With Removing Of Moisture Patents (Class 62/93)
  • Publication number: 20130180271
    Abstract: An apparatus is provided, which includes a dust detector, a voltage source, and a controller. The dust detector includes two opposing surfaces and a conductive dust sensor. The two opposing surfaces are disposed in spaced, opposing relation to allow for the passage of airflow between the surfaces, and the conductive dust sensor is disposed at a surface of the two opposing surfaces. The voltage source is configured and controlled to establish an electrostatic field at least partially between the two opposing surfaces to facilitate directing conductive particles in the airflow passing between the two opposing surfaces towards the dust sensor. The controller monitors for a leakage current within the conductive dust sensor and determines whether the leakage current exceeds a predetermined trigger level indicative of the presence of conductive dust, and if so, automatically indicates a conductive dust warning.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Joseph KUCZYNSKI, Melissa K. MILLER, Prabjit SINGH, Heidi D. WILLIAMS, Jing ZHANG
  • Patent number: 8453474
    Abstract: A vehicle air handling system includes an air handler, a desiccant assembly and a regeneration mechanism. The air handler has an air inlet configured to receive airflow into the air handler and an air outlet configured to direct the airflow from the air handler to a passenger compartment of a vehicle. The desiccant assembly is installed in a fixed non-movable orientation within the air handler. The desiccant assembly is configured to absorb moisture from the airflow and is disposed between the air inlet and the air outlet. The desiccant assembly includes a first flow path and a second flow path separated from one another such that the airflow passes through the first flow path. The regeneration mechanism is in fluid communication with the second air flow path of the desiccant assembly and is configured to remove moisture from the airflow passing through the desiccant assembly.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: June 4, 2013
    Assignee: Nissan North America, Inc.
    Inventor: Ronald S. Eisenhour
  • Patent number: 8453470
    Abstract: A method of controlling the conditions of air in an interior of an enclosure is disclosed. The method comprises collecting air from a lower part of the interior, dehumidifying the collected air, and releasing the dehumidified air in an upper part of the interior, thereby controlling the conditions of the air in the interior of the enclosure.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: June 4, 2013
    Assignee: The State of Israel, Ministry of Agriculture & Rural Development, Agricultural Research Organization, (A.R.O.), Volcani Center
    Inventors: Avraham Arbel, Mordechai Barak, Alexander Shklyar
  • Publication number: 20130125567
    Abstract: Device for cool drying gas includes a heat exchanger whose primary part is the evaporator of a cooling circuit. The gas to be dried is guided through the secondary part of the heat exchanger to cool the gas and to condense water vapour out of the gas. At least one bypass pipe is provided with a control valve which is controlled by a control unit as a function of signals received from a measuring element for measuring the lowest gas temperature (LAT) or the dew point of the gas in the secondary part of the heat exchanger. The measuring element is positioned directly inside the secondary part of the heat exchanger. Also provided is a measuring element for measuring the temperature of the coolant in the evaporator.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 23, 2013
    Inventors: Frits Cornelis A. Baltus, Johan Hendrik R. De Herdt, Frank Jacques E. Roelants
  • Publication number: 20130098080
    Abstract: A method and system for condensing water from ambient air. A dew extracting device with a dew extraction zone having surfaces has the surfaces chilled to below dew temperature for a first period of time. An air moving device directs a flow of air over the chilled surfaces so that liquid water condenses on the surfaces, raising the temperature of the surfaces. The chilling of the surfaces is terminated for a second period of time and liquid water is removed from the surfaces and heat of condensation is removed from the dew extraction zone. Then the process repeats to obtain additional liquid water.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 25, 2013
    Inventor: Robert P. Biancardi
  • Patent number: 8424320
    Abstract: An air dehumidifier, and a method for dehumidifying, for a frequency converter arrangement including a surface to be cooled, on which humidity condenses when the surface is being cooled and when, at the same time, the inside of the frequency converter cabinet is possibly being heated. The air dehumidifier is positioned inside the frequency converter cabinet and including at least one air/liquid heat exchanger.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 23, 2013
    Assignee: ABB Oy
    Inventor: Jari-Pekka Matsinen
  • Patent number: 8408015
    Abstract: A cooling recover system and method are disclosed. A fluid, such as water, is chilled and provided to a cooling coil to cool and dehumidify air passing over the cooling coil. The fluid is output from the cooling coil through an outlet, and at least a portion of the fluid from the outlet of the cooling coil is provided to an inlet of a heat transfer coil to reheat air passing over the heat transfer coil. The fluid is warmed as it passes through the cooling coil, which warmer temperature serves to reheat the air passing over the heat transfer coil.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: April 2, 2013
    Inventor: Scot M. Duncan
  • Publication number: 20130074528
    Abstract: An air dehumidification unit of a heating, ventilating, and air conditioning system includes an air flow channel configured to guide a flow of air through an evaporator disposed therein, and a drainage channel coupled to the air flow channel. The drainage channel has an internal volume configured to receive a fluid condensed at the evaporator from the flow of air. The air dehumidification unit further includes a heating device configured to heat the internal volume of the drainage channel from outside of the internal volume of the drainage channel to militate against a formation of ice therein. The invention also relates to a method for dehumidifying the air in the heating, ventilating, and air conditioning system of a motor vehicle using the air dehumidification unit.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 28, 2013
    Applicant: Visteon Global Technologies, INC.
    Inventor: Visteon Global Technologies, INC.
  • Patent number: 8397522
    Abstract: A dynamic system controls indoor relative humidity and temperature to achieve specified conditions by applying multiple stages of dehumidification. In addition to a stage that increases dehumidification by reducing the speed of the indoor blower, the system uses a reheat coil and multiple valves that allow the reheat coil to function as either a subcooling coil or a partial condenser. Thus the system can maintain specified indoor temperature and humidity conditions even at times when no heating or cooling is needed. The system may have an outdoor condensing unit including a compressor and a condenser operably connected via refrigerant lines to an indoor unit to form a “split system” refrigerant loop.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 19, 2013
    Assignee: Davis Energy Group, Inc.
    Inventors: David A. Springer, Marc A. Hoeschele, James H. Phillips
  • Publication number: 20130047642
    Abstract: A system for filtering inlet air of an air conditioner air handler, and method of filtering inlet air without a conventional filter, said system is a structure comprising: an air inlet, an air directing structure, a water chamber, positioned within an internal cavity, a structure for directing condensate from an air handler into said water chamber, a drain positioned to impart a maximum water level of water accumulated in said first water chamber; a second air directing structure configured to direct air from said first internal cavity towards an outlet that is affixed to the inlet of an air conditioner air handler.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Inventor: Nivaldo Cerdan
  • Publication number: 20130014522
    Abstract: There is a growing need for dehumidification control in refrigerated transport containers with an intermittently operated compressor. The disclosed system and method of dehumidification control, controlling the speed of one or more evaporator fans and a heating unit, meets that need using one or more dehumidification need indicators and one or more condensation indicators.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 17, 2013
    Applicant: A.P. MOLLER - MAERSK A/S
    Inventors: Leijn Johannes Sjerp Lukasse, Janneke Emmy De Kramer-Cuppen
  • Publication number: 20130008196
    Abstract: A device for extracting water contained in the air by condensation is provided. The device includes: a fan for creating an air flow; a heat transfer fluid evaporator for condensing the water in the air flow created by the fan; and a compressor for compressing the heat transfer fluid evaporated by the evaporator, which compressor is placed in the air flow downstream of the evaporator. A system for producing drinking water from the air is also provided, which includes the aforementioned water extraction device. The system can be used to produce water from the air, with an improved performance.
    Type: Application
    Filed: March 24, 2011
    Publication date: January 10, 2013
    Applicant: WWS
    Inventor: Michel Poyet
  • Patent number: 8347640
    Abstract: A dehumidifier includes an air flow path with first, second and third segments in series from upstream to downstream and passing ambient air respectively to an evaporator coil then to a condenser coil and then discharging same. The air flow path has a fourth segment passing ambient air to the condenser coil in parallel with the noted second air flow path segment. A bypass door is configured to selectively block air flow along the fourth segment and allow air flow along the fourth segment.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: January 8, 2013
    Assignee: Technologies Holdings Corp.
    Inventors: Todd DeMonte, Scott E. Sloan, Steven S. Dingle, Timothy S. O'Brien, Phillip R. Steinmetz
  • Patent number: 8282830
    Abstract: Devices and methods for producing purified water. The device includes a reverse osmosis subsystem, a dehumidification subsystem and a purified water storage tank fluidly coupled to the subsystems such that purified water produced by each can be locally stored. A vehicular platform, such as a ship, can be used to locate the device adjacent a supply of saline water and humid air. A saline water inlet, membrane and purified water outlet cooperate in the reverse osmosis subsystem to allow preferential passage of water relative to salt in a saline water supply, while the dehumidification subsystem includes a heat exchanger that extracts moisture from the ambient humid air. Purified water produced by each of the subsystems can be used as a potable water source.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: October 9, 2012
    Inventor: Ival O. Salyer
  • Publication number: 20120247133
    Abstract: An air-conditioning apparatus with a manual dehumidifying function and a method for operating the same are disclosed. The air-conditioning apparatus is applied to an equipment room for air conditioning and dehumidifying the equipment room. The method of operating the air-conditioning apparatus includes the following steps: First, a temperature-sensing unit and a humidity-sensing unit are used to sense an ambient temperature and an ambient relative humidity in the equipment room, respectively. Afterward, a display unit is used to display the sensed ambient temperature and the sensed ambient relative humidity. Afterward, the air-conditioning apparatus is judged by a control unit to be manually controlled to execute the dehumidifying function. Afterward, the control unit of the air-conditioning apparatus is used to provide a variable air control and a variable water control for dehumidifying the equipment room.
    Type: Application
    Filed: August 10, 2011
    Publication date: October 4, 2012
    Inventors: Hui-Chien Kao, Jen-Te Liang
  • Publication number: 20120247132
    Abstract: An air conditioning unit having: a first air passageway and a second air passageway adjacent to the first air passageway. Dampered air inlets are provided at one end of the first and second air passageways to selectively provide indoor air or outdoor air to each passageway. There is an indoor air outlet in the first air passageway and an outdoor air outlet in the second air passageway, both outlets at the other end of the passageways. There is a first blower in the first passageway and a second blower in the second passageway for moving air through each passageway. The unit has a refrigerant system with an evaporator in the first passageway, a compressor, a condenser in the second passageway, and a refrigerant line joining the evaporator, the compressor, and the condenser, in series, in a closed loop. The unit can be used in an air conditioning mode, a dehumidifying mode and a purge/ventilating mode. The unit is particularly suited for use in an indoor swimming pool.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Inventors: Ness Lakdawala, Gary Jones
  • Patent number: 8268030
    Abstract: The invention provides wind energy use. One application provides wind energy use for water harvesting from natural humid air. The method is based on changing thermodynamic state parameters of ambient wind air portions passed through a device comprising convergent-divergent and wing-like components. Those components transform the ambient wind portions into fast and cooled outflowing air portions. A decrease in static pressure and temperature triggers condensation of water-vapor into water-aerosols. Another application of the method provides an effective mechanism for harvesting electrical energy from naturally warm air using renewable wind energy, including the wind inertia, internal heat, and potential energy stored in the air mass in the Earth's gravitational field. The electrical energy harvesting mechanism is also applicable to use of natural renewable energy of streaming water.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 18, 2012
    Inventor: Yuri Abramov
  • Publication number: 20120198867
    Abstract: A method and apparatus are disclosed for controlling dehumidification of an airflow to be conditioned for supply to a climate controlled space. The airflow to be conditioned is passed over a plurality of refrigerant conveying conduits of an evaporator of a refrigerant vapor compression thereby cooling the airflow. A controller operates the refrigeration vapor compression system to maintain the airflow at a set point air temperature indicative of a desired temperature within the climate controlled space. The controller also adjusts an evaporator expansion device for controlling the flow of refrigerant through the evaporator so as to reduce the temperature of the refrigerant within the refrigerant conveying conduits of the evaporator whenever further dehumidification of the air flow to be conditioned is desired.
    Type: Application
    Filed: October 7, 2010
    Publication date: August 9, 2012
    Applicant: CARRIER CORPORATION
    Inventors: Swee M. Ng, Martin O. Johnson, Raymond L. Senf, JR.
  • Publication number: 20120186282
    Abstract: An air cooling system includes a heat exchanger, an inlet duct, an outlet duct, and an outlet header. The inlet duct is fluidly connected to the heat exchanger and is configured to direct relatively warm air from the cabin into the heat exchanger. The outlet duct is fluidly connected to the heat exchanger and configured to direct relatively cool air out of the heat exchanger and back to the cabin. The outlet header is located between the heat exchanger and the outlet duct. The outlet header has a shape configured to collect water from the cool air.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 26, 2012
    Applicant: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Steven D. Army, Charles J. McColgan
  • Patent number: 8225619
    Abstract: The present invention provides a technique for rapidly removing frost accumulated in air-refrigerant cooling apparatuses. An air-refrigerant cooling apparatus in accordance with the present invention includes a bypass line for directly supplying a defroster with refrigerant air having an increased temperature from a compressor, avoiding temperature drop by a heat exchanger and an expansion turbine. Moisture of the frost melted in the defroster is externally exhausted by a fan.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: July 24, 2012
    Assignees: Mitsubishi Heavy Industries, Ltd, International Center for Environmental Technology Transfer
    Inventors: Seiichi Okuda, Masato Mitsuhashi
  • Patent number: 8221514
    Abstract: The invention provides an ecologically clean method and apparatus for water harvesting from air. The method is based on changing of thermodynamic state properties of air wind getting a rotation and passing through convergent-divergent nozzles. The apparatus is a water condensation engine exposed to humid wind. The constructive solution has no moving solid parts, and the incoming wind is an inherent moving component of the engine. It comprises a cascade of sequentially arranged horn-tubes and a set of stationary wing-like details. Those horn-tubes transform the wind into a fast and cooled out-flowing air flux coming-and-hitting upon the set of wing-like details, where the air portions are accelerated and eddying. The inner static pressure and temperature decrease in the air portions. The decrease in static pressure and temperature triggers off condensation of water-vapors into water-aerosols.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: July 17, 2012
    Assignee: Yuri Abramov
    Inventor: Yuri Abramov
  • Patent number: 8220277
    Abstract: Recuperation systems and methods are applied to vapor compression cycles in dehumidification, such as in air conditioning. In some embodiments, a method for dehumidification includes introducing a refrigerant from a heating unit to a cooling unit along a first path; introducing the refrigerant from the cooling unit to the heating unit along a second path different from the first path; introducing the refrigerant from the heating unit to the cooling unit along a third path different from the first path; and contacting the cooling unit and the heating unit with a first gas stream.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 17, 2012
    Assignee: Tiax LLC
    Inventors: John T. Dieckmann, Detlef Westphalen
  • Publication number: 20120174603
    Abstract: An apparatus for water reclamation includes an inlet head for admitting warm humid ambient air, a buried pipe coupled at a first end to the inlet head and sloping downward in the ground from the first end. Water condenses as the air is cooled in the buried pipe and collects in a cistern coupled at a second end of the buried pipe. A tube coupled at a lower end near the second end of the buried pipe includes a heated element extending at least partially into the tube from an upper end of the tube. Cooled air is heated by the heated element and is expelled at the top of the tube. A heater is coupled to an upper end of the heated element. The heater may be a solar collector with a Bernoulli aperture.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 12, 2012
    Inventor: Javier Fernandez-Han
  • Publication number: 20120167618
    Abstract: As described herein, a method and system for operating a refrigeration system are provided. In the present methods and systems, a portion of the refrigerant from the refrigeration system is used for reducing the temperature of inlet air entering the gas turbine. The refrigeration system disclosed herein can be used for LNG production, air separation, food storage, or ice-making.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 5, 2012
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stanley H. Huang, Robert C. Havlik
  • Patent number: 8209990
    Abstract: An electrostatically atomizing unit for use in a temperature regulating appliance to add a function of generating a mist of charged minute water particles for deodorization and/or sterilization of a temperature-regulated space. The appliance has a cold space of which air is cooled by cooling means and is fed to cool the temperature-regulated space divided from the cold space by a partition. The atomizing unit has an emitter electrode which is configured to condense water from within a surrounding air. A high voltage source applies a high voltage to the emitter electrode to atomize the condensed water into the charged minute water particles which are discharged from the emitter electrode into the temperature-regulated space. The emitter electrode is provided with a cooling coupler which establishes a heat transfer relation through the partition to the cold space to cool the emitter electrode by making the use of the cooling means inherent to the appliance.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 3, 2012
    Assignee: Panasonic Corporation
    Inventors: Takayuki Nakada, Hiroshi Suda, Masaharu Machi, Tomohiro Yamaguchi
  • Patent number: 8196422
    Abstract: The present invention is directed at a solar powered heat exchange system preferably used to drive a water collection device, which condenses water vapor in atmospheric air to water. The device comprises means for drawing the atmospheric air into the device; means for condensing the moisture vapor in the atmospheric air into water; and means for collecting the water.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: June 12, 2012
    Inventor: Jonathan G. Ritchey
  • Publication number: 20120102987
    Abstract: Systems and methods provide for cooling air in a power generation system. The system includes: an air handling unit configured to receive air, to cool the air and to remove moisture from the air; a first compressor fluidly connected to the air handling unit and configured to receive the air from the air handling unit and to exhaust a first compressed, heated air flow; a vapor absorption chiller connected to the first compressor and configured to transfer heat energy between a plurality of mediums and to cool the first compressed, heated air flow; and a second compressor connected to the vapor absorption chiller and configured to receive the cooled first compressed, heated air flow and to exhaust a second compressed, heated air flow.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: NUOVO PIGNONE S.P.A.
    Inventors: Sanjay ANIKHINDI, Bhaskara KOSAMANA
  • Publication number: 20120096879
    Abstract: An aircraft fuel tank ventilation system, comprising a refrigerative dehumidifying device having a refrigerating element in contact with air flowing between a vent open to the atmosphere and a fuel tank. Also, a method of dehumidifying air introduced into an aircraft fuel tank via the ventilation system, the method comprising directing atmospheric air from the vent into contact with the refrigerating element, and cooling the refrigerating element so as to remove water vapour from the air flowing from the vent towards the fuel tank by condensation. An aircraft fuel tank ventilation system, comprising a refrigerative dehumidifying device having a refrigerating element in contact with air flowing between a vent open to the atmosphere and a fuel tank.
    Type: Application
    Filed: July 12, 2010
    Publication date: April 26, 2012
    Applicant: AIRBUS OPERATIONS LIMITED
    Inventors: Joseph K-W Lam, Franklin Tichborne, Simon Masters, David Parmenter
  • Patent number: 8156747
    Abstract: A supply method without cooling medium for an air conditioner comprises the steps of removing moisture, separating cold air from hot air and supplying. Under the condition of no cooling medium, the above-mentioned steps separate the moisture from the compressed air, separate the cold air from the hot air and supply the cold air and the hot air. The system using the supply method without cooling medium for an air conditioner comprises at least one air dryer having an air-moisture separation chamber for separating air from moisture and at least one separator having a separation chamber for separating cold air from hot air. The separator is connected to a pipeline to supply the cold air and the hot air. Thereby, the environment will not be destroyed, and the cold and hot air are supplied separately, which allows the user to use the cold or hot air according to his/her requirement.
    Type: Grant
    Filed: March 30, 2008
    Date of Patent: April 17, 2012
    Inventor: Jack Lee
  • Patent number: 8151579
    Abstract: A cooling recover system and method are disclosed. A fluid, such as water, is chilled and provided to a cooling coil to cool and dehumidify air passing over the cooling coil. The fluid is output from the cooling coil through an outlet, and at least a portion of the fluid from the outlet of the cooling coil is provided to an inlet of a heat transfer coil to reheat air passing over the heat transfer coil. The fluid is warmed as it passes through the cooling coil, which warmer temperature serves to reheat the air passing over the heat transfer coil.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: April 10, 2012
    Inventor: Scot M. Duncan
  • Publication number: 20120067069
    Abstract: The present invention discloses the special and unique process for a Closed Circuit Food Dehydration Process wherein the uniqueness of the present invention lies in the combination of chilling recirculating air within an enclosed chamber containing the food to be dehydrated to extract and remove latent moisture from within the recirculating air and subsequently heating the selfsame recirculating air to increase the dehydrating efficiency of the Closed Circuit Food Dehydrating Process. An additional feature of the present invention is the recirculation of the air within the enclosed chamber without the communication of air from without the enclosed chamber during the dehydration process.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 22, 2012
    Inventor: Corban Douglas Wells
  • Publication number: 20120060523
    Abstract: A space conditioning system comprising an evaporator subunit (ES) and control subunit (CS). The ES includes at least three evaporator stages in a pathway of air flow through the ES. First and second stages are adjacent and have major surfaces substantially parallel to each other. A third stage is located in the pathway before the first stage. A major surface of the third stage covers the major surface of the first stage in a same pathway direction. The major surfaces are substantially perpendicular to the pathway. The CS is configured to operate the evaporator subunit in at least one of two partial load cooling modes. In a first mode, the CS causes refrigerant to circulate through the first and second but not through the third stage. In a second mode, the control subunit causes the refrigerant to circulate through the first and third stage but not through the second stage.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Applicant: Lennox Industries Inc.
    Inventor: Der-Kai Hung
  • Publication number: 20120047923
    Abstract: A heat pump system for conditioning outside air supplied to a building is provided. The system includes a pre-processing module that receives and cools air when the system is operating in a summer mode. A supply air heat exchanger is in flow communication with the pre-processing module. The supply air heat exchanger receives and cools air from the pre-processing module in the summer mode. A processing module is in flow communication with the supply air heat exchanger. The processing module receives and dehumidifies saturated air from the supply air heat exchanger in the summer mode.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 1, 2012
    Applicant: VENMAR CES INC.
    Inventor: DAVID MARTIN WINTEMUTE
  • Patent number: 8122729
    Abstract: A dehumidification system for removing moisture from the air within a structure comprises a refrigerant system and a heat transfer system. The refrigerant system comprises a condenser section and an evaporator section. The heat transfer system comprises a first coil and a second coil. A primary air path extends through the first coil, the evaporator section, and the second coil. A secondary air path extends through the condenser section.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: February 28, 2012
    Assignee: Dri-Eaz Products, Inc.
    Inventors: William E. Bruders, Brandon Burton, Tom Schnelle
  • Patent number: 8117855
    Abstract: Modernized refrigeration cycle includes two consecutive expansions with two expansion devices and two condensers, wherein the first condenser liquefies refrigerant after compressor and the second condenser liquefies refrigerant after the first expansion device. The cooling medium for the second condenser is either air to be conditioned in the refrigeration system or another available medium. Invention presents sealed systems of air conditioners, dehumidifiers and heat pumps operating per aforementioned refrigeration cycle that allows enhanced dehumidification with efficiency improvement in cooling mode and heating capacity and efficiency increase in heating mode.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: February 21, 2012
    Inventor: Alexander P Rafalovich
  • Patent number: 8075245
    Abstract: Embodiments of the disclosure may provide an exemplary method for operating a compressor system, wherein the method may include cooling a process gas containing water vapor to a first temperature. The water vapor may form a condensate at the first temperature, and cooling the process gas may produce residual heat. At least a portion of the condensate is removed from the process gas, wherein any portion of the condensate that is not removed is a remaining condensate. The remaining condensate may be heated to a second temperature with the residual heat, wherein the remaining condensate in the process gas evaporates at the second temperature.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: December 13, 2011
    Assignee: Dresser-Rand Company
    Inventors: Robert R. Odle, David C. Seib
  • Patent number: 8033122
    Abstract: A dehumidifier unit includes a first coil in fluid communication with a source of cooling fluid, a second coil in fluid communication with the source of cooling fluid, a third coil in fluid communication with the source of cooling fluid, and a thermal unit disposed between the source of cooling fluid and the second and third coils. The thermal unit may be adapted to remove heat from cooling fluid flowing to the second coil and adapted to heat cooling fluid flowing to the third coil. A fan may be configured to move air across the first, second and third coils. The first coil may be configured to pre-cool air moving over the first coil, the second coil may be configured to dehumidify the air moving over the second coil, and the third coil may be configured to warm the air moving over the third coil. Other embodiments and methods of cooling are further disclosed.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: October 11, 2011
    Assignee: American Power Conversion Corporation
    Inventor: John H. Bean, Jr.
  • Patent number: 8015832
    Abstract: A refrigerant flow dividing apparatus of a heat exchanger for refrigerating apparatus is provided with a minimal number of refrigerant flow regulating valves and suppresses increase in the size and costs of the apparatus. Refrigerant is supplied to paths of the heat exchanger for refrigerating apparatus including a heat exchanger for reheat dehumidification via a refrigerant flow divider provided with paths. Each path of the refrigerant flow divider is provided with a refrigerant flow regulating valve, and a predetermined one of the refrigerant flow regulating valves of the paths also functions as a reheat dehumidification valve.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: September 13, 2011
    Assignee: Daikin Industries, Ltd.
    Inventors: Takayuki Setoguchi, Makoto Kojima
  • Patent number: 8006503
    Abstract: A gas compression system includes a flow of compressed gas, a separator positioned to receive the flow of compressed gas and discharge a second flow of compressed gas and a flow of condensate, and a flow of compressed refrigerant. A heat exchanger is positioned to receive the flow of condensate and the flow of compressed refrigerant. The heat exchanger is arranged such that the flow of condensate cools the flow of refrigerant.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 30, 2011
    Assignee: Ingersoll-Rand Company
    Inventors: James C. Collins, David V. Woodward
  • Publication number: 20110203300
    Abstract: Modernized refrigeration cycle includes two consecutive expansions with two expansion devices and two condensers, wherein the first condenser liquefies refrigerant after compressor and the second condenser liquefies refrigerant after the first expansion device. The cooling medium for the second condenser is either air to be conditioned in the refrigeration system or another available medium. Invention presents sealed systems of air conditioners, dehumidifiers and heat pumps operating per aforementioned refrigeration cycle that allows enhanced dehumidification with efficiency improvement in cooling mode and heating capacity and efficiency increase in heating mode.
    Type: Application
    Filed: February 19, 2010
    Publication date: August 25, 2011
    Inventor: Alexander P. Rafalovich
  • Publication number: 20110185752
    Abstract: The air to be supplied to a room is brought to a desired temperature and a desired humidity through the following process steps: making outside air flow as a first air stream through a first line (20) and making a first portion of exhaust air coming from the room flow as a second air stream through a second line (21), wherein moisture is exchanged between the first air stream and the second air stream by means of a device for exchanging humidity, condensing, by means of a dehumidifying and cooling device (19), moisture in the form of water from the first air stream and/or from the second air stream and/or inside the device for exchanging humidity, and making a second portion of the exhaust air flow as a third air stream through another line (32) comprising another dehumidifying and cooling device (33) and returning said second portion back to the room, wherein in the other dehumidifying and cooling device (33) moisture is condensed from the third air stream in the form of water.
    Type: Application
    Filed: July 8, 2009
    Publication date: August 4, 2011
    Applicant: MENTUS HODING AG
    Inventors: Reto Holzner, Gustav Hans Weber, Urs A. Weidmann
  • Publication number: 20110185751
    Abstract: A hybrid air system is provided for conditioning the air in a building and includes first and second independent air conditioning systems, one system having a larger capacity than the other and an independent dehumidifier each work independently and together to control the air on the inside of a building. The hybrid system improves air comfort while increasing efficiency and reducing operating costs and use of energy.
    Type: Application
    Filed: January 12, 2011
    Publication date: August 4, 2011
    Inventors: William S. Carson, Sylvia H. Carson
  • Patent number: 7987680
    Abstract: Between two heat exchangers of a first heat exchanger unit 41 and a second heat exchanger unit 42 included in an indoor heat exchanger 40, an opening 80 is arranged for introducing indoor air sucked from an air inlet 321 into an indoor blower 50 without being heat-exchanged. At the opening 80, a damper 91 is arranged for adjusting the opening rate of the opening 80, which is driven by a predetermined driving member 92. During a cooling cycle running of a freezing cycle, the opening rate of the opening 80 and/or the devices included in the freezing cycle such as a compressor, blower and expansion valve are controlled alone or in combination so that the temperature of the indoor heat exchanger 40 is lower than a dew point temperature of the indoor air.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: August 2, 2011
    Assignee: Fujitsu General Limited
    Inventors: Mamoru Hamada, Hiroki Igarashi, Atsushi Itagaki, Takafumi Arima, Hiroaki Watanuki, Yoshihiro Sasaki, Masamitsu Usui
  • Publication number: 20110174000
    Abstract: A method for operating an HVAC system includes the steps of adjusting a heating temperature of a heat exchanger disposed in a first flow passage, directing a first partial air mass flow through the first flow passage, directing a second partial air mass flow through a second flow passage, and directing the first partial air mass flow and the second partial air mass flow downstream of the first flow passage and the second flow passage, wherein the heating temperature of the heat exchanger required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is set as a maximum heating temperature for the heat exchanger, and wherein only an amount of energy required to at least one of achieve and maintain a desired climate in the passenger compartment of the vehicle is added to the HVAC system.
    Type: Application
    Filed: January 18, 2011
    Publication date: July 21, 2011
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Gerald Richter, Tobias Haas, Marc Graaf
  • Publication number: 20110167846
    Abstract: A method for dehumidification and controlling system pressure in a refrigeration system includes providing a refrigeration system having a compressor, a condenser and an evaporator connected in a closed refrigerant loop. Each of the condenser and evaporator have a plurality of refrigerant circuits. A first heat transfer fluid is flowed over the condenser and a second heat transfer fluid is flowed over the evaporator. At least one of the refrigerant circuits of the condenser is isolated to provide a decreased amount of heat transfer area within the condenser and to increase the refrigerant pressure within the refrigeration system when the refrigerant pressure within the refrigeration system is at or below a predetermined pressure. At least one of the refrigerant circuits of the evaporator is isolated to dehumidify and maintain the temperature of the second heat transfer fluid at or above a predetermined temperature when dehumidification is required.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 14, 2011
    Applicant: YORK INTERNATIONAL CORPORATION
    Inventors: John Terry KNIGHT, Anthony William LANDERS, Patrick Gordon GAVULA, Stephen Blake PICKLE
  • Publication number: 20110162394
    Abstract: An air conditioner includes an air-conditioning unit to exchange heat between air in an interior space and an exterior space using an exchange medium flowing through the air-conditioning unit and/or to dehumidify the interior space. A control unit controls the air-conditioning unit to dehumidify the interior space using a plurality of dehumidifying temperatures and a plurality of dehumidifying time, where at least one dehumidifying time is preset for a corresponding dehumidifying temperature and when the preset dehumidifying time has expired the corresponding dehumidifying temperature is changed to a next dehumidifying temperature.
    Type: Application
    Filed: September 15, 2010
    Publication date: July 7, 2011
    Inventors: Juyoun Lee, Jaedong Jang
  • Publication number: 20110146306
    Abstract: A refrigerant system has a compressor for compressing and delivering refrigerant to a heat rejecting heat exchanger. Refrigerant from the heat rejecting heat exchanger passes through an expansion device, and then to an evaporator. A reheat circuit includes a reheat valve for selectively tapping refrigerant from a location downstream of the compressor and upstream of the condenser. The reheat refrigerant passes through a reheat heat exchanger, the reheat heat exchanger being positioned to be in a path of air having passed over the evaporator, and delivered into an indoor environment to be conditioned.
    Type: Application
    Filed: September 2, 2009
    Publication date: June 23, 2011
    Inventor: Michael F. Taras
  • Patent number: 7927406
    Abstract: The water droplet generating system includes a vessel, an opening/closing valve, a moisture absorbent member, and a condenser portion. The vessel has an opening portion. The opening/closing valve opens and closes the opening portion. The water absorbent member absorbs and releases water vapor depending on a change of humidity. The condenser portion is communicated with the inside of the vessel and cools water vapor released from the moisture absorbent member to be at a dew point of water vapor or less. When the opening portion is opened, the moisture absorbent member absorbs water vapor in atmosphere. When the opening portion is closed, the moisture absorbent member releases water vapor, and the condenser portion condenses water vapor, which is released from the moisture absorbent member, to generate a water droplet.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: April 19, 2011
    Assignee: Denso Corporation
    Inventor: Yukihisa Takeuchi
  • Publication number: 20110083453
    Abstract: A system for producing potable water from atmosphere includes an enclosure with at least one intake port and exhaust port. The system includes a plurality of panels arranged within the enclosure substantially parallel to each other along a central axis. Each of the panels is made of a material on which water condensate from the atmosphere forms in response to a temperature differential between the material and the atmosphere passed through the enclosure. The system includes a plurality of conduits arranged to pass through the panels. A cooling fluid is passed through the conduits to cool the panels. The amount of water condensate formed on surfaces of the panels in response to cooling is detected. The panels are rotated about the central axis within the enclosure to remove the water condensate from the surfaces of the panels when the detected amount of water condensate exceeds a predetermined threshold.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Inventor: Diego Luis Filipe Bernardo Castanon Seoane
  • Patent number: RE42907
    Abstract: Device for conditioning water produced by environmental conditioning or dehumidification apparatuses or plants, comprising a device (2) for measuring the quantity of water produced by a condenser (1) which transforms atmospheric humidity into water, a feeder (4) of a corrective composition of salts and mineral substances, preferably in the form of tablets (P), for dispensing at least one of them in proportion to the quantity of water measured, a mixing vessel (5) receiving the measured water and at least a tablet (P) provided by the feeder (4), a control and command unit (6) that activates the feeder (4) in proportion to the quantity of water measured and received, and a tank (7) for collecting and filtering the water provided with means (70) for filtering micro-organisms and bacteria and a valve (81) for the exit of potable water.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: November 15, 2011
    Inventor: Osman Akkad