Patents by Inventor Siegfried Tews

Siegfried Tews 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: 9874405
    Abstract: A heat exchanger with mutually adjacent first flow channels and second flow channels. The first flow channels and the second flow channels are received in a first manifold at a first end region of the flow channel end regions and in a second manifold at a second end region of the flow channel end regions. The first manifold has a first base and the second manifold has a second base, the first base and second base having a plurality of openings in which the end regions of the flow channels are received. The first manifold has a first longitudinal channel and a second longitudinal channel. The second manifold has a second cover which together with the second base of the second manifold forms transverse channels, and one first flow channel and one second flow channel are fluidically connected to each other via a respective transverse channel.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: January 23, 2018
    Assignee: MAHLE International GmbH
    Inventors: Gottfried Duerr, Uwe Foerster, Martin Kaspar, Wolfgang Seewald, Siegfried Tews, Christoph Walter
  • Publication number: 20150354900
    Abstract: A heat exchanger with mutually adjacent first flow channels and second flow channels. The first flow channels and the second flow channels are received in a first manifold at a first end region of the flow channel end regions and in a second manifold at a second end region of the flow channel end regions. The first manifold has a first base and the second manifold has a second base, the first base and second base having a plurality of openings in which the end regions of the flow channels are received. The first manifold has a first longitudinal channel and a second longitudinal channel. The second manifold has a second cover which together with the second base of the second manifold forms transverse channels, and one first flow channel and one second flow channel are fluidically connected to each other via a respective transverse channel.
    Type: Application
    Filed: August 19, 2015
    Publication date: December 10, 2015
    Applicant: MAHLE International GmbH
    Inventors: Gottfried DUERR, Uwe FOERSTER, Martin KASPAR, Wolfgang SEEWALD, Siegfried TEWS, Christoph WALTER
  • Patent number: 8919147
    Abstract: A collection container for a heat exchanger, in particular for a refrigerant condenser of a motor vehicle, the collection container having at least one inlet opening for a fluid, in particular refrigerant, and the collection container having at least one outlet opening for the fluid, in which in addition the outer jacket of the collection container limits a cross-sectional surface of the internal chamber in each of a number of cross-sections regarded perpendicular to the longitudinal direction of the collection container, and in which the surface content of these cross-sectional surfaces of the internal chamber limited by the outer jacket has different sizes in at least two cross-sections situated at a distance from one another in the longitudinal direction of the collection container.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: December 30, 2014
    Assignee: Behr GmbH & Co. KG
    Inventors: Gerrit Wolk, Markus Pflieger, Siegfried Tews
  • Publication number: 20080314075
    Abstract: A collection container for a heat exchanger, in particular for a refrigerant condenser of a motor vehicle, the collection container having at least one inlet opening for a fluid, in particular refrigerant, and the collection container having at least one outlet opening for the fluid, in which in addition the outer jacket of the collection container limits a cross-sectional surface of the internal chamber in each of a number of cross-sections regarded perpendicular to the longitudinal direction of the collection container, and in which the surface content of these cross-sectional surfaces of the internal chamber limited by the outer jacket has different sizes in at least two cross-sections situated at a distance from one another in the longitudinal direction of the collection container.
    Type: Application
    Filed: November 15, 2004
    Publication date: December 25, 2008
    Inventors: Gerrit Wolk, Markus Pflieger, Siegfried Tews
  • Patent number: 7043936
    Abstract: The invention relates to a condenser (1) comprising an integrated collector (5) which is arranged parallel to one of the collector tubes (2) and is connected to said connector tube via two overflow opening (8 and 9). Said collector (5) is used to receive a drying/filtering unit (11). The condenser (1), consisting of tubes (3), ribs (4) and collector tubes (2), is produced by welding. According to the invention, the drying/filtering unit (11) is introduced into the collector (5) before the welding process and is positioned therein or connected thereto in a fixed manner. The collector (5) is then closed and the entire condenser (1) is welded. The connection between the drying/filtering unit (11) and the collector (5) is thus carried out before or during the welding process by means of welding. The invention is preferably used for air conditioning systems in motor vehicles.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: May 16, 2006
    Assignee: BEHR GmbH & Co.
    Inventors: Patrick Jung, Siegfried Tews
  • Publication number: 20040244410
    Abstract: The invention relates to a condenser (1) comprising an integrated collector (5) which is arranged parallel to one of the collector tubes (2) and is connected to said connector tube via two overflow openings (8 and 9). Said collector (5) is used to receive a drying/filtering unit (11). The condenser (1), consisting of tubes (3), ribs (4) and collector tubes (2), is produced by welding. According to the invention, the drying/filtering unit (11) is introduced into the collector (5) before the welding process and is positioned therein or connected thereto in a fixed manner. The collector (5) is then closed and the entire condenser (1) is welded. The connection between the drying/filtering unit (11) and the collector (5) is thus carried out before or during the welding process by means of welding. The invention is preferably used for air conditioning systems in motor vehicles.
    Type: Application
    Filed: April 9, 2004
    Publication date: December 9, 2004
    Inventors: Patrick Jung, Siegfried Tews
  • Patent number: 6505481
    Abstract: The present invention relates to a refrigerant condenser for motor vehicle air-conditioning systems of the type that include a tube/fin block, header tubes arranged on both sides of the tube/fin block and a collector arranged parallel to one header tube, wherein the header tubes have partitions for creating a multi-pass flow of the refrigerant, and the tube/fin block has an upper condensation region and a lower supercooling region. The collector is flow-connected via passage orifices to the condensation region, on the one hand, and to the supercooling region, on the other hand. The collector has approximately the same diameter or the same cross section as the adjacent header tube, and an additional container of larger cross section or larger diameter is provided for storing refrigerant and/or for receiving a dryer and/or filter.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: January 14, 2003
    Assignee: Behr GmbH & Co.
    Inventors: Olaf Neumann, Siegfried Tews
  • Publication number: 20020083735
    Abstract: The present invention relates to a refrigerant condenser for motor vehicle air-conditioning systems of the type that include a tube/fin block, header tubes arranged on both sides of the tube/fin block and a collector arranged parallel to one header tube, wherein the header tubes have partitions for creating a multi-pass flow of the refrigerant, and the tube/fin block has an upper condensation region and a lower supercooling region. The collector is flow-connected via passage orifices to the condensation region, on the one hand, and to the supercooling region, on the other hand. The collector has approximately the same diameter or the same cross section as the adjacent header tube, and an additional container of larger cross section or larger diameter is provided for storing refrigerant and/or for receiving a dryer and/or filter.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 4, 2002
    Inventors: Olaf Neumann, Siegfried Tews
  • Patent number: 6349562
    Abstract: The application discloses a collection vessel 1 for a condenser of an air-conditioning system, preferably for motor vehicles. The collection vessel 1 holds in its interior a drier that can be exchanged via an opening which can be closed by means of a releasable lid. The lid is designed as a piston-like, cylindrical stopper 3, and be sealed and guided in an axially displaceable manner in a corresponding hole in the collection vessel 1, 2. The stopper 3 is pressed outwardly against a securing ring 9 by the internal pressure (pi) in the vessel, which securing ring is fixed in an annular groove 10 in the collection vessel 2 and is secured against release by a blocking shoulder 8 on the stopper 3. Due to this measure, the lid 3 of the collection vessel 2 cannot be removed when pressure is prevailing inside the vessel. Only when the vessel is depressurized can the securing ring and therefore also the stopper 3 be removed, so that a drier cartridge can be exchanged.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: February 26, 2002
    Assignee: Behr GmbH & Co.
    Inventors: Martin Kaspar, Friedrich Krehl, Kurt Molt, Siegfried Tews
  • Patent number: 5537839
    Abstract: In a condenser for a vehicle air-conditioning system having a pipe-rib block (10) provided on both sides with collecting pipes (13, 14) which are divided by means of partitions (17, 18) into an upper condensing portion for gaseous refrigerant and a lower supercooling portion for liquid refrigerant, there is disposed parallel to a collecting pipe (14) a collector (23), which is connected by a first connecting opening (24) to the condensing portion and by a second connecting opening (25) to the supercooling portion.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: July 23, 1996
    Assignee: Behr GmbH & Co.
    Inventors: Roland Burk, Siegfried Tews