Patents by Inventor Helge Schlotmann

Patent number: 6918531
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Grant
Filed: September 22, 2003
Issued: July 19, 2005
Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Patent number: 6740178
Abstract: A method for producing a metallic honeycomb configuration is described. The method includes forming a honeycomb body by stacking and/or winding layers of steel sheet containing chromium and aluminum resulting in the honeycomb body having channels through which a fluid can flow. The honeycomb body is introduced into a tubular jacket. Connections are formed between neighboring layers of steel sheet by thermal treatment. The honeycomb body is then cooled down. It is preferred for the layers of steel sheet to be provided with a rolling oil having a high carbon content before the forming of the honeycomb body, with the effect that a layer of carbon enhancing the sintering process is formed in the thermal treatment. The number of connections produced in individual regions can be further influenced by selective introduction of stresses or by stress relief.
Type: Grant
Filed: March 14, 2002
Issued: May 25, 2004
Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
Inventors: Ferdi Kurth, Andree Bergmann, Helge Schlotmann, G√ľnther Faust, Ludwig Wieres
Application number: 20040058183
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Application
Filed: September 22, 2003
Issued: March 25, 2004
Assignee: Emitec Gesellschaft fur Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Patent number: 6659333
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Grant
Filed: November 25, 2002
Issued: December 9, 2003
Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Patent number: 6598782
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Grant
Filed: November 25, 2002
Issued: July 29, 2003
Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Application number: 20030116610
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Application
Filed: November 25, 2002
Issued: June 26, 2003
Assignee: Emitec Gesellschaft fur Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Application number: 20030077475
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Application
Filed: November 25, 2002
Issued: April 24, 2003
Assignee: Emitec Gesellschaft fur Emissionstechnologie mbH
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann
Application number: 20020152614
Abstract: A method for producing a metallic honeycomb configuration is described. The method includes forming a honeycomb body by stacking and/or winding layers of steel sheet containing chromium and aluminum resulting in the honeycomb body having channels through which a fluid can flow. The honeycomb body is introduced into a tubular jacket. Connections are formed between neighboring layers of steel sheet by thermal treatment. The honeycomb body is then cooled down. It is preferred for the layers of steel sheet to be provided with a rolling oil having a high carbon content before the forming of the honeycomb body, with the effect that a layer of carbon enhancing the sintering process is formed in the thermal treatment. The number of connections produced in individual regions can be further influenced by selective introduction of stresses or by stress relief.
Type: Application
Filed: March 14, 2002
Issued: October 24, 2002
Inventors: Ferdi kurth, Andree Bergmann, Helge Schlotmann, Gunther Faust, Ludwig Wieres
Application number: 20020022145
Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.
Type: Application
Filed: July 27, 2001
Issued: February 21, 2002
Inventors: Ludwig Wieres, Ferdi Kurth, Helge Schlotmann