Patents by Inventor Alfred Sauterleute

Alfred Sauterleute 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: 7797962
    Abstract: The present disclosure relates to a method of operating an aircraft system, in particular for the purpose of fresh air supply, air-conditioning and pressurization of an aircraft cabin, having a first compressed air source formed by a first compressor charged with ambient air, ram air and/or precompressed air and driven by means of at least one motor and/or of at least one turbine and whose outlet is in direct or indirect communication with an aircraft cabin, said aircraft system having at least one second compressed air source whose outlet can be connected directly or indirectly to the aircraft cabin, wherein only the first compressed air source is in communication with the aircraft cabin in a first operating mode, wherein both the first and the second compressed air sources are in communication with the aircraft cabin in a second operating mode, and wherein the selection of the operating mode depends on the pressure of the ambient air such that the first operating mode is set at a high pressure of the ambien
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: September 21, 2010
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Hubert Kresser, Markus Hirschmann, Alfred Sauterleute, David Lavergne, Laurent Hartenstein
  • Publication number: 20090117840
    Abstract: The present disclosure relates to a method of operating an aircraft system, in particular for the purpose of fresh air supply, air-conditioning and pressurization of an aircraft cabin, having a first compressed air source formed by a first compressor charged with ambient air, ram air and/or precompressed air and driven by means of at least one motor and/or of at least one turbine and whose outlet is in direct or indirect communication with an aircraft cabin, said aircraft system having at least one second compressed air source whose outlet can be connected directly or indirectly to the aircraft cabin, wherein only the first compressed air source is in communication with the aircraft cabin in a first operating mode, wherein both the first and the second compressed air sources are in communication with the aircraft cabin in a second operating mode, and wherein the selection of the operating mode depends on the pressure of the ambient air such that the first operating mode is set at a high pressure of the ambien
    Type: Application
    Filed: June 28, 2006
    Publication date: May 7, 2009
    Inventors: Hubert Kresser, Markus Hirschmann, Alfred Sauterleute, David Lavergne, Laurent Hartenstein
  • Patent number: 7017365
    Abstract: The present invention relates to a system for dehumidification in air conditioners comprising an expansion stage, a condenser and comprising a water separator disposed upstream of the expansion stage. A dehumidification system with reduced system construction volume, reduced weight and increased reliability and improved system efficiency at lower cost is formed in accordance with the invention in that the condenser is formed by a heat exchanger (RAM heat exchanger) cooled with ambient air or stagnation air or with another fluid, with the exception of process air, to which the compressed air to be dehumidified is fed on the compressed air side.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: March 28, 2006
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Joachim Haas, Alfred Sauterleute
  • Patent number: 6729156
    Abstract: The invention relates to a ram air duct for an aeroplane air conditioning system having an inlet channel which can be closed by an inlet valve and in which at least one heat exchanger is arranged, having a blower arranged in a blower chamber and an outlet passage closable by an outlet valve. In accordance with the invention, the outlet passage is divided into two separately extending passages of which one is guided as a blower outlet passage up to the blower into the blower chamber and the other is designed as a bypass passage. The outlet valve only closes the bypass passage in the closed state.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 4, 2004
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventors: Alfred Sauterleute, Joachim Haas, Norbert Brutscher, Stefan Hofer
  • Publication number: 20030177781
    Abstract: The present invention relates to a system for dehumidification in air conditioners comprising an expansion stage, a condenser and comprising a water separator disposed upstream of the expansion stage. A dehumidification system with reduced system construction volume, reduced weight and increased reliability and improved system efficiency at lower cost is formed in accordance with the invention in that the condenser is formed by a heat exchanger (RAM heat exchanger) cooled with ambient air or stagnation air or with another fluid, with the exception of process air, to which the compressed air to be dehumidified is fed on the compressed air side.
    Type: Application
    Filed: January 15, 2003
    Publication date: September 25, 2003
    Inventors: Joachim Haas, Alfred Sauterleute
  • Patent number: 6595010
    Abstract: This invention relates to an air-conditioning system for passenger aircraft for conditioning humidity-containing air under excess pressure for air-conditioning a passenger aircraft cabin, comprising at least one compressor and two expansion turbines, where in accordance with the invention a droplet coalescing device with succeeding water separator is disposed between the expansion turbines.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: July 22, 2003
    Assignees: Liebherr-Aerospace Lindenberg GmbH, Honeywell International Inc.
    Inventors: Alfred Sauterleute, Michel Jonqueres
  • Patent number: 6519969
    Abstract: An air-conditioning system for airplanes is proposed in which a portion of the fresh airflow to be prepared is tapped at high pressure from a power unit and another portion is sucked in from the surroundings. The energy potential of the tapped airflow is utilized to compress the ambient air. The compressed ambient air and the tapped air are mixed into a mixed airflow before the mixed airflow's pressure is expanded in one or more turbine stages (T1, T2). Water is separated from the mixed airflow between the mixing point (X) and the first turbine stage 1 (T1). In order to cool down the tapped airflow to a temperature at which water can be separated at all, the tapped airflow is guided past the entire cooler mixed airflow, preferably in two steps (REH, CON), namely once before the pressure expansion and another time after the pressure expansion of the mixed airflow in the first turbine stage (T1) .
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: February 18, 2003
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventor: Alfred Sauterleute
  • Patent number: 6505474
    Abstract: An air conditioning system for airplanes for conditioning moisture containing air, which is under excess pressure, for air conditioning an airplane cabin. The air conditioning system has at least one compressor, a first and a second air expansion turbine, and a water separator, which is disposed between the first and second air expansion turbine. To control the degree of moisture, the system adjusts selectively the degree of air expansion in the first air expansion turbine.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: January 14, 2003
    Assignee: Liebherr-Aerospace, Lindenberg GmbH
    Inventors: Alfred Sauterleute, Engelbert Schlagenhaft
  • Publication number: 20020152765
    Abstract: The invention relates to a ram air duct for an aeroplane air conditioning system having an inlet channel which can be closed by an inlet valve and in which at least one heat exchanger is arranged, having a blower arranged in a blower chamber and an outlet passage closable by an outlet valve. In accordance with the invention, the outlet passage is divided into two separately extending passages of which one is guided as a blower outlet passage up to the blower into the blower chamber and the other is designed as a bypass passage. The outlet valve only closes the bypass passage in the closed state.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 24, 2002
    Applicant: Liebherr-Aerospace Lindenberg Gmbh
    Inventors: Alfred Sauterleute, Joachim Haas, Norbert Brutscher, Stefan Hofer
  • Publication number: 20020088245
    Abstract: This invention relates to an air-conditioning system for passenger aircraft for conditioning humidity-containing air under excess pressure for air-conditioning a passenger aircraft cabin, comprising at least one compressor and two expansion turbines, where in accordance with the invention a droplet coalescing device with succeeding water separator is disposed between the expansion turbines.
    Type: Application
    Filed: July 26, 2001
    Publication date: July 11, 2002
    Inventors: Alfred Sauterleute, Michel Jonqueres
  • Publication number: 20020035838
    Abstract: The invention relates to an air conditioning system for airplanes for conditioning the moisture containing air, which is under excess pressure, for air conditioning an airplane cabin. Said air conditioning system comprises at least one compressor; a first and a second air expansion turbine; and a water separator, which is disposed between said first and second air expansion turbine. To control the degree of moisture, the invention provides that the degree of air expansion can be adjusted selectively in the first air expansion turbine.
    Type: Application
    Filed: September 26, 2001
    Publication date: March 28, 2002
    Inventors: Alfred Sauterleute, Engelbert Schlagenhaft
  • Publication number: 20010004837
    Abstract: An air-conditioning system for airplanes is proposed in which a portion of the fresh airflow to be prepared is tapped at high pressure from a power unit and another portion is sucked in from the surroundings. The energy potential of the tapped airflow is utilized to compress the ambient air. The compressed ambient air and the tapped air are mixed into a mixed airflow before the mixed airflow's pressure is dropped in one or more turbine stages (T1, T2). Water is separated from the mixed airflow between the mixing point (X) and the first turbine stage 1 (T1). In order to cool down the tapped airflow to a temperature at which water can be separated at all, the tapped airflow is guided past the entire cooler mixed airflow, preferably in two steps (REH, CON), namely once before the pressure drop and another time after the pressure drop of the mixed airflow in the first turbine stage (T1).
    Type: Application
    Filed: December 27, 2000
    Publication date: June 28, 2001
    Inventor: Alfred Sauterleute
  • Patent number: 6199387
    Abstract: An air-conditioning system in particular for aircraft is proposed wherein pressuized, moisture-containing air is conditioned for air-conditioning the cabin. The pressurized air is compressed further in two separate stages, dehumidified in a high-pressure water extraction cycle and subsequently expanded in one or two turbine stages. Depending on the design one can thereby achieve ice-free conditioned air or a high efficiency of the air-conditioning-system, in particular if two turbine stages are provided and the energy gained in the particular turbine stages is utilized regeneratively, distributed over the compressor stages.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: March 13, 2001
    Assignee: Liebherr-Aerospace Lindenberg GmbH
    Inventor: Alfred Sauterleute