Evaporator, E.g., Heat Exchanger Patents (Class 62/515)
  • Patent number: 8099978
    Abstract: An evaporator unit includes a first heat exchanger configured to perform heat exchange between refrigerant flowing thereinto from a refrigerant inlet and air, a bypass passage through which the refrigerant flowing from the refrigerant inlet flows while bypassing the first heat exchanger, a second heat exchanger configured to perform heat exchange between air and mixed refrigerant in which the refrigerant after passing through the first heat exchanger and the refrigerant having passed through the bypass passage are mixed, and a flow amount adjustment portion configured to adjust a flow amount of the refrigerant flowing through the first heat exchanger and a flow amount of the refrigerant flowing through the bypass passage. Accordingly, the first heat exchanger and the second heat exchanger can be configured to have respectively portions in which a dryness of the refrigerant is in a range between 0.6 and 0.9.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: January 24, 2012
    Assignee: Denso Corporation
    Inventors: Thuya Aung, Tomohiko Nakamura, Yoshiyuki Okamoto, Hideaki Sato, Nobuharu Kakehashi
  • Patent number: 8082749
    Abstract: An air conditioner having a heat-source side unit including a compressor and a heat-source side heat exchanger, plural use-side units each having a use-side heat exchanger and an inter-unit pipe for connecting the heat-source side unit to the plural use-side units, including an auxiliary heat source unit having a water-refrigerant heat exchanger for heat-exchanging refrigerant with water, a refrigerant side of the water-refrigerant heat exchanger being selectively connectable to one of the high-pressure gas pipe and the low-pressure gas pile through one of a first change-over valve and a second change-over valve, and also connected to a liquid pipe through an expansion valve, and a controller for controlling the auxiliary heat source unit so that the water-refrigerant heat exchanger of the auxiliary heat source unit functions as an evaporator with a water side thereof serving as a heat source when some of the user-side units are under heating operation.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 27, 2011
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takashi Sekine, Kenji Kobayashi, Naoki Sakamoto
  • Publication number: 20110296851
    Abstract: A vaporizer for a cooling circuit, particularly for a motor vehicle, is provided that includes a vaporization region, wherein a coolant flowing through the vaporization region takes up heat from an outside region, wherein the vaporization region is downstream of a first expansion element on the inlet side in the direction of flow of the coolant, wherein an exchanger member is provided between the vaporization region and the first expansion element, and wherein heat can be transferred from the coolant upstream of the vaporization region to the coolant downstream of the vaporization region.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 8, 2011
    Inventors: Gottfried DUERR, Guenther Feuerecker, Stefan Hirsch, Tobias Isermeyer, Caroline Schmid, Christoph Walter, Achim Wiebelt
  • Publication number: 20110271711
    Abstract: A water heat exchanger exchanges heat between a refrigerant and water, and includes a pair of flat refrigerant pipes and a flat water pipe. Each flat refrigerant pipe has a plurality of refrigerant passageway holes. The flat water pipe has at least one water passageway hole. The number of water passageway holes is fewer than the number of refrigerant passageway holes of the flat refrigerant pipes. Long side surfaces of the flat water pipe and a long side surface of each of the pair of flat refrigerant pipes are in tight contact with each other as viewed in cross section. The flat water pipe is interposed by the pair of flat refrigerant pipes.
    Type: Application
    Filed: January 19, 2010
    Publication date: November 10, 2011
    Inventors: Kaori Yoshida, Mitsuharu Numata, Hyunyoung Kim
  • Publication number: 20110271710
    Abstract: The invention relates to a connection device for an internal heat exchanger (14) having a connection block (21) comprising a first and a second through hole (24, 25), wherein an inlet opening (26) of the first through hole (24) can be connected on the high pressure side to a connection of the internal heat exchanger (14), and an outlet opening (27) of the first through hole (24) to an inlet of an evaporator (16), and an inlet opening (28) of the second through hole (25) can be connected to an outlet of the evaporator (16) and an outlet opening (28) of the second through hole (25) on the low pressure side to a connection of the internal heat exchanger (14), wherein a narrowing of the cross section (31) of the first through hole (24) is formed in the connection block (22) between the inlet opening (26) and outlet opening (27) and acts as a throttle point.
    Type: Application
    Filed: September 23, 2009
    Publication date: November 10, 2011
    Inventors: Joan Aguilar, Karl-Heinz Schlegel
  • Patent number: 8037929
    Abstract: An evaporator includes plural refrigerant flow members and corrugate fins disposed in corresponding air-passing clearances between the adjacent refrigerant flow members. Each refrigerant flow member includes plural flat tubes arranged in the front-rear direction. Each corrugate fin extends across all the flat tubes. A vertically extending drain portion is formed between the flat tubes adjacent each other in the front-rear direction. At each connection portion of the corrugate fin, a louver group including plural louvers inclining downward toward the front is provided to correspond to a front portion of each flat tube. At least the front-end louver of the louver group provided to correspond to the front portion of each flat tube except for the flat tube at the front end is located in the drain portion.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: October 18, 2011
    Assignee: Showa Denko K.K.
    Inventor: Naohisa Higashiyama
  • Patent number: 8037699
    Abstract: When forming fins and heat transfer tubes by aluminum material, a pressure loss in the tube does not increase and a heat exchanger can be provided having heat transfer performance equal to or higher than a copper tube. The heat exchanger includes fins made of an aluminum material having a low deformation resistance and heat transfer tubes made of an aluminum material having a higher deformation resistance than the aluminum material forming the fins, and on whose internal surface the groove is provided to penetrate the fin to be fixed. It is also arranged that the tube axial direction (a) of the inner surface of the heat transfer tube and the direction (b) of the groove provided on the internal surface of the heat transfer tube are substantially parallel. In this case, the groove direction (b) forms an angle of 0 degrees to 2 degrees with respect to the tube axial direction (a) of the inner surface of the heat transfer tube. The depth of the groove of the heat transfer tube after tube expansion is 0.2 mm to 0.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: October 18, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Sangmu Lee, Akira Ishibashi, Takuya Matsuda
  • Publication number: 20110232326
    Abstract: An evaporator for a refrigerator, in particular a domestic refrigerator, includes at least one refrigerant channel and at least one plate. The plate has a receptacle, arranged in a space defined by the refrigerant channel, for positioning a tube. The receptacle is formed by at least one projection, which forms a longitudinal guide of the tube. The projection is formed on the at least one plate and defines a channel having a channel wall upon which the tube bears at least partially in a longitudinal direction. The tube is, for example, a protective tube for a temperature sensor.
    Type: Application
    Filed: November 13, 2009
    Publication date: September 29, 2011
    Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBH
    Inventors: Berthold Pflomm, Bernd Schlögel
  • Publication number: 20110226005
    Abstract: Provided are a distributor having a distribution tube having an inner surface formed as a curved surface, a plurality of distribution holes which are formed in a lower semicircular region of the distribution tube with respect to a horizontal line of the distribution tube and are arranged to be symmetrical about a vertical line of the distribution tube and a connection hole provided in the distribution tube so that the distribution tube is connected to a connection tube, an evaporator and a refrigerating machine with the distributor. A perforated plate may be fixed to an inside of the distribution tube so as to block a flow path of a cooling medium.
    Type: Application
    Filed: November 23, 2010
    Publication date: September 22, 2011
    Inventor: Hyung Jun Lee
  • Patent number: 7992401
    Abstract: An evaporator includes a plurality of flat heat exchange tubes arranged in a left-right direction at a spacing with the widthwise direction thereof pointing forward or rearward, and fins arranged between respective adjacent pairs of heat exchange tubes. The fins have at least front edges thereof projected forwardly outward beyond the heat exchange tubes. Assuming that the amount of projection of the fins beyond the heat exchange tubes is X mm and that the heat exchange tubes are Y mm in thickness in the left-right direction, i.e., in height, X and Y have the relationship of 0.11Y?X?1.0Y. The surfaces of the fins can be drained of condensation water efficiently.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 9, 2011
    Assignee: Showa Denko K.K.
    Inventor: Naohisa Higashiyama
  • Publication number: 20110174015
    Abstract: An evaporator unit includes an ejector, an evaporator and a refrigerant pipe to connect a refrigerant outlet of the evaporator and a suction port of the ejector. The suction port draws refrigerant using high-speed refrigerant flow injected from a nozzle of the ejector. The ejector, the evaporator and the refrigerant pipe are integrated with each other into an integrated unit. The refrigerant outlet of the evaporator is located upper than the suction port of the ejector. The refrigerant pipe has a shape in a manner that refrigerant flows downward from the refrigerant outlet of the evaporator to the suction port of the ejector.
    Type: Application
    Filed: January 17, 2011
    Publication date: July 21, 2011
    Applicant: DENSO CORPORATION
    Inventors: Youhei Nagano, Haruyuki Nishijima, Yoshiaki Takano
  • Patent number: 7981254
    Abstract: In a heat pump system including a water purifier and an evaporator for evaporating feed-water to produce steam, water used for spray cooling is effectively used and productivity of purified water used for the spray cooling is increased. Discharged water from the water purifier is supplied to the evaporator when water used for spray cooling is produced by use of the water purifier. Otherwise, drain of the evaporator having higher temperature is supplied to the water purifier by using such a fact that in a reverse osmosis membrane type water purifier, the higher the temperature of feed-water is, the higher the purified water productivity becomes.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: July 19, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Tadaharu Kishibe, Susumu Nakano, Takanori Shibata
  • Publication number: 20110120181
    Abstract: An evaporator for use in a refrigeration system includes a shell and a tube bundle, the tube bundle having a plurality of tubes extending substantially horizontally in the shell. A hood is disposed over and laterally surrounds substantially all of the plurality of tubes of the tube bundle. A distributor is positioned between the hood and the tube bundle. The hood is asymmetrically disposed within the evaporator.
    Type: Application
    Filed: January 19, 2011
    Publication date: May 26, 2011
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Paul DE LARMINAT, Luc LE COINTE, Satheesh KULANKARA
  • Publication number: 20110113823
    Abstract: A refrigerant evaporator (1), in which one of a plurality of blocks is a U-turn block portion (15), includes a plurality of refrigerant-distribution holes (4M, 5M), which communicate between first tank portions (6, 8) and second tank portions (7, 9), provided in the U-turn block portion (15) and in partition walls (4C, 5C) therein that partition the first tank portions (6, 8) and the second tank portions (7, 9) of top and bottom tanks (4, 5). For the refrigerant-distribution holes (4M, 5M), assuming the distance between the plurality of holes as b, the hole length in the hole-row direction as a, and the thickness of the partition wall as t, a/b is set to a/b??0.0697×t2+0.3274×t+0.4594, where t=1 to 2 mm.
    Type: Application
    Filed: October 14, 2009
    Publication date: May 19, 2011
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasunobu Joboji, Jun Ito, Takamitsu Himeno, Hitoshi Tamaki
  • Publication number: 20110113824
    Abstract: The present invention relates to an evaporator (1) comprising a sheet (2) and a microchannel tube (3) used in the cooling cycle, having channels (K) parallel to each other wherein the refrigerant flows.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 19, 2011
    Inventor: Husnu Kerpicci
  • Publication number: 20110107779
    Abstract: A frost detecting apparatus including a first electrode to generate an electric field in a frost detection region, a second electrode to prevent the electric field from leaking into a frost non-detection region, an insulator arranged between the first electrode and the second electrode, to insulate the first electrode, and a shield arranged around an exposed portion of the insulator, to prevent the electric field from leaking into the frost non-detection region through the exposed portion of the insulator. As the same potential is established at the first and second electrodes, it is possible to prevent electric field from leaking into a frost non-detection region through side surfaces of the first electrode. Accordingly, the electric field is varied only by frost formed in a frost detection region, so that it is possible to more accurately detect formation of frost and the amount of the formed frost.
    Type: Application
    Filed: October 15, 2010
    Publication date: May 12, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Suk Kwak, Young Chul Ko, Tae Gyu Kim, Nak Hyun Kim
  • Publication number: 20110094260
    Abstract: A roller evaporator for a snow machine includes an inner layer and an outer layer. The inner layer is fixed on a high pressure tube and a low pressure tube, and the outer layer corresponds to and rotates relatively with respect to the inner layer. A roller of the roller evaporator is divided into two layers, with the inner layer being installed and sealed on the high pressure tube. Therefore, an extremely good sealing effect is provided and refrigerant does leak out easily while making ice.
    Type: Application
    Filed: October 28, 2009
    Publication date: April 28, 2011
    Inventor: Mao-Tsai KU
  • Publication number: 20110094257
    Abstract: A micro-channel heat exchanger for use in a refrigerant vapor compression system and suitable for bending has two or more separate heat exchange panels joined by a brace. Bending occurs at the brace to eliminate or reduce bending loads and forces on the inlet headers, outlet headers, and heat exchange tubes of the head exchanger to prevent excessive damage to the heat exchanger components.
    Type: Application
    Filed: March 20, 2009
    Publication date: April 28, 2011
    Applicant: CARRIER CORPORATION
    Inventors: Giorgio Rusignuolo, Tiago Dutra Souza
  • Publication number: 20110079027
    Abstract: An embodiment of a probe includes a sensor and a support. The sensor is operable to provide an indication of a thickness of a frozen substance that has accumulated between the sensor and a cooling fin of a cooling unit, and the support is operable to hold the sensor spaced apart from the cooling fin. For example, a defrost controller may use an embodiment of such a probe to monitor an amount of frost build up on the fin or fins of a cooling unit (e.g., a refrigeration or freezer unit) so that the controller may initiate a defrost cycle only when warranted. Such a probe may be more reliable than other defrost-detection techniques, and such a defrost controller may increase the cooling and energy efficiencies of a cooling unit as compared to a cooling unit having a conventional defrost controller.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 7, 2011
    Applicant: THE CONTROLS GROUP, INC.
    Inventors: Michael A. Ghan, James R. Conant
  • Patent number: 7918107
    Abstract: An internal heat exchanger including an integrated accumulator is disclosed, wherein the heat exchanger is used in refrigerant circuits, particularly in motor vehicle heating, ventilation, and air conditioning systems.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: April 5, 2011
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Thomas Klotten, Roman Heckt, Stephan Köster
  • Publication number: 20110067420
    Abstract: An HVAC system for a vehicle. The HVAC system includes a battery management controller, which can be used to run the components of the HVAC system when the engine of the vehicle is not running.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Inventors: G. Kevin ALSTON, Machiko Taylor
  • Patent number: 7908883
    Abstract: A heat exchanger for a refrigerator includes a dividing wall that bifurcates the heat exchanger into first and second airflow passages. The fins include apertures therein, allowing for both horizontal and vertical movement of air through the heat exchanger. The dividing wall extends through the heat exchanger at an angle, which decreases the cross-sectional diameter of both the first and second airflow passages and results in accelerated air flow through the air passages. In use, air from the refrigerator is directed into the first airflow passage of the heat exchanger for heat exchange, and is then directed by curved baffles into the second airflow passage for further heat exchange. Air exiting the second airflow passage is then directed into a compartment of the refrigerator.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: March 22, 2011
    Assignee: Whirlpool Corporation
    Inventors: Guolian Wu, Steven J. Kuehl
  • Publication number: 20110056223
    Abstract: In a cooling system for an electronic device of the present invention, server rooms in which a plurality of servers are placed, an evaporator which is provided close to each of the servers, and cools exhaust air from the server by vaporizing a refrigerant with heat generating from the server, a cooling tower which is provided at a place higher than the evaporator, cools the refrigerant by outside air and water sprinkling, and condenses the vaporized refrigerant, and a circulation line in which the refrigerant naturally circulates between the evaporator and the cooling tower. According to the cooling system, an electronic device which is required to perform a precise operation with a heat generation amount from itself being large, such as a computer and a server, can be efficiently cooled at low running cost.
    Type: Application
    Filed: November 12, 2010
    Publication date: March 10, 2011
    Applicant: Hitachi Plant Technologies, Ltd.
    Inventors: Yasuhiro KASHIRAJIMA, Hiroshige KIKUCHI, Takumi SUGIURA, Koji WATANABE, Kenichi NAKASHIMA
  • Patent number: 7900354
    Abstract: A complete refrigeration system (CRS) including at least one heat exchanger which is designed to occupy an irregular volume to reduce the overall profile of the CRS. The heat exchanger may be a condenser or an evaporator, and includes a substantially solid body made of a thermally conductive metal, plastic, or other material. A plurality of fluid and refrigerant passageways are defined substantially within the solid body for conducing fluid and refrigerant, respectively, through the solid body and facilitating the transfer of heat between the fluid and refrigerant. Also disclosed is a method wherein the spatial orientation of each passageway is optimized with respect to all of the other passageways and the walls of the solid body by determining the relative distance of each passageway from all of the other passageways and the walls of the solid body at a plurality of points along each passageway, followed by adjusting the spatial orientation of the passageway accordingly.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: March 8, 2011
    Assignee: Tecumseh Products Company
    Inventors: Dan M. Manole, Donald L. Coffey
  • Publication number: 20110048066
    Abstract: A battery cooling system operates by pumping liquid through a cooling fluid circulation path. Because the battery cooling system pumps liquid, the compression system that generates the cooling power does not require the use of a condenser. The compression system utilizes a compression wave. An evaporator of the cooling system operates in the critical flow regime in which the pressure in an evaporator tube will remain almost constant and then ‘jump’ or ‘shock up’ to an increased pressure.
    Type: Application
    Filed: October 11, 2010
    Publication date: March 3, 2011
    Inventors: Thomas Gielda, Kristian Debus, Jay Harman, Don Tomasi
  • Publication number: 20110048059
    Abstract: A kimchi refrigerator includes an evaporator surrounding a storage chamber in contact with an outer surface of the storage chamber; a basket received in the storage chamber to receive at least one container storing kimchi, and taken in and out of the storage chamber according to the opening and closing operation of the door; and an auxiliary cooling member surface-contacting a front outer surface of the basket, which is adjacent to the evaporator. The auxiliary cooling member is made of a high thermal-conductivity material so that high inner temperature of the storage chamber is efficiently transferred, accordingly reducing the temperature deviation.
    Type: Application
    Filed: May 11, 2010
    Publication date: March 3, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo Hee Song, Hak Gyun Bae
  • Publication number: 20110048016
    Abstract: A production plant comprises a primary-process system (10) and an energy-recovery system (100). The energy-recovery system (100) includes a fluid line (110) for conveying a medium and a heat exchanger (120) placing the fluid line (110) in heat-transfer relationship with an exhaust line (40) upstream of a scrubber (70). The heat exchanger (120) causes condensation of water vapor within the exhaust line (40) and transfers heat to the medium within the fluid line (110).
    Type: Application
    Filed: November 23, 2009
    Publication date: March 3, 2011
    Inventor: Joseph G. Spagnuolo
  • Patent number: 7895860
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include manifold configurations designed to promote mixing of vapor phase and liquid phase refrigerant. The manifolds contain flow mixers such as a helical tape, sectioned volumes, and partitions containing apertures. The flow mixers direct the flow of refrigerant within the manifold to promote a more homogenous distribution of fluid within the multichannel tubes.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: March 1, 2011
    Assignee: Johnson Controls Technology Company
    Inventors: Jeffrey Lee Tucker, Mahesh Valiya-Naduvath, John T. Knight, Judd M. Vance
  • Patent number: 7886812
    Abstract: A heat exchanger comprising a heat exchange core composed of tube groups in the form of rows arranged in the direction of flow of air through the exchanger, each of the tube groups including a plurality of heat exchange tubes arranged at a spacing. A refrigerant inlet header and a refrigerant outlet header are positioned at the upper end of the core and having respective groups of heat exchange tubes joined thereto. A refrigerant turn tank is disposed at the lower end of the core. The turn tank has its interior divided by a partition wall into a refrigerant inflow header and a refrigerant outflow header. The heat exchange tubes have lower end portions inserted in the headers and are joined to the headers. Refrigerant passing holes are formed in the partition wall. The heat exchange tubes have their lower ends positioned below the lower ends of the holes.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: February 15, 2011
    Assignee: Showa Denko K.K.
    Inventor: Naohisa Higashiyama
  • Patent number: 7886811
    Abstract: An evaporator includes a refrigerant inlet header and a refrigerant outlet header arranged side by side in a front-rear direction, and a refrigerant circulating passage holding the headers in communication. The inlet and outlet headers are provided with caps forming refrigerant inlet and refrigerant outlet, the caps are joined to a pipe joint member having refrigerant inlet and outlet portions in communication with the refrigerant inlet and outlet, the caps or the pipe joint member is provided with a positioning lug which is projecting from its side edge toward the other one and which is fitted with a positioning recess formed in the other one, and the caps and the pipe joint member have flat surfaces to be contact with each other and are brazed such that the lug is engaged with the recess and that the flat surfaces are in contact with each other.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: February 15, 2011
    Assignee: Showa Denko K.K.
    Inventor: Naohisa Higashiyama
  • Publication number: 20110030403
    Abstract: A heat exchanger unit includes first and second plate heat exchangers disposed in series along a refrigerant flow direction. A refrigerant flows from the first plate heat exchanger to the second plate heat exchanger when the heat exchanger unit operates as an evaporator to heat the refrigerant, and the refrigerant flows from the second plate heat exchanger to the first plate heat exchanger when the heat exchanger unit operates as a condenser to cool the refrigerant. The first and second plate heat exchangers have first and second gas-liquid mixing structures to promote gas-liquid mixing of the refrigerant when the heat exchanger unit heats the refrigerant. The first and second gas-liquid mixing structures are configured such that pressure loss becomes larger when the gas-liquid mixing action becomes higher and such that the gas-liquid mixing action of the first gas-liquid mixing structure is higher than the gas-liquid mixing action of the second gas-liquid mixing structure.
    Type: Application
    Filed: April 20, 2009
    Publication date: February 10, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventor: Yasuhiro Kondou
  • Patent number: 7882708
    Abstract: The invention relates to a heat exchanger, especially for motor vehicles, comprising a soldered heat exchanger network made of flat pipes (2,3) and corrugated ribs (1). A liquid and/or vaporous-type medium can flow through the flat tubes (2, 3) and air can circulate around the corrugated ribs. One corrugated rib respectively comprises two surfaces (4,5) which are arranged in an essentially parallel manner in relation to each other and which are connected respectively by an arch-shaped piece (6) which is soldered to a flat pipe, said arch-shaped piece comprising three sections (6a,6b,6c) which have different curvatures.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: February 8, 2011
    Assignee: Behr GmbH & Co. KG
    Inventors: Rainer Richter, Gerrit Wölk, Ralf Bochert, Wolfgang Kramer, Martin Kaspar, Arnold Rehm
  • Publication number: 20110023522
    Abstract: An evaporator includes a cylindrical aluminum pipe, and two aluminum flanges which are fixed to both end surfaces of the aluminum pipe by screws. Screw holes into which screws are inserted can be formed in the wall of the aluminum pipe in a direction of the axis of the aluminum pipe simultaneously upon extrusion of the aluminum pipe. Communicating holes formed in the flanges communicate each set of two adjacent through holes among a plurality of the through holes formed in the wall of the aluminum pipe, thereby constructing one continuous coolant flow path inside the evaporator.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Inventors: Atsushi Sugita, Yoshiaki Kumakiri, Akihiko Hirano
  • Publication number: 20110011120
    Abstract: The present invention refers to an improved cooling system for a refrigerator, preferably a domestic refrigerator, comprising a cell in which is located at least one compartment for the storage of food below freezing point, with said compartment being cooled using at least one wire tube evaporator arranged on at least one wall of said cell. It is provided for according to the invention that a wire tube evaporator (3, 4, 5) arranged inside said cell (1) is hydraulically connected to a tube evaporator (7), which extends in a manner similar to a coil (6) along the outer periphery of said cell (1).
    Type: Application
    Filed: June 30, 2010
    Publication date: January 20, 2011
    Applicant: GORENJE GOSPODINJSKI APARATI, D.D.
    Inventors: Edi POCAJT, Izidor ZUPANC, Vladimir BAC, Marko KRALJ, Vasilij KUGONIC, Valentin BOROVNIK
  • Publication number: 20110011106
    Abstract: A refrigerator having a refrigerator body including a first cooling chamber and a second cooling chamber, a barrier wall located between the first cooling chamber and the second cooling chamber, an evaporator configured to provide cooling air, a first cooling fan configured to provide cooling air of the evaporator to the first cooling chamber, and a second cooling fan configured to provide cooling air of the evaporator to the second cooling chamber is provided. A method of providing cooling air flow in a refrigerator is also provided.
    Type: Application
    Filed: June 17, 2010
    Publication date: January 20, 2011
    Inventors: Kwang-Woon AHN, Young-Jin Kim, Yeon-Woo Cho, Gye-Young Song
  • Publication number: 20110011118
    Abstract: A refrigerator is provided, including a refrigerator body having first and second cooling chambers formed therein, partitioned by a barrier wall, an evaporator provided within the barrier wall, a first cooling fan disposed at one side of the evaporator to blow cooling air into the first cooling chamber, and a second cooling fan provided at the other side of the evaporator to blow cooling air to the second cooling chamber. First and second suction openings are formed at upper and lower surfaces of the barrier wall, respectively, such that air drawn into the barrier wall through the first and second suction openings are brought into contact with different regions of the evaporator and is not mixed, so that the first and second cooling chambers may be separately or simultaneously cooled to appropriate temperatures.
    Type: Application
    Filed: June 9, 2010
    Publication date: January 20, 2011
    Inventors: Yeon-Woo CHO, Gye-Young Song, Kwang-Woon Ahn, Young-Jin Kim
  • Publication number: 20110005271
    Abstract: In a vehicular air conditioning apparatus, first and second partitioning members are installed at the boundary region between a first cooling section and a second cooling section of an evaporator. The evaporator is divided into the first cooling section and the second cooling section by the first and second partitioning members. In a condition where air is not blown in either one of the passages in which the first cooling section and the second cooling section are provided, air that flows through one of the passages is prevented from flowing into the other passage while passing through the interior of the evaporator.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Takahiro Seto, Junichi Kanemaru, Shinji Kakizaki
  • Patent number: 7861553
    Abstract: Provided is a suction pipe assembly with improved heat conductivity and a manufacturing method thereof. The suction pipe assembly includes a suction pipe, a capillary, a heat transmission pipe, and an adhesive agent. The suction pipe is disposed between a compressor and an evaporator and guides a refrigerant ejected from the evaporator to the compressor in a cooling system executing cooling by circulating the refrigerant and including the compressor, the condenser and the evaporator. The capillary is disposed between the condenser and the evaporator and guides the refrigerant ejected from the condenser to the evaporator. The heat transmission pipe includes the capillary inside and a contact portion for widening a contact area to the suction pipe outside to tightly contact the suction pipe. The adhesive agent is interposed between an external surface of the suction pipe and the contact portion to connect the heat transmission pipe with the suction pipe.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: January 4, 2011
    Assignee: Korea Bundy Co., Ltd.
    Inventor: Byung Hee Ryoo
  • Patent number: 7849710
    Abstract: A falling film evaporator is provided for use in a two-phase refrigeration system or process system. The evaporator includes a shell having an upper portion, a lower portion, and a tube bundle having tubes extending substantially horizontally in the shell. A hood is disposed over the tube bundle, the hood having an upper end adjacent the upper portion above the tube bundle, the upper end having opposed substantially parallel walls extending toward the lower portion, the walls terminating at an open end opposite the upper end. Once liquid refrigerant or liquid refrigerant and vapor refrigerant is deposited onto the tube bundle, the substantially parallel walls of the hood substantially prevent cross flow of refrigerant vapor or liquid and vapor between the tubes of the tube bundle.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: December 14, 2010
    Assignee: York International Corporation
    Inventors: Paul De Larminat, Luc Le Cointe, John Francis Judge, Satheesh Kulankara
  • Publication number: 20100307175
    Abstract: A method and apparatus for conditioning ambient air for use in an enclosure is disclosed which cools the ambient supply air stream in sensible energy recovery device or cools and dehumidifies the ambient supply air stream in an enthalpy energy recovery device. The thus cooled air is then cooled by a cooling coil of a refrigerant cooling system to reduce its temperature and humidity. The thus cooled and dehumidified air is then passed through a segment of a rotating desiccant wheel or through a different type of desiccant dehumidification device under conditions which reduce its moisture content and increases its temperature. The supply air is then delivered from the desiccant wheel to the enclosure. The desiccant wheel is regenerated by heating a separate regeneration air stream, provided by the exhaust air from the space and using the condensing coil of the refrigerant system to increase the regeneration air stream temperature.
    Type: Application
    Filed: February 13, 2009
    Publication date: December 9, 2010
    Inventors: Peter Teige, Michael Hayes
  • Publication number: 20100305775
    Abstract: A pumped refrigerant cooling system for use in a row of equipment racks is configured to contain electronic equipment. The system includes a communication network and a refrigerant distribution unit in fluid communication with a chilled refrigerant supply and a heated refrigerant return. A cooling module is in fluid communication with the refrigerant distribution unit by a supply line and a return line. The cooling module is coupled to the communication network, and includes an evaporator and a fan configured to direct air over the evaporator. A sensor package is configured to monitor temperature and pressure reference points provided in the pumped refrigerant cooling system and the equipment racks. The system further includes a controller forming part of the cooling module and coupled to the communication network and the sensor package.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: American Power Conversion Corporation
    Inventors: John H. Bean, JR., James Richard Roesch, Zhihai Gordon Dong, Stuart Lee Dill
  • Publication number: 20100293994
    Abstract: A hydrophilic composition and a hydrophilic member obtained by using the composition are provided, which composition contains a hydrophilic polymer having a specific structure of having a hydrolysable group in the side chain thereof in a content of 50% by weight or more based on the weight of the solid components and further contains an additive having an antifungal property, and which composition shows excellent water resistance and maintains the high hydrophilicity even after being stored for a long period under an environment of high temperature and high humidity.
    Type: Application
    Filed: January 23, 2009
    Publication date: November 25, 2010
    Inventors: Yuichiro Murayama, Yoshiaki Kondo
  • Publication number: 20100287978
    Abstract: This invention employs an arrangement of flat plate heat exchangers and a pump that function as a thermal powered hydronic ammonia absorption chiller. Chilling is achieved by bubbling ammonia gas through a liquid refrigerant causing a reduction of the partial pressure of the refrigerant and evaporation with the absorption of heat. The refrigerant and working fluids can be selected to have a broad range of operating pressures. If the refrigerant and working fluid are selected so that the atmospheric boiling point is the about the same as the highest operating ambient temperature, the chiller can operate with low, or even no internal pressure. The low operating pressures allow the use of light weight materials, easy fabrication, low cost and safety. This chiller is especially suited for using solar heated water, cooling water from internal combustion engines or any source of hot water. The chiller is easily scalable to any size and will find wide application for comfort air conditioning or food storage.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 18, 2010
    Inventor: Robert David Moreland
  • Patent number: 7832231
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided which include tube and manifold configurations designed to promote separation of vapor phase and liquid phase fluid. The manifolds contain multichannel tubes of various end geometries designed to dispose flow channels at different heights within the manifold. Individual tubes also may be disposed at different heights within the manifold. The various flow channel and tube heights permit direction of vapor phase and liquid phase refrigerant to certain flow channels.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: November 16, 2010
    Assignee: Johnson Controls Technology Company
    Inventors: John T. Knight, Jeffrey Lee Tucker, Mahesh Valiya-Naduvath
  • Publication number: 20100281903
    Abstract: Service life of the compressor is extended. The evaporator is provided with the housing having the suction port connectable to the suction portion of the compressor in order to evaporate at least part of a droplet or misty working fluid in the housing by a suction effect of the compressor through the suction port, comprising a filter installed in the housing, the filter dividing a space in the housing into the first space for generating the droplet or misty working fluid and the second space for communicating with the suction port, the filter being inclined away from the suction port as advancing upward, and the filter transmitting therethrough vapor resulting from evaporation of the droplet or misty working fluid while capturing the droplet or misty working fluid.
    Type: Application
    Filed: November 20, 2008
    Publication date: November 11, 2010
    Inventors: Kazuto Okada, Ryo Fujisawa, Masatake Toshima, Yoshihiro Nakayama, Satoshi Ide, Koichiro Iizuka, Kunihiko Suto, Kazutaka Kurashige, Ichirou Sakuraba, Daisuke Hayashi, Shinji Shato, Masaki Ikeuchi, Marcin Blazniak Andreasen, Hans Madsboll, Christian Svarregaard-Jensen
  • Publication number: 20100281902
    Abstract: An air conditioning system for a vehicle includes a compressor, a condenser, a first sub-cooler, a metering device, and an evaporator assembly. The evaporator assembly includes an evaporator and a second sub-cooler. The second sub-cooler is arranged below the evaporator such that water condensation from the evaporator drains onto the second sub-cooler to cool the second sub-cooler such that a temperature of the refrigerant exiting the second sub-cooler is less than a temperature of the refrigerant exiting the first sub-cooler.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 11, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shinji Kakizaki, Junichi Kanemaru
  • Publication number: 20100275618
    Abstract: A system for distributing a cooling fluid in a room containing at least one heat generating component includes a primary heat exchanger having an inlet for receiving the cooling fluid, a heat exchange section configured to facilitate exchange of heat between airflow in the room and the cooling fluid, and an outlet for exhausting heated cooling fluid from the heat exchange section. The system also includes a secondary heat exchanger having a receiving section connected to the second section of a cooling fluid line for receiving heated cooling fluid, a heat exchange section configured to facilitate exchange of heat between the at least one heat generating component and the heated cooling fluid, and an exhaust section configured to exhaust secondarily heated cooling fluid.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventors: Abdlmonem Beitelmal, Cullen E. Bash
  • Publication number: 20100275779
    Abstract: A split type potable water extractor from ambient air and water dispenser is invented, comprising separate water generating block located outside a water use area and water dispensing block located inside a water use area. The water generator block cycles refrigerant through a condenser and an evaporator to create condensation by heat exchange with ambient air circulated by an intake airflow system. The condensate water is collected and purified in a cascade of bactericidal loop to remove impurities. The purified water is pumped to a dispensing apparatus which can be installed in the home or other area of water use separate from the water generating block. If any one of the functional parts or units of water generator is disabled the water generator immediately stops operating to deliver water to the tank of the dispensing apparatus.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventor: Zohrab Melikyan
  • Patent number: 7823406
    Abstract: An evaporator including a refrigerant inlet header having a refrigerant inlet at one end thereof, and a plurality of heat exchange tubes arranged at a spacing longitudinally of the inlet header and each having one end joined to the inlet header. The interior of the inlet header is divided by a flow dividing control wall into an upper space for admitting a refrigerant thereinto through the refrigerant inlet and a lower space communicating with the heat exchange tubes. The control wall has a communication hole formed in an end portion thereof opposite to the refrigerant inlet. The upper and lower spaces communicate with each other through the communication hole so that the refrigerant flows through the lower space in a direction opposite to the direction of flow of the refrigerant in the upper space. The evaporator achieves a high heat exchange efficiency.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: November 2, 2010
    Assignee: Showa Denko K. K.
    Inventor: Naohisa Higashiyama
  • Publication number: 20100269520
    Abstract: One embodiment comprises an apparatus with an evaporative unit for a refrigerant having a flow direction opposing the airflow direction and an adjustable airflow rate to utilize to produce both cold/dehumidified exit air and warmed exit refrigerant for high efficiency and to maintain an airflow sufficient to avoid freeze-up of evaporative unit or freeze-up to an extent that blocks the airflow. This may produce low humidity even when the room thermostat is set warm (e.g. 85F) and 5%-30% lower A/C bills. Other embodiments comprise systems and methods related to the adjustable airflow. A further embodiment comprises a controller to adjust the humidity in an air-conditioned space to produce air, which is both temperature and humidity controlled.
    Type: Application
    Filed: December 17, 2009
    Publication date: October 28, 2010
    Inventor: Steven Clay Moore