Patents by Inventor Harald Schatz
Harald Schatz 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: 9933216Abstract: 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: December 19, 2014Date of Patent: April 3, 2018Assignee: Modine Manufacturing CompanyInventors: Harald Schatz, Stefan Muller-Luft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen
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Patent number: 9309839Abstract: An exhaust gas recirculation cooler that includes an inlet tank, an outlet tank, and an exhaust gas flow conduit in fluid communication with the inlet tank and the outlet tank. The exhaust gas flow conduit includes a first end, a second end, a first narrow side, a second narrow side, a first channel adjacent the first narrow side and extending between the first end and the second end, a second channel adjacent the second narrow side and extending between the first end and the second end, and a plurality of third channels located between the first channel and the second channel and extending between the first end and the second end. At least one of the inlet tank and the outlet tank includes a wall that inhibits exhaust gas from flowing through the first channel while allowing exhaust gas flow through the plurality of third channels.Type: GrantFiled: September 21, 2012Date of Patent: April 12, 2016Assignee: Modine Manufacturing CompanyInventors: Harald Schatz, Michael Daniel, Thomas Grotophorst, Jeff Schernecker, Daniel Hornback
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Publication number: 20150129167Abstract: 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: December 19, 2014Publication date: May 14, 2015Inventors: Harald Schatz, Stefan Muller-Luft, Ingo Heitel, Omur Acar, Jorg Soldner, Michael Daniel, Bjorn Volquardsen
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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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Patent number: 8915292Abstract: An exhaust gas heat exchanger that includes a stack at least partially surrounded by a housing. The stack includes a first tube, a second tube, and a coolant duct between the first tube and the second tube. A fin is located within the coolant duct. The fin includes a first portion and a second portion and the first tube includes a first portion and a second portion. The first portion of the fin is fixed to the first portion of the first tube such that the first portion of the fin is coupled to the first portion of the first tube for movement with respect to the housing, and the second portion of the fin is supported in the housing for movement relative to the second portion of the first tube to permit movement of the second portion of the first tube with respect to the second portion of the fin.Type: GrantFiled: August 23, 2011Date of Patent: December 23, 2014Assignee: Modine Manufacturing CompanyInventors: Harald Schatz, Michael Daniel, Thomas Grotophorst, Jeff Schernecker, Daniel E. Hornback, Andrew Boyer
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Patent number: 8261816Abstract: A heat exchanger with a plurality of stacked flat tubes and a collecting tank having a wall extending around the entire periphery of, and connected to, the end of the stacked flat tubes. A first medium may be distributed through the collecting tank and flat tubes. Internal inserts are in the flat tubes, with the inserts being bonded between the broad sides of the tubes and, in the region of connection of the tubes to the collecting tank, being configured to compensate for length changes in the stacking direction caused by temperature changes, as by recesses in connectors such as wave flanks or by corrugated wave flanks. The flat tubes with inserts such as described may be separately provided for use in manufacture of heat exchangers.Type: GrantFiled: December 17, 2004Date of Patent: September 11, 2012Assignee: Modine Manufacturing CompanyInventors: Peter Ambros, Jörg Soldner, Roland Strähle, Andreas Stolz, Dieter Merz, Jens Nies, Sven Thumm, Katja Müller, Harald Schatz, Peter C. Kottal, Frank M. Grippe
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Publication number: 20120043063Abstract: An exhaust gas heat exchanger that includes a stack at least partially surrounded by a housing. The stack includes a first tube, a second tube, and a coolant duct between the first tube and the second tube. A fin is located within the coolant duct. The fin includes a first portion and a second portion and the first tube includes a first portion and a second portion. The first portion of the fin is fixed to the first portion of the first tube such that the first portion of the fin is coupled to the first portion of the first tube for movement with respect to the housing, and the second portion of the fin is supported in the housing for movement relative to the second portion of the first tube to permit movement of the second portion of the first tube with respect to the second portion of the fin.Type: ApplicationFiled: August 23, 2011Publication date: February 23, 2012Inventors: Harald Schatz, Michael Daniel, Thomas Grotophorst, Jeff Schernecker, Daniel E. Hornback, Andrew Boyer
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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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Patent number: 8020610Abstract: The invention relates to an exhaust gas heat exchanger in an exhaust gas recirculation arrangement. The heat exchanger includes a plate stack which is surrounded by a housing. The plate stack can include two plates which are connected at their longitudinal edges to form a flat tube which contains a turbulator through which exhaust gas flows. The heat exchanger can also include a coolant duct which is equipped with flow directing elements arranged between two flat tubes. In order to make the exhaust gas heat exchanger more resistant to changing temperature stresses, the invention provides that the flow directing elements can be formed from a corrugated plate in which ducts with inlets and outlets are formed. At least some of the ducts in the inlet area of the coolant have a nonlinear profile so that changes in length are permitted between the plate stack and the housing.Type: GrantFiled: February 6, 2007Date of Patent: September 20, 2011Assignee: Modine Manufacturing CompanyInventors: Jörg Soldner, Sven Thumm, Roland Strähle, Harald Schatz
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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: 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
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Publication number: 20070181294Abstract: The invention relates to an exhaust gas heat exchanger in an exhaust gas recirculation arrangement. The heat exchanger includes a plate stack which is surrounded by a housing. The plate stack can include two plates which are connected at their longitudinal edges to form a flat tube which contains a turbulator through which exhaust gas flows. The heat exchanger can also include a coolant duct which is equipped with flow directing elements arranged between two flat tubes. In order to make the exhaust gas heat exchanger more resistant to changing temperature stresses, the invention provides that the flow directing elements can be formed from a corrugated plate in which ducts with inlets and outlets are formed. At least some of the ducts in the inlet area of the coolant have a nonlinear profile so that changes in length are permitted between the plate stack and the housing.Type: ApplicationFiled: February 6, 2007Publication date: August 9, 2007Inventors: Jorg Soldner, Sven Thumm, Roland Strahle, Harald Schatz
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Publication number: 20050161206Abstract: A heat exchanger with a plurality of stacked flat tubes and a collecting tank having a wall extending around the entire periphery of, and connected to, the end of the stacked flat tubes. A first medium may be distributed through the collecting tank and flat tubes. Internal inserts are in the flat tubes, with the inserts being bonded between the broad sides of the tubes and, in the region of connection of the tubes to the collecting tank, being configured to compensate for length changes in the stacking direction caused by temperature changes, as by recesses in connectors such as wave flanks or by corrugated wave flanks. The flat tubes with inserts such as described may be separately provided for use in manufacture of heat exchangers.Type: ApplicationFiled: December 17, 2004Publication date: July 28, 2005Inventors: Peter Ambros, Jorg Soldner, Roland Strahle, Andreas Stolz, Dieter Merz, Jens Nies, Sven Thumm, Katja Muller, Harald Schatz, Peter Kottal, Frank Grippe
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Patent number: 6920918Abstract: An economically manufactured heat exchanger is provided and includes a plurality of elongated, straight, flat tubes (16), each formed of two identical halves (78,80) joined to each other in mirror image fashion and each having opposed open ends and all arranged in a stack (18). At least one spacer wall (36) is disposed within each tube and extends generally from end to end thereof to define at least two side-by-side first fluid flow paths within a tube. An elongated housing (10) contains the stack and includes spaced headers (20,22) with each header including a tube slot for the adjacent end of each tube (16) in the stack (18). Spacers (26) in the stack separate adjacent tubes in the stack from one another and the spacers include ribs defining a serpentine flow path for a second fluid. An opening (30) is located in the housing (10) near each end thereof and is in fluid communication with the second fluid flow path (28).Type: GrantFiled: March 28, 2003Date of Patent: July 26, 2005Assignee: Modine Manufacturing CompanyInventors: Wolfgang Knecht, Roland Strähle, Jörg Soldner, Walter Gühring, Rainer Kaissling, Harald Schatz, Andreas Stolz
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Patent number: 6668916Abstract: A flat tube block heat exchanger with a plurality of flat tubes with deformed ends. The deformed ends have broad sides that have been deformed to expose the inner surface of the flat tubes. The exposed inner surfaces of the flat tubes are bonded to the exposed inner surface of an adjacent flat tube. The bonded inner surfaces of the adjacent flat tubes form a fluid barrier with tanks located at opposite ends of the flat tubes.Type: GrantFiled: September 23, 2002Date of Patent: December 30, 2003Assignee: Modine Manufacturing CompanyInventors: Wemer Zobel, Jorg Soldner, Herbert Marschner, Harald Schatz
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Publication number: 20030196785Abstract: An economically manufactured heat exchanger is provided and includes a plurality of elongated, straight, flat tubes (16), each formed of two identical halves (78,80) joined to each other in mirror image fashion and each having opposed open ends and all arranged in a stack (18). At least one spacer wall (36) is disposed within each tube and extends generally from end to end thereof to define at least two side-by-side first fluid flow paths within a tube. An elongated housing (10) contains the stack and includes spaced headers (20,22) with each header including a tube slot for the adjacent end of each tube (16) in the stack (18). Spacers (26) in the stack separate adjacent tubes in the stack from one another and the spacers include ribs defining a serpentine flow path for a second fluid. An opening (30) is located in the housing (10) near each end thereof and is in fluid communication with the second fluid flow path (28).Type: ApplicationFiled: March 28, 2003Publication date: October 23, 2003Inventors: Wolfgang Knecht, Roland Strahle, Jorg Soldner, Walter Guhring, Rainer Kaissling, Harald Schatz, Andreas Stolz
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Publication number: 20030056945Abstract: A flat tube block heat exchanger with a plurality of flat tubes with deformed ends. The deformed ends have broad sides that have been deformed to expose the inner surface of the flat tubes. The exposed inner surfaces of the flat tubes are bonded to the exposed inner surface of an adjacent flat tube. The bonded inner surfaces of the adjacent flat tubes form a fluid barrier with tanks located at opposite ends of the flat tubes.Type: ApplicationFiled: September 23, 2002Publication date: March 27, 2003Applicant: Modine Manufacturing CompanyInventors: Wemer Zobel, Jorg Soldner, Herbert Marschner, Harald Schatz