Patents by Inventor Hartmut Janssen
Hartmut Janssen 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: 10773325Abstract: Use of an aluminium composite material in a thermal joining method, said material consisting of at least one aluminium core alloy and at least one external brazing layer consisting of an aluminium brazing alloy provided on one or both sides of the aluminium core alloy, wherein the aluminium brazing layer has a pickled surface. Reduced costs and a lower environmental impact is achieved by using an aluminium composite material in which the pickled surface of the aluminium brazing layer had been pickled by pickling with an acid, aqueous pickling solution containing at least one mineral acid and at least one complex-forming agent or a complexing mineral acid, wherein the removal of material in the pickling is between 0.05 g/m2 and 6 g/m2, the aluminium composite material is used in a flux-free, thermal joining method, and the joining method is carried out in the presence of a protective gas.Type: GrantFiled: June 9, 2016Date of Patent: September 15, 2020Assignee: Hydro Aluminium Rolled Products GmbHInventors: Kathrin Eckhard, Olaf Güßgen, Hartmut Janssen
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Patent number: 10610977Abstract: The invention relates to a brazable three-layered aluminium composite material having at least three layers with at least two different aluminium alloys, whereby an inner layer of the at least three layers is an aluminium brazing layer made from an aluminium brazing alloy, the other layers are configured as covering layers and include at least one further aluminium alloy, wherein the at least one further aluminium alloy has a higher solidus temperature than the liquidus temperature of the aluminium brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminium brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminium composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a ‘burning through’ of brazed-on components and provides sufficient mechanical properties.Type: GrantFiled: June 2, 2017Date of Patent: April 7, 2020Assignee: Hydro Aluminium Rolled Products GmbHInventor: Hartmut Janssen
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Patent number: 10417834Abstract: Devices, methods, and products are disclosed for collecting tolls for the use of traffic areas which are subject to tolls by a vehicle. To book an authorization for the use of one out of several alternatively usable traffic areas by a vehicle in sufficient time, first position data of the vehicle are associated with alternatively usable traffic areas with regard to the imminent potential use thereof. Use authorizations are booked for the traffic areas. The use of these authorizations can be voided, with the exception of the one that was verifiably used, insofar as second position data of the vehicle are associated with the same traffic areas with respect to a verified non-use.Type: GrantFiled: January 28, 2013Date of Patent: September 17, 2019Assignee: TOLL COLLECT GMBHInventors: Timm Buchheim, Hartmut Janssen
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Publication number: 20190047092Abstract: The invention relates to an aluminium composite material having at least one core layer of an aluminium core alloy and at least one corrosion protection layer arranged on the core layer. The aluminium composite material has improved corrosion resistance, in particular avoids coarse detachments under corrosive conditions, through use of a corrosion protection layer with the following composition in wt %: Si?0.10%, Fe?0.6%, Cu?0.2%, 0.9%?Mn?1.2%, Mg?0.10%, Cr?0.3%, Zn?0.1%, Ti?0.1%, the rest Al and unavoidable impurities, individually at most 0.05%, in total at most 0.15%. The invention furthermore relates to a method for producing an aluminium composite material, a use as well as a heat exchanger or a component of a heat exchanger.Type: ApplicationFiled: October 19, 2018Publication date: February 14, 2019Applicant: Hydro Aluminium Rolled Products GmbHInventors: Gerhard Bermig, Nico Eigen, Hartmut Janssen, Manfred Mrotzek, Volker Sass, Stefan Schlüter
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Publication number: 20180222151Abstract: Provided are embodiments of an aluminium composite material for use in thermal flux-free joining methods. The composite material has at least one core layer of an aluminium core alloy and at least one outer solder layer of an aluminium solder alloy. The aluminium solder alloy has the following composition in wt %: 6.5%?Si?13%, Fe?1%, 230 ppm?Mg?450 ppm, Bi?500 ppm, Mn?0.15%, Cu?0.3%, Zn?3%, and Ti?0.30% with the remainder Al and unavoidable impurities individually at most 0.05%, in total at most 0.15% and the aluminium solder layer has an alkaline pickled or acid pickled surface. The invention further relates to a method for producing an aluminium composite material, a method for the thermal joining of components, and a thermally joined construction.Type: ApplicationFiled: April 5, 2018Publication date: August 9, 2018Applicant: Hydro Aluminium Rolled Products GmbHInventors: Kathrin Eckhard, Olaf Güssgen, Thorsten Richter, Hartmut Janssen, Nico Eigen
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Publication number: 20180221994Abstract: Provided herein are embodiments of an aluminium composite material for use in thermal flux-free joining methods. The composite material includes at least one core layer having an aluminium core alloy and at least one outer solder layer of an aluminium solder alloy. The aluminium solder alloy has the following composition in wt %: 6.5%?Si?13%, Fe?1%, 90 ppm?Mg?300 ppm, Bi?500 ppm, Mn?0.15%, Cu?0.3%, Zn?3%, and Ti?0.3% with the remainder Al and unavoidable impurities individually at most 0.05%, in total at most 0.15%. The aluminium solder layer has an alkaline pickled or acid pickled surface. Embodiments also relate to a method for producing an aluminium composite material, a method for the thermal joining of components, and a thermally joined construction.Type: ApplicationFiled: April 5, 2018Publication date: August 9, 2018Applicant: Hydro Aluminium Rolled Products GmbHInventors: Kathrin Eckhard, Olaf Güssgen, Thorsten Richter, Hartmut Janssen, Nico Eigen
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Publication number: 20180126496Abstract: The invention relates to an ingot consisting of an aluminium solder alloy having in percentage by weight 4.5%?Si?12%; and optionally one or more of the following alloying constituents in percentage by weight: Ti?0.2%, Fe?0.8%, Cu?0.3%, Mn?0.10%, Mg?2.0%, Zn_23 0.20%, Cr?0.05%, with the remainder aluminium and unavoidable impurities, individually at most 0.05 wt %, in total at most 0.15 wt %, wherein boron is additionally provided as an alloying constituent, wherein the boron content is at least 100 ppm and the aluminium alloy is free from primary Si particles having a size of more than 20 ?m. The invention further relates to an aluminium alloy product consisting of an aluminium alloy, to an ingot consisting of an aluminium alloy and to a method for producing an aluminium alloy.Type: ApplicationFiled: June 14, 2017Publication date: May 10, 2018Applicant: Hydro Aluminium Rolled Products GmbHInventors: Hartmut Janssen, Katrin Kuhnke, Werner Droste, Gerd-Ulrich Grün
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Publication number: 20170282306Abstract: The invention relates to an ingot consisting of an aluminium solder alloy having in percentage by weight 4.5%?Si?12%; and optionally one or more of the following alloying constituents in percentage by weight: Ti?0.2%, Fe?0.8%, Cu?0.3%, Mn?0.10%, Mg?2.0%, Zn_23 0.20%, Cr?0.05%, with the remainder aluminium and unavoidable impurities, individually at most 0.05 wt %, in total at most 0.15 wt %, wherein boron is additionally provided as an alloying constituent, wherein the boron content is at least 100 ppm and the aluminium alloy is free from primary Si particles having a size of more than 20 ?m. The invention further relates to an aluminium alloy product consisting of an aluminium alloy, to an ingot consisting of an aluminium alloy and to a method for producing an aluminium alloy.Type: ApplicationFiled: June 14, 2017Publication date: October 5, 2017Applicant: Hydro Aluminium Rolled Products GmbHInventors: Hartmut Janssen, Katrin Kuhnke, Werner Droste, Gerd-Ulrich Grün
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Publication number: 20170266766Abstract: The invention relates to a brazable three-layered aluminium composite material having at least three layers with at least two different aluminium alloys, whereby an inner layer of the at least three layers is an aluminium brazing layer made from an aluminium brazing alloy, the other layers are configured as covering layers and include at least one further aluminium alloy, wherein the at least one further aluminium alloy has a higher solidus temperature than the liquidus temperature of the aluminium brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminium brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminium composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a ‘burning through’ of brazed-on components and provides sufficient mechanical properties.Type: ApplicationFiled: June 2, 2017Publication date: September 21, 2017Applicant: Hydro Aluminium Rolled Products GmbHInventor: Hartmut Janssen
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Publication number: 20170260612Abstract: Provided is a heat exchanger, in particular for motor vehicles, with at least one exchanger tube of an aluminium alloy and with at least one component connected fluidically to the exchanger tube, wherein the exchanger tube and the component (14, 16) are connected to one another by way of a common soldered connection and wherein the component connected to the exchanger tube has a core layer of an aluminium alloy with the following composition: Si: max. 0.7% by weight, Fe: max. 0.70% by weight, Cu: max. 0.10% by weight, Mn: 0.9-1.5% by weight, Mg: max. 0.3% by weight, Cr: max. 0.25% by weight, Zn: max. 0.50% by weight, Ti: max. 0.25% by weight, Zr: max. 0.25% by weight, unavoidable impurities individually max. 0.05% by weight, altogether max. 0.15% by weight, the remainder aluminium.Type: ApplicationFiled: May 24, 2017Publication date: September 14, 2017Applicant: Hydro Aluminium Rolled Products GmbHInventors: Hartmut Janssen, Gerhard Bermig, Volker Saß, Stefan Schlüter
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Patent number: 9718149Abstract: The invention relates to a brazable three-layered aluminum composite material having at least three layers with at least two different aluminum alloys, whereby an inner layer of the at least three layers is an aluminum brazing layer made from an aluminum brazing alloy, the other layers are configured as covering layers and include at least one further aluminum alloy, wherein the at least one further aluminum alloy has a higher solidus temperature than the liquidus temperature of the aluminum brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminum brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminum composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a ‘burning through’ of brazed-on components and provides sufficient mechanical properties.Type: GrantFiled: December 21, 2015Date of Patent: August 1, 2017Assignee: Hydro Aluminum Rolled Products GmbHInventor: Hartmut Janssen
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Publication number: 20160325367Abstract: Use of an aluminium composite material in a thermal joining method, said material consisting of at least one aluminium core alloy and at least one external brazing layer consisting of an aluminium brazing alloy provided on one or both sides of the aluminium core alloy, wherein the aluminium brazing layer has a pickled surface. Reduced costs and a lower environmental impact is achieved by using an aluminium composite material in which the pickled surface of the aluminium brazing layer had been pickled by pickling with an acid, aqueous pickling solution containing at least one mineral acid and at least one complex-forming agent or a complexing mineral acid, wherein the removal of material in the pickling is between 0.05 g/m2 and 6 g/m2, the aluminium composite material is used in a flux-free, thermal joining method, and the joining method is carried out in the presence of a protective gas.Type: ApplicationFiled: June 9, 2016Publication date: November 10, 2016Applicant: Hydro Aluminium Rolled Products GmbHInventors: Kathrin Eckhard, Olaf Güßgen, Hartmut Janssen
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Publication number: 20160107268Abstract: The invention relates to a brazable three-layered aluminium composite material having at least three layers with at least two different aluminium alloys, whereby an inner layer of the at least three layers is an aluminium brazing layer made from an aluminium brazing alloy, the other layers are configured as covering layers and include at least one further aluminium alloy, wherein the at least one further aluminium alloy has a higher solidus temperature than the liquidus temperature of the aluminium brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminium brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminium composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a ‘burning through’ of brazed-on components and provides sufficient mechanical properties.Type: ApplicationFiled: December 21, 2015Publication date: April 21, 2016Applicant: Hydro Aluminium Rolled Products GmbHInventor: Hartmut Janssen
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Publication number: 20150053751Abstract: Use of an aluminium composite material consisting of at least one aluminium core alloy and at least one outer brazing layer consisting of an aluminium brazing alloy provided on one or both sides of the aluminium core alloy. Based on this prior art the object of the present invention is to provide a thermal joining process for an aluminium composite material, so that the use of fluxes can be dispensed with, this object being achieved in that the aluminium brazing layer of the aluminium composite material has a pickled surface and the aluminium composite material is used in a fluxless thermal joining process and the joining process is carried out in the presence of a protective gas.Type: ApplicationFiled: November 3, 2014Publication date: February 26, 2015Applicant: HYDRO ALUMINIUM ROLLED PRODUCTS GMBHInventors: Kathrin Eckhard, Jochen Schwarz, Olaf Güßgen, Raimund Sicking, Hartmut Janssen
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Publication number: 20150012309Abstract: According to the invention, in order to book an authorization for the imminent potential use of one out of several alternatively usable traffic areas by a vehicle in sufficient time, first position data of the vehicle are associated with all alternatively usable traffic areas with regard to the imminent potential use thereof, and use authorizations are booked for all of said traffic areas, wherein said use authorizations can be voided, with the exception of the one that was verifiably used, insofar as second position data of the vehicle are associated with the same traffic areas with respect to a verified non-use.Type: ApplicationFiled: January 28, 2013Publication date: January 8, 2015Applicant: Toll Collect GmbHInventors: Timm Buchheim, Hartmut Janssen
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Publication number: 20140298653Abstract: Method for manufacturing tube fm heat exchangers, (TFP), by brazing metal components of mainly aluminium or aluminium alloys including the following steps:—making the components of the TFP heat exchanger including the tubes (2) and plate fins (6) with collars (7),—providing a pre-braze coating with filler material on the tubes (2), or providing a (welded) clad tube (2) with a flux coating,—assembling the components including attaching the fins (6) to the tubes (2),—heating the assembled components forming the brazed connection between the tubes (2) and fins (6).Type: ApplicationFiled: October 8, 2012Publication date: October 9, 2014Applicant: NORSK HYDRO ASAInventors: Jan Halvor Nordlien, Hartmut Janssen, Thierry Guillaume
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Publication number: 20130302643Abstract: The invention relates to an aluminium alloy, and aluminium alloy product consisting at least in part of an aluminium alloy, an ingot formed from an aluminium alloy, and also a method for producing an aluminium alloy. An improved soldering process is achieved by an AlSi aluminium alloy that has the following proportions of alloy components in percentage by weight: 4.5%? Si ??12%, P ?10 ppm, B ?10 ppm, 30 ppm? Ti ?240 ppm,? Fe ??0.8%, Cu ??0.3%, Mn ?0.10%, Mg ??2.0%, Zn ?0.20%, Cr ?0.05%, the remainder being Al and unavoidable impurities, individually at most 0.05% by weight and in total at most 0.15% by weight, wherein the aluminium alloy is free from Si primary particles with a size of more than 10 ?m.Type: ApplicationFiled: July 18, 2013Publication date: November 14, 2013Applicant: Hydro Aluminium Rolled Products GmbHInventors: Gerd-Ulrich Grün, Hartmut Janssen, Katrin Kuhnke, Werner Droste