Patents Assigned to Water-Gen Ltd.
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Publication number: 20190154350Abstract: A heat exchanger comprises a stack of sets of fins and tubes attached to or encompassed by embossed plates comprising a void. In some embodiments, the fins overlap the void having a peripheral margin of the fin attached to the peripheral margin around the void. In some embodiments, the fins comprise through fluid apertures allowing lateral fluid flow. In some embodiments, the plates comprise lateral peripheral protrusions enabling selective sealing of gaps between adjacent stacked plates by unselective application of heat or adhesive to a face of the heat exchanger. In some embodiments, the plates comprise uniformizing protrusions in a fluid inlet and/or outlet zone that reduce the amount of non-uniform fluid mass flow between different channel protrusions of heat exchanging zones of the set. Also disclosed are methods for assembly and selective sealing of the heat exchanger and an apparatus comprising the same.Type: ApplicationFiled: November 27, 2017Publication date: May 23, 2019Applicant: WATER-GEN LTD.Inventors: Sharon DULBERG, Arye KOHAVI, Eliahu MAIER
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Publication number: 20190112752Abstract: A dryer apparatus is disclosed comprising a container having a container inlet and outlet, a pump that is configured to motivate a first air-vapor mixture flow via the container inlet and via the container outlet, a heating device configured to heat the first air-vapor mixture, a selector with at least two states, a compressor that is configured to compress and motivate a part of the first air-vapor mixture flow as a second air-vapor mixture flow, to flow through a first heat exchanger and to flow through a second heat exchanger and a pressure reducing device that is configured to reduce the pressure of said second air-vapor mixture downstream said first heat exchanger. The selector is configured to direct most of the first air-vapor mixture to flow in a closed cycle through the container, or configured to exchange most of the first air-vapor mixture with air located outside the apparatus.Type: ApplicationFiled: December 6, 2018Publication date: April 18, 2019Applicant: WATER-GEN LTD.Inventors: Sharon DULBERG, Arye Kohavi
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Patent number: 10151060Abstract: A dryer apparatus is disclosed comprising a container having a container inlet and outlet, a pump that is configured to motivate a first air-vapor mixture flow via the container inlet and via the container outlet, a heating device configured to heat the first air-vapor mixture, a selector with at least two states, a compressor that is configured to compress and motivate a part of the first air-vapor mixture flow as a second air-vapor mixture flow, to flow through a first heat exchanger and to flow through a second heat exchanger and a pressure reducing device that is configured to reduce the pressure of said second air-vapor mixture downstream said first heat exchanger. The selector is configured to direct most of the first air-vapor mixture to flow in a closed cycle through the container, or configured to exchange most of the first air-vapor mixture with air located outside the apparatus.Type: GrantFiled: November 24, 2015Date of Patent: December 11, 2018Assignee: WATER-GEN LTDInventors: Sharon Dulberg, Arye Kohavi
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Publication number: 20180283803Abstract: A drying apparatus includes a compartment for containing objects to be dried, a closed-loop air pathway and a regeneration heat exchanger. The closed-loop air pathway includes a cooling element and a heating element, and is configured to extract from the compartment air that includes moisture in the form of vapor, to evacuate heat energy from the extracted air to an external fluid flow by cooling using the cooling element so as to remove at least some of the moisture from the air, to reheat the air using the heating element, and to re-introduce the reheated air into the compartment. The regeneration heat exchanger is inserted in the closed-loop air pathway and is configured to transfer heat from the air extracted from the compartment to the air exiting the cooling element in the closed-loop air pathway.Type: ApplicationFiled: May 24, 2018Publication date: October 4, 2018Applicant: WATER-GEN LTD.Inventors: Arye KOHAVI, Sharon DULBERG
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Publication number: 20180238641Abstract: Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.Type: ApplicationFiled: April 24, 2018Publication date: August 23, 2018Applicant: WATER-GEN LTD.Inventors: Arye KOHAVI, Sharon DULBERG
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Patent number: 10006721Abstract: A drying apparatus includes a compartment for containing objects to be dried, a closed-loop air pathway and a regeneration heat exchanger. The closed-loop air pathway includes a cooling element and a heating element, and is configured to extract from the compartment air that includes moisture in the form of vapor, to evacuate heat energy from the extracted air to an external fluid flow by cooling using the cooling element so as to remove at least some of the moisture from the air, to reheat the air using the heating element, and to re-introduce the reheated air into the compartment. The regeneration heat exchanger is inserted in the closed-loop air pathway and is configured to transfer heat from the air extracted from the compartment to the air exiting the cooling element in the closed-loop air pathway.Type: GrantFiled: January 12, 2015Date of Patent: June 26, 2018Assignee: WATER-GEN LTD.Inventors: Arye Kohavi, Sharon Dulberg
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Patent number: 9976817Abstract: Planar element adapted to form, when stacked with a plurality of other such elements, a heat exchanger, comprising an inlet region, a first zone adapted to direct flow from the inlet region towards a second zone, a second zone comprising at least one cutout in the plane of the planar element, adapted to accommodate a cooling core, a third zone, adapted to direct flow from the second zone towards an outlet region and an outlet region, the planar element comprising a first blockage protrusion disposed along a first group of said side edges, the first group comprising at least a side edge adjacent to said outlet region, and a second blockage protrusion disposed along a second group of said side edges, the second group comprising at least a side edge adjacent to said inlet region.Type: GrantFiled: September 21, 2015Date of Patent: May 22, 2018Assignee: WATER-GEN LTD.Inventors: Arye Kohavi, Sharon Dulberg
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Patent number: 9140396Abstract: Dehumidification apparatus including a cooled core coupled to an external cooling source, at least first and second relatively humid air inlet pathways leading to the cooled core and at least first and second relatively dry air outlet pathways leading from the cooled core, the outlet pathways being in heat exchange propinquity with the inlet pathways whereby relatively humid air in the inlet pathways is precooled upstream of the cooled core and relatively dry air in the outlet pathways is heated downstream of the cooled core, the cooled core defining a multiplicity of mutually adjacent cooling pathways extending therethrough which are each coupled to one of the inlet pathways and to one of the outlet pathways such that air passes through adjacent ones of the mutually adjacent cooling pathways in mutually different directions.Type: GrantFiled: March 15, 2013Date of Patent: September 22, 2015Assignee: WATER-GEN LTD.Inventors: Arye Kohavi, Sharon Dulberg
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Publication number: 20140261764Abstract: Dehumidification apparatus including a cooled core coupled to an external cooling source, at least first and second relatively humid air inlet pathways leading to the cooled core and at least first and second relatively dry air outlet pathways leading from the cooled core, the outlet pathways being in heat exchange propinquity with the inlet pathways whereby relatively humid air in the inlet pathways is precooled upstream of the cooled core and relatively dry air in the outlet pathways is heated downstream of the cooled core, the cooled core defining a multiplicity of mutually adjacent cooling pathways extending therethrough which are each coupled to one of the inlet pathways and to one of the outlet pathways such that air passes through adjacent ones of the mutually adjacent cooling pathways in mutually different directions.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: WATER-GEN LTD.Inventors: Arye KOHAVI, Sharon DULBERG
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Publication number: 20120221198Abstract: A system of managing water production in a vehicle. The system comprises a water conducting element set to receive and conduct water generated as a product of an operation of a vehicle air conditioner of the vehicle to a water container, a gauge that measures the amount of water in the water container, and a manager that receives the measurement and instructs the operation accordingly.Type: ApplicationFiled: August 30, 2010Publication date: August 30, 2012Applicant: WATER-GEN LTD.Inventors: Arye Kohavi, Avi Peretz, Eliahu Maier
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Publication number: 20110048039Abstract: A system of managing water production in a vehicle. The system comprises a water conducting element set to receive and conduct water generated as a product of an operation of a vehicle air conditioner of the vehicle to a water container, a gauge that measures the amount of water in the water container, and a manager that receives the measurement and instructs the operation accordingly.Type: ApplicationFiled: January 13, 2010Publication date: March 3, 2011Applicant: Water-Gen Ltd.Inventors: Arye Kohavi, Avi Peretz