Patents by Inventor Wolfgang Seewald
Wolfgang Seewald 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: 11765792Abstract: The disclosure relates to a PTC heating module for heating a fluid and a method for producing such a PTC heating module. The PTC heating module includes a plurality of PTC thermistors having main surfaces disposed opposite to one another and spaced apart relative to one another in a thickness direction. The PTC thermistors are arranged between two contact plates next to one another transversely to the thickness direction and spaced apart relative to one another. The main surfaces of the PTC thermistors are electrically contacted with a contact surface of the two contact plates. At least one dielectric function element is arranged between the two contact plates and laterally sealingly engages about the respective PTC thermistors to at least partially fill a hollow space between the two contact plates and facilitate enlarging a creepage distance between the two contact plates within the hollow space.Type: GrantFiled: October 30, 2019Date of Patent: September 19, 2023Inventors: Alexander Daniel, Michael Kohl, Jonas Caspar Schwenzer, Wolfgang Seewald, Falk Viehrig
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Publication number: 20210410232Abstract: An electric heating device for heating a temperature-control fluid may include two electrodes, a heating element, and an elevation. The two electrodes may each include an electrode body with an inner surface. The heating element may include two electrical connecting surfaces disposed opposite one another. The heating element may be arranged between the two electrodes such that each connecting surface faces the inner surface of a respective one of the two electrodes. A joint may be delimited by the inner surface of an electrode and the associated connecting surface of the heating element. The joint may be filled with an adhesive via which the electrode is connected to the heating element in an integrally bonded manner. The elevation may project into the joint from the inner surface delimiting the joint. The elevation may lie against the associated connecting surface and electrically connect the electrode to the associated connecting surface.Type: ApplicationFiled: June 28, 2021Publication date: December 30, 2021Inventors: Michael Kohl, Peter Schluenzen, Wolfgang Seewald, Falk Viehrig, Denis Wiedmann
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Publication number: 20210070146Abstract: The present disclosure describes a PTC heating device for, e.g., an air-conditioning system of a motor vehicle. The PTC heating device includes first and second PTC thermistors each having a first and second electrical contacting surface that lie opposite one another. The PTC thermistors are arranged sandwiched between a first and a second electrical insulation. A first electrical line path is arranged between the first PTC thermistors and the first electrical insulation. The first electrical line path is electrically connected to the first contacting surface of the first PTC thermistors. A second electrical line path is arranged between the second PTC thermistors and the first electrical insulation. The second electrical line path is electrically isolated from the first line path and electrically connected to the first contacting surface of the second electric PTC thermistors.Type: ApplicationFiled: September 10, 2020Publication date: March 11, 2021Inventors: Lena Funk, Wolfgang Seewald, Falk Viehrig
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Publication number: 20210061066Abstract: The present disclosure describes a heating element for, e.g., an electrically drivable motor vehicle. The heating element includes a heating body having large heating areas oriented opposite one another, at least one insulating body for electrical insulation, and at least one functional body for providing an electrical conducting function and a bonding function. The at least one functional body includes a pair of fiction bodies having large functional body areas oriented opposite to one another. The pair of functional bodies are arranged on the heating body such that at least one large heating area lies substantially with its full surface area against a respective large functional body area of the respective functional body. The at least one functional body is of a two-part or multi-part structure.Type: ApplicationFiled: September 3, 2020Publication date: March 4, 2021Applicant: Mahle International GmbHInventors: Lena Funk, Wolfgang Seewald, Stephane Van Haaren, Falk Viehrig
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Patent number: 10780762Abstract: An electrical heating device (1) includes a housing (2, 102) having a fluid inlet (3) for the intake of a fluid to be heated into the housing (2, 102) and having a fluid outlet (4) for the discharge of the fluid from the housing (2, 102). A flow channel (5) for the fluid is formed between the fluid inlet (3) and fluid outlet (4), and at least one heating instrument (6, 105, 205) extends into the flow channel (5) in the housing (2, 102). This heating instrument has a sleeve (7, 207) that surrounds an interior of the heating instrument (6, 105, 205) in a fluid-tight way. At least one heating element (8, 208) is arranged in the sleeve (7, 207), and at least one sensor element (9, 109, 209) is arranged in the sleeve (7, 207) for monitoring the temperature of the at least one heating element (8, 208).Type: GrantFiled: May 4, 2018Date of Patent: September 22, 2020Assignee: Türk & Hillinger Automotive GmbHInventors: Michael Kohl, Karl-Gerd Krumbach, Wolfgang Seewald, Igor Tschemeris, Christoph Fodor, Andreas Schlipf
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Publication number: 20200137837Abstract: The disclosure relates to a PTC heating module for heating a fluid and a method for producing such a PTC heating module. The PTC heating module includes a plurality of PTC thermistors having main surfaces disposed opposite to one another and spaced apart relative to one another in a thickness direction. The PTC thermistors are arranged between two contact plates next to one another transversely to the thickness direction and spaced apart relative to one another. The main surfaces of the PTC thermistors are electrically contacted with a contact surface of the two contact plates. At least one dielectric function element is arranged between the two contact plates and laterally sealingly engages about the respective PTC thermistors to at least partially fill a hollow space between the two contact plates and facilitate enlarging a creepage distance between the two contact plates within the hollow space.Type: ApplicationFiled: October 30, 2019Publication date: April 30, 2020Inventors: Alexander Daniel, Michael Kohl, Jonas Caspar Schwenzer, Wolfgang Seewald, Falk Viehrig
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Patent number: 10302331Abstract: A heating device is provided with plates stacked one on top of another. At least one first fluid channel is formed in a fluid-tight manner between a first plate package with a first and a second plate. An electrical heating element is arranged between a first plate of the first plate package and an additional plate. The electrical heating element is accommodated between the two plates in a sealed manner and is electrically insulated, wherein an inlet-side and an outlet side fluid connection of the first fluid channel is arranged on the second plate of the first plate package. The electrical heating element has a connection device for electrical contacting, which is connected to the electrical heating element and protrudes through a window in the second plate of the first plate package, wherein the fluid connections and the window are arranged adjacent to opposing lateral edges of the second plate.Type: GrantFiled: January 26, 2015Date of Patent: May 28, 2019Assignees: MAHLE International GmbH, Behr-Hella Thermocontrol GmbHInventors: Michael Kohl, Karl-Gerd Krumbach, Karl Lochmahr, Wolfgang Seewald, Olivier Schunck, Dirk Nagel, Lars Heeper, Matthias Stallein, Michael Steinkamp, Karsten Marquas, Volker Dicke
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Patent number: 10180286Abstract: A plate-type heat exchanger, in particular for motor vehicles, is provided that includes a plurality of plate groups in order to form first and second and/or third flow paths, a spatial region for fourth flow paths being formed between adjacent plate groups, the plate groups having at least one plate pair having a first and second plate in order to form the first flow paths and the second flow paths, wherein a third plate can be arranged in interaction with one of the first or one of the second plates in order to form the third flow path.Type: GrantFiled: June 30, 2014Date of Patent: January 15, 2019Assignee: MAHLE International GmbHInventors: Wolfgang Seewald, Falk Viehrig, Emil Neumann
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Publication number: 20180328622Abstract: An electrical heating element, in particular for a heating or air-conditioning system of a motor vehicle, having a heating block, which includes a plurality of electrical heating elements having heaters and having contacts, which electrically contact the heaters, the heating block including a plurality of radiator elements, which are thermally connected to the heaters for the purpose of transferring heat from the heaters to a medium flowing against the radiator elements, the heaters having two diametrically opposed, wide side surfaces and two diametrically opposed, narrow side surfaces. The contacts electrically contact the heaters on the diametrically opposed narrow side surfaces, or the contacts electrically contact the heaters on the diametrically opposed, wide side surfaces in diagonally opposite areas, viewed laterally, which are each adjacent to one of the diametrically opposed, narrow side surfaces.Type: ApplicationFiled: May 9, 2018Publication date: November 15, 2018Applicant: MAHLE International GmbHInventors: Falk VIEHRIG, Michael KOHL, Wolfgang SEEWALD, Konrad DUBIL
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Publication number: 20180319252Abstract: An electrical heating device (1) includes a housing (2, 102) having a fluid inlet (3) for the intake of a fluid to be heated into the housing (2, 102) and having a fluid outlet (4) for the discharge of the fluid from the housing (2, 102). A flow channel (5) for the fluid is formed between the fluid inlet (3) and fluid outlet (4), and at least one heating instrument (6, 105, 205) extends into the flow channel (5) in the housing (2, 102). This heating instrument has a sleeve (7, 207) that surrounds an interior of the heating instrument (6, 105, 205) in a fluid-tight way. At least one heating element (8, 208) is arranged in the sleeve (7, 207), and at least one sensor element (9, 109, 209) is arranged in the sleeve (7, 207) for monitoring the temperature of the at least one heating element (8, 208).Type: ApplicationFiled: May 4, 2018Publication date: November 8, 2018Inventors: Michael KOHL, Karl-Gerd KRUMBACH, Wolfgang SEEWALD, Igor TSCHEMERIS, Christoph FODOR, Andreas SCHLIPF
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Patent number: 9958210Abstract: The invention relates to a plate-type heat exchanger, in particular for motor vehicles, having a plurality of plate pairs for forming first, second and third flow paths, a spatial region for fourth flow paths being formed between adjacent plate pairs, the plate pairs being formed from at least one first plate and a second plate in order to form the first flow paths and the second flow paths between the first and second plates, the third flow paths also being formed between the first plate and the second plate or an attachment plate being placed upon the first and/or the second plate in order to form the third flow path between the first plate and the attachment plate and/or between the second plate and the attachment plate.Type: GrantFiled: December 21, 2012Date of Patent: May 1, 2018Assignee: MAHLE INTERNATIONAL GMBHInventors: Wolfgang Seewald, Falk Viehrig
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Publication number: 20180065447Abstract: An electric heating device having a housing with a fluid inlet and with a fluid outlet, wherein the housing can be flowed through by a fluid, and wherein a number of heating elements protrude into the interior of the housing, wherein the heating elements have a heating element housing, and wherein a heating element has at least one heater in the heating element housing and the at least one heater has contacting contact elements and an electrical insulation for insulating the contact elements from the heating element housing, wherein the heating elements are sealingly connected with their heating element housing to the housing, wherein the heater of the heating elements are arranged in a geometrical configuration between the contact elements.Type: ApplicationFiled: September 6, 2017Publication date: March 8, 2018Applicant: MAHLE International GmbHInventors: Alain CMELIK, Michael KOHL, Karl-Gerd KRUMBACH, Wolfgang SEEWALD
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Patent number: 9874405Abstract: A heat exchanger with mutually adjacent first flow channels and second flow channels. The first flow channels and the second flow channels are received in a first manifold at a first end region of the flow channel end regions and in a second manifold at a second end region of the flow channel end regions. The first manifold has a first base and the second manifold has a second base, the first base and second base having a plurality of openings in which the end regions of the flow channels are received. The first manifold has a first longitudinal channel and a second longitudinal channel. The second manifold has a second cover which together with the second base of the second manifold forms transverse channels, and one first flow channel and one second flow channel are fluidically connected to each other via a respective transverse channel.Type: GrantFiled: August 19, 2015Date of Patent: January 23, 2018Assignee: MAHLE International GmbHInventors: Gottfried Duerr, Uwe Foerster, Martin Kaspar, Wolfgang Seewald, Siegfried Tews, Christoph Walter
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Patent number: 9848464Abstract: The application relates to an induction heating device having a housing and a fluid duct. The fluid duct is arranged in the housing and has a fluid inlet and a fluid outlet. Inside the housing is an induction element which generates an alternating magnetic field and which is separated from the fluid duct in a sealed manner by at least one wall. The device also includes at least one metallic areal heating element arranged in the fluid duct which can be heated by the alternating magnetic field.Type: GrantFiled: July 23, 2013Date of Patent: December 19, 2017Assignees: MAHLE INTERNATIONAL GMBH, BEHR-HELLA THERMOCONTROL GMBHInventors: Michael Kohl, Karl-Gerd Krumbach, Karl Lochmahr, Wolfgang Seewald, Olivier Schunck, Dirk Nagel, Lars Heeper, Matthias Stallein, Michael Steinkamp, Karsten Marquas, Volker Dicke
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Patent number: 9845997Abstract: A plate-type heat exchanger, in particular for motor vehicles, is described which includes plate pairs. In one example, a plate pair includes a first plate and a second plate that form a first flow path and a second flow path between the plates. In this configuration, the first and the second plate are associated with a first attachment plate and a second attachment plate, respectively. A third flow path is formed between the first plate and the second attachment plate and the first flow path is formed between the second plate and the first attachment plate. Alternatively, the third flow path is formed between the first plate and the first attachment plate and the first flow path is formed between the second plate and the second attachment plate. A spatial region for a fourth flow path may also be formed between adjacent plate pairs.Type: GrantFiled: December 21, 2012Date of Patent: December 19, 2017Assignee: MAHLE INTERNATIONAL GMBHInventors: Emil Neumann, Falk Viehrig, Wolfgang Seewald
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Publication number: 20170356697Abstract: A fin element for a heat exchanger, in particular for a heating, ventilation, and/or air conditioning system of a motor vehicle, with a plurality of connecting sections and of longitudinal sections, whereby in each case two adjacent longitudinal sections are connected to one another by a connecting section, whereby at least one of the longitudinal sections has gills formed by webs and slots, whereby at least one of the webs has a flared web surface, whereby the web surface is flared out from the at least one longitudinal section, whereby the web surface forms at least two surface sections arranged angled to one another.Type: ApplicationFiled: May 25, 2017Publication date: December 14, 2017Applicant: MAHLE International GmbHInventors: Falk VIEHRIG, Johannes KAELBER, Elke DETTLING, Michael KOHL, Karl Gerd KRUMBACH, Wolfgang SEEWALD
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Patent number: 9759492Abstract: A heat exchanger, particularly for a heating or air conditioning system for motor vehicles, includes at least one inlet channel and at least one outlet channel and at least one collector, which has at least two metal sheets or plates abutting each other, and a flow device through which a first medium can flow, while a second medium can flow around the flow device. The first medium is distributed by an inlet channel to the collector and to the flow device and can be conducted to an outlet channel, and at least one further channel for distributing the coolant is provided, which is connected in a communicating manner via at least one opening to the inlet channel.Type: GrantFiled: November 16, 2009Date of Patent: September 12, 2017Assignee: MAHLE International GmbHInventors: Boris Kerler, Wolfgang Seewald, Markus Ruehl, Christoph Walter, Karl-Heinz Staffa, Michael Geiger, Michael Kranich, Ingo Geiger, Wolfgang Geiger, Alexander Satrapa
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Patent number: 9743464Abstract: A heat exchanger device for a heater a motor vehicle, having a housing with at least one fluid channel disposed therein, with a fluid inlet and a fluid outlet, an element generating an alternating magnetic field, and at least one, preferably metallic, flat heating element around which a fluid can flow on one or both sides, whereby at least one further flat heating element is provided, which is configured to divide the at least one fluid channel into subchannels. A heater with a heat exchanger device is also provided.Type: GrantFiled: June 17, 2014Date of Patent: August 22, 2017Assignee: MAHLE International GmbHInventors: Wolfgang Seewald, Karl-Gerd Krumbach, Michael Kohl
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Patent number: 9655171Abstract: A heater with a housing with a fluid channel, disposed therein, with a fluid inlet and a fluid outlet, whereby a coil, which generates an alternating magnetic field and is separated sealed from the fluid channel by a coil housing, is provided in the housing, whereby furthermore at least one metallic flat heating element is provided, which can be heated by the alternating magnetic field. The at least one flat heating element is disposed in the fluid channel, whereby the fluid channel is divided at least into a first channel and a second channel. Walls bounding the channels are formed by the coil housing and/or by a flat heating element.Type: GrantFiled: June 17, 2014Date of Patent: May 16, 2017Assignees: MAHLE International GmbH, Behr-Hella Thermocontrol GmbHInventors: Wolfgang Seewald, Karl-Gerd Krumbach, Michael Kohl, Matthias Stallein, Lars Heeper, Karsten Marquas
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Patent number: 9599409Abstract: A heat exchanger, in particular for a heating or air-conditioning system in a motor vehicle, having an evaporator unit to which a refrigerant medium can be supplied via a distribution unit and through which said refrigerant medium flows and around which said refrigerant medium flows after only one diversion (two-block design) at the bottom in a diversion unit, wherein the distribution unit is designed to effect a uniform distribution of the refrigerant medium over the full width of the evaporator.Type: GrantFiled: February 6, 2012Date of Patent: March 21, 2017Assignee: MAHLE INTERNATIONAL GMBHInventors: Andreas Freund, Wolfgang Seewald, Michael Sickelmann, Bernd Schäfer