Evaporator, E.g., Heat Exchanger Patents (Class 62/515)
  • Patent number: 10323868
    Abstract: Apparatuses, systems and methods implementing a multi-coil heat exchanger are directed to providing good heat transfer performance, capacity, and efficiency, and while reducing pressure drop through multi-coil microchannel evaporators. The multi-coil heat exchanger in some examples is a multi-coil microchannel evaporator. The multi-coil microchannel evaporator can be implemented in a refrigerant system that is a single circuit, where the multi-coil microchannel evaporator is an air to refrigerant type heat exchanger. The multi-coil microchannel evaporator includes a distribution to the multiple coils of the multi-coil microchannel evaporator, where the distribution includes one or more separations to transmit refrigerant to each of the coils of the multi-coil microchannel evaporator and one or more junctions to transmit refrigerant from the coils.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: June 18, 2019
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Justin S. Winters, Doyle R. Goodman, Brandy L. Harper, Jun Wang, Robert Fredrick Schult
  • Patent number: 10317117
    Abstract: An evaporator (168) in a vapor compression system (14) (168) includes a shell (76), a first tube bundle (78); a hood (86); a distributor (80); a first supply line (142); a second supply line (144); a valve (122) positioned in the second supply line (144); and a sensor (150). The distributor (80) is positioned above the first tube bundle (78). The hood (88) covers the first tube bundle (78). The first supply line (142) is connected to the distributor (80) and an end of the second supply line (144) is positioned near the hood (88). The sensor (150) is configured and positioned to sense a level of liquid refrigerant (82) in the shell. The valve (122) regulates flow in the second supply line in response to the level of liquid refrigerant (82) from the sensor (150).
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 11, 2019
    Assignee: Johnson Controls Technology Company
    Inventors: Jeb W. Schreiber, Jay A. Kohler, Paul De Larminat, Mustafa Kemal Yanik, William F. McQuade, Justin P. Kauffman, Soren Bierre Poulsen, Lee Li Wang, Satheesh Kulankara
  • Patent number: 10132526
    Abstract: In an ejector refrigeration cycle, an inlet of a nozzle portion of an ejector is connected to a refrigerant outlet side of a high-stage side evaporator, a refrigerant suction port of the ejector is connected to a refrigerant outlet side of a low-stage side evaporator, and an internal heat exchanger is provided for exchanging heat between a high-pressure refrigerant flowing into a low-stage side throttle device for decompressing the refrigerant flowing into the low-stage side evaporator, and a low-stage side low-pressure refrigerant flowing out of the low-stage side evaporator. Because a difference in enthalpy between the inlet and outlet of the low-stage side evaporator can be enlarged, the cooling capacities exhibited by the respective evaporators can be adjusted to be closer to each other even if the flow-rate ratio Ge/Gn of the suction refrigerant flow rate Ge to the injection refrigerant flow rate Gn is set to a relatively small value so as to make it possible to improve the COP of the cycle.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: November 20, 2018
    Assignee: DENSO CORPORATION
    Inventors: Gouta Ogata, Yuichi Shirota, Hiroya Hasegawa, Tatsuhiro Suzuki
  • Patent number: 10060659
    Abstract: A noise reduction insert for an evaporator. The noise reduction insert includes a body defining an inner volume of the insert. The body extends along a longitudinal axis of the insert. A perforated portion of the body defines a plurality of openings configured to allow fluid to pass out from within the inner volume through the plurality of openings. A flange at a first end of the body is opposite to a second end of the body. The flange defines an aperture through which the longitudinal axis extends. The aperture is configured to permit fluid to flow therethrough and into the inner volume defined by the body.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 28, 2018
    Assignee: DENSO International America, Inc.
    Inventors: Prakash Thawani, Stephen Sinadinos, Derrick Scott, Anthony Faulkner, Hiroyuki Hayashi
  • Patent number: 9995513
    Abstract: Provided in an interior of a leeward tank unit of a leeward evaporation portion is a refrigerant flow changing portion that guides a refrigerant from a first refrigerant collecting portion to a second refrigerant distributing portion and guides a refrigerant from a second refrigerant collecting portion to a first refrigerant distributing portion. The refrigerant flow changing portion is configured such that a refrigerant flow guided from the first refrigerant collecting portion to the second refrigerant distributing portion and a refrigerant flow guided from the second refrigerant collecting portion to the first refrigerant distributing portion are in a non-crossed state when viewed from a longitudinal direction of tubes.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 12, 2018
    Assignee: DENSO CORPORATION
    Inventor: Norimasa Baba
  • Patent number: 9803928
    Abstract: An evaporator is used in an inclined state in which a first header tank is located on the upper side in relation to a second header tank. The leeward and windward header sections of the first header tank have compartments with which the furthest tube groups of leeward and windward tube rows communicate. The compartments are divided into upper and lower spaces by split flow control sections, and the upper and lower spaces communicate through refrigerant passage holes formed in the split flow control sections. The total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the lower side in the inclined state is smaller than the total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the upper side in the inclined state.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 31, 2017
    Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventor: Motoyuki Takagi
  • Patent number: 9500399
    Abstract: A water purifier with an ice maker is provided that may include an ice making part (200) having an evaporator (210) and a circulation cooling part (300) that circulates water stored in a cold water tank (310) to the evaporator (210) so that the water stored in the cold water tank (310) is cooled by performing a heat exchange with refrigerant flowing in the evaporator (210). With the configurations as described above, it is possible to simultaneously make ice and cool water using a single evaporator. Therefore, there is no need to make separate ice so as to cool water, thereby making it possible to enhance the energy efficiency of the water purifier with an ice maker.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 22, 2016
    Assignee: Woongjin Coway Co., Ltd
    Inventors: Jin Hwan Noh, Hee-Do Jung
  • Patent number: 9410749
    Abstract: The invention relates to an heat exchanger element of a plate type, with one internal flow passage, comprising two plates defining an inlet, an outlet and an internal passage extending between said inlet and said outlet, whereas said passage is between two generally parallel plates of self supporting polymer material. The present invention also relates to the use of such an exchanger element as collector in a solar energy arrangement, as chilled beam, as hear distributing element, as subterranean collector, as exchange element in industrial processes and as heat absorber in arrangements for cooling electrical components that are negatively affected by being close to elements having electrical conductivity.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: August 9, 2016
    Assignee: JLO INVEST AB
    Inventor: Per Gunnar Eriksson
  • Patent number: 9234706
    Abstract: A plurality of heat transfer fins are arranged so as to surround straight pipe portions of heat transfer tubes connected through bends in a serpentine arrangement. Heat transfer surfaces for transferring heat between air of the heat transfer tubes and the heat transfer fins have holes each having a radius smaller than the critical radius of a nucleus that occurs upon phase change from water vapor to condensed water droplets such that the holes are filled with the air at all times. Water is allowed to move from the holes filled with the air having low surface energy to metal part having high surface energy, thus improving drainage.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: January 12, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mamoru Hamada, Yusuke Tashiro, Hisatoshi Fukumoto, Koji Yamashita, Hiroyuki Morimoto
  • Patent number: 9182169
    Abstract: The invention relates to a device (1, 10) for the production of cooled coffee, comprising a brewing unit (4) for the production of coffee, a cooling assembly (11) and a coffee cooler (14) formed as a heat exchanger, wherein the coffee cooler (14) has at least one first and one second flow path that are connected thermally but not in a fluid-conducting manner, wherein a coolant can flow through the first flow path and the second flow path is connected in a fluid-conducting manner with a coffee outlet (5) of the brewing unit (4).
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: November 10, 2015
    Assignee: FRANKE KAFFEEMASCHINEN AG
    Inventors: Stefan Stahl, Mariano Turi, Heinz Vetterli
  • Patent number: 9032757
    Abstract: A cold storage heat exchanger includes multiple refrigerant tubes, a cold storage container, an inner fin, a cooling air passage and an air-side fin. The inner fin is arranged inside of the cold storage container. The cooling air passage, in which air flows to cool a space, is provided to contact a surface of the refrigerant tube on a side opposite to the cold storage container. The air-side fin is arranged in the cooling air passage and thermally connected to the refrigerant tube. The cold storage container includes multiple recess portions bonded to the inner fin, and multiple protrusion portions located on an outer side of the recess portions. The protrusion portions of the cold storage container are bonded to an outer surface of the refrigerant tube.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: May 19, 2015
    Assignee: DENSO CORPORATION
    Inventors: Atsushi Yamada, Seiji Inoue, Yoshio Miyata, Naoki Yokoyama, Etsuo Hasegawa, Jun Abei, Hiroshi Ishikawa, Aun Ota, Kouta Hagihara
  • Publication number: 20150128641
    Abstract: A heat exchanger for cooling a heating tube is described, comprising at least two cooling pipes, wherein the at least two cooling pipes are arranged such that each of the at least two cooling pipes are configured to be in thermal contact with the heating tube; and a means for generating an aerosol being configured to provide the aerosol in the at least two cooling pipes.
    Type: Application
    Filed: December 9, 2011
    Publication date: May 14, 2015
    Applicant: Applied Materials, Inc.
    Inventors: Gerd Hoffmann, Peter Skuk
  • Publication number: 20150121950
    Abstract: An automotive evaporator heat exchanger is provided having a hybrid expansion device configured to aliquot refrigerant across the refrigerant tubes. The hybrid expansion device includes a first stage refrigerant pressure drop device and a second stage refrigerant pressure drop device. The first stage refrigerant pressure drop device is a TXV configured to receive and expand a liquid phase refrigerant into a first mixture of two phase refrigerant and the second stage refrigerant pressure drop device is a tube extending within the inlet manifold configured to expand the first mixture of two phase refrigerant into a second mixture of two phase refrigerant. The tube includes a plurality of orifices and a tube diameter large enough to prevent resistance to refrigerant flow, but, small enough to prevent the first mixture of two phase refrigerant flow from separating into liquid and vapor strata.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: SOURAV CHOWDHURY, PRASAD SHRIPAD KADLE, CARRIE M. KOWSKY
  • Patent number: 9021818
    Abstract: Device for cool drying comprising a heat exchanger (2) whose primary part is the vaporizer (3) of a cooling circuit (4) which also includes a compressor (6) driven by a motor (5), a control device (16) for this motor (5) and measuring device (17) for the lowest air temperature (LAT), measuring device (18) for the ambient temperature (Tamb) and a flow meter (19), whereby this control device (16) can be at least switched in a first user mode in which the cooling circuit (4) is only activated when the gas flow exceeds a preset value and a second user mode in which the lowest air temperature (LAT) is maintained within a certain range by controlling the cooling circuit (4).
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: May 5, 2015
    Assignee: Atlas Copco Airpower, Naamloze Vennootschap
    Inventors: Monica Dalla Valle, Wouter Denis Ann Van Dijck
  • Publication number: 20150114027
    Abstract: A cooling system includes a first indirect heat exchanger configured to receive return air from an interior space and output conditioned air back into the interior space. The cooling system further includes a second indirect heat exchanger configured to receive outside air. A fluid conduit directs a flow of cooling fluid from the first indirect heat exchanger, through the second indirect heat exchanger, and back to the first indirect heat exchanger. A pump circulates the cooling fluid between the first and second indirect heat exchangers at a fluid flow rate that is relatively flow. Additionally, return air and outside air flows through corresponding indirect heat exchangers at air velocities that are also relatively slow. The relatively slow fluid flow rate and air velocities enhance an efficiency of heat transfer between the cooling fluid and the return air and between the cooling fluid and outside air.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: UNITED METAL PRODUCTS, INC.
    Inventor: Stephen W. Kinkel
  • Publication number: 20150107295
    Abstract: An evaporator configured to transfer heat between air flowing through the evaporator and refrigerant within the evaporator, and transfer heat between the refrigerant within the evaporator and phase change material (PCM) within the evaporator. The evaporator includes a first plate, a second plate, and a first tube. The second plate is coupled to the first plate to form an assembly that defines a cavity to contain PCM. The assembly also defines a first opening that cooperates with corresponding first openings in other assemblies to define a first manifold to convey refrigerant. The first manifold is defined when the assembly is arranged with the other assemblies to form a stack. The first tube is in fluidic communication with the first manifold. The assembly cooperates with an adjacent assembly of the other assemblies when the stack is formed to define a first slot configured to receive the first tube.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 23, 2015
    Inventors: GARY S. VREELAND, SCOTT B. LIPA
  • Publication number: 20150101362
    Abstract: A heat exchanger includes a plurality of plate-shaped fins arranged at intervals such that air flows between adjacent fins, each of the fins having insertion holes and a plurality of flat tubes extending through the fins such that a refrigerant flows through the tubes in a stacking direction of the fins, each flat tube having a cross-section having straight long sides and half-round short sides, each flat tube having long-side outer circumferential surface parts and a short-side outer circumferential surface part in contact with the fin and covered with the brazing filler metal. The fins and the flat tubes are joined with the brazing filler metal covering the outer circumferential surfaces of the flat tubes such that top part of each fin collar of each fin is in contact with the flat tube and base part of the fin collar is spaced apart from the flat tube.
    Type: Application
    Filed: April 23, 2013
    Publication date: April 16, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Sangmu Lee, Takuya Matsuda, Akira Ishibashi, Takashi Okazaki
  • Patent number: 8978411
    Abstract: An outer surface of a cold-storage container (or a refrigerant tube) is provided with a plurality of protrusion portions or recess portions. A cooling air passage, in which air flows to cool a space to be cooled in a cold storage time and in a cold release time of the cold storage material, is provided to contact a surface of the refrigerant tube on a side opposite to the cold storage container bonded to the refrigerant tube. The refrigerant tubes and the cold storage container form therebetween a cold-storage side air passage by the protrusion portions or the recess portions, such that air flows in the cold-storage side air passage separated from the cooling air passage. For example, the cold-storage side air passage is provided with a slanting space that causes condensed water or ice generated in the cold storage time to be drained along the cold-storage side air passage.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 17, 2015
    Assignee: Denso Corporation
    Inventors: Atsushi Yamada, Seiji Inoue, Yoshio Miyata, Naoki Yokoyama, Etsuo Hasegawa, Jun Abei, Hiroshi Ishikawa, Aun Ota, Kouta Hagihara
  • Patent number: 8978410
    Abstract: A refrigerating system is provided in which a heat exchanging unit performs heat exchange between first and second evaporators, so that the first and second evaporators have similar temperatures, and so that an additional “pump-down” operation may be avoided, thereby reducing compressor losses due to discharge occurrences. Since the additional pump-down operation may be avoided, power consumption may be reduced, and reliability and efficiency of the system may be enhanced. Additionally, a backflow preventing unit for preventing backflow of refrigerant in an evaporator may not be required, thus further reducing fabrication cost and complexity.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Min-Kyu Oh, Gye-Young Song, Nam-Gyo Lee
  • Patent number: 8978264
    Abstract: A fuel cell system having an apparatus for gas drying that includes, but is not limited to at least one cooling element with at least one first surface and at least one detachment device. The cooling element is designed to be thermally connected to a heat sink and to come into contact with gas flowing past. The detachment device is movably held relative to the first surface and is designed to detach frozen water from the first surface.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: March 17, 2015
    Assignee: Airbus Operations GmbH
    Inventors: Ralf-Henning Stolte, Sebastian Mock, Johannes Lauckner
  • Patent number: 8973395
    Abstract: A cold storage heat exchanger includes multiple refrigerant tubes, a cold storage container that is bonded to the refrigerant tube and defines a compartment receiving a cold storage material, and an inner fin arranged inside of the cold storage container. The cold storage container has a portion that stops and fixes the inner fin, and the cold storage container has a space where air is sealed. The space of the cold storage container is located at an upper side of the member that stops and fixes the inner fin. Accordingly, a stress applied to the cold storage container in the expansion of the cold storage material can be reduced.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: March 10, 2015
    Assignee: Denso Corporation
    Inventors: Atsushi Yamada, Seiji Inoue, Yoshio Miyata, Naoki Yokoyama, Etsuo Hasegawa, Jun Abei
  • Patent number: 8973396
    Abstract: A cold storage heat exchanger includes multiple refrigerant tubes having therein refrigerant passages. The refrigerant tubes are arranged to provide a clearance therebetween. The cold storage heat exchanger further includes a cold storage container that is brazed with the refrigerant tube and defines a compartment receiving a cold storage material. The cold storage container has an open-hole portion at a brazed part with the refrigerant tube. Accordingly, efficiency of heat exchange by the cold storage heat exchanger can be improved.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: March 10, 2015
    Assignee: Denso Corporation
    Inventors: Atsushi Yamada, Seiji Inoue, Yoshio Miyata, Naoki Yokoyama, Etsuo Hasegawa, Jun Abei
  • Patent number: 8955579
    Abstract: There is provided a means for uniformly controlling the in-plane temperature of a semiconductor wafer at high speed in a high heat input etching process. A refrigerant channel structure in a circular shape is formed in a sample stage. Due to a fact that a heat transfer coefficient of a refrigerant is largely changed from a refrigerant supply port to a refrigerant outlet port, the cross sections of the channel structure is structured so as to be increased from a first channel areas towards a second channel areas in order to make the heat transfer coefficient of the refrigerant constant in the refrigerant channel structure. Thereby, the heat transfer coefficient of the refrigerant is prevented from increasing by reducing the flow rate of the refrigerant at a dry degree area where the heat transfer coefficient of the refrigerant is increased.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 17, 2015
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Takumi Tandou, Kenetsu Yokogawa, Masaru Izawa
  • Patent number: 8944152
    Abstract: A compact evaporator including a suction baffle system is provided for use in a refrigeration system. The suction baffle system includes a suction baffle and a passageway. The suction baffle includes a plurality of walls and is adjacent to the interior wall of shell. The passageway extends below one of the walls of the suction baffle toward the lower portion of the shell and is adjacent to the interior wall of the shell. A suction tube having an inlet is attached to the evaporator shell and the inlet is adjacent to the passageway and located partially below the suction baffle. The passageway minimizes the possibility of liquid carry-over in the suction tube that feeds into the compressor.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 3, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Satheesh Kulankara, Michael Lee Buckley, Mustafa Kemal Yanik
  • Patent number: 8943854
    Abstract: Disclosed is a heat exchanger of a plate type comprising an evaporator having at least one inlet and at least one outlet allowing a first medium to enter into and exit from the evaporator. The evaporator comprises a plurality of interconnected evaporation chambers disposed in parallel, having at least one common inlet and at least one common outlet allowing the first medium to enter into and exit from the evaporation chambers.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: February 3, 2015
    Assignee: Danfoss Qinbao (Hangzhou) Plate Heat Exchanger Company Limited
    Inventor: Lars Persson
  • Publication number: 20150027161
    Abstract: A heat exchanger includes a plurality of flattened pipes, a header collection pipe, and a plurality of fins joined to the flattened pipes. The flattened pipes are joined to the header collection pipe. A fluid flowing through an interior of the flattened pipes exchanges heat with air flowing outside the flattened pipes. The header collection pipe has a header collection pipe and a cover member. The header collection pipe body is disposed so that a longitudinal direction is vertically oriented. The cover member is disposed inside from an upper end of the header collection pipe body, and closes off an upper side of the header collection pipe body. The header collection pipe body has a pipe end section that extends upward past the cover member. A drainage part is formed in a part of the pipe end section.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 29, 2015
    Inventors: Yasutaka Ohtani, Yoshio Oritani, Takuya Kazusa, Masanori Jindou, Junichi Hamadate
  • Patent number: 8938988
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided that include multichannel tube configurations designed to promote flow of refrigerant within the multichannel tubes near the edges of the tubes that are contacted first by an external fluid. The tube configurations include flow paths of varying cross-sections, spacings, and sizes. Flow control mechanisms, such as inserts, blocking plates, sleeves, crimped sections, and crushed sections, may be employed with the flow paths to favor flow near the edges of the tubes that are contacted first by an external fluid.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: January 27, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Mustafa K. Yanik, William L. Kopko, Jose Ruel Yalung de la Cruz
  • Patent number: 8938989
    Abstract: A heat exchanger includes refrigerant tubes through which refrigerant flows, and cooling-medium tubes through which coolant of a vehicle-running electric motor flows. The refrigerant tubes and the cooling-medium tubes are alternately lamination-arranged. The heat exchanger further includes outside air passages between the refrigerant tubes and the cooling-medium tubes which are adjacent to each other, and outside air flows through the outside air passages. The heat exchanger further includes outer fins arranged in the outside air passages to be capable of transferring heat between the refrigerant tubes and the cooling-medium tubes. Accordingly, appropriate heat exchange can be performed between the refrigerant and the outside air, between the coolant and the outside air, and between the refrigerant and the coolant.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: January 27, 2015
    Assignee: Denso Corporation
    Inventor: Yoshiki Katoh
  • Publication number: 20140373570
    Abstract: Evaporator, notably for motor vehicle air-conditioning circuit. According to the invention, the evaporator (1), which comprises three layers—upstream (2), intermediate (3) and downstream (4)—through which there flows a coolant that enters the evaporator (1) via the intermediate layer (3) and leaves the evaporator via the upstream layer (2) to cool an air flow (A) passing in succession across said upstream (2), intermediate (3) and downstream (4) layers, comprises means (5E) for inducing a pressure drop between the outlet of the intermediate layer (3) and the inlet of the downstream layer (4).
    Type: Application
    Filed: September 13, 2012
    Publication date: December 25, 2014
    Inventors: Sylvain Moreau, Francois Busson, Regine Haller, Mohamed Yahia, Bertrand Nicolas
  • Publication number: 20140366573
    Abstract: A heat exchange tube for a refrigerant-flooded evaporator includes a tube body and a plurality of channels for conveying a cooling medium therethrough located in the tube body. One or more outer wall textural elements are included at the outer wall of the tube body to improve thermal energy transfer between the cooling medium and a volume of boiling refrigerant. A method of forming a heat exchange tube for a refrigerant-flooded evaporator includes urging a billet into an extrusion section and forming the billet into two tube halves including an outer wall and an inner wall having a plurality of channel halves. A textural element is formed at one or more of the outer wall and the inner wall via one or more rotating dies, and the two tube halves are joined to form the heat exchange tube.
    Type: Application
    Filed: November 28, 2012
    Publication date: December 18, 2014
    Inventors: Patrick Louis Clavette, Satyam Bendapudi, Jefferi J. Covington
  • Publication number: 20140360224
    Abstract: An evaporator heat exchanger is disclosed. The evaporator heat exchanger includes a bottom plate, a top plate, and at least one main plate between the bottom plate and the top plate. The at least one main plate includes a first face having one or more channels for flow of a first fluid along the first face and a second face opposite the first face having one or more channels for flow of a second fluid along the second face, wherein heat is exchanged between the first fluid and the second fluid through the main plate. Main plates adjacent to each other define an enclosed channel for fluid flow.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Michael R. Barone, Richard Rusich
  • Patent number: 8904819
    Abstract: An evaporator includes a vaporization chamber having a monomer inlet and a vapor outlet. There is a vapor nozzle in the vapor outlet. The evaporator also includes a collar positioned between the vaporization chamber and the vapor nozzle which increases the pressure in the evaporation chamber while the conductance through the nozzle is substantially unchanged.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Damien Boesch, Martin Rosenblum
  • Publication number: 20140338392
    Abstract: The present invention involves an evaporative chiller using a plate type string-screen-fill heat exchanger which is formed of a multiplicity of plate type string-screen-fills with string screens on their both sides. The hot water sprayed on the top perforated plate of the heat exchanger is imbibed into holes on the top plate by surface tension of strings suspending over the holes and then flows down on the surface of strings. During its flowing down on the surface of strings, the water is cooled through evaporation and convection mechanisms of water by contacting with air traveling transversely or slantly through the strings by means of a forced draft. The construction cost and electric consumption saving of the present invention are less than half cost of the current chiller and more than 30%, respectively. The fabrication method of the plate string-screen-fill heat exchanger is described in the present invention.
    Type: Application
    Filed: November 4, 2013
    Publication date: November 20, 2014
    Inventor: Chong Mook Park
  • Publication number: 20140331697
    Abstract: A non-flammable refrigerant mixture is disclosed. The non-flammable refrigerant mixture may include from 20 weight percent to 25.5 weight percent HFO-1234yf, (b) from 20 weight percent to 24.5 weight percent HFC-32, (c) from 24.5 weight percent to 30 weight percent HFC-125, (d) from 25.5 weight percent to 30 weight percent HFC-134a, and optionally (e) from about 0.0001 weight percent to 10 weight percent trans-HFO-1234ze. These refrigerant mixtures are useful as components in compositions also containing non-refrigerant components (e.g., lubricants), in processes to produce cooling, in methods for replacing refrigerants R-404A, R-507, R-407A, R-407C, R-407F and/or R-22, and in refrigeration apparatuses.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventors: BARBARA HAVILAND MINOR, CHARLES CLINTON ALLGOOD
  • Publication number: 20140331694
    Abstract: Embodiments are directed to receiving, by a device comprising a processor, an indication that an air conditioning unit should turn on, commanding, by the device, a valve to open a specified extent based on the received indication, and subsequent to the valve opening to the specified extent, powering-on a piece of equipment that has an impact on refrigerant flow in the air conditioning unit.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 13, 2014
    Applicant: Carrier Corporation
    Inventors: Eric B. Fraser, Arthur F. Friday, Jr., Michael R. Cote, Jing Ou, Mehmood Syed
  • Publication number: 20140318175
    Abstract: A heat exchanger comprises a first inlet port, a first outlet port longitudinally spaced apart from the first inlet port, a plurality of substantially parallel parting plates stacked along a no-flow axis, a plurality of first flow spaces, and a plurality of metering plates. The plurality of first flow spaces are defined between adjacent ones of at least some of the parting plates and provide communication between the first inlet port and the first outlet port. The plurality of metering plates are disposed across an upstream end of at least one of the first flow spaces. Each of the plurality of metering plates includes at least one metering aperture providing fluid communication between the first inlet port and the at least one first flow space.
    Type: Application
    Filed: April 30, 2013
    Publication date: October 30, 2014
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Michael Zager
  • Publication number: 20140311182
    Abstract: A falling film evaporator for a heating ventilation and air conditioning (HVAC) system includes an evaporator housing and a plurality of evaporator tubes located in the evaporator housing and arranged into one or more tube bundles. A volume of thermal energy transfer medium is flowed through the plurality of evaporator tubes. One or more support sheets located along a length of the plurality of evaporator tubes to position and support the plurality of evaporator tubes in the housing, the one or more support sheets including one or more vapor flow passages to allow flow of vapor refrigerant along a length of the evaporator.
    Type: Application
    Filed: April 23, 2014
    Publication date: October 23, 2014
    Applicant: Carrier Corporation
    Inventors: Marcel Christians, Satyam Bendapudi, Jack Leon Esformes
  • Publication number: 20140311703
    Abstract: An evaporator is used in an inclined state in which a first header tank is located on the lower side in relation to a second header tank. The leeward and windward header sections of the first header tank have compartments with which the furthest tube groups of leeward and windward tube rows communicate. The compartments are divided into upper and lower spaces by split flow control sections, and the upper and lower spaces communicate through refrigerant passage holes formed in the split flow control sections. The total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the lower side in the inclined state is smaller than the total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the upper side in the inclined state.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 23, 2014
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventor: Motoyuki TAKAGI
  • Publication number: 20140311702
    Abstract: An evaporator is used in an inclined state in which a first header tank is located on the upper side in relation to a second header tank. The leeward and windward header sections of the first header tank have compartments with which the furthest tube groups of leeward and windward tube rows communicate. The compartments are divided into upper and lower spaces by split flow control sections, and the upper and lower spaces communicate through refrigerant passage holes formed in the split flow control sections. The total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the lower side in the inclined state is smaller than the total cross sectional area of the refrigerant passage holes of the split flow control section of the compartment located on the upper side in the inclined state.
    Type: Application
    Filed: April 9, 2014
    Publication date: October 23, 2014
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventor: Motoyuki TAKAGI
  • Publication number: 20140305159
    Abstract: In a heat exchanger, a refrigerant side header tank and a coolant side header tank which are connected with refrigerant tubes and coolant tubes include a plate header member, a communication intermediate plate member, a blocking intermediate plate member, and a tank header member. The communication intermediate plate member includes first and second fluid communication holes through which refrigerant and coolant flow, respectively. In this situation, with a simple configuration in that a part of the first and second fluid communication holes is blocked by the blocking intermediate plate member, a communication state between both tubes and internal spaces of the header tanks is regulated.
    Type: Application
    Filed: November 28, 2012
    Publication date: October 16, 2014
    Inventors: Yoshiki Katoh, Mitsuyoshi Saito, Kenji Yamada
  • Patent number: 8826684
    Abstract: A rotating valve includes an inlet region, an outlet region, and a switching region having a switching member that can be rotated about an axis. In a first position of the switching member the plurality of inlets are connected to the plurality of outlets in a first association, and in a second position of the switching member the plurality of inlets are connected to the plurality of outlets in a second association. The switching member has a plurality of openings through which the fluid flows flow axially in the direction of the rotation axis and are moved together with the switching member. The openings alternately cover a plurality of stationary, axially directed openings in the course of the rotation of the switching member. Different associations of the inlets with the outlets are carried out by the alternating covering of the axially directed openings.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: September 9, 2014
    Assignee: Behr GmbH & Co. KG
    Inventor: Roland Burk
  • Patent number: 8826969
    Abstract: An inlet arrangement (1) for use in plate heat exchangers (2) is disclosed. The arrangement comprises an element with a dispersion opening (6) for arrangement in an inlet (5) in a plate exchanger. The inlet arrangement (1) is arranged to form a mainly fitting cylinder wall when introduced in the inlet (5). The cylinder wall comprises at least one opening (6) which extends partly or fully along the length of the inlet (5) and is sealingly arranged towards the inlet (5) of the plate heat exchanger. Furthermore, the opening (6) is oriented towards one side at an angle from the perpendicular. The use of such inlet arrangement (1) is also disclosed.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: September 9, 2014
    Assignee: Institutt for Energiteknikk
    Inventors: Tove Risberg, Stein Rune Nordtvedt, Svein Grandum, Bjarne Horntvedt
  • Publication number: 20140245777
    Abstract: A heat exchanger includes a heat exchange portion in which at least tubes of refrigerant tubes or coolant tubes are stacked and at least one of refrigerant or coolant exchanges heat with air. An air passage is formed in a space formed between tubes of the refrigerant tubes and the coolant tubes which are adjacent to each other. An upstream heat exchange portion located on an upstream side in a flow direction of air and a downstream heat exchange portion located downstream of the upstream heat exchange portion in the flow direction of air are provided as the heat exchange portion. A ratio of the number of the refrigerant tubes to the total number of tubes of the upstream heat exchange portion is different from a ratio of the number of the refrigerant tubes to the total number of tubes of the downstream heat exchange portion.
    Type: Application
    Filed: April 3, 2012
    Publication date: September 4, 2014
    Applicant: DENSO CORPORATION
    Inventors: Yoshiki Katoh, Mitsuharu Inagaki, Mitsuyoshi Saitou, Ryohei Sugimura
  • Patent number: 8806889
    Abstract: A refrigerating cycle unit includes an ejector and a heat exchanger defined by layering a plurality of plates. Each of the plates has a refrigerant passage, and the refrigerant passages are connected by a header tank in a layering direction of the plates. At least two of the plates are fix plates having a fix portion to fix the ejector, and a communication portion through which the ejector and the header tank communicate with each other. The ejector is arranged between the fix portions of the fix plates in the layering direction, so as to be integrated with the heat exchanger.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: August 19, 2014
    Assignee: Denso Corporation
    Inventors: Aun Ota, Tomohiko Nakamura, Hideaki Sato
  • Patent number: 8806890
    Abstract: An evaporator having a plurality of flat refrigerant flow tubes disposed in parallel such that their width direction coincides with an air flow direction and they are spaced from one another. Air-passing clearances are formed between adjacent refrigerant flow tubes. Cool storage material containers filled with a cool storage material are disposed in some of the air-passing clearances, and each cool storage material container is brazed to the refrigerant flow tubes located on opposite sides thereof. Corrugated fins are disposed in the remaining air-passing clearances, and each fin is brazed to the refrigerant flow tubes located on opposite sides thereof. Each cool storage material container includes a plurality of convex portions projecting outward from opposite side surfaces thereof, and projecting ends of the convex portions are joined to the corresponding refrigerant flow tubes.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 19, 2014
    Assignee: Keihin Thermal Technology Corporation
    Inventor: Motoyuki Takagi
  • Publication number: 20140202203
    Abstract: A refrigerant evaporator includes a shell having a refrigerant inlet and a refrigerant outlet, and a plurality of tubes disposed within the shell and carrying a process fluid. One embodiment includes at least a first plurality of the tubes are immersed in liquid refrigerant within the shell, and at least a second plurality of the tubes are partially immersed in liquid refrigerant and partially surrounded by gaseous refrigerant. The refrigerant evaporator also includes a baffle positioned adjacent the first plurality of tubes and immersed in the liquid refrigerant to displace the liquid refrigerant.
    Type: Application
    Filed: March 26, 2014
    Publication date: July 24, 2014
    Inventors: Jon Phillip Hartfield, Harry Kenneth Ring, Michael William Groen
  • Patent number: 8783057
    Abstract: A refrigerant distributor is described and which includes a tank defining an internal cavity for receiving a source of refrigerant; an inlet conduit for delivering the source of the refrigerant to the internal cavity of the tank; a contaminant collection container coupled in fluid receiving relation relative to the internal cavity of the tank and in disposal fluid receiving relation relative to the inlet conduit; and a plurality of refrigerant distributor conduits coupled in fluid flowing relation relative to the internal cavity of the tank and which have a multiplicity of apertures having variable diametral dimensions and which facilitate a variable flow of the source of refrigerant out through the refrigerant distributor conduits as the volume of the refrigerant in the tank increases.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: July 22, 2014
    Assignee: Colmac Coil Manufacturing, Inc.
    Inventor: Bruce I. Nelson
  • Publication number: 20140190195
    Abstract: The invention utilizes concentrated solar energy in a novel air conditioning system which includes storage capabilities. The refrigerant circuit “high” pressure side is comprised of multiple solar concentrators placed between two positive rotary valves. The “low” pressure side is compromised of the evaporator coil with expansion valve. The refrigerant is confined between the two rotary valves. As solar energy is absorbed into the refrigerant, the pressure and temperature rise. The two rotary valves are then caused to rotate. With rotation, the refrigerant is moved through the circuit. The circuit also includes a condenser to give up heat and an evaporator/expansion valve in which temperature drops with the expanding gas. In addition, this system places the evaporator in a water tank. The water is made cold by conduction with the evaporator and serves as a storage medium. All energy absorbed is converted to cold and stored and utilized as required.
    Type: Application
    Filed: February 27, 2014
    Publication date: July 10, 2014
    Inventor: Ralph Muscatell
  • Patent number: 8756953
    Abstract: The device according to the invention for the cooling of articles, comprising at least one channel which can be connected to a first coolant source such that a first stream of a first coolant can flow through the channel, the articles to be cooled being introducible into the stream, is distinguished in that at least one cross-sectional stabilizer for stabilizing the cross section of the at least one channel is formed. The device according to the invention advantageously allows the defined cooling of articles, in particular the freezing of drops of a liquid or pasty material, in particular of liquid or pasty foods. In particular, a deformation, such as warping, of the channels on account of pronounced temperature gradients and/or temperature transients is effectively reduced. Thus, even after cooling-down operations, uniform cooling conditions can be ensured.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: June 24, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Robert Taylor
  • Patent number: 8756949
    Abstract: Cooling device with a cooling unit connected to a cooling means for providing cooled air to the surroundings and which is located over an area for arranging merchandise to be refrigerated. The device includes a frame structure to be suspended freely over a merchandising area, with the cooling unit being arranged in the frame structure together with the further parts of a refrigerating unit.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: June 24, 2014
    Assignee: Envent AS
    Inventors: Kurt Steinar Nyheim, Jan Ragnar Stokke