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).
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Patent number: 7797962Abstract: 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 ambienType: GrantFiled: June 28, 2006Date of Patent: September 21, 2010Assignee: Liebherr-Aerospace Lindenberg GmbHInventors: Hubert Kresser, Markus Hirschmann, Alfred Sauterleute, David Lavergne, Laurent Hartenstein
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Publication number: 20090117840Abstract: 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 ambienType: ApplicationFiled: June 28, 2006Publication date: May 7, 2009Inventors: Hubert Kresser, Markus Hirschmann, Alfred Sauterleute, David Lavergne, Laurent Hartenstein
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Patent number: 7017365Abstract: 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: GrantFiled: January 15, 2003Date of Patent: March 28, 2006Assignee: Liebherr-Aerospace Lindenberg GmbHInventors: Joachim Haas, Alfred Sauterleute
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Patent number: 6729156Abstract: 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: GrantFiled: April 22, 2002Date of Patent: May 4, 2004Assignee: Liebherr-Aerospace Lindenberg GmbHInventors: Alfred Sauterleute, Joachim Haas, Norbert Brutscher, Stefan Hofer
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Publication number: 20030177781Abstract: 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: ApplicationFiled: January 15, 2003Publication date: September 25, 2003Inventors: Joachim Haas, Alfred Sauterleute
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Patent number: 6595010Abstract: 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: GrantFiled: July 26, 2001Date of Patent: July 22, 2003Assignees: Liebherr-Aerospace Lindenberg GmbH, Honeywell International Inc.Inventors: Alfred Sauterleute, Michel Jonqueres
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Patent number: 6519969Abstract: 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: GrantFiled: December 27, 2000Date of Patent: February 18, 2003Assignee: Liebherr-Aerospace Lindenberg GmbHInventor: Alfred Sauterleute
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Patent number: 6505474Abstract: 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: GrantFiled: September 26, 2001Date of Patent: January 14, 2003Assignee: Liebherr-Aerospace, Lindenberg GmbHInventors: Alfred Sauterleute, Engelbert Schlagenhaft
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Publication number: 20020152765Abstract: 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: ApplicationFiled: April 22, 2002Publication date: October 24, 2002Applicant: Liebherr-Aerospace Lindenberg GmbhInventors: Alfred Sauterleute, Joachim Haas, Norbert Brutscher, Stefan Hofer
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Publication number: 20020088245Abstract: 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: ApplicationFiled: July 26, 2001Publication date: July 11, 2002Inventors: Alfred Sauterleute, Michel Jonqueres
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Publication number: 20020035838Abstract: 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: ApplicationFiled: September 26, 2001Publication date: March 28, 2002Inventors: Alfred Sauterleute, Engelbert Schlagenhaft
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Publication number: 20010004837Abstract: 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: ApplicationFiled: December 27, 2000Publication date: June 28, 2001Inventor: Alfred Sauterleute
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Patent number: 6199387Abstract: 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: GrantFiled: July 30, 1999Date of Patent: March 13, 2001Assignee: Liebherr-Aerospace Lindenberg GmbHInventor: Alfred Sauterleute