Evaporator, E.g., Heat Exchanger Patents (Class 62/515)
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Patent number: 8099978Abstract: 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: GrantFiled: October 2, 2008Date of Patent: January 24, 2012Assignee: Denso CorporationInventors: Thuya Aung, Tomohiko Nakamura, Yoshiyuki Okamoto, Hideaki Sato, Nobuharu Kakehashi
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Patent number: 8082749Abstract: 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: GrantFiled: July 10, 2008Date of Patent: December 27, 2011Assignee: SANYO Electric Co., Ltd.Inventors: Takashi Sekine, Kenji Kobayashi, Naoki Sakamoto
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Publication number: 20110296851Abstract: 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: ApplicationFiled: June 8, 2011Publication date: December 8, 2011Inventors: Gottfried DUERR, Guenther Feuerecker, Stefan Hirsch, Tobias Isermeyer, Caroline Schmid, Christoph Walter, Achim Wiebelt
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Publication number: 20110271711Abstract: 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: ApplicationFiled: January 19, 2010Publication date: November 10, 2011Inventors: Kaori Yoshida, Mitsuharu Numata, Hyunyoung Kim
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Publication number: 20110271710Abstract: 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: ApplicationFiled: September 23, 2009Publication date: November 10, 2011Inventors: Joan Aguilar, Karl-Heinz Schlegel
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Patent number: 8037929Abstract: 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: GrantFiled: December 7, 2005Date of Patent: October 18, 2011Assignee: Showa Denko K.K.Inventor: Naohisa Higashiyama
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Patent number: 8037699Abstract: 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: GrantFiled: April 17, 2009Date of Patent: October 18, 2011Assignee: Mitsubishi Electric CorporationInventors: Sangmu Lee, Akira Ishibashi, Takuya Matsuda
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Publication number: 20110232326Abstract: 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: ApplicationFiled: November 13, 2009Publication date: September 29, 2011Applicant: BSH BOSCH UND SIEMENS HAUSGERÄTE GMBHInventors: Berthold Pflomm, Bernd Schlögel
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Publication number: 20110226005Abstract: 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: ApplicationFiled: November 23, 2010Publication date: September 22, 2011Inventor: Hyung Jun Lee
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Patent number: 7992401Abstract: 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: GrantFiled: June 29, 2005Date of Patent: August 9, 2011Assignee: Showa Denko K.K.Inventor: Naohisa Higashiyama
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Publication number: 20110174015Abstract: 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: ApplicationFiled: January 17, 2011Publication date: July 21, 2011Applicant: DENSO CORPORATIONInventors: Youhei Nagano, Haruyuki Nishijima, Yoshiaki Takano
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Patent number: 7981254Abstract: 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: GrantFiled: August 29, 2008Date of Patent: July 19, 2011Assignee: Hitachi, Ltd.Inventors: Tadaharu Kishibe, Susumu Nakano, Takanori Shibata
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Publication number: 20110120181Abstract: 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: ApplicationFiled: January 19, 2011Publication date: May 26, 2011Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANYInventors: Paul DE LARMINAT, Luc LE COINTE, Satheesh KULANKARA
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Publication number: 20110113823Abstract: 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: ApplicationFiled: October 14, 2009Publication date: May 19, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yasunobu Joboji, Jun Ito, Takamitsu Himeno, Hitoshi Tamaki
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Publication number: 20110113824Abstract: 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: ApplicationFiled: July 7, 2009Publication date: May 19, 2011Inventor: Husnu Kerpicci
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Publication number: 20110107779Abstract: 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: ApplicationFiled: October 15, 2010Publication date: May 12, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Suk Kwak, Young Chul Ko, Tae Gyu Kim, Nak Hyun Kim
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Publication number: 20110094260Abstract: 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: ApplicationFiled: October 28, 2009Publication date: April 28, 2011Inventor: Mao-Tsai KU
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Publication number: 20110094257Abstract: 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: ApplicationFiled: March 20, 2009Publication date: April 28, 2011Applicant: CARRIER CORPORATIONInventors: Giorgio Rusignuolo, Tiago Dutra Souza
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Publication number: 20110079027Abstract: 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: ApplicationFiled: October 4, 2010Publication date: April 7, 2011Applicant: THE CONTROLS GROUP, INC.Inventors: Michael A. Ghan, James R. Conant
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Patent number: 7918107Abstract: 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: GrantFiled: June 28, 2007Date of Patent: April 5, 2011Assignee: Visteon Global Technologies, Inc.Inventors: Thomas Klotten, Roman Heckt, Stephan Köster
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Publication number: 20110067420Abstract: 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: ApplicationFiled: September 20, 2010Publication date: March 24, 2011Inventors: G. Kevin ALSTON, Machiko Taylor
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Patent number: 7908883Abstract: 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: GrantFiled: April 18, 2008Date of Patent: March 22, 2011Assignee: Whirlpool CorporationInventors: Guolian Wu, Steven J. Kuehl
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Publication number: 20110056223Abstract: 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: ApplicationFiled: November 12, 2010Publication date: March 10, 2011Applicant: Hitachi Plant Technologies, Ltd.Inventors: Yasuhiro KASHIRAJIMA, Hiroshige KIKUCHI, Takumi SUGIURA, Koji WATANABE, Kenichi NAKASHIMA
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Patent number: 7900354Abstract: 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: GrantFiled: September 5, 2008Date of Patent: March 8, 2011Assignee: Tecumseh Products CompanyInventors: Dan M. Manole, Donald L. Coffey
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Publication number: 20110048066Abstract: 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: ApplicationFiled: October 11, 2010Publication date: March 3, 2011Inventors: Thomas Gielda, Kristian Debus, Jay Harman, Don Tomasi
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Publication number: 20110048059Abstract: 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: ApplicationFiled: May 11, 2010Publication date: March 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joo Hee Song, Hak Gyun Bae
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Publication number: 20110048016Abstract: 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: ApplicationFiled: November 23, 2009Publication date: March 3, 2011Inventor: Joseph G. Spagnuolo
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Patent number: 7895860Abstract: 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: GrantFiled: February 29, 2008Date of Patent: March 1, 2011Assignee: Johnson Controls Technology CompanyInventors: Jeffrey Lee Tucker, Mahesh Valiya-Naduvath, John T. Knight, Judd M. Vance
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Patent number: 7886812Abstract: 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: GrantFiled: October 29, 2004Date of Patent: February 15, 2011Assignee: Showa Denko K.K.Inventor: Naohisa Higashiyama
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Patent number: 7886811Abstract: 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: GrantFiled: November 15, 2004Date of Patent: February 15, 2011Assignee: Showa Denko K.K.Inventor: Naohisa Higashiyama
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Publication number: 20110030403Abstract: 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: ApplicationFiled: April 20, 2009Publication date: February 10, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventor: Yasuhiro Kondou
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Patent number: 7882708Abstract: 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: GrantFiled: July 25, 2003Date of Patent: February 8, 2011Assignee: Behr GmbH & Co. KGInventors: Rainer Richter, Gerrit Wölk, Ralf Bochert, Wolfgang Kramer, Martin Kaspar, Arnold Rehm
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Publication number: 20110023522Abstract: 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: ApplicationFiled: July 30, 2009Publication date: February 3, 2011Inventors: Atsushi Sugita, Yoshiaki Kumakiri, Akihiko Hirano
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Publication number: 20110011120Abstract: 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: ApplicationFiled: June 30, 2010Publication date: January 20, 2011Applicant: GORENJE GOSPODINJSKI APARATI, D.D.Inventors: Edi POCAJT, Izidor ZUPANC, Vladimir BAC, Marko KRALJ, Vasilij KUGONIC, Valentin BOROVNIK
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Publication number: 20110011106Abstract: 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: ApplicationFiled: June 17, 2010Publication date: January 20, 2011Inventors: Kwang-Woon AHN, Young-Jin Kim, Yeon-Woo Cho, Gye-Young Song
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Publication number: 20110011118Abstract: 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: ApplicationFiled: June 9, 2010Publication date: January 20, 2011Inventors: Yeon-Woo CHO, Gye-Young Song, Kwang-Woon Ahn, Young-Jin Kim
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Publication number: 20110005271Abstract: 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: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicants: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Takahiro Seto, Junichi Kanemaru, Shinji Kakizaki
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Patent number: 7861553Abstract: 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: GrantFiled: October 13, 2008Date of Patent: January 4, 2011Assignee: Korea Bundy Co., Ltd.Inventor: Byung Hee Ryoo
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Patent number: 7849710Abstract: 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: GrantFiled: October 12, 2005Date of Patent: December 14, 2010Assignee: York International CorporationInventors: Paul De Larminat, Luc Le Cointe, John Francis Judge, Satheesh Kulankara
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Publication number: 20100307175Abstract: 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: ApplicationFiled: February 13, 2009Publication date: December 9, 2010Inventors: Peter Teige, Michael Hayes
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Publication number: 20100305775Abstract: 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: ApplicationFiled: May 28, 2009Publication date: December 2, 2010Applicant: American Power Conversion CorporationInventors: John H. Bean, JR., James Richard Roesch, Zhihai Gordon Dong, Stuart Lee Dill
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Publication number: 20100293994Abstract: 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: ApplicationFiled: January 23, 2009Publication date: November 25, 2010Inventors: Yuichiro Murayama, Yoshiaki Kondo
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Publication number: 20100287978Abstract: 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: ApplicationFiled: May 18, 2009Publication date: November 18, 2010Inventor: Robert David Moreland
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Patent number: 7832231Abstract: 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: GrantFiled: February 29, 2008Date of Patent: November 16, 2010Assignee: Johnson Controls Technology CompanyInventors: John T. Knight, Jeffrey Lee Tucker, Mahesh Valiya-Naduvath
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Publication number: 20100281903Abstract: 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: ApplicationFiled: November 20, 2008Publication date: November 11, 2010Inventors: 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
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Publication number: 20100281902Abstract: 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: ApplicationFiled: May 8, 2009Publication date: November 11, 2010Applicant: HONDA MOTOR CO., LTD.Inventors: Shinji Kakizaki, Junichi Kanemaru
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Publication number: 20100275618Abstract: 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: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Inventors: Abdlmonem Beitelmal, Cullen E. Bash
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Publication number: 20100275779Abstract: 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: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Inventor: Zohrab Melikyan
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Patent number: 7823406Abstract: 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: GrantFiled: July 15, 2005Date of Patent: November 2, 2010Assignee: Showa Denko K. K.Inventor: Naohisa Higashiyama
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Publication number: 20100269520Abstract: 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: ApplicationFiled: December 17, 2009Publication date: October 28, 2010Inventor: Steven Clay Moore