleeve and the outer sleeve, the insert and the combustion chamber window being joined sealingly and integrally.Type: GrantFiled: January 25, 2010Date of Patent: September 16, 2014Assignee: Robert Bosch GmbHInventors: Helmut Weyl, Marco Gueth, Werner Herden, Karl-Heinz Nuebel, Franz Wetzl, Martin Weinrotter, Pascal Woerner, Stefan Henneck, Juergen Raimann, Joerg Engelhardt
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Patent number: 8761222Abstract: A light source, e.g., for optical excitation of a laser device, includes a diode laser having a large number of emitters and a light-guiding device, the light-guiding device including a large number of optical fibers. Each fiber has a first end and a lateral surface, the first ends being arranged relative to the emitters in such a manner that light generated by the emitters is coupled into the first ends of the optical fibers, the optical fibers being arranged in abutting relationship along their lateral surfaces at least in the region of their first ends. The optical fibers are connected in the region of their first ends to a fiber support.Type: GrantFiled: February 12, 2010Date of Patent: June 24, 2014Assignee: Robert Bosch GmbHInventors: Klaus Stoppel, Werner Herden, Hans-Jochen Schwarz, Andreas Letsch
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Patent number: 8712197Abstract: An ignition device, for an internal combustion engine of a motor vehicle, having a laser device for generating laser pulses, and having an optical fiber device which is at least optically connected to the laser device for supplying the laser device with pumped light. The optical fiber device is configured and situated in the region of the laser device such that radiation incident in the region of the laser device and/or in the region of a combustion chamber associated with the laser device is injected into the optical fiber device. The optical fiber device advantageously allow the radiation which is injected into the optical fiber device to be analyzed, using a detector which is remotely situated, without having to provide additional, separate optical fiber devices for the radiation to be analyzed, because is conducted directly via the same optical fiber that is already used for supplying pumped light.Type: GrantFiled: August 14, 2008Date of Patent: April 29, 2014Assignee: Robert Bosch GmbHInventors: Werner Herden, Martin Weinrotter, Pascal Woerner, Manfred Vogel, Juergen Raimann, Bernd Schmidtke, Heiko Ridderbusch
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Patent number: 8701613Abstract: A laser ignition plug includes an antechamber into which the laser ignition plug is configured to irradiate laser radiation. The antechamber defines at least two overflow ducts that realize a fluid connection between the antechamber and a spatial region surrounding the antechamber. The at least two overflow ducts, with regard to one or more of (i) the radial spacing thereof from a longitudinal axis of the antechamber, (ii) the axial spacing thereof from an end region, which faces toward the combustion chamber, of the antechamber, and (iii) the alignment and/or geometry thereof, are arranged asymmetrically with respect to the longitudinal axis of the antechamber.Type: GrantFiled: March 23, 2011Date of Patent: April 22, 2014Assignee: Robert Bosch GmbHInventors: Werner Herden, Martin Weinrotter, Pascal Woerner, Juergen Raimann
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Publication number: 20130199483Abstract: A laser ignition plug includes an antechamber into which the laser ignition plug is configured to irradiate laser radiation. The antechamber defines at least two overflow ducts that realize a fluid connection between the antechamber and a spatial region surrounding the antechamber. The at least two overflow ducts, with regard to one or more of (i) the radial spacing thereof from a longitudinal axis of the antechamber, (ii) the axial spacing thereof from an end region, which faces toward the combustion chamber, of the antechamber, and (iii) the alignment and/or geometry thereof, are arranged asymmetrically with respect to the longitudinal axis of the antechamber.Type: ApplicationFiled: March 23, 2011Publication date: August 8, 2013Applicant: Robert Bosch GmbHInventors: Werner Herden, Martin Weinrotter, Pascal Woener, Juergen Raimann
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Patent number: 8494321Abstract: A diode laser having a beam-forming device and a method for producing it are described. The diode laser includes at least one diode laser bar, the diode laser bar having a multitude of emitters, the emitters being disposed next to each other in the direction of their longitudinal axes. The diode laser includes a beam-forming device assigned to the diode laser bar, for the laser beam emerging from the diode laser bar, the beam-forming device having a light-guide device having a plurality of fibers, into which the laser beam is coupled. The maximum thickness of the optical fibers at their end facing the diode laser bar is considerably smaller than their width.Type: GrantFiled: July 22, 2008Date of Patent: July 23, 2013Assignee: Robert Bosch GmbHInventors: Werner Herden, Bernd Schmidtke
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Patent number: 8435807Abstract: A method for manufacturing a laser-active solid having a bonded passive Q-switch is provided. A plane-parallel first wafer plate may be manufactured from a laser-active material. A second plane-parallel wafer plate may be manufactured from a material that is suitable as a passive Q-switch. The first wafer plate and the second wafer plate may be bonded to form a wafer block, which may then be coated on both end faces with a resonator mirror. Subsequently, the wafer block may be separated into multiple passively Q-switched solid state lasers.Type: GrantFiled: July 22, 2008Date of Patent: May 7, 2013Assignee: Robert Bosch GmbHInventors: Werner Herden, Heiko Ridderbusch
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Publication number: 20130014717Abstract: A laser ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device for generating laser pulses, and having a pumped light source for optically pumping the laser device. A photodiode system is situated in the area of an optical connection between the pumped light source and the laser device in such a way that pumped radiation generated by the pumped light source and the laser radiation generated by the laser device may each be irradiated at least partially onto a photodiode of the photodiode system.Type: ApplicationFiled: December 3, 2010Publication date: January 17, 2013Inventors: Mathias Moenster, Werner Herden, Manfred Vogel
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Patent number: 8355415Abstract: In a method for operating an ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device which includes a laser-active solid having a passive Q-switching system as well as an optical amplifier connected downstream from the passive Q-switching system (46), the laser device generates a laser pulse for radiating into a combustion chamber, and the ignition device having a pump light source which provides a pump light for the laser-active solid and the optical amplifier (70) of the laser device. The energy of the laser pulse is controlled by varying a wavelength of the pump light.Type: GrantFiled: June 4, 2007Date of Patent: January 15, 2013Assignee: Robert Bosch GmbHInventors: Werner Herden, Manfred Vogel, Heiko Ridderbusch
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Publication number: 20130000597Abstract: A laser ignition device, particularly for an internal combustion engine, having a precombustion chamber and a laser device, which is developed to irradiate, particularly to focus, laser radiation onto at least two ignition points, lying in the precombustion chamber, that are different from each other. The laser device is developed to irradiate the laser radiation optionally onto one or more ignition points.Type: ApplicationFiled: November 18, 2010Publication date: January 3, 2013Inventors: Martin Weinrotter, Werner Herden, Pascal Woerner, Juergen Raimann
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Publication number: 20120304959Abstract: A laser spark plug having an antechamber is designed to irradiate laser radiation, which is guided and/or generated in the laser spark plug on at least two ignition points which are different from one another and are lying in the antechamber. The laser spark plug is designed to irradiate the laser radiation into the antechamber in such a way that a distance between at least one first ignition point and one second ignition point adjoining thereto is larger than a minimum distance between the first and/or the second ignition point(s) and an inner surface of the antechamber.Type: ApplicationFiled: October 4, 2010Publication date: December 6, 2012Inventors: Martin Weinrotter, Werner Herden, Juergen Raimann, Andreas Letsch
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Publication number: 20120304958Abstract: A laser ignition device for an internal combustion engine includes a laser spark plug having a laser-active solid and an outlet window for a laser pulse, and an antechamber. Certain sections of the antechamber are delimited by the outlet window and the antechamber has at least one opening to a combustion chamber of the internal combustion engine. A blow-in device is provided, an outlet opening of the blow-in device ending in the antechamber.Type: ApplicationFiled: October 20, 2010Publication date: December 6, 2012Inventors: Werner Herden, Juergen Raimann
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Publication number: 20120279469Abstract: A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction.Type: ApplicationFiled: September 27, 2010Publication date: November 8, 2012Inventors: Martin Weinrotter, Igor Orlandini, Werner Herden, Pascal Woerner, Juergen Raimann