Patents Assigned to Webasto Thermosysteme GmbH
  • Patent number: 7240725
    Abstract: A device for climate control of a vehicle is provided which includes a coolant circuit in which coolant flows through a compressor, a condenser, and an evaporator; a heat transfer medium circuit in which heat transfer medium flows through a heat source and a heat exchanger; and a heat/cold reservoir in which the evaporator and the heat exchanger are located. The device of the present invention provides an improved and comparatively economical approach to climate control in the area of a driver's bed in a motor vehicle interior by, at least in part, using a heating/cooling surface for a driver's bed and/or vehicle interior wall, which is integrated into the heat transfer medium circuit such that the heat transfer medium can flow selectively through the heating/cooling surface, or the heat transfer medium which is conveyed by the heat source can flow through the heating/cooling surface.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 10, 2007
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Oliver Horn, Noureddine Khelifa, Wolfgang Kraemer
  • Publication number: 20070125514
    Abstract: A device for climate control of a vehicle is provided which includes a coolant circuit in which coolant flows through a compressor, a condenser, and an evaporator; a heat transfer medium circuit in which heat transfer medium flows through a heat source and a heat exchanger; and a heat/cold reservoir in which the evaporator and the heat exchanger are located. The device provides an improved and comparatively economical approach to climate control in the area of a driver's bed in a motor vehicle interior by, at least in part, using multiple heating/cooling surfaces for a driver's bed and/or vehicle interior wall, which is integrated into the heat transfer medium circuit in a parallel relationship to each other such that the heat transfer medium can flow selectively through the heating/cooling surfaces, or the heat transfer medium which is conveyed by the heat source can flow through the heating/cooling surfaces.
    Type: Application
    Filed: February 1, 2007
    Publication date: June 7, 2007
    Applicant: WEBASTO THERMOSYSTEME GMBH
    Inventors: Oliver HORN, Noureddine KHELIFA, Wolfgang KRAMER
  • Patent number: 7175932
    Abstract: A fuel cell system in which fuel is supplied to a fuel cell arrangement and/or a reformer by an injector, where the anode exhaust gas of the fuel cell arrangement is recirculated to the injector. The fuel cell arrangement is connected to an intake opening of the injector which also has an inlet opening, a following nozzle, a following diffuser with an outlet opening and an intake opening for feed of the anode exhaust gas of the fuel cell arrangement. A chamber is formed between the nozzle and the entry area of the diffuser, and a slide is positioned within the chamber to move from a first slide position permiting the passage of the fuel from the nozzle to the outlet opening and a second slide position where the passage of fuel is prevented.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: February 13, 2007
    Assignee: Webasto Thermosysteme GmbH
    Inventor: Matthias Boltze
  • Publication number: 20040131913
    Abstract: A fuel cell system in which fuel is supplied to a fuel cell arrangement and/or a reformer by an injector, where the anode exhaust gas of the fuel cell arrangement is recirculated to the injector. The fuel cell arrangement is connected to an intake opening of the injector which also has an inlet opening, a following nozzle, a following diffuser with an outlet opening and an intake opening for feed of the anode exhaust gas of the fuel cell arrangement. A chamber is formed between the nozzle and the entry area of the diffuser, and a slide is positioned within the chamber to move from a first slide position permiting the passage of the fuel from the nozzle to the outlet opening and a second slide position where the passage of fuel is prevented.
    Type: Application
    Filed: October 9, 2003
    Publication date: July 8, 2004
    Applicant: WEBASTO THERMOSYSTEME GmbH
    Inventor: Matthias Boltze
  • Publication number: 20040123976
    Abstract: A device for climate control of a vehicle is provided which includes a coolant circuit in which coolant flows through a compressor, a condenser, and an evaporator; a heat transfer medium circuit in which heat transfer medium flows through a heat source and a heat exchanger; and a heat/cold reservoir in which the evaporator and the heat exchanger are located. The device of the present invention provides an improved and comparatively economical approach to climate control in the area of a driver's bed in a motor vehicle interior by, at least in part, using a heating/cooling surface for a driver's bed and/or vehicle interior wall, which is integrated into the heat transfer medium circuit such that the heat transfer medium can flow selectively through the heating/cooling surface, or the heat transfer medium which is conveyed by the heat source can flow through the heating/cooling surface.
    Type: Application
    Filed: September 10, 2003
    Publication date: July 1, 2004
    Applicant: Webasto Thermosysteme GmbH
    Inventors: Oliver Horn, Noureddine Khelifa, Wolfgang Kraemer
  • Publication number: 20040086436
    Abstract: A mixture formation means for the reformer of a fuel cell system or for a heater. The fuel feed includes a pressure impulse injection means and the mixture formation area is a swirl chamber having a discharge nozzle connected to the pressure impulse injection device. Also included is a fuel heater for preheating the fuel before injection in order to achieve complete vaporization of the fuel, such as diesel fuel.
    Type: Application
    Filed: September 23, 2003
    Publication date: May 6, 2004
    Applicant: Webasto Thermosysteme GmbH
    Inventors: Matthias Boltze, Christian Wunderlich, Matthias Jahn
  • Patent number: 6524497
    Abstract: An ice storage element (28), especially for the auxiliary air conditioning system of a motor vehicle, with a hollow body for forming at least one storage space (34) for an ice storage medium (36) which is liquid in the thawed state and which can be brought into heat-conductive connection with a refrigerant. The ice storage medium (36) contains a thickening agent to suppress sloshing of the ice storage medium (36) in the thawed state and to ensure freezing of the ice storage medium (36) in the form of a slush.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: February 25, 2003
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Peter Glaser, Albrecht Otte, Andreas Ludwig
  • Patent number: 6364212
    Abstract: The invention relates to a heating device, especially for a motor vehicle, with a burner, to which fuel is supplied from a tank via a fuel line by means of a pump, especially a piston pump, and with an electronically controllable valve means which is inserted into the fuel line and which can be controlled by a control means. To ensure problem-free feed of fuel to the burner independently of the pump pressure, a pressure reservoir is assigned to the valve means, fuel being delivered by means of the pump controlled in a clocked manner by the control unit, to the pressure reservoir and from the latter to the burner, without the action of the pump.
    Type: Grant
    Filed: November 26, 1999
    Date of Patent: April 2, 2002
    Assignee: Webasto Thermosysteme GmbH
    Inventor: Fritz Widemann
  • Patent number: 6321870
    Abstract: An air intake muffler for a heater, especially a motor vehicle heater, with a hollow body (7) of sound-absorbing material which is surrounded by a muffler chamber (2) and is penetrated by a cavity (8) which is flush with an inlet connection (9) and an outlet (10) of the muffler chamber (2) which can be connected to an air intake opening of the heater. To reliably prevent water or moisture from penetrating into an assembly downstream of the muffler (1), it is provided that the muffler chamber (2) is downstream of a water separator which has a water separation chamber (3) with at least one air intake opening (20 to 23) in its wall located laterally offset relative to the inlet of the muffler chamber (2) and which is separated from the muffler chamber by a deflector wall (24 to 27) which prevents direct flow from the air intake opening to the inlet connection (9).
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: November 27, 2001
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Josef Waronitza, Hansjörg Kauschke, Michael Walther, Tilman Schattat, Werner Zimmermann
  • Patent number: 6254179
    Abstract: A climate controlled vehicle seat for interior climate comfort in motor vehicles, more specifically, the ease of climate control via a motor vehicle seat, is increased based upon a fluid for transport of heat or cool to a corresponding heating or cooling element, or a combined heating/cooling element which is installed in the motor vehicle seat and which is connected to a heat or cold source which is present in the vehicle for other heating or cooling purposes. This heating or cooling of the motor vehicle seat is favorable in terms of energy and is also, with respect to health, safe to use. The corresponding heating and cooling fluid is taken from the secondary circuit of a heat exchanger which is preferably filled with pure water, i.e. with water which does not contain any harmful additives.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: July 3, 2001
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Franz-Josef Kortüm, Michael Kempter, Günther Hammerschmid
  • Patent number: 6094933
    Abstract: An ice storage element (28) with at least one profiled body (29B) surrounded by an exterior wall (37) for forming at least one storage space (34) for an ice storage medium which can be brought into heat-exchange connection with a refrigerant. For more economical configuration of this ice storage element and improved heat transfer, at least one refrigerant pipe (30) is integrated into the profiled body (29B) and the profiled body is formed of a metal. The profiled body (29B) is preferably made as an extruded aluminum section with integrated inside ribs (33) and/or external ribs (31, 32).
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: August 1, 2000
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Wolfgang Forsthuber, Andreas Krompass, Gunther Hammerschmid
  • Patent number: 6089465
    Abstract: A heater, especially an auxiliary motor vehicle heater, with a burner in a combustion chamber (2) which is surrounded by a generally pot-shaped, die cast heat exchanger (4) which has inner and outer parts (5, 6) and between which an intermediate space (11, 12) is formed through which a heat exchange medium flows, the combustion gases emerging from the combustion chamber (2) being discharged via a exhaust outlet connection (23). To increase the heat transfer efficiency and to minimize the size of the heater, on the outside of the open end of the heat exchanger inner part (5) a ring (15) is provided which projects, spaced apart from the outer peripheral wall (7) of the inner part, toward the bottoms (8, 10) of the heat exchanger parts. The intermediate space (11, 12) continues from between the peripheral walls (7, 9) of the inner and outer heat exchanger parts to between the ring (15) and the peripheral wall (7) of the inner part (5).
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: July 18, 2000
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Stephan Habijanec, Maximilian Hellwig
  • Patent number: 6078107
    Abstract: A process and a device for shutting off of a motor vehicle heating device in which a liquid heat exchange medium is heated by a heating device and is delivered to a heat exchanger of the heating device by means of a circulating pump driven by an electric motor. To prevent damage to the heating device or the circulating pump when the heat exchange medium circuit is not adequately filled with liquid heat exchange medium or in the case of poor venting, a value which at least indirectly indicates the power consumption of the electric motor is sent to a control device as a signal indicative of the existence of a delivery fault associated with the circulating pump.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: June 20, 2000
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Gunter Kahnau, Helmut Nigst
  • Patent number: 5993191
    Abstract: A heater, especially a motor vehicle heater which can be operated independently of the engine, with a burner which is supplied with fuel and air via a binary nozzle (2), a combustion chamber (1), and a multistage compressor (3, 4) for compressing the air. The entire mass flow of air necessary for combustion in the combustion chamber (1) is sent to at least one first compressor stage (3) for compression to a first pressure level, and the air mass flow compressed in this way is divided into a first component flow supplied directly to the combustion chamber (1), and a second component flow which is compressed in at least one second compressor stage (4) to a second pressure level and sent to the binary nozzle (2) as the fuel atomization air mass flow.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: November 30, 1999
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Ingrid Lanzl, Christian Hubbauer, Stefan Ullerich
  • Patent number: 5974803
    Abstract: The invention relates to a thermogenerator for power production in conjunction with a heating device of the combustion type, the hot contact point of at least one thermocouple of the thermogenerator being at a flue gas collection box and the cold contact point of thermocouple being on a heat exchange medium collection box. To guarantee high efficiency of the thermogenerator with a compact structure, it is made as a block-shaped module with plate-shaped thermocouple units sandwiched between the flue gas collection box and the heat exchange medium collection box.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: November 2, 1999
    Assignee: Webasto Thermosysteme GmbH
    Inventor: Gunther Hammerschmid
  • Patent number: 5934092
    Abstract: A device for cooling a motor vehicle interior (2) has a first refrigerant loop with a compressor (8), condenser (10), and at least a first evaporator (13). The device furthermore has a second refrigerant loop with at least one more evaporator which is joined to an ice reservoir to form a structural unit (17, 19, 21) and which can be connected in parallel to the first evaporator (13) by at least one valve (15). To enable simple and comfortable static climate control, the structural unit (17, 19, 21) is located as a flat element in at least one wall (4, 3, 5) of the motor vehicle interior and can be brought into a direct heat-transfer connection to the air of the motor vehicle interior.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: August 10, 1999
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Andreas Krompass, Gunther Hammerschmid, Helmut Mayer, Wolfgang Forsthuber
  • Patent number: 5797648
    Abstract: A roof hatch, particularly to a roof hatch intended for vehicle roofs. The roof hatch has a cover, which, for exposing a roof opening defined by a frame in a fixed roof surface, is alternately, or also, simultaneously, tiltable at two opposite sides. In order to facilitate a low-friction and low-loss actuation with minor force, the push rods actuating the extension devices, in accordance with the invention, are pivotally supported with one end, and with their other ends are guided in cam surfaces of a driven cam disk which is centrally supported on the inner side of the cover, and are additionally guided in guideways fixed to the cover, which essentially have circular shape.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: August 25, 1998
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Gunnar Fiegel, Ulf Plettrichs, Alexander Walter, Thomas Schroferl, Hossein Soltanmoradi
  • Patent number: 5788150
    Abstract: A motor vehicle heating device with a burner which has a combustion chamber which is coaxially surrounded, at least in part, by a heat exchanger which has a closed end at an end of the combustion chamber opposite that at which the burner is located, and which has an annular space, which is defined between an outer wall and inner wall, through which a liquid heat transfer agent flows. The heat exchanger is made of a one-piece construction, so that the end of the heat exchanger joins its outer and inner walls, and at the same time, its inside faces the combustion chamber. By this construction, the liquid-carrying part is essentially formed by a single part, so that no integrity problems can occur between the liquid-carrying annular space and the exhaust gas-carrying interior of the heating device and production costs are reduced.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: August 4, 1998
    Assignee: Webasto Thermosysteme GmbH
    Inventor: Michael Bittmann
  • Patent number: 5738506
    Abstract: The invention relates to motor vehicle heating device with a burner, to which combustion air is supplied via combustion air inlet openings by means of a fan and to which furthermore fuel gas is supplied via a fuel gas supply line, combustion air and fuel gas entering on the intake side of the fan. It is provided according to the invention for a simpler structure and good mixing of the fuel gas/combustion air mixture that entry of fuel gas is controlled by means of a valve or switch controlled by the negative pressure of the fan. Fuel gas is supplied in doing so, preferably, with a negative pressure which is less than atmospheric pressure. For especially simple control of gas supply, there is a membrane which causes the fuel gas supply line to close when the fan stops.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: April 14, 1998
    Assignees: Webasto Thermosysteme GmbH, Webasto Thermosystems Ltd.
    Inventors: Ernst Mosig, Gunter Kahnau, Shahrzad Rahbar, Helmut Schmitter, Chris Kulaga, Frank David Williamson
  • Patent number: 5727730
    Abstract: The invention relates to an air heating device with a hot air fan located in a housing to deliver hot air from an air inlet opening which is located on the face side via a heat exchanger to a hot air exit opening located on the opposite face.The object of the invention is to devise an air heating device which can always intake a sufficient amount of hot air regardless of its installation position without additional parts.This object is achieved by the fact that the housing near the face air inlet opening on its outside periphery on at least one side has additional air inlet openings.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: March 17, 1998
    Assignee: Webasto Thermosysteme GmbH
    Inventors: Stephan Habijanec, Christine Sallinger, Rudiger Galtz