Patents Assigned to Agam Energy Systems Ltd.
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Patent number: 10408503Abstract: A heat pump system comprises two units in fluid communication with each other, with each unit including a housing containing an air/brine heat exchanger that includes a direct contact air/brine heat exchanger pad. A brine inlet in the housing supplies liquid brine to the upper end of the air/brine heat exchanger so that the brine flows downwardly through the heat exchanger pad. An air inlet in the housing directs ambient air into the heat exchanger pad in a direction transverse to the flow of brine through the pad, and an air outlet discharges the air from the housing. A brine reservoir receives brine passed through the air/brine heat exchanger. A pair of brine/refrigerant heat exchangers is coupled to the brine reservoirs, for receiving brine from the reservoirs, and coupled to the brine inlets of different ones of the housings, and a refrigerant supply supplies refrigerant to the brine/refrigerant heat exchangers.Type: GrantFiled: November 8, 2016Date of Patent: September 10, 2019Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 9970293Abstract: A rotating liquid ring rotating casing gas turbine (10) has at least one liquid ring rotating casing (13) having an eccentrically mounted impeller (11) adapted to rotate within a surrounding liquid ring (14) so as to form chambers (15) of successively increasing volume between adjacent vanes of the impeller. A working fluid formed by high pressure gas is injected into the impeller where the chambers are narrow via a fluid inlet (19) within a static axial bore (23) of the impeller so as to rotate the impeller and in so doing the gas expands isentropically. A fluid outlet (20) within the static axial bore of the impeller and fluidly separated from the fluid inlet allows the working fluid to escape at low pressure and low temperature.Type: GrantFiled: August 24, 2016Date of Patent: May 15, 2018Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 9556871Abstract: A liquid-ring, rotating-casing compressor comprises a shaft carrying an impeller having a core and a plurality of radially extending vanes rotatably coupled to the shaft for rotation around a first axis, and a tubular casing mounted for rotation relative to the impeller around a second axis that is parallel to and offset from the first axis. The casing and impeller define a compression zone wherein edges of the vanes rotate in increasing proximity to an inner surface of the casing and an expansion zone wherein edges of the vanes rotate in increasing spaced-apart relationship along an inner surface of the casing. An inlet port communicates with the expansion zone, an outlet port communicates with the compression zone, and a drive imparts rotating motion to the casing. The eccentricity ecr of the casing relative to the impeller is between about (1?c)/4 and (1?c)/9, preferably less than half (1?c)/3.Type: GrantFiled: September 22, 2014Date of Patent: January 31, 2017Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 9453412Abstract: A rotating liquid ring rotating casing gas turbine (10) has at least one liquid ring rotating casing (13) having an eccentrically mounted impeller (11) adapted to rotate within a surrounding liquid ring (14) so as to form chambers (15) of successively increasing volume between adjacent vanes of the impeller. A working fluid formed by high pressure gas is injected into the impeller where the chambers are narrow via a fluid inlet (19) within a static axial bore (23) of the impeller so as to rotate the impeller and in so doing the gas expands isentropically. A fluid outlet (20) within the static axial bore of the impeller and fluidly separated from the fluid inlet allows the working fluid to escape at low pressure and low temperature.Type: GrantFiled: March 9, 2011Date of Patent: September 27, 2016Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 9181948Abstract: A liquid ring rotating casing compressor (LRRCC), including a shaft, an impeller having a core and a plurality of radially extending vanes rotatably coupled to the shaft, a tubular casing having an inner surface and an outer surface eccentrically rotatably disposed with the impeller and disc-shaped portions laterally coupled to the vanes and/or to the core. The casing defines with the impeller a compression zone, wherein edges of the vanes rotate in increasing proximity to an inner surface of the casing and an expansion zone and edges of the vanes rotate in increasing spaced-apart relationship along an inner surface of the casing. An inlet port communicates with the expansion zone, an outlet port communicates with the compression zone, and there is also provided a drive for rotating motion to the casing.Type: GrantFiled: June 12, 2006Date of Patent: November 10, 2015Assignee: AGAM ENERGY SYSTEMS LTD.Inventor: Gad Assaf
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Patent number: 7938888Abstract: A liquid desiccant regenerator system, including a desiccant/air heat exchanger having a first desiccant inlet and a desiccant reservoir. The reservoir has a first desiccant outlet, a second desiccant outlet and a second desiccant inlet. The first desiccant inlet and the first desiccant outlet are connectable to a heat source, the second desiccant inlet conducts diluted desiccant of the reservoir and the second desiccant outlet conducts concentrated desiccant from the reservoir. The second desiccant inlet and the desiccant outlet are connected to a desiccant/desiccant heat exchanger for applying heat to the diluted desiccant flowing into the reservoir. A dehumidification method is also provided.Type: GrantFiled: July 12, 2005Date of Patent: May 10, 2011Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 7681397Abstract: A heat engine, includes at least one Liquid Ring Rotating Casing Compressor (LRRCC) having a fluid inlet and a fluid outlet, a combustion chamber in fluid communication with the output of the LRRCC, and at least one expander having a fluid inlet and a fluid outlet. The fluid inlet communicates with the combustion chamber.Type: GrantFiled: July 28, 2005Date of Patent: March 23, 2010Assignee: Agam Energy Systems, Ltd.Inventor: Gad Assaf
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Publication number: 20090290993Abstract: A liquid ring rotating casing compressor (LRRCC), including a shaft, an impeller having a core and a plurality of radially extending vanes rotatably coupled to the shaft, a tubular casing having an inner surface and an outer surface eccentrically rotatably disposed with the impeller and disc-shaped portions laterally coupled to the vanes and/or to the core. The casing defines with the impeller a compression zone, wherein edges of the vanes rotate in increasing proximity to an inner surface of the casing and an expansion zone and edges of the vanes rotate in increasing spaced-apart relationship along an inner surface of the casing. An inlet port communicates with the expansion zone, an outlet port communicates with the compression zone, and there is also provided a drive for rotating motion to the casing.Type: ApplicationFiled: June 12, 2006Publication date: November 26, 2009Applicant: AGAM ENERGY SYSTEMS LTD.Inventor: Gad Assaf
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Patent number: 7430878Abstract: An air conditioning system for conditioning the space within an enclosure having at least one inlet and one outlet, the system comprising first and second liquid/air heat exchangers; the first heat exchanger having an opening for receiving fresh air from the environment and for propelling the fresh air through the first heat exchanger to exchange heat with the liquid before it is entered into the enclosure, and the second heat exchanger having an opening for receiving air from the enclosure and for propelling it through the second heat exchanger to exchange heat with the liquid before it is expelled into the atmosphere. There are also provided methods for air-conditioning an enclosed space and for evaporation of industrial wastes.Type: GrantFiled: November 11, 2003Date of Patent: October 7, 2008Assignee: Agam Energy Systems, Ltd.Inventor: Gad Assaf
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Publication number: 20070234743Abstract: A liquid desiccant regenerator system, including a desiccant/air heat exchanger having a first desiccant inlet and a desiccant reservoir. The reservoir has a first desiccant outlet, a second desiccant outlet and a second desiccant inlet. The first desiccant inlet and the first desiccant outlet are connectable to a heat source, the second desiccant inlet conducts diluted desiccant of the reservoir and the second desiccant outlet conducts concentrated desiccant from the reservoir. The second desiccant inlet and the desiccant outlet are connected to a desiccant/desiccant heat exchanger for applying heat to the diluted desiccant flowing into the reservoir. A dehumidification method is also provided.Type: ApplicationFiled: July 12, 2005Publication date: October 11, 2007Applicant: AGAM ENERGY SYSTEM LTD.Inventor: Gad Assaf
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Patent number: 6502807Abstract: The invention provides an evaporative media unit for use in cooling towers, the unit providing surfaces for heat exchange between liquid and air, and including at least one cross-fluted structure composed of multi-layered, corrugated cardboard sheets forming an array of inlet openings on a first side of the structure, and an array of outlet openings on a second side of the structure substantially opposite the first side.Type: GrantFiled: April 25, 2001Date of Patent: January 7, 2003Assignee: AGAM Energy Systems Ltd.Inventors: Gad Assaf, Moshe D Maroko
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Patent number: 6463750Abstract: The invention provides a system for the dehumidification of air in a space inside an enclosure, the system including at least one air/brine heat exchanger unit for heating cold fresh air introduced into the heat exchanger from the outside and for dehumidifying the air within the enclosure by vapor condensation; and a brine regenerator in brine communication with the air/brine heat exchanger.Type: GrantFiled: January 19, 2001Date of Patent: October 15, 2002Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf
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Patent number: 6266975Abstract: The invention provides a heat pump/engine system having a water/brine flash evaporator in fluid communication with a first air/brine heat exchanger, a brine condenser in fluid communication with a second air/brine heat exchanger, and a vapor compressor/turbine connected on a fluid conduit leading from the flash evaporator to the brine condenser. Heat/pump methods are also provided herein.Type: GrantFiled: June 19, 2000Date of Patent: July 31, 2001Assignee: Agam Energy Systems Ltd.Inventor: Gad Assaf