Patents by Inventor Stefan Muller-Lufft
Stefan Muller-Lufft 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: 9797665Abstract: A heat exchanger includes a stack of plates which form ducts. Each of the plates can have at least two openings which, in the plate stack, form at least one collecting duct and one distributor duct which connect the ducts in terms of flow. A base plate can be arranged on the plate stack and can have a seal for sealing off the heat exchanger and a flow deflector for manipulating flow through the heat exchanger. The seal and the flow deflector can form a common component.Type: GrantFiled: October 11, 2008Date of Patent: October 24, 2017Assignee: Modine Manufacturing CompanyInventors: Stefan Müller-Lufft, Wolfgang Münz, Thomas Ritter
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Patent number: 9383144Abstract: A heat exchanger unit that includes a plurality of first heat exchanger ducts formed by a plurality of plates configured for a first flow of a coolant, a plurality of second heat exchanger ducts formed by the plurality of plates configured for a second flow to be cooled by the first flow, a first inlet for the first flow, a first outlet for the first flow, a first inlet for the second flow, and a second outlet for the second flow. The heat exchanger unit further includes an inlet chamber for the first flow from which a partial flow of the first flow is branched off, conducted through the plurality of first heat exchanger ducts and circulated within the heat exchanger unit to the first outlet.Type: GrantFiled: May 3, 2010Date of Patent: July 5, 2016Assignee: Modine Manufacturing CompanyInventors: Reinhard Stoll, Alfredo Ghidini, Stefan Müller-Lufft, Stefan Laux
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Patent number: 8978740Abstract: A heat exchanger includes a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is affected by outwardly curved metallic springs attached to the bundle of tubes which may be deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.Type: GrantFiled: October 1, 2010Date of Patent: March 17, 2015Assignee: Modine Manufacturing CompanyInventors: Harald Schatz, Stefan Muller-Lufft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen, Joel T. Casterton, Kevin G. Clabots, Kevin M. Eppers
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Publication number: 20120061060Abstract: A heat exchanger unit that includes a plurality of first heat exchanger ducts formed by a plurality of plates configured for a first flow of a coolant, a plurality of second heat exchanger ducts formed by the plurality of plates configured for a second flow to be cooled by the first flow, a first inlet for the first flow, a first outlet for the first flow, a first inlet for the second flow, and a second outlet for the second flow. The heat exchanger unit further includes an inlet chamber for the first flow from which a partial flow of the first flow is branched off, conducted through the plurality of first heat exchanger ducts and circulated within the heat exchanger unit to the first outlet.Type: ApplicationFiled: May 3, 2010Publication date: March 15, 2012Inventors: Reinhard Stoll, Alfredo Ghidini, Stefan Müller-Lufft, Stefan Laux
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Patent number: 8033323Abstract: The invention relates to a heat exchanger having a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is improved by virtue of the fact that the grid-like metallic securing structure includes integral hook-shaped protrusions which are deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.Type: GrantFiled: June 18, 2007Date of Patent: October 11, 2011Assignee: Modine Manufacturing CompanyInventors: Harald Schatz, Stefan Muller-Lufft, Heitel Ingo, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen
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Publication number: 20110067837Abstract: A heat exchanger includes a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is affected by outwardly curved metallic springs attached to the bundle of tubes which may be deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.Type: ApplicationFiled: October 1, 2010Publication date: March 24, 2011Inventors: Harald Schatz, Stefan Muller-Lufft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjõrn Volquardsen, Joel T. Casterton, Kevin G. Clabots, Kevin M. Eppers
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Publication number: 20100206516Abstract: The present invention provides a heat exchanger including a stack of plates which form ducts. Each of the plates can have at least two openings which, in the plate stack, form at least one collecting duct and one distributor duct which connect the ducts in terms of flow. A base plate can be arranged on the plate stack and can have a seal for sealing off the heat exchanger and a flow deflector for manipulating flow through the heat exchanger. The seal and the flow deflector can form a common component.Type: ApplicationFiled: October 11, 2008Publication date: August 19, 2010Inventors: Stefan Müller-Lufft, Wolfgang Münz, Thomas Ritter
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Publication number: 20080087410Abstract: The invention relates to a heat exchanger in which a liquid coolant and a gaseous flow, for example compressed charge air, are involved in the exchange of heat, with at least two heat exchanger blocks being provided which can be traversed by the coolant and by the gaseous flow. The invention can include inventive solutions for a flat arrangement including at least one gas-side bypass arranged adjacent to or within the first heat exchanger block and/or adjacent to or within the second heat exchanger block. The present invention also provides a method for cooling that divides the gaseous flow into at least two partial flows. One partial flow can be guided past a heat exchanger block, and the other partial flow can be conducted through the other heat exchanger block before the partial flows are finally merged.Type: ApplicationFiled: September 28, 2007Publication date: April 17, 2008Inventors: Stefan Muller-Lufft, Harald Schatz, Bjorn Volquardsen
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Publication number: 20080006398Abstract: The invention relates to a heat exchanger having a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is improved by virtue of the fact that the grid-like metallic securing structure includes integral hook-shaped protrusions which are deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.Type: ApplicationFiled: June 18, 2007Publication date: January 10, 2008Applicant: MODINE MANUFACTURING COMPANYInventors: Harald Schatz, Stefan Muller-Lufft, Heitel Ingo, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen