Patents by Inventor Stefan Wischhusen

Stefan Wischhusen 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).

  • Refrigerating device, in particular for aircraft
    Patent number: 8752398
    Abstract: The invention relates to a refrigerating device (10), in particular for an aircraft, having a refrigerant circuit, in which a refrigerant container (12), an expansion valve (14), an evaporator (16), a compressor (20) and a condenser (22) are disposed. To save energy during operation and to increase the reliability and availability of the refrigerating device (10), in the refrigerant circuit there is a compressor bypass line (26), in which a bypass valve (18) is disposed, and a refrigerant pump (30) that is disposed downstream of the condenser (22) and upstream of the evaporator (16). It is possible to dispense with the refrigerant pump (30) if the condenser (22) is disposed at a higher level than the evaporator (16) in the refrigerant circuit.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 17, 2014
    Assignee: Airbus Deutschland GmbH
    Inventors: Wilson Willy Casas Noriega, Stefan Wischhusen, Wolfgang Ebigt, Dirk Kastell
  • REFRIGERATING DEVICE, IN PARTICULAR FOR AIRCRAFT
    Publication number: 20100326105
    Abstract: The invention relates to a refrigerating device (10), in particular for an aircraft, having a refrigerant circuit, in which a refrigerant container (12), an expansion valve (14), an evaporator (16), a compressor (20) and a condenser (22) are disposed. To save energy during operation and to increase the reliability and availability of the refrigerating device (10), in the refrigerant circuit there is a compressor bypass line (26), in which a bypass valve (18) is disposed, and a refrigerant pump (30) that is disposed downstream of the condenser (22) and upstream of the evaporator (16). It is possible to dispense with the refrigerant pump (30) if the condenser (22) is disposed at a higher level than the evaporator (16) in the refrigerant circuit.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 30, 2010
    Inventors: Wilson Willy Casas Noriega, Stefan Wischhusen, Wolfgang Ebigt, Dirk Kastell