Intermittent Operating Of Generation And Sorption Cycle Patents (Class 62/106)
  • Patent number: 10508837
    Abstract: A method for changing a temperature of the interior volume of a thermally insulated space to a preset temperature and maintaining it at the preset temperature using two thermochemical systems which can be connected to an external energy source. The reactor of one of the systems is heated until fully regenerated, while the other system keeps the temperature at the preset temperature; when the reactor is fully regenerated, the system comprising the regenerated reactor is used to maintain the preset temperature and the reactor of the other system is heated to regenerate it as long as it is connected to the external energy source.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 17, 2019
    Assignee: COLDWAY TECHNOLOGIES SAS
    Inventors: Laurent Rigaud, Francis Kindbeiter, David Tadiotto
  • Patent number: 10309694
    Abstract: An adsorption heat pump includes: an evaporator/condenser including a section that evaporates a first heat exchange-medium and pipe through which a second heat exchange-medium flows; first adsorption devices, each including an adsorption-section in which the first heat exchange-medium that has been evaporated reacts and retains the first heat exchange-medium, and pipe through which the second heat exchange-medium flows; and second adsorption device in which first heat exchange-medium that has been released from the first adsorption devices reacts and retains the first heat exchange-medium.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 4, 2019
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuki Hirota, Takafumi Yamauchi, Ryuichi Iwata, Takashi Shimazu, Masaki Morita, Manabu Orihashi
  • Patent number: 10054339
    Abstract: This invention relates to a chemisorption based energy storage device, able to provide electricity, heating or cooling depending on the desired energy output. The device typically comprises sorbent materials which have an affinity for a refrigerant gas at different temperatures.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 21, 2018
    Assignee: UNIVERSITY OF NEWCASTLE UPON TYNE
    Inventors: Huashan Bao, Anthony Paul Roskilly
  • Patent number: 9796240
    Abstract: A cooling system is disclosed so that an operator cabin can be cooled even if the engine is off. An accumulator can be used to store high-pressure refrigerant until its release. When the compressor is off, the accumulator can release the high pressure refrigerant through the pressure reducer and to the evaporator where heat in the operator cabin can be removed by the refrigerant. An absorption bed with activated carbon can be used to adsorb the refrigerant from the evaporator in order to create a pressure gradient in A/C system. The refrigerant in the accumulator can also be used to subcool a refrigerant in the condenser through a heat exchanger. This allows the operator cabin to be cooled faster up on engine start up. The adsorption bed can also be used to create a pressure gradient in the cooling system.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 24, 2017
    Assignee: Caterpillar Inc.
    Inventors: Jason Brauer, Kory K. Leesman
  • Patent number: 9797629
    Abstract: The invention relates to a method for carrying out a heat transfer between alternately working adsorbers (Ad1, Ad2) in an adsorption refrigeration installation comprising an external cooling circuit (Kw) and an external heating circuit (Hw). The method is characterized by a closed heat transfer circuit, connected between the first and the second adsorber, comprising a heat transfer medium (Wm) circulating therein, a heat transfer with the external cooling circuit (Kw) being carried out in the heat transfer circuit via a first heat contact and a heat transfer with the external heating circuit (Hw) being carried out via a second heat contact.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: October 24, 2017
    Assignee: Fahrenheit AG
    Inventor: Walter Mittelbach
  • Patent number: 9752904
    Abstract: The present disclosure relates to an arrangement for providing information about a flow rate of a fluid, comprising: a fluid inlet opening, at least one flow channel, and at least one porous zone located above the at least one flow channel, wherein the surface size and position of the at least one porous zone relative to the fluid inlet opening defines the evaporation rate of a fluid, arranged such that when a fluid is injected through the fluid inlet opening the fluid flows via hydraulic pressure through the at least one flow channel and then through the respective at least one porous zone.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: September 5, 2017
    Assignee: Stichting IMEC Nederland
    Inventors: Marcel Arie Günther Zevenbergen, Rajesh Mandamparambil, Chuan Nie, Arnoldus Joannes Hubertus Frijns, Jacob Marinus Jan Den Toonder
  • Patent number: 9677780
    Abstract: A controller controls the operations of a humidity control apparatus and an air conditioner. The controller includes a power consumption detector, a target value setting processor, and an operation control unit. The power consumption detector detects the power consumption of the humidity control apparatus and the air conditioner. The target value setting processor performs optimal target value setting processing by performing first or second processing. The first processing lowers a target operating frequency of a humidity controlling compressor and a target evaporation temperature in a utilization-side heat exchanger. The second processing raises the target operating frequency and the target evaporation temperature. The optimal target value setting processing sets the target operating frequency and the target evaporation temperature so as to minimize the power consumption.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: June 13, 2017
    Assignee: Daikin Industries, Ltd.
    Inventor: Yoshihiro Nakagawa
  • Patent number: 9453664
    Abstract: High efficiency heat pump combining absorption and solution concentration change. The method gives a few times higher efficiency for heat transfer applications like heating—air conditioning. It is a heat and mechanical compression method using liquid electrolyte solutions, combining steam absorption, solution concentration change and mechanical compression. There is no heat consumption. Steam condensation is performed by a high concentration solution and vaporization from a low concentration solution reducing in this way the required mechanical compression of the known refrigeration cycle. The method may be used for work production too, exploiting moderate temperature heat sources.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: September 27, 2016
    Inventor: Vasilios Ethimios Styliaras
  • Patent number: 9328950
    Abstract: Device and method for making ice cubes, comprising a supplying device for supplying a liquid substance to at least one elongated mold (1) and a refrigerating device for freezing said liquid substance, which at least one mold defines a space for an ice column which is at least substantially closed at least while said liquid substance is being refrigerated. The at least one mold comprises two mold halves (Ia, Ib) which are movable relative to each other, so that the mold halves can be moved apart once the ice column has been formed. Method for making ice cubes, comprising the steps of a) supplying a liquid substance to a mold, b) freezing the liquid substance in the mold, and c) removing the ice cubes thus formed from the mold, wherein the liquid substance is supplied in step a) to a mold comprising an at least substantially closed space. Metering device for ice cubes.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: May 3, 2016
    Assignee: W. SCHOONEN BEHEER B.V.
    Inventor: Wilhelmus Franciskus Schoonen
  • Patent number: 9207003
    Abstract: The intermittent absorption system with a liquid-liquid heat exchanger includes two generator/absorber units that operate out-of-phase, a solar collector unit, a dephlegmator, a condenser unit, an evaporator, and valves to control the flow of aqua-ammonia coolant through the system. The system operates on a two-day cycle. On the first day, during the daytime, the first generator/absorber unit generates liquid ammonia, while on the second day of the cycle, the roles are reversed, the second generator/absorber unit generating liquid ammonia. At the start of each day, one generator/absorber unit is partially pressurized and the other partially depressurized by liquid-liquid heat exchange between their heat exchangers, followed by disconnecting the heat exchangers from each other and connecting the generator to the solar collector to complete pressurization.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: December 8, 2015
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Syed A. M. Said, Muhammad Umar Siddiqui
  • Patent number: 9146040
    Abstract: A humidity control system including a heat pump with desiccant coated passive heat transfer devices on both sides of the heat pump and an air circulation system for alternately directing a process air stream to be humidity controlled and a separate regenerative air stream past each side. As desiccant on one side becomes laden with moisture, the air streams are redirected to the opposite sides of the heat pump so the regenerative stream can remove moisture from the first side. Simultaneously, the air stream to be humidity controlled uses the previously regenerated desiccant on the second side.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 29, 2015
    Assignee: CARRIER CORPORATION
    Inventor: Timothy D. DeValve
  • Patent number: 9132412
    Abstract: An adsorption structure is described that includes at least one adsorbent member formed of an adsorbent material and at least one porous member provided in contact with a portion of the adsorbent member to allow gas to enter and exit the portion of the adsorbent member. Such adsorption structure is usefully employed in adsorbent-based refrigeration systems. A method also is described for producing an adsorbent material, in which a first polymeric material provided having a first density and a second polymeric material is provided having a second density, in which the second polymeric material is in contact with the first polymeric material to form a structure. The structure is pyrolyzed to form a porous adsorbent material including a first region corresponding to the first polymeric material and a second region corresponding to the second polymeric material, in which at least one of the pore sizes and the pore distribution differs between the first region and the second region.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: September 15, 2015
    Assignee: ENTEGRIS, INC.
    Inventors: J. Donald Carruthers, Karl Boggs, Luping Wang, Shaun M. Wilson, Jose I. Arno, Paul J. Marganski, Steven M. Bilodeau, Peng Zou, Brian Bobita, Joseph D. Sweeney, Douglas Edwards
  • Patent number: 9134037
    Abstract: The equipment of the invention includes a boiler, a hot water storage tank, a duct for supplying domestic cold water, and a duct for tapping domestic hot water, wherein said equipment is characterized in that the duct for supplying cold water comprises a T-shaped connector connected by a duct provided with a storage vessel to a re-circulation duct connecting the tank to the inlet duct, provided with a pump, of the boiler, and in that the outlet duct of the boiler is provided with a three-way valve connected by a by pass duct to said T-shaped connector, wherein said valve can selectively assume a position in which it ensures communication between the boiler outlet and the central portion of the tank, or a position in which it ensures communication between the boiler outlet and said bypass duct.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 15, 2015
    Assignee: Giannoni France
    Inventor: Joseph Le Mer
  • Patent number: 9080796
    Abstract: A vehicle climate control system operable in a winter mode and a summer mode includes an engine-exhaust-driven hot heat transfer fluid (HTF) circuit coupled with a heater core during the winter mode to provide passenger cabin heating, and thermal energy stored in a standalone hot phase change material (PCM) battery in the hot HTF circuit may provide surge heating at or prior to engine start. The hot HTF circuit and a cold HTF circuit including an HTF cooler drive two adsorbers in the summer mode, thereby providing passenger cabin cooling in conjunction with a refrigerant circuit which includes a condenser, evaporator, expansion valve, and standalone cold PCM battery. Thermal energy stored in the standalone cold PCM battery may provide surge cooling at or prior to engine start.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: July 14, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Furqan Zafar Shaikh, Michael Levin, Danrich Henry Demitroff, Don Masch, Jim Patrick O'Neill
  • Patent number: 8997505
    Abstract: A vehicle climate control system includes a thermal-adsorption heat pump driven by engine exhaust heat, the heat pump including two adsorbers asynchronously switching between adsorbing and desorbing modes, each adsorber coupled with a corresponding antifreeze tank via a plurality of refrigerant-containing wick chambers. Cold heat transfer fluid (HTF) flows through the adsorber during the adsorbing mode which causes evaporation of refrigerant from the wick chambers, thereby cooling antifreeze, whereas hot HTF flows through the adsorber during the desorbing mode which causes condensation of refrigerant at the wick chambers, thereby heating antifreeze. In this way, the thermal-adsorption heat pump may condition cabin air independent of engine coolant and without exerting a load on the engine.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: April 7, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Yongfang Zhong, Michael Levin, Furqan Zafar Shaikh, Danrich Henry Demitroff, Donald Masch
  • Publication number: 20140047853
    Abstract: A vehicle climate control system includes a thermal-adsorption heat pump driven by engine exhaust heat, the heat pump including two adsorbers asynchronously switching between adsorbing and desorbing modes, each adsorber coupled with a corresponding antifreeze tank via a plurality of refrigerant-containing wick chambers. Cold heat transfer fluid (HTF) flows through the adsorber during the adsorbing mode which causes evaporation of refrigerant from the wick chambers, thereby cooling antifreeze, whereas hot HTF flows through the adsorber during the desorbing mode which causes condensation of refrigerant at the wick chambers, thereby heating antifreeze. In this way, the thermal-adsorption heat pump may condition cabin air independent of engine coolant and without exerting a load on the engine.
    Type: Application
    Filed: January 24, 2013
    Publication date: February 20, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Yongfang Zhong, Michael Levin, Furqan Zafar Shaikh, Danrich Henry Demitroff, Donald Masch
  • Publication number: 20140020413
    Abstract: The present invention relates to a heat exchanger module with thermal management containing a titano-alumino-phosphate as adsorber, which displays a high hydrothermal stability and already desorbs the adsorbed water again under the action of low heat. By targeted action of temperature, the adsorbed water is condensed out, whereby heat energy is released. By means of the action of low heat, the condensed water can be adsorbed again as cold vapour on the adsorber, whereby heat energy is released. The heat exchanger module can be used to heat objects, appliances or rooms on the basis of the adsorption energy being released during the adsorption, as this is discharged and used further. In addition to heating, the cooling of rooms, objects and appliances is also possible, as the area surrounding the heat exchanger module is cooled due to a fall in the temperature in the heat exchanger module.
    Type: Application
    Filed: December 21, 2011
    Publication date: January 23, 2014
    Applicant: Clariant Produkte(Deutschland)GmbH
    Inventors: Silke Sauerbeck, Arno Tissler, Rolf Kurzhals
  • Patent number: 8539782
    Abstract: The invention relates to a method for controlling the power of a sorption refrigeration system, comprising an adsorber unit, a condenser (C), and an evaporator (E) through which a cooling carrier fluid (KT) flows, with alternating application of the adsorber unit by a valve unit (HV_IN, HV_OUT) operated via a controller, having a circuit process of at least one sorption phase and at least one heat recovery phase, wherein a measurement of a current cooling carrier outlet temperature (Takt) is carried out in the return of the evaporator, a calculation of an averaged cooling carrier outlet temperature (Tgem) is carried out during the first and second sorption phases with a comparison to the current cooling carrier outlet temperature (Takt), and a control signal is trigger upon completion of the sorption phase as a function of the difference between the averaged cooling carrier outlet temperature (Tgem) and the current cooling carrier outlet temperature (Tgem). The invention provides a corresponding device.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: September 24, 2013
    Assignee: SorTech AG
    Inventors: Thomas Büttner, Walter Mittelbach
  • Patent number: 8438865
    Abstract: A cooling system (10) for cooling an aircraft device (12) comprises an evaporator (14, 16, 18) for receiving a fluid (F) which is to be evaporated, a first adsorber (24) which contains a medium (28) for the adsorption of the fluid (F) which is evaporated in the evaporator (14, 16, 18), as well as a second adsorber (26) which contains a medium for the adsorption of the fluid (F) which is evaporated in the evaporator (14, 16, 18). A control system (22) is adapted to establish or to interrupt a fluid connection between the evaporator (14, 16, 18) and the first and/or the second adsorber(s) (24, 26).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: May 14, 2013
    Assignee: Airbus Operations GmbH
    Inventors: Andreas Frey, Ahmet Kayihan Kiryaman, Carsten Colberg, Peter Schwebke, Markus Kerber, Michael Dreyhaupt
  • Patent number: 8256235
    Abstract: A heat transfer apparatus and method comprises first and second heat transfer units. A heat exchanger has a first portion thereof arranged between the first and second units, and a second portion that is thermally connected to the first portion and not arranged between the first and second units. Each heat transfer unit comprises one or more modules, and each module comprises a chamber having a first part which contains a first gas adsorbent material and a second part which contains a second gas adsorbent material. These parts are connected so as to allow gaseous communication therebetween whilst being relatively thermally isolated from each other.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: September 4, 2012
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Sunil Dutt Sharma
  • Publication number: 20090282846
    Abstract: The invention relates to an arrangement that has an adsorption heat pump with at least one adsorber and at least one heat accumulator with the following features: heat at different temperature levels can be stored in the heat accumulator (2) simultaneously; adsorption heat released during the adsorption, which heat is not to be used for a later desorption, can be dissipated to a heat sink; adsorption heat that is to be used for the desorption can be stored in the heat accumulator at a temperature dependent on the adsorption temperature; desorption heat can be extracted at least in part from the heat accumulator at a desired temperature; a heat source, in particular a thermal solar collector is available, with which heat necessary for the desorption can be provided at a temperature level that is higher than the temperature levels achievable through previous desorption in the heat accumulator (2), and/or heat can be provided which is not available in the required quantity in the heat accumulator.
    Type: Application
    Filed: September 14, 2007
    Publication date: November 19, 2009
    Inventors: Gunther Munz, Ferdinand Schmidt, Tomas Nunez, Lena Schnabel
  • Patent number: 7456131
    Abstract: A monolith comprises a zeolite, a thermally conductive carbon, and a binder. The zeolite is included in the form of beads, pellets, powders and mixtures thereof. The thermally conductive carbon can be carbon nano-fibers, diamond or graphite which provide thermal conductivities in excess of about 100 W/m·K to more than 1,000 W/m·K. A method of preparing a zeolite monolith includes the steps of mixing a zeolite dispersion in an aqueous colloidal silica binder with a dispersion of carbon nano-fibers in water followed by dehydration and curing of the binder is given.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: November 25, 2008
    Assignee: UT-Battelle, LLC
    Inventors: James Klett, Lynn Klett, Jonathan Kaufman
  • Publication number: 20080202132
    Abstract: The invention relates to refrigeration using a thermochemical system based on the coupling of two reversible physico-chemical phenomena between a gas and a solid or liquid sorbent, one at low temperature (the LT phenomenon) and the other at a higher temperature (the HT phenomenon). The LT phenomenon is a liquid/gas phase change of the fluid G or an absorption of the fluid G by a liquid sorbent. The HT phenomenon is a reversible sorption of the fluid G by a liquid or solid sorbent. The endothermic phase of the LT phenomenon takes place in a reactor thermally isolated from the ambient environment. The exothermic phase of the LT phenomenon takes place in a condenser in communication with the reactor in which the HT phenomenon takes place, the condensed fluid G then being transferred to the reactor in which the endothermic phase of the LT phenomenon takes place.
    Type: Application
    Filed: March 12, 2004
    Publication date: August 28, 2008
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Driss Stitou, Olivier Bertrand, Bernard Spinner, Bruno Spinner, Caroline Spinner Brossard, Anne Christel Spinner Kohler, Nathalie Mazet, Martin Spinner
  • Patent number: 7174741
    Abstract: Air conditioner including a case having air inlet and outlet passages therein perpendicular to each other, and a plurality of air inlet and outlets at ends of the air inlet and outlet passages, a regenerative heat exchanger at a cross point of the air inlet and outlet passages for making indirect heat exchange of the external air and room air flowing through the air inlet and outlet passages, a compressor, a flow path control valve for shifting, and guiding a flow path of refrigerant from the compressor proper to respective operation modes, first and second heat exchangers, an expansion device, a first fan in the air inlet passage for blowing external air into a room through the first heat exchanger, and a second fan in the air outlet passage for blowing the room air to an exterior through the second heat exchanger, thereby ventilating as well as heating or cooling the room at the same time.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: February 13, 2007
    Assignee: LG Electronics Inc.
    Inventors: Won Hee Lee, Yoon Jei Hwang, Chan Ho Song
  • Publication number: 20040211215
    Abstract: A sorption cooling apparatus for cooling a thermally insulated cooling container 1, with a sorber container 5 containing a sorber material 7 which, during a sorption phase, sorbs a working fluid which evaporates in an evaporator 2 that is disposed in the interior chamber of cooling container 1 and with a valve 4 between sorber container 5 and evaporator 2, which valve can be shut off and which can stop the flow of the working fluid steam, with an evaporator blower 12 being disposed along evaporator 2, which evaporator blower passes an air stream over the evaporator, and with a sorber blower 10 being disposed along sorber container 5, which sorber blower can circulate air around the container containing the sorbent material.
    Type: Application
    Filed: January 26, 2004
    Publication date: October 28, 2004
    Applicant: ZEO-TECH Zeolith-Technologie GmbH
    Inventors: Peter Maier-Laxhuber, Andreas Becky, Reiner Worz, Gert Richter, Norbert Weinzierl
  • Patent number: 6782712
    Abstract: An adsorption refrigeration system and method are provided, the system comprising an adsorption pump which, in use, is arranged in communication with a chamber containing liquid and gaseous coolant. The associated method comprises expanding the gaseous coolant into an auxiliary volume member so as to cause the removal of part of the gaseous coolant from the chamber. This causes a reduction in the temperature and pressure of the gaseous coolant in the chamber. The adsorption pump is then operated so as to further cool the chamber by causing the evaporation of the coolant liquid within the chamber.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: August 31, 2004
    Assignee: Oxford Instruments Superconductivity Limited
    Inventors: Vladmir Mikheev, Paul Geoffrey Noonan, Alvin Jon Adams
  • Publication number: 20040089017
    Abstract: An adsorption refrigeration system and method are provided, the system comprising an adsorption pump which, in use, is arranged in communication with a chamber containing liquid and gaseous coolant. The associated method comprises expanding the gaseous coolant into an auxiliary volume member so as to cause the removal of part of the gaseous coolant from the chamber. This causes a reduction in the temperature and pressure of the gaseous coolant in the chamber. The adsorption pump is then operated so as to further cool the chamber by causing the evaporation of the coolant liquid within the chamber.
    Type: Application
    Filed: July 30, 2003
    Publication date: May 13, 2004
    Applicant: OXFORD INSTRUMENTS SUPERCONDUCTIVITY LIMITED
    Inventors: Vladimir Mikheev, Paul Geoffrey Noonan, Alvin Jon Adams
  • Patent number: 6722154
    Abstract: The present invention utilizes the hydrogen storage capabilities of hydrogen storage material to dehumidify and cool air flowing into an enclosed area, such as a residential home. The invention provides an apparatus and method that incorporates a hydrogen storage module having a low pressure, the heat retriever module, and a hydrogen storage module having a high pressure, the cooling module, wherein the modules are connected by a pipe or tube that guides the flow of hydrogen gas back and forth between the modules. The heat retriever module is heated to increase the temperature of the heat retriever module and hydrogen gas is desorbed from the hydrogen storage material contained therein, then a valve in the tube or pipe is opened and the hydrogen gas flows to the cooling module. The valve is closed, after the hydrogen gas is absorbed by the hydrogen storage material of the cooling module. The absorption of hydrogen gas causes an increase in temperature of the cooling module.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: April 20, 2004
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Zhaosheng Tan, Krishna Sapru
  • Patent number: 6706097
    Abstract: A molecular sieve apparatus and magnetic/adsorbent material composition facilitate molecular adsorption and separation using a magnetic field to hold, move, cool, and/or heat an adsorbent 1 that is bonded to magnetic materials 3 that are moveable by a magnetic field. An adsorbent 1 is bonded to a soft magnetic material 3 with a binder 2 into a powder composite material adsorbent attractable by a magnetic field (magnetoadsorbent 4). Magnetoadsorbent 4 functions to adsorb and desorb working substances, causing a molecular separation; thereby increasing the efficiency of the adsorption cycle by moving the adsorbent 1 to a location that optimally processes the adsorbent 1. Magnetic field manipulation of adsorbents 1 enables delivery of molecules to locations within systems. Magnetoadsorbents 4 of the present invention further increase the efficiency of the adsorption cycle by combining materials with functions including: catalyst, buoyancy, suspension, magnetic heating, and sinking in liquid.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 16, 2004
    Assignee: Hexablock, Inc.
    Inventor: David A. Zornes
  • Patent number: 6701724
    Abstract: Novel sorption cooling devices capable of providing cooling over an extended period of time are disclosed. The sorption cooling devices are particularly useful for temperature-controlled shipping containers that are required to maintain a temperature below ambient for a time sufficient to complete delivery of the container and its contents. The shipping containers can be utilized to cost-effectively transport temperature-sensitive products.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: March 9, 2004
    Assignee: Nanopore, Inc.
    Inventors: Douglas M. Smith, Veronica Natividad, Tamara L. O'Brien, Kevin H. Roderick, Loix X. Warren, Richard G. Perkes, Vanessa Sinclair
  • Patent number: 6591630
    Abstract: A sorption cooling device adapted to cool a gas or liquid flowing through a conduit. The cooling device has a high cooling density and a user can independently control the cooling rate. The cooling device can be incorporated in a number of apparatus and in one embodiment is incorporated in a personnel cooling apparatus, such as a closed-loop breathing apparatus or a body cooler.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: July 15, 2003
    Assignee: Nanopore, Inc.
    Inventors: Douglas M. Smith, Kevin H. Roderick, Ezra L. Merrill, Charles J. Call
  • Patent number: 6532762
    Abstract: Disclosed is a liquid refrigerant reservoir and a cooling device comprised of at least one sorbent section, at least one liquid passageway section, at least one wicking material, at least one thermal spacer, a vapor-permeable membrane, a heat-removing material, at least one liquid barrier, a liquid refrigerant reservoir, and a valve. The sorbent section contains a sorbent for a liquid refrigerant. The liquid passageway section is adjacent the sorbent section and defines a liquid passageway through a portion of the evacuated sorbent assembly and cooling device to the sorbent section. The wicking material is disposed in the liquid passageway section. The thermal spacer is in contact with the sorbent section. The vapor-permeable membrane is interposed between the liquid passageway section and the thermal spacer. The heat-removing material is in thermal contact with the sorbent. The liquid barrier is interposed between the heat-removing material and the sorbent.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: March 18, 2003
    Assignee: Thermal Products Development, Inc.
    Inventors: Douglas Smith, Kevin Roderick, Robert Braun
  • Publication number: 20030014982
    Abstract: Novel sorption cooling devices capable of providing cooling over an extended period of time are disclosed. The sorption cooling devices are particularly useful for temperature-controlled shipping containers that are required to maintain a temperature below ambient for a time sufficient to complete delivery of the container and its contents. The shipping containers can be utilized to cost-effectively transport temperature-sensitive products.
    Type: Application
    Filed: June 6, 2002
    Publication date: January 23, 2003
    Inventors: Douglas M. Smith, Veronica Natividad, Tamara L. O'Brien, Kevin H. Roderick, Loix X. Warren, Richard G. Perkes, Vanessa Sinclair
  • Publication number: 20020166335
    Abstract: Disclosed is a liquid refrigerant reservoir and a cooling device comprised of at least one sorbent section, at least one liquid passageway section, at least one wicking material, at least one thermal spacer, a vapor-permeable membrane, a heat-removing material, at least one liquid barrier, a liquid refrigerant reservoir, and a valve. The sorbent section contains a sorbent for a liquid refrigerant. The liquid passageway section is adjacent the sorbent section and defines a liquid passageway through a portion of the evacuated sorbent assembly and cooling device to the sorbent section. The wicking material is disposed in the liquid passageway section. The thermal spacer is in contact with the sorbent section. The vapor-permeable membrane is interposed between the liquid passageway section and the thermal spacer. The heat-removing material is in thermal contact with the sorbent. The liquid barrier is interposed between the heat-removing material and the sorbent.
    Type: Application
    Filed: June 26, 2002
    Publication date: November 14, 2002
    Inventors: Douglas Smith, Kevin Roderick, Robert Braun
  • Patent number: 6477856
    Abstract: A method of carrying out recuperation between alternately absorbing and desorbing reactors in which in a first reaction cycle in a desorbing reactor a gaseous reactant is desorbed from a solid sorbent and concurrently in an absorbing-reactor the gaseous reactant is absorbed on a solid sorbent, and in a second reaction cycle, absorption and desorption are reversed in said reactors, respectively, comprising communicating the reaction chambers of the desorbing reactor with the reaction chamber of the absorbing reactor and directing a portion of gaseous reactant desorbed from the sorbent composition in the desorbing reactor near the completion of a desorbing cycle to the absorbing reactor for less than about 10 minutes prior to reversing the cycles.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: November 12, 2002
    Assignee: Rocky Research
    Inventors: Kaveh Khalili, Uwe Rockenfeller
  • Patent number: 6434955
    Abstract: A novel modular and miniature chiller is proposed that symbiotically combines absorption and thermoelectric cooling devices. The seemingly low efficiency of each cycle individually is overcome by an amalgamation with the other. This electro-adsorption chiller incorporates solely existing technologies. It can attain large cooling densities at high efficiency, yet is free of moving parts and comprises harmless materials. The governing physical processes are primarily surface rather than bulk effects, or involve electron rather than fluid flow. This insensitivity to scale creates promising applications in areas ranging from cooling personal computers and other micro-electronic appliances, to automotive and room air-conditioning.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 20, 2002
    Assignee: The National University of Singapore
    Inventors: Kim Choon Ng, Jeffrey M. Gordon, Hui Tong Chua, Anutosh Chakraborty
  • Patent number: 6314744
    Abstract: A hybrid air-conditioner comprises a vapor adsorption cycle air-conditioner, a vapor compression refrigerating cycle air-conditioner, an external heat source circuit and the like. In the case where the external heat source temperature is in a high temperature range, the cooling operation is performed using only the vapor adsorption cycle air-conditioner. In the case where the external heat source temperature is in a low temperature range, the cooling operation is performed using only the vapor compression refrigerating cycle air-conditioner. In the case where the external heat source temperature is in an intermediate temperature range, the cooling operation is performed using both the vapor adsorption cycle air-conditioner and the vapor compression refrigerating cycle air-conditioner. As a result, the temperature restrictions on the vapor adsorption cycle air-conditioner can be removed and the range of operation allowance can be widened.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: November 13, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masahiro Ogawa
  • Patent number: 6305186
    Abstract: The invention concerns a method for controlling a thermochemical reaction or a solid-gas adsorption being carried out in a reactor (10) containing an active agent capable of reversibly reacting with a gas, the reactor (10) being connected to an evaporator/condenser assembly (14) for the gas by a connection (12) without control valve, the reactor (10) and the evaporator/condenser assembly (14) each provided with means for selectively exchanging calories with their surroundings.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: October 23, 2001
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Xavier Py, Francis Kindbeiter
  • Patent number: 6282917
    Abstract: A heat exchanging method and apparatus for improving heat transfer in a cooling system. Specifically, the heat exchanging method and apparatus is an absorption chiller that comprises a heat transfer device having one heat pipe partially disposed within a second heat pipe, where the juncture of the coupled heat pipes promotes absorption of a vapor into a working solution. The juncture of the coupled heat pipes is disposed within a condenser section such that two processes, condensation and absorption of the absorption chiller are efficiently implemented within a single section or chamber.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: September 4, 2001
    Inventor: Stephen Mongan
  • Patent number: 5953927
    Abstract: A process is disclosed for producing a chilled water stream by the integration of a sorption cooling section with a fluid catalytic cracking (FCC) process. The hot and cold working fluids for operation of the sorption cooling section are withdrawn directly from liquid streams in the FCC process in a novel flow scheme which employs a side draw stream to provide the hot working fluid and the liquid condensed from the overhead of the FCC main fractionator as the cold working fluid. The hot exit stream and the warm exit stream are cross-exchanged to smooth out the temperature variations which reduce the size and operating cost of producing the chilled stream. Potential damage to equipment and variation operations can be avoided by selecting the location of the side draw stream to avoid the accumulation of non-condensables in the heat exchange equipment.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 21, 1999
    Assignee: UOP LLC
    Inventors: Constante P. Tagamolila, Stephen R. Dunne
  • Patent number: 5901780
    Abstract: An auxiliary active heating and air conditioning system which uses a fuel fired heater as an energy source for both heating and air conditioning a passenger area of a motor vehicle. The system also utilizes a single heat exchanger to supply both heated and cooled air to the passenger area. The system includes a fuel fired heater for heating heat transfer fluid and a two bed sorber cooling system. The system being operable in a heating mode and a cooling mode. In the heating mode, the heated heat transfer fluid from the fuel fired heater is directed to heat exchanger in order to heat the passenger compartment. In the cooling mode, the heat transfer fluid from the heater is alternately directed to the two sorber beds such that one sorber bed is heated while the other bed cools. The alternate heating and cooling of the sorber beds in the cooling mode causes the sorber cooling system to operate and thereby deliver cooled heat transfer fluid to the heat exchanger in the passenger area.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: May 11, 1999
    Assignee: Rocky Research
    Inventors: Terry A. Zeigler, Larry L. Peiffer, William G. Guo, Uwe Rockenfeller, Paul Sarkasian, Lance D. Kirol
  • Patent number: 5857345
    Abstract: Method of managing a solid/gas adsorption or thermochemical reaction, the site of which is a device comprising a reactor, which contains a solid capable of reacting with a gas, an evaporator/condenser assembly for the gas and means intended to reheat the solid, the method comprising the steps which consist in:bringing the evaporator/condenser assembly, when the latter is filled with liquid, into communication with the reactor so as to cool the evaporator,switching on the means intended to reheat the solid, so as to deliver the gas to the evaporator/condenser assembly.According to the invention, the step of switching on the means intended to reheat the solid starts before the previous step has finished.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: January 12, 1999
    Assignee: Elf Aquitaine
    Inventors: Jacques Prosdocimi, Bernard Spinner, Vincent Goetz
  • Patent number: 5845507
    Abstract: A thermal compressor (10) comprises two adsorbent beds (11, 12) each with an associated thermal management system (14). The thermal management systems (14) are identical and consist of a circulating supply of a control fluid which passes through the adsorbent bed, a pump (15), a heat exchanger (16) and an inert bed (17, 18). Heat removed from the adsorbent beds (11, 12) by the control fluid is supplied to the inert beds (17, 18) and is store to be subsequently regenerated to heat the adsorbent beds (11, 12) in a later half of the operating cycle of the thermal compressor (10). The thermal compressor (10) is energy efficient by virtue of the heat recycling which is performed.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: December 8, 1998
    Assignee: University of Warwick
    Inventors: Robert Edward Critoph, Roger Thorpe
  • Patent number: 5813248
    Abstract: A heat transfer apparatus that uses an adsorbent material to generate a cooling effect. The heat transfer apparatus includes a first vessel containing adsorbent material and a second vessel interconnected to the first. A working substance is contained within the two interconnected vessels. The adsorbent material and working substance are sized such that the working substance is completely adsorbed in both liquid and solid states by the adsorbent material from the second vessel into the first, cooling the second vessel and heating the first. Complete adsorption includes adsorption of the working substance by vaporization when the working substance is in a liquid phase and adsorption by sublimation when the working substance is in a solid phase. The second vessel contains a compressible foam which accommodates the expansion of the working substance when it changes phase from a liquid to a solid and prevents the second vessel from breaking.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: September 29, 1998
    Inventors: David A. Zornes, John J. Bauer
  • Patent number: 5768904
    Abstract: A process and a control system are disclosed for continuous cooling of a condensable process stream by the integration of a sorption cooling section for producing a chilled stream therewith. The condensable process stream is cooled with a cooled hot exit stream from the sorption cooling section to provide a hot working fluid stream to desorb an adsorption zone in the sorption cooling zone. A cold working fluid stream comprising a condensed portion of the condensable stream is passed to the sorption cooling section to facilitate adsorption in another adsorption zone in the sorption cooling section and a warm exit stream is withdrawn. The hot exit stream and the warm exit stream are cross-exchanged to smooth out the temperature variations which reduce the size and operating cost of producing the chilled stream.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: June 23, 1998
    Assignee: UOP LLC
    Inventors: Constante P. Tagamolila, Stephen R. Dunne
  • Patent number: 5729988
    Abstract: A heat pump using zeolite as an adsorbent wherein thermal energy from adsorbent zeolite in one hermetically sealed space is used to heat desorbing zeolite located in another hermetically sealed space, such heat being conveyed by heat exchanger conduits containing a heat transfer fluid which, before heating the desorbed zeolite, has its temperature increased to within a range of about 200.degree. F. (93.degree. C.) to 400.degree. F. (205.degree. C.) by a gas flame or other heat source, the adsorption and desorption phases being changed between the zeolites in each cycle by reversing the fluid flow in the conduits. Cooling and heating for a building or other purposes are provided through the condenser and evaporator respectively for the working gas (water) which is desorbed and adsorbed into the zeolites.
    Type: Grant
    Filed: January 4, 1988
    Date of Patent: March 24, 1998
    Inventor: Dimiter I. Tchernev
  • Patent number: 5661982
    Abstract: An electronic refrigerant compressing apparatus comprises two or more compressing portions coupled in parallel to one another, which repeats the heating and cooling of the refrigerant circulating the refrigerant cycle at an interval of a predetermined time. Each of the compressing portions is provided with the cylindrical body having the refrigerant charged therein, the refrigerant pipe coiled around its body, the refrigerant heating load mounted in close to the refrigerant pipe for increasing the pressure of the refrigerant, the solenoid valve mounted at the inlet and outlet if the refrigerant, which is opened/closed according to the control of the microcomputer and means for detecting the temperature of the refrigerant, in which one side of the body and the refrigerant pipe is connected through the solenoid valve and the refrigerant outlet to the condenser as part of the refrigerant cycle, and the other side is connected through the check valve to the evaporator.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: September 2, 1997
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Young-Dawn Bae, Dong-Yul Nam
  • Patent number: 5619866
    Abstract: An (n)th adsorber and (n+1)th adsorber among a plurality of adsorbers in an adsorption process are connected thermally in series, and adsorbent of the (n)th adsorber which is a previous stage is cooled by adsorption of refrigerant by adsorbent of the (n+1)th adsorber which is a subsequent stage. That is to say, adsorbent of a first-stage adsorber on the left-hand side which adsorbs vapor of refrigerant such as water which exits from an evaporator is strongly cooled by adsorption of vapor from refrigerant such as water which flows through a cooling pipe by adsorbent of a second-stage adsorber on the right-hand side, large adsorption capacity is imparted by a reduction in temperature, and as a result, the evaporator demonstrates large refrigeration capacity. Consequently, a compact adsorptive type refrigeration apparatus which demonstrates large refrigeration capacity while having a compact adsorber and using a comparatively small quantity of adsorbent is provided.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: April 15, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Hideaki Sato, Shin Honda, Seiji Inoue, Hiroshi Tanaka, Tadayoshi Terao
  • Patent number: 5529709
    Abstract: An improved absorption cycle apparatus and system using aqueous solutions of metal salts selected from the group consisting of alkali metal hydroxides, nitrites, and alkaline earth and transition metal hydroxides, halides, thiocyanates, and mixtures thereof between about 14% and about 30%, by weight, of said metal salt, of an organic compound selected from the group consisting of alcohols, glycerol, glycols, polyglycols, alkaline glycol ethers, aliphatic amines and alkanol amines.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: June 25, 1996
    Assignee: Gas Research Institute
    Inventor: Uwe Rockenfeller
  • Patent number: 5404728
    Abstract: A sorption method and sorption medium container arrangement utilizes two sorption medium containers and at least one heat exchanger for use with each sorption medium container for absorbing or emitting heat. Each sorption medium container is filled with a sorption medium that can adsorb an operating medium by releasing heat and can desorb or expel the operating medium by absorbing heat. The sorption medium container arrangement also includes steam sources or steam troughs which are connected to the sorption medium containers. The steam source or trough is designed to provide or receive operating medium steam. A heat carrier medium flows through the heat exchanger of the first sorption medium container during a first partial operation phase wherein the sorption medium is cooled and the first sorption medium container is heated.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: April 11, 1995
    Assignee: Zeo-Tech (Zeolith Technology) GmbH
    Inventor: Peter Maier-Laxhuber