External Cooling Fluid Contacts Heat Rejector Patents (Class 62/506)
  • Patent number: 10458687
    Abstract: Embodiments of the present disclosure relate to a heating, ventilation, air conditioning, and refrigeration (HVAC&R) system that includes a refrigerant loop, a compressor disposed along the refrigerant loop and configured to circulate refrigerant through the refrigerant loop, and an evaporator disposed along the refrigerant loop and configured to place the refrigerant in thermal communication with a cooling fluid, where the refrigerant surrounds a tube bundle disposed in the evaporator, the tube bundle is configured to flow the cooling fluid, and the evaporator has a height based at least on a target height of a liquid level of refrigerant in the evaporator, the evaporator includes a discharge configured to direct the vapor refrigerant from the evaporator to an inlet of the compressor, and an interface between the discharge and the inlet is without a bend.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: October 29, 2019
    Assignee: Johnson Controls Technology Company
    Inventors: Jay A. Kohler, Patrick Christian Marks, Ian Michael Casper, Kurt Devlin
  • Patent number: 10132527
    Abstract: An electrohydrodynamic (EHD) pump increases refrigerant flow rate and the resulting pressure in a vapor compression based cooling system for permitting reduced compressor sizes and power demands. The EHD pump disposes electrodes in a liquid path of the refrigerant flow, and increases fluid flow and resulting pressure by an induced liquid flow between a pair of asymmetric electrodes. Voltage applied to these electrodes results in a conduction pumping mechanism associated with heterocharge layers in the vicinity of the electrodes based on disassociation of a neutral electrolyte species in the refrigerant fluid and recombination of the generated ions. The induced flow draws the liquid due to a net fluid flow toward one of the electrodes based on the asymmetry of the electrode pair. Electrodes are disposed on an inner surface of a refrigerant vessel, in communication with an annular liquid film that forms around the inner circumference in two-phase fluid systems.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 20, 2018
    Assignee: Worcester Polytechnic Institute
    Inventor: Jamal S. Yagoobi
  • Patent number: 9970694
    Abstract: This application relates to a coolant condenser assembly for an air conditioning system for a motor vehicle. In a supercooling region, at least two cooling pipes, as the first supercooling parallel section, are acted upon in parallel by the coolant in a fluid-conducting manner, the coolant which flows out of the first supercooling parallel section flows into a first supercooling intermediate flow duct, and the first supercooling intermediate flow duct opens into at least two cooling pipes as the second supercooling parallel section, and the second supercooling parallel section opens into a second supercooling intermediate flow duct and the second supercooling intermediate flow duct opens into at least two cooling pipes as the third supercooling parallel section, such that the outlet opening is disposed on a second longitudinal side of the coolant condenser assembly.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: May 15, 2018
    Assignee: MAHLE International GmbH
    Inventors: Guillaume David, Uwe Förster, Matthias Jung, Andreas Kemle, Christoph Walter, Herbert Hofmann
  • Patent number: 9194593
    Abstract: A protective housing is provided for a heating, ventilation, and air conditioning (HVAC) unit having a fan therein. The fan comprises a plurality of blades, each blade having a proximal and distal end. The housing comprises a plurality of side panels, each side panel comprising openings enabling airflow into the housing. The housing further comprises an access panel that is coupled between two of the plurality of side panels wherein the access panel and the plurality of side panels form an enclosure. An orifice ring is mounted within the housing, wherein a running clearance between the distal end of the fan blades and the orifice ring has a first spacing. A cover fastens atop the enclosure, the cover comprising a grill having a plurality of grill members, wherein the grill members are separated by a second spacing, the second spacing being smaller than the first spacing.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: November 24, 2015
    Assignee: Lennox Industries Inc.
    Inventor: Robert B. Uselton
  • Patent number: 9140473
    Abstract: A condenser for a vehicle is used in an air conditioning having an expansion valve, an evaporator, and a compressor, is provided between the compressor and the expansion valve, and circulates coolant supplied from a radiator to condense refrigerant supplied from the compressor through heat-exchange with the coolant and the refrigerant.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: September 22, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Jae Yeon Kim
  • Publication number: 20150143826
    Abstract: A refrigeration system includes: a compressor arrangement for compressing gaseous refrigerant from a first pressure to a second pressure, wherein the second pressure comprises a condensing pressure; a first condenser evaporator system and a second condenser evaporator system, where in the first condenser evaporator system and the second condenser evaporator system are arranged in parallel and each comprises: (1) a condenser for receiving gaseous refrigerant at a condensing pressure and condensing the refrigerant to a liquid refrigerant, where in the condenser comprises a gaseous refrigerant inlet, a plate and a liquid refrigerant outlet, and a water delivery system for delivering water to an outside of the plate for removing heat from the plate; (2) a controlled pressure receiver for holding the liquid refrigerant from the condenser; and (3) an evaporator for evaporating the liquid refrigerant from the controlled pressure receiver to form the gaseous refrigerant; a first gaseous refrigerant feed line for feed
    Type: Application
    Filed: October 31, 2014
    Publication date: May 28, 2015
    Inventor: John Lingelbach
  • Publication number: 20150033771
    Abstract: The present technology provides a modular refrigeration and heat reclamation chiller system comprising an evaporator configured to vaporize a refrigerant to cool the refrigerant, a compressor coupled to the evaporator and configured to compress the refrigerant, a condenser coupled to the compressor and configured to condense the refrigerant compressed by the compressor, a sub-cooler coupled to the condenser and configured to receive the refrigerant from the condenser so as to selectively extract heat from the refrigerant and to transfer the refrigerant to the evaporator, and an expansion valve coupled to both the sub-cooler and the evaporator.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 5, 2015
    Inventors: John P. Meade, Alexander J. Meade
  • Publication number: 20150013353
    Abstract: The invention relates to a compressor-heat exchanger unit for a heating-cooling module for a motor vehicle, in which at least one fluid serving as a coolant flows, comprising a compressor device for compressing the first fluid, at least one heat exchanger device that has at least one first circuit for the first fluid to flow through and a second circuit for a second fluid to flow through, this heat exchanger unit being arranged in the fluid stream after the compressor device, characterised in that the first fluid is guided at least partially in flow channels of the first circuit that at least partially enclose the compressor device.
    Type: Application
    Filed: January 10, 2013
    Publication date: January 15, 2015
    Inventors: Uwe Becker, Jens Dittmar, Tilo Schaefer, Gholam Reza Zakeri
  • Publication number: 20140305158
    Abstract: An interior condenser (1, 32) which is accommodated in an HVAC unit of a vehicle air-condoning heat pump system, the interior condenser including: a heat exchange core (6) that is composed of stacked tubes (2) and fins (4); a refrigerant inflow/outflow-side tank (10, 34) to which one end portions of the tubes are connected; a refrigerant turn-side tank (12) to which the other end portions of the tubes are connected; a partition wall (14) that separates an inner portion of the refrigerant inflow/outflow-side tank into a refrigerant inflow chamber (16) and a refrigerant outflow chamber (18); a refrigerant inlet tube (28) that is connected to the refrigerant inflow/outflow-side tank to communicate with the refrigerant inflow chamber; and a refrigerant outlet tube (30) that is connected to the refrigerant inflow/outflow-side tank to communicate with the refrigerant outflow chamber, wherein the refrigerant outlet tube is connected to the refrigerant inflow/outflow-side tank at a position below the core.
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Inventors: Shinji Kouno, Yusuke Iino, Yuuichi Matsumoto
  • Patent number: 8763417
    Abstract: The refrigeration system of this invention utilizes a water cooled condenser which is made of multiple water pans with refrigeration coil soldered underneath for multi-stages cooling. The water pans are stacked on top of each other with the hottest coil located at the bottom. The bottom water pan dries up water faster than the other water pans since it has the hottest coil soldered underneath. Once the water level of the bottom water pan is low enough to be refilled, the supply water fills in from the top water pan and propagating downward to the water pan down below until it reaches the water pan at the bottom. The water refilling ceases once the bottom water pan is full. The unwanted heat from a refrigeration system is transferred from the refrigerant to the water, and then from the water to the air by evaporation.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: July 1, 2014
    Inventor: Hui Jen Szutu
  • Publication number: 20130312441
    Abstract: A heat exchanger assembly includes a plurality of tubes, each having an inlet end and an outlet end. An inlet header is configured to receive a cooling fluid and to distribute the cooling fluid to the inlet ends of the plurality of tubes. An outlet header includes an outer shell and defines an outlet chamber. The outlet chamber is configured to receive cooling fluid discharged from the outlet ends of the plurality of tube. A supply conduit supplies the cooling fluid to the inlet header. The supply conduit includes a conduit portion extending through the outlet header.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Applicant: Hussmann Corporation
    Inventor: Steve L. Fritz
  • Patent number: 8590337
    Abstract: A condenser assembly for an appliance is provided. The condenser assembly can include a horizontally extending condenser coil assembly that has a plurality of supporting connectors that are arranged at an angle to the flow direction of cooling air. Cooling air is drawn through the refrigerator and across a length of the condenser coil by an air mover. Additionally, a baffle works in conjunction with the air mover to direct cooling air through the condenser coil and connectors.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 26, 2013
    Assignee: Eletrolux Home Products, Inc.
    Inventor: Juan Antonio Contreras Lafaire
  • Patent number: 8578733
    Abstract: A turbo-compressor-condenser-expander arrangement, including heat-transferring blades mounted on or surrounding individual conduits. The open framework rotates in free air to promote heat exchange. A first hub, a first set of radial conduits, axial conduits, a second set of radial conduits, and a second hub are included; a motor rotates a central axis of the turbo-compressor-condenser-expander.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: November 12, 2013
    Assignee: Appollo Wind Technologies LLC
    Inventors: Benoit Roisin, Andrew S. Geffken, Ian E. Graves
  • Patent number: 8567205
    Abstract: An inlet air flow guide for a condensing unit of an air cooled direct expansion (ACDX) air conditioning unit. The flow guide has a panel having at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side. A condensing unit of an ACDX air conditioning unit has a refrigerant cooling coil disposed in an opening, and the inlet air flow guide defines a plenum to provide an air flow passage to the opening from one side thereof. According to a method, the inlet air flow guide is installed onto the condensing unit of an ACDX air conditioning unit, wherein a panel of the flow guide has at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: October 29, 2013
    Inventor: David L. Hatton
  • Patent number: 8484990
    Abstract: A method is provided for operating a refrigerant vapor compression system, for example an air-cooled chiller or air-cooled condensing unit, at optimal energy efficiency rating. The method includes the steps of: determining the instantaneous values of a plurality of selected operating parameters of the system's refrigeration unit, calculating a desired control parameter set point indicative of an optimal energy efficiency rating for the refrigeration unit as a function of the selected operating parameters, sensing the instantaneous value of the control parameter, comparing the sensed instantaneous value of the control parameter to the calculated control parameter set point, and adjusting the operating speed of the condenser fans associated with the air-cooled condenser of the refrigeration unit in response to that comparison.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: July 16, 2013
    Assignee: Carrier Corporation
    Inventors: Joseph Ballet, Michel Karol Grabon
  • Publication number: 20130145790
    Abstract: A heating/cooling device (1) is proposed for vehicles, in particular motor vehicles, with a compressor (3), a refrigerant circuit (5), a gas cooler (7), an evaporator (9), and with an expansion valve (37) arranged between the gas cooler (7) and evaporator (9) in the refrigerant circuit (5). The heating/cooling device (1) is distinguished in that the gas cooler (7) or the evaporator (9) is coupled with a liquid coolant circuit (13, 23) which cooperates with an interior heat exchanger (19) or an external air heat exchanger (27), or that the gas cooler (7) and the evaporator (9) are each coupled with an its own liquid coolant circuit (13, 23), wherein one of the liquid coolant circuits (13, 23) cooperates with the interior heat exchanger (19) and the other liquid coolant circuit (23, 13) cooperates with the external air heat exchanger (27).
    Type: Application
    Filed: August 16, 2011
    Publication date: June 13, 2013
    Inventors: Tilo Schäfer, Stefan Schüssler, Willi Parsch
  • Publication number: 20130145789
    Abstract: A condenser apparatus may include a first heat-radiating portion formed by stacking a plurality of plates, fluid-connected to the radiator to circulate the coolant, and fluid-connected to the compressor to circulate the refrigerant supplied from the compressor so as to condense the refrigerant through heat-exchange with the coolant and the refrigerant, a second heat-radiating portion integrally formed at a lower portion of the first heat-radiating portion and fluid-connected thereto, and a receiver-drier portion integrally formed at each one end of the first and second heat-radiating portions and fluid-connected to the first heat-radiating portion to receive a condensed refrigerant from the first heat-radiating portion and performing gas-liquid separation and moisture removal of the refrigerant, wherein the first heat-radiating portion may be provided with a gas-liquid separating portion which separates the refrigerant into gas refrigerant and liquid refrigerant.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 13, 2013
    Applicant: Hyundai Motor Company
    Inventor: Jae Yeon KIM
  • Publication number: 20130146271
    Abstract: The proposal is for a heating/cooling device for vehicles, in particular motor vehicles with electric drive, having a refrigerant circuit, which comprises a compressor (3), a gas cooler (5), an evaporator (7) and an expansion valve arranged between the gas cooler (5) and the evaporator (7). The heating/cooling device is characterized in that the gas cooler (5) interacts with a first liquid coolant circuit (9), and the evaporator (7) interacts with a second liquid coolant circuit (11), wherein an interior heat exchanger (17) can be assigned to the first or the second liquid coolant circuit (9, 11), and wherein an external-air heat exchanger (19) can be assigned to the first or the second liquid coolant circuit (9, 11).
    Type: Application
    Filed: August 16, 2011
    Publication date: June 13, 2013
    Inventors: Tilo Schäfer, Stefan Schüssler, Uwe Becker
  • Publication number: 20130118200
    Abstract: The invention relates to a heating, ventilation and/or air conditioning loop (8) inside of which flows a coolant, and including a compressor (9), an outer heat exchanger (15), a restitution heat exchanger (12, 32) and a first expansion member (17) provided downstream from the restitution heat exchanger (12, 32) in the flow direction (11) of the coolant in the heating, ventilation and/or air conditioning loop (8). The heating, ventilation and/or air conditioning loop (8) includes means (20) for bypassing the inner heat exchanger (12) and the first expansion member (17). The present invention also relates to a heating, ventilation and/or air conditioning equipment (1) including such a heating, ventilation and/or air conditioning loop (8).
    Type: Application
    Filed: March 21, 2011
    Publication date: May 16, 2013
    Inventors: Bernard Aoun, Regis Beauvis, Muriel Porto, Maurizio Alessio
  • Patent number: 8408022
    Abstract: An exemplary system includes a first heat exchanger immediately after the compressor that provides direct, conduction-based cooling with condensate recovered from the evaporator. A second heat exchanger cools the forced air that passes over the condenser by evaporating recovered condensate, rainwater, and/or city water into the air as it passes through a breathable water-retaining medium. Finally, a third heat exchanger is described that utilizes recovered condensate, rainwater, and/or city water within an insulated enclosure to obtain additional cooling before the condensed refrigerant enters the expansion valve. Various alternative embodiments are described that include variations of each of these heat exchangers. Additionally, several alternative placements of the heat exchangers are disclosed.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: April 2, 2013
    Inventor: Harold E. Stockton, Jr.
  • Patent number: 8291721
    Abstract: A transport refrigeration system having a structural framework supporting a refrigeration unit including a condenser heat exchanger supported in an upper region of the framework and an engine and an electric generator powered by the engine supported by the framework in an engine compartment in a lower region of the framework, includes a pair of vertically disposed condenser fan/motor assemblies disposed aft of the condenser heat exchanger in side-by-side relationship and above the engine compartment; and a flow partition extending vertically between the pair of condenser fan/motor assemblies.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: October 23, 2012
    Assignee: Carrier Corporation
    Inventors: Richie C. Stauter, Peter R. Bushnell, Stephen Stopyra, Donald B. Hotaling, Jason A. Gough
  • Patent number: 8286445
    Abstract: A water-cooled air conditioning system includes an indoor unit having a first heat exchanger where air and refrigerant are heat-exchanged with each other, an outdoor unit having a second heat exchanger where water and the refrigerant are heat-exchanged with each other, a cooling tower for cooling the water directed to the second heat exchanger, a discharge duct for guiding the air conditioned in the indoor unit to an indoor space for an air conditioning, and an intake duct for guiding the air in the indoor space to the indoor unit. The second heat exchanger is a plate type heat exchanger having a space that is divided into a plurality of sections along which the refrigerant and the cooling water separately flow.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: October 16, 2012
    Assignee: LG Electronics Inc.
    Inventors: In Woong Park, Ja Hyung Koo, Seung Cheol Baek, Soo Yeon Shin, Dong Hyuk Lee
  • Patent number: 8281614
    Abstract: A water-cooled air conditioner is provided, and includes an indoor unit, an outdoor unit, a cooling tower, and a boiler. The indoor unit cools or heats a space, and includes a first heat exchanger that performs heat exchange between air and refrigerant. The outdoor unit is installed separately from the indoor unit and includes a second heat exchanger that performs heat exchange between water and refrigerant. The cooling tower is connected to the outdoor unit, and cools water flowing to the second heat exchanger. The boiler is connected to the outdoor unit, and increases a temperature of the water flowing to the second heat exchanger. The second heat exchanger is formed with a plurality of thin plates separated from one another by predetermined gaps through which refrigerant and water flow. The second heat exchanger includes an anti-freezing device that prevents freezing of water within the second heat exchanger.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: October 9, 2012
    Assignee: LG Electronics Inc.
    Inventors: Ja Hyung Koo, In Woong Park, Seung Cheol Baek, Soo Yeon Shin, Dong Hyuk Lee
  • Patent number: 8261563
    Abstract: An apparatus provides a high efficiency for refrigerator operation. The inclusion of a separate external evaporator and condenser that draws heat away from the common refrigerator condenser allows an increase in the intensity of the cooling process of the cooling agent, thereby diminishing electrical consumption, and decreasing the size and noise of the condenser. This is achieved by structuring the refrigerator condenser with the one tube for the cooling agent of the common refrigerator and another volume for evaporating the cooling substance of the external evaporator and condenser. Moreover, external system of natural cooling has a condenser that is located in the open air and connected to the evaporator with the help of vapor lines and condensed vapor lines.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: September 11, 2012
    Inventors: Lev Khrustalev, Alex Mindich
  • Patent number: 8220281
    Abstract: An inlet air flow guide for a condensing unit of an air cooled direct expansion (ACDX) air conditioning unit. The flow guide has a panel having at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side. A condensing unit of an ACDX air conditioning unit has a refrigerant cooling coil disposed in an opening, and the inlet air flow guide defines a plenum to provide an air flow passage to the opening from one side thereof. According to a method, the inlet air flow guide is installed onto the condensing unit of an ACDX air conditioning unit, wherein a panel of the flow guide has at least a portion spaced from a surface of the condensing unit to define a plenum for cooling air to enter the condensing unit from one side.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: July 17, 2012
    Inventor: David L. Hatton
  • Publication number: 20120174605
    Abstract: A refrigerant vapor compression system includes a compressor having a suction port and a discharge port, an air-cooled heat exchanger operatively coupled to the discharge port, a liquid-cooled heat exchanger operatively coupled to the air-cooled heat exchanger, a coolant pump operatively coupled to a liquid coolant inlet conduit of the liquid-cooled heat exchanger, an evaporator heat exchanger unit operatively coupled to the liquid-cooled heat exchanger and the suction port, a coolant pump operatively coupled to the liquid coolant inlet conduit for pumping a liquid coolant, and a controller operatively associated with the liquid coolant inlet conduit for controlling the flow of liquid coolant into the liquid-cooled heat exchanger. In one embodiment, the liquid-cooled heat exchanger comprises a low-profile enclosure defining an interior volume.
    Type: Application
    Filed: September 23, 2010
    Publication date: July 12, 2012
    Applicant: CARRIER CORPORATION
    Inventors: Hans-Joachim Huff, Zvonko Asprovski
  • Publication number: 20120055178
    Abstract: It is aimed to provide a heat pump type hot-water supply outdoor apparatus that can control a temperature of a compressor shell, according to a water temperature of a water circuit and a temperature of the compressor.
    Type: Application
    Filed: May 18, 2009
    Publication date: March 8, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kengo Takahashi, Ryo Oya, Kazuki Okada, Takahiro Ushijima, Hirokazu Minamisako, Shinichi Uchino
  • Publication number: 20110219786
    Abstract: An aircraft cooling system includes a refrigerant cycle including a first heat exchanger, a second heat exchanger, and a compressor. A component of the aircraft is in thermal communication with the first heat exchanger. A heat sink fluid passes through the second heat exchanger to absorb heat from the refrigerant cycle. A hydraulic motor is mechanically connected with the compressor and powered by the heat sink fluid, which is circulated by a pump.
    Type: Application
    Filed: March 11, 2010
    Publication date: September 15, 2011
    Inventors: Michael J. Andres, Kris H. Campbell
  • Patent number: 7987685
    Abstract: A refrigerant cycle device includes a branch portion for branching a flow of refrigerant discharged from a compressor, a first radiator for radiating one high-temperature and high-pressure refrigerant branched at the branch portion, an ejector including a nozzle portion for decompressing refrigerant on a downstream side of the first radiator, a second radiator for radiating the other high-temperature and high-pressure refrigerant branched at the branch portion, a throttle device for decompressing refrigerant on a downstream side of the second radiator, and a suction side evaporator for evaporating refrigerant downstream of the throttle device and for allowing the refrigerant to flow to an upstream side of a refrigerant suction port of the ejector. Furthermore, the first and second radiators are disposed downstream of the branch portion such that a heat radiation amount of refrigerant in the first radiator is smaller than that in the second radiator.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: August 2, 2011
    Assignee: Denso Corporation
    Inventors: Hiroshi Oshitani, Hirotsugu Takeuchi, Yoshiaki Takano, Mika Gocho
  • Patent number: 7980094
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include dissimilar tube spacing configurations. The heat exchangers include multiple sets of multichannel tubes in fluid communication with each other. One set of multichannel tubes contains a plurality of tubes spaced apart at one spacing while the another set of multichannel tubes contains a plurality of tubes spaced apart at a different spacing. The different spacing between the multichannel tubes allows each set of tubes to be configured to the properties of the refrigerant flowing within the tubes.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: July 19, 2011
    Assignee: Johnson Controls Technology Company
    Inventors: Mustafa K. Yanik, Jeffrey N. Nichols, William L. Kopko, Jose Ruel Yalung de la Cruz
  • Patent number: 7913512
    Abstract: A heat exchanger comprises a first tube having a first fin of a first predetermined height extending outward therefrom. A second tube is vertically spaced above the first tube. The second tube has a second fin of a second predetermined height extending outward therefrom. A fan is positioned to force ambient air across the second tube and then across the first tube to heat a fluid flowing therethrough. A method of heating a fluid comprises sequentially flowing the fluid upward through a plurality of vertically spaced rows of substantially horizontal tubes, and forcing air downward over the plurality of tubes to heat the fluid.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 29, 2011
    Assignee: Wood Group Advanced Parts Manufacture, AG
    Inventors: Ned Phillip Baudat, Frank Patrick Ross, Randy Michael Sharp
  • Publication number: 20110005254
    Abstract: This invention provides a new type of environmental protection and energy saving heater, which including heater bracket, hot roast cell, and refrigeration cell that connected with hot roast cell. The hot roast cell including compressor and condenser, a heat exchanger is set up between compressor and condenser. And regarding the refrigeration cell, which including expansion valve, evaporator, and the four-way valve; the condenser connected with one end of expansion valve, the other end of it connected with one end of evaporator through the four-way valve, and the other end of evaporator connected with compressor. The hot roast cell and refrigeration cell located in bracket. Compared with habitually using, this can recycle the heat of water chiller, and transfer the low-quality heat into high-quality heat energy.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Inventor: Guang Shun LIN
  • Patent number: 7854141
    Abstract: A self-contained air-conditioning unit is modified to effect conservation of energy during operation of the unit. Refrigerant is moved along a refrigerant circuit for circulation through a compressor, a condenser and an evaporator within a housing which includes a base. The evaporator is raised above the base a distance sufficient to enable collection of condensate from the evaporator and transfer of the collected condensate by gravity to a condensate reservoir tray located adjacent the base. A heat exchange conduit is inserted into the refrigerant circuit, between the compressor and the condenser, and is placed in the condensate reservoir tray so as to be immersed in the condensate transferred to the condensate reservoir tray for enabling transfer of heat from the heat exchange conduit to condensate in the condensate reservoir tray during operation of the air-conditioning unit, thereby reducing the amount of energy needed to operate the unit.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 21, 2010
    Inventor: Joseph G. Breen
  • Publication number: 20100307176
    Abstract: An HVAC system for use in a vehicle. The HVAC system comprises an evaporator, a refrigerant compressor that receives a refrigerant from the evaporator and compresses the refrigerant, a condenser that receives the refrigerant from the compressor and has fins with air flowing through the fins to remove heat from a refrigerant flowing through the condenser, and an expansion device that receives the refrigerant from the condenser and directs the refrigerant to the evaporator. The HVAC system also comprises a water tank that receives and stores water, a water spray pump that receives water from the water tank, and a nozzle that receives water from the water spray pump and is located adjacent to the condenser, with the nozzle selectively spraying water on the fins of the condenser.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 9, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Robert E. Zeweke, Brian V. Castillo, Gregory A. Major, Roy D. Rodgers, Paul R. Nahra, George M. Claypole
  • Publication number: 20100293992
    Abstract: In the condenser provided with two of the degassing chambers separated by a cooling fluid, communication between the degassing chambers is prevented even if a pressure difference is increased between the degassing chambers.
    Type: Application
    Filed: November 20, 2008
    Publication date: November 25, 2010
    Inventors: Ryo Fujisawa, Kazuto Okada, Masatake Toshima, Yoshihiro Nakayama, Koichiro Iizuka, Satoshi Ide, Kunihiko Suto, Kazutaka Kurashige, Ichirou Sakuraba, Daisuke Hayashi, Shinji Shato, Masaki Ikeuchi, Hans Madsboll, Christian Svarregaard-Jensen
  • Patent number: 7836714
    Abstract: A fluid compression system includes a compressor that is operable to produce a flow of compressed fluid and a coolant compressor that is operable to produce a flow of coolant. A base includes at least one polymer wall that at least partially defines a reservoir space. The base supports the compressor and the coolant compressor. A first tube is at least partially positioned within the reservoir space and is in fluid communication with the compressor to receive the flow of compressed air and a second tube is at least partially positioned within the reservoir space and is in fluid communication with the coolant compressor to receive the flow of coolant.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: November 23, 2010
    Assignee: Ingersoll-Rand Company
    Inventors: David G. Carlson, Kurt A. Dimos
  • Patent number: 7836725
    Abstract: In a condenser for an air conditioning system, in particular for motor vehicles, comprising a condensing section (1b) and a supercooling section (1c) which is arranged above the condensing section, comprising an approximately tubular modulator (2) which is divided by a separating wall (2b) into a lower section (2c), which is connected to the condensing section (1b), and an upper section (2d), which is connected to the supercooling section (1c), comprising an ascending pipe (4) between the lower and upper sections of the modulator, and comprising a container (7) for desiccant in the lower section (2c) of the modulator, the modulator (2) is provided at the upper side with a plug (6), it being possible for the separating wall (2b) with the desiccant container to be removed upwards out of the modulator once the plug has been detached from the interchangeable unit.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: November 23, 2010
    Assignee: Denso Corporation
    Inventors: Dirk Lautner, Stefan Herwig, Hiroyasu Shimanuki
  • Patent number: 7818976
    Abstract: A refrigeration device comprising a body, which has lateral walls and a rear wall and a condenser that is mounted on the exterior of the rear wall of the body. Said condenser extends over at least one of the edge zones of the exterior, behind which there is a respective lateral wall, when viewed from the direction of the depth of the body and a central zone of the exterior, behind which the interior of the body lies when viewed from the depth direction, is not covered by the condenser.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: October 26, 2010
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventor: Wolfgang Nuiding
  • Patent number: 7805953
    Abstract: A method of transferring heat is accomplished by providing a heat exchanger unit that is at least partially air cooled. The heat exchanger unit has an evaporator, condenser, compressor and a fan for forcing air over an exteriorly located heat exchange surface of the condenser. A fiberglass filter element is positioned adjacent to the heat exchange surface of the condenser for capturing at least one of grease, debris and other contaminants that are not entrained within any liquid cooling fluid that would otherwise contact the heat exchange surface. The filter element is allowed to capture the at least one of grease, debris and other contaminants prior to contact with the heat exchange surface of the condenser.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: October 5, 2010
    Inventor: Tim Allan Nygaard Jensen
  • Patent number: 7748227
    Abstract: To provide a compact and well serviceable heat pump water boiler. The heat pump water boiler is constituted to have a body unit (1) by integrating: a refrigerant cycle, in which a compressor (2), a radiator (3), a radiator (4), pressure reducing means (5) and an evaporator (6) are connected; a blower fan (8) for blowing wind to the evaporator (6); a hot-water supplying water-refrigerant heat exchanger (9) acting integrally with the radiator (3) for converting water into hot water; a hot-water supplying circulation water pump (15) for feeding water to the hot-water supplying water-refrigerant heat exchanger (9); a bath warming/heating water-refrigerant heat exchanger (17) acting integrally with the radiator (4) for further raising the temperature of the hot water of the bath tab; a bath water circulating pump (18) for circulating the hot water of the bath; and hot-water reserving tank (10) for reserving the hot water.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: July 6, 2010
    Assignee: Panasonic Corporation
    Inventors: Toshikatsu Fukunaga, Kazuhito Nakatani
  • Patent number: 7716943
    Abstract: A heat pump system including a first heating/cooling exchange loop including a refrigerant to water heat exchanger to produce a first output. A second heating/cooling exchange loop includes a refrigerant to forced air heat exchanger to produce a second output. A compressor is fluidly coupled to the first heating/cooling exchange loop and the second heating/cooling exchange loop. A controller is connected to control the first output and the second output and to transmit control signals to the at least one compressor, for balancing the first output and the second output responsive to a structural heating/cooling load.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: May 18, 2010
    Assignee: Electro Industries, Inc.
    Inventor: William J. Seefeldt
  • Publication number: 20100071390
    Abstract: The subject invention pertains to a method and apparatus for cooling. In a specific embodiment, the subject invention relates to a lightweight, compact, reliable, and efficient cooling system. The subject system can provide heat stress relief to individuals operating under, for example, hazardous conditions, or in elevated temperatures, while wearing protective clothing. The subject invention also relates to a condenser for transferring heat from a refrigerant to an external fluid in thermal contact with the condenser. The subject condenser can have a heat transfer surface and can be designed for an external fluid, such as air, to flow across the heat transfer surface and allow the transfer of heat from heat transfer surface to the external fluid. In a specific embodiment, the flow of the external fluid is parallel to the heat transfer surface.
    Type: Application
    Filed: June 30, 2009
    Publication date: March 25, 2010
    Applicant: Rini Technologies, Inc.
    Inventors: Daniel P. Rini, Louis Chow, H. Randolph Anderson, Jayanta Sankar Kapat, Bradley Carman, Brian Gulliver, Jose Mauricio Recio
  • Patent number: 7677057
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include dissimilar tube spacing configurations. The heat exchangers include multiple sets of multichannel tubes in fluid communication with each other. One set of multichannel tubes contains a plurality of tubes spaced apart at one spacing while the another set of multichannel tubes contains a plurality of tubes spaced apart at a different spacing. The different spacing between the multichannel tubes allows each set of tubes to be configured to the properties of the refrigerant flowing within the tubes.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: March 16, 2010
    Assignee: Johnson Controls Technology Company
    Inventors: Mustafa K. Yanik, Jeffrey N. Nichols, William L. Kopko, Jose Ruel Yalung de la Cruz
  • Patent number: 7673463
    Abstract: A refrigerator includes a housing defining at least one chamber and a condenser system in which a refrigerant flows. The condenser system includes a condenser, a switching device, and a hot gas loop in flow communication with one another. The condenser system is configured to be in heat transfer relation with the chamber and the switching device is configured to allow the refrigerant to bypass the hot gas loop when a thermal demand of the refrigerator is met.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: March 9, 2010
    Assignee: General Electric Company
    Inventors: Jeffery A. Tupis, Martin Severance
  • Patent number: 7658082
    Abstract: A heat transfer system includes a water line for carrying water having a first predetermined flow direction and a refrigerant line for carrying a refrigerant and having a second predetermined flow direction opposite the first predetermined flow direction. The heat transfer system includes a refrigerant evaporator, a vapor compressor, a condenser, and an expansion device. Refrigerant is passed through the refrigerant evaporator as a liquid and is warmed to a cooled gas. The refrigerant is heated to a superheated gas in the vapor compressor, and cooled to a warm liquid in the condenser. The refrigerant is cooled to a bi-phase liquid in the expansion device and is then passed to the refrigerant evaporator. Water enters the refrigerant condenser and heat is exchanged between the refrigerant and the water to warm the water to a predetermined water temperature. The water exits the refrigerant condenser and is passed to the water storage member at a predetermined temperature.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: February 9, 2010
    Assignee: Cotherm of America Corporation
    Inventor: Tadeusz Frank Jagusztyn
  • Patent number: 7600394
    Abstract: A condensation system is disclosed where a multi-component fluid is condensed to form a condensate, a portion of which is sub-cooled and mixed with non-condensable vapor in the system to reduce the accumulation of non-condensable vapor and to improve the stability and efficiency of the condensation system.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: October 13, 2009
    Assignee: Kalex, LLC
    Inventor: Alexander I. Kalina
  • Publication number: 20090211293
    Abstract: An air conditioning system for circulating a refrigerant includes a condenser having a vapor inlet for condensing the refrigerant into a high-pressure liquid having a first predetermined temperature. A heat exchanger including an exhaust channel directs air therethrough. The heat exchanger further includes a refrigerant inlet in fluid communication with a refrigerant outlet for receiving a high-pressure liquid and for delivering the high-pressure liquid therethrough. Furthermore, a heat mass exchanger outputs wet working air having a second predetermined temperature. The heat exchanger is in fluid communication with the heat mass exchanger for receiving the working air having a temperature less than the high-pressure liquid. The working air flows through the exhaust channel and over the high-pressure liquid to transfer heat from the high-pressure liquid to the working air for reducing the temperature of the high-pressure liquid.
    Type: Application
    Filed: February 25, 2008
    Publication date: August 27, 2009
    Inventors: Edward Wolfe, IV, Ilya Reyzin, Lindsey Lee Leitzel
  • Publication number: 20090173088
    Abstract: A refrigeration system includes an evaporator, a compressor compressing a refrigerant coming out of the evaporator, a condensing unit which includes a finned tube guiding the refrigerant from the compressor back to the evaporator; and an energy saving arrangement. The energy saving arrangement includes a water-cooling device frequently introducing a predetermined amount of water to a surface of the finned tube to water-cool the refrigerant within the finned tube for enhancing a cooling efficiency of the condensing unit while being energy efficient. The energy saving arrangement further includes a metering device for controllably pumping the refrigerant from the condensing unit to the evaporator especially when a pressure inside the condensing unit is lower than a threshold pressure.
    Type: Application
    Filed: May 2, 2008
    Publication date: July 9, 2009
    Inventors: Kuojui Su, Ling Ju Su
  • Publication number: 20090071189
    Abstract: A condenser for a motor vehicle air-conditioning circuit includes a multitude of stacked main-section plates assembled to delimit first flow channels for a refrigerating fluid which alternate with second flow channels for a cooling fluid. The condenser includes at least two passes over the refrigerating fluid. The condenser also includes at least one condenser inlet and one condenser outlet for refrigerating fluid. The condenser also includes an inlet pass over the refrigerating fluid communicating with the condenser inlet and an outlet pass communicating with the condenser outlet. The cross section of the passes diminishes from the inlet pass towards the outlet pass.
    Type: Application
    Filed: November 20, 2008
    Publication date: March 19, 2009
    Inventors: Carlos Martins, Jerome Genoist, Jacques Hoffnung
  • Patent number: 7469554
    Abstract: The invention concerns a condenser consisting of stacked plates (2) provided each with a raised peripheral edge (3) in sealed assembly to define flow channels between the plates for a refrigerating fluid (F1) and a cooling fluid (F2). The plates comprise communicating passageways (124) for the passage of the refrigerating fluid and the cooling fluid from one flow channel to the other. Annular ducts (122) are provided opposite the communicating passageways to prevent the fluids from being mixed. A bottle (100) is interposed between a cooling section (94) and sub-cooling section (96). The invention is applicable to motor vehicles.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 30, 2008
    Assignee: Valeo Systeme Thermiques
    Inventors: Carlos Martins, Jerome Genoist, Jacques Hoffnung