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).

  • Patent number: 9797665
    Abstract: 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: Grant
    Filed: October 11, 2008
    Date of Patent: October 24, 2017
    Assignee: Modine Manufacturing Company
    Inventors: Stefan Müller-Lufft, Wolfgang Münz, Thomas Ritter
  • Patent number: 9383144
    Abstract: 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: Grant
    Filed: May 3, 2010
    Date of Patent: July 5, 2016
    Assignee: Modine Manufacturing Company
    Inventors: Reinhard Stoll, Alfredo Ghidini, Stefan Müller-Lufft, Stefan Laux
  • Patent number: 8978740
    Abstract: 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: Grant
    Filed: October 1, 2010
    Date of Patent: March 17, 2015
    Assignee: Modine Manufacturing Company
    Inventors: Harald Schatz, Stefan Muller-Lufft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen, Joel T. Casterton, Kevin G. Clabots, Kevin M. Eppers
  • Publication number: 20120061060
    Abstract: 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: Application
    Filed: May 3, 2010
    Publication date: March 15, 2012
    Inventors: Reinhard Stoll, Alfredo Ghidini, Stefan Müller-Lufft, Stefan Laux
  • Patent number: 8033323
    Abstract: 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: Grant
    Filed: June 18, 2007
    Date of Patent: October 11, 2011
    Assignee: Modine Manufacturing Company
    Inventors: Harald Schatz, Stefan Muller-Lufft, Heitel Ingo, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen
  • Publication number: 20110067837
    Abstract: 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: Application
    Filed: October 1, 2010
    Publication date: March 24, 2011
    Inventors: Harald Schatz, Stefan Muller-Lufft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjõrn Volquardsen, Joel T. Casterton, Kevin G. Clabots, Kevin M. Eppers
  • Publication number: 20100206516
    Abstract: 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: Application
    Filed: October 11, 2008
    Publication date: August 19, 2010
    Inventors: Stefan Müller-Lufft, Wolfgang Münz, Thomas Ritter
  • Publication number: 20080087410
    Abstract: 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: Application
    Filed: September 28, 2007
    Publication date: April 17, 2008
    Inventors: Stefan Muller-Lufft, Harald Schatz, Bjorn Volquardsen
  • Publication number: 20080006398
    Abstract: 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: Application
    Filed: June 18, 2007
    Publication date: January 10, 2008
    Applicant: MODINE MANUFACTURING COMPANY
    Inventors: Harald Schatz, Stefan Muller-Lufft, Heitel Ingo, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen