Plural Distinct Sections Patents (Class 62/524)
  • Patent number: 10161655
    Abstract: Refrigeration apparatus R that includes a refrigerant circuit composed of compressor 11, gas cooler 28, electric expansion valve 39, and evaporator 41 includes: electric expansion valve 33; tank 36; split heat exchanger 29; electric expansion valve 43; electric expansion valve 47; auxiliary circuit 48; main circuit 38; low-pressure sensor 51; and control apparatus 57, in which control apparatus 57 regulates the pressure of the refrigerant after the refrigerant flows out of tank 36 but before flows into electric expansion valve 39 to be a first constant pressure when the pressure detected by low-pressure sensor 51 is smaller than a specified pressure, and regulates the pressure of the refrigerant to be a second constant pressure smaller than the first constant pressure when the pressure detected by low-pressure sensor 51 is larger than the specified pressure.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: December 25, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yusuke Kurata, Kazuhiko Mihara
  • Patent number: 9897355
    Abstract: A refrigeration apparatus uses R32 as refrigerant, and includes a compressor, a condenser, an expansion mechanism, an evaporator, a branch flow channel branching from a main refrigerant channel joining the condenser and the evaporator, a first opening adjustable valve disposed along the branch flow channel, an injection heat exchanger, a first injection channel, a refrigerant storage tank disposed along the main refrigerant channel, and a second injection channel. The injection heat exchanger exchanges heat between refrigerant in the main refrigerant channel and refrigerant passing through the first opening adjustable valve. The first injection channel guides refrigerant that flows in the branch flow channel and that exits from the injection heat exchanger to the compressor or the suction passage. The second injection channel guides a gas component of refrigerant accumulated inside the refrigerant storage tank to the compressor or the suction passage.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: February 20, 2018
    Assignee: Daikin Industries, Ltd.
    Inventors: Satoshi Kawano, Shinya Matsuoka, Masahiro Oka
  • Patent number: 9683764
    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: Grant
    Filed: September 13, 2012
    Date of Patent: June 20, 2017
    Assignee: VALEO SYSTEMES THERMIQUES
    Inventors: Sylvain Moreau, Francois Busson, Regine Haller, Mohamed Yahia, Bertrand Nicolas
  • Patent number: 9121643
    Abstract: In an evaporator having plate-type construction, a plurality of stack plates are stacked atop one another such that a first fluid passage for a first fluid as a refrigerant and a second fluid passage for a second fluid as a coolant is provided and are formed between the stack plates. The stack plates have first apertures for supply and return of the first fluid, second apertures for supply and return of the second fluid, a first inlet opening and outlet opening for entry and exit of the first fluid, a second inlet opening and outlet opening for entry and exit of the second fluid, and an expansion valve for the first fluid that is built onto or integrated into the rest of the heat exchanger. The evaporator incorporates a shutoff unit for the first fluid that is built onto or integrated into the rest of the heat exchanger.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: September 1, 2015
    Assignee: MAHLE Behr GmbH & Co. KG
    Inventors: Bernd Schaefer, Markus Wesner
  • Publication number: 20150143826
    Abstract: A refrigeration system includes: a compressor arrangement for compressing gaseous refrigerant from a first pressure to a second pressure, wherein the second pressure comprises a condensing pressure; a first condenser evaporator system and a second condenser evaporator system, where in the first condenser evaporator system and the second condenser evaporator system are arranged in parallel and each comprises: (1) a condenser for receiving gaseous refrigerant at a condensing pressure and condensing the refrigerant to a liquid refrigerant, where in the condenser comprises a gaseous refrigerant inlet, a plate and a liquid refrigerant outlet, and a water delivery system for delivering water to an outside of the plate for removing heat from the plate; (2) a controlled pressure receiver for holding the liquid refrigerant from the condenser; and (3) an evaporator for evaporating the liquid refrigerant from the controlled pressure receiver to form the gaseous refrigerant; a first gaseous refrigerant feed line for feed
    Type: Application
    Filed: October 31, 2014
    Publication date: May 28, 2015
    Inventor: John Lingelbach
  • Publication number: 20150121949
    Abstract: A refrigeration cycle of a refrigerator includes a first refrigeration cycle in which a first refrigerant flows along a first refrigerant tube and a second refrigeration cycle in which a second refrigerant flows along a second refrigerant tube. First and second compressors compress each of the first and second refrigerants, and a combined condenser condenses each of the first and second refrigerants. First and second expansion valves phase-change each of the first and second refrigerants passing through the combined condenser, and first and second evaporators change the refrigerant passing through each of the first and second expansion valves into a low-temperature low-pressure gaseous refrigerant.
    Type: Application
    Filed: November 3, 2014
    Publication date: May 7, 2015
    Inventors: JUYEONG HEO, KYEONGYUN KIM, KYUNGSEOK KIM
  • Publication number: 20150075215
    Abstract: A heat exchanger is disclosed that includes a plurality of parallel refrigerant paths, and a distributor for delivering refrigerant to the plurality of parallel refrigerant paths, the distributor defining a flow restrictor at an entrance to each refrigerant path, wherein the flow restrictors are configured to keep the distributor pressurized at a predetermined level and thereby maintain single phase refrigerant flow into each of the parallel refrigerant paths. The flow restrictors further induce even flow distribution by providing choked flow to each refrigerant path.
    Type: Application
    Filed: January 22, 2014
    Publication date: March 19, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventor: Thomas E. Banach
  • 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: 8978741
    Abstract: A device for reducing temperature variation in a plenum includes at least one pipe and a plurality of sumps containing a fluid operable to vary between a liquid state and a gaseous state depending upon a temperature of the fluid. The plurality of sumps are positioned at various locations within the plenum and the at least one pipe is in fluid communication with the plurality of sumps. In addition, the fluid, in the gaseous state, is caused to move through the at least one pipe and condense, thereby reducing the temperature at the location of the sump where the fluid was vaporized and thereby reducing temperature variation in the plenum.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: March 17, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ratnesh K. Sharma, Cullen E. Bash, Chandrakant D. Patel, Abdlmonem Beitelmal
  • 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: 8931305
    Abstract: An evaporator unit comprising an evaporator, an internal heat exchanger defining a high pressure flow passage and a low pressure flow passage, an expansion device connected downstream of the high pressure flow passage of the internal heat exchanger and upstream of the evaporator. The internal heat exchanger is attached to the evaporator. With the above structure, the internal heat exchanger can utilize the remaining cooling capability of the refrigerant exiting from the evaporator for its greatest benefit.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: January 13, 2015
    Assignee: DENSO International America, Inc.
    Inventors: Bryan Styles, Kwangtaek Hong, Bradley Brodie
  • Publication number: 20140318176
    Abstract: An evaporator with a cool storage function includes a plurality of refrigerant flow tubes, fins, and cool storage material containers. Each of the cool storage material containers has a longitudinal direction and includes a third side wall and a fourth side wall opposite to the third side wall. The third side wall and the fourth side wall have first convex portions and second convex portions, respectively. The cool storage material containers are provided in a second part of spaces such that the first convex portions contact a first side wall of one of the plurality of refrigerant flow tubes and the second convex portions contact a second side wall of another of the plurality of refrigerant flow tubes. The third side wall and the fourth side wall have a concavo-convex shape in a cross-section perpendicular to the longitudinal direction.
    Type: Application
    Filed: July 9, 2014
    Publication date: October 30, 2014
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventor: Motoyuki TAKAGI
  • Patent number: 8863550
    Abstract: A cool storage material container is formed by brazing together peripheral edge portions of two aluminum plates. A cool storage material for storing cool is charged into a cool storage material accommodation space. The cool storage material container has a seal portion provided by closing a thermal storage material charging inlet which is formed at the peripheral edge portions of the two aluminum plates and is used to charge the cool storage material into the cool storage material accommodation space. The seal portion includes two outward protrusions which are formed by pressing and collapsing the thermal storage material charging inlet such that they project outward from the two aluminum plates and are brought into close contact with each other. The outward protrusions are bonded together by an anaerobic adhesive and are bent in the thickness direction of the aluminum plates such that their bent portions have a V-shaped cross section.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 21, 2014
    Assignee: Keihin Thermal Technology Corporation
    Inventors: Naohisa Higashiyama, Osamu Kamoshida, Tatsuhiro Mizo
  • Publication number: 20140260341
    Abstract: A cooling system includes a first heat exchanger, an evaporator coupled to a thermal load of an aircraft. first and second cooling circuits coupled to the heat exchanger, the first and second cooling circuits selectable via a set of cooling circuit valves that are arranged to direct a refrigerant through the first circuit, the second circuit, or both the first and second circuits based on air passing through the first heat exchanger at ambient conditions of the aircraft, and a receiver configured to accumulate reserve refrigerant to provide flexibility in system operation as the cooling system operates in sub-critical, trans-critical, and super-critical modes of operation.
    Type: Application
    Filed: December 30, 2013
    Publication date: September 18, 2014
    Applicants: Rolls-Royce North American Technologies, Inc., Rolls-Royce Corporation
    Inventors: Igor Vaisman, Patrick C. Sweeney
  • 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
  • Patent number: 8794028
    Abstract: A refrigeration system including a refrigerant circuit with a plurality of evaporator paths and a distributor (5) for distributing refrigerants to the evaporator paths. The distributor including a controllable valve (14) for each evaporator path. The refrigeration system can be operated by using a distributor (5), which includes a housing (11) and a rotor rotatably mounted in the housing (11) and at least one radially oriented projection (15) on the circumference of the rotor, which interacts respectively with a valve element of a valve.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: August 5, 2014
    Assignee: Danfoss A/S
    Inventors: Hans Kurt Petersen, Allan Juhl Moustgaard, Joergen Holst
  • Publication number: 20140196498
    Abstract: Evaporative heat transfer system. The system includes a substrate and a plurality of substantially parallel, spaced-apart ridges extending from the substrate forming vertical liquid manifolds therebetween. A nanoporous membrane is supported on the ridges and a pump delivers a dielectric fluid across the ridges. The fluid is drawn through the liquid manifolds via capillarity provided by the nanoporous membrane and evaporates to dissipate heat flux through the substrate. A preferred dielectric fluid is pentane. It is preferred that membrane porosity vary across the membrane to tailor thermal resistances to limit temperature rises.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Inventors: Rong Xiao, Rishi Raj, Shankar Narayanan, Evelyn N. Wang, Ryan Enright, Shalabh Chandra Maroo
  • Patent number: 8769970
    Abstract: A refrigerated case (20) has a housing containing an interior volume (36) for storing items. Along an air flow path (510) through the case, a refrigerant-to-air heat exchanger (60) has an evaporator section (112) and a reheat section (114). A preconditioning section (110) may be upstream of the evaporator section (112) and the evaporator section is upstream of the reheat section (114). Along a refrigerant flow path (520), the reheat section (114) is downstream of the preconditioning section (110) (if any) and upstream of the evaporator section (112) and an expansion device (62) is between the reheat (114) and evaporator (112) sections.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: July 8, 2014
    Assignee: Hill Phoenix, Inc.
    Inventors: Kwok K. Fung, Neelkanth S. Gupte
  • Publication number: 20140182330
    Abstract: An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes and at least one cool storage material container. The at least one cool storage material container includes a container main body and a plurality of convex portions. The container main body has a first wall and a second wall opposite to the first wall which are substantially parallel to a plane including a longitudinal direction and a width direction. The first wall and the second wall are connected to adjacent refrigerant flow tubes among the plurality of refrigerant flow tubes, respectively. The plurality of convex portions are provided on the first wall and the second wall to protrude outwardly from the first wall and the second wall. Two adjacent convex portions among the plurality of convex portions form each of condensed water drain passages therebetween.
    Type: Application
    Filed: December 25, 2013
    Publication date: July 3, 2014
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Osamu KAMOSHIDA, Takashi HIRAYAMA
  • Publication number: 20140174121
    Abstract: An evaporator with a cool storage function includes a plurality of flat refrigerant flow tubes which spaced apart from one another in a thickness direction of the plurality of refrigerant flow tubes to form spaces among the plurality of flat refrigerant flow tubes. The outer fins are disposed in a first part of the spaces and joined to the plurality of refrigerant flow tubes. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces other than the first part. The inner fin is disposed within the cool storage material container and has crest portions extending along the longitudinal direction, trough portions extending along the longitudinal direction, and connection portions connecting the crest portions and the trough portions.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Takashi HIRAYAMA, Osamu KAMOSHIDA
  • Patent number: 8689582
    Abstract: A refrigeration system includes a refrigerant circuit with a plurality of evaporator paths and a distributor for distributing refrigerant. The distributor includes a housing and a controllable valve for each evaporator path. The refrigeration system is operated by using a distributor including a magnet arrangement for controlling the valves.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: April 8, 2014
    Assignee: Danfoss A/S
    Inventors: Michael Birkelund, Hans Kurt Petersen, Sune Prytz
  • Patent number: 8661845
    Abstract: A heat exchanger includes a heat exchanging section for performing heat exchange between a refrigerant and a cooling medium and a passage section. The passage section includes a first passage and a second passage for supplying the refrigerant to the heat exchanging section and a supply passage for supplying the refrigerant to the first passage and the second passage. The first passage and the second passage define a first opening portion and a second opening portion opening at an end of the supply passage. A minimum distance between an opening edge of the first opening portion and an inner surface of the supply passage is equal to a minimum distance between an opening edge of the second opening portion and the inner surface of the supply passage.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: March 4, 2014
    Assignee: Denso Corporation
    Inventors: Thuya Aung, Nobuharu Kakehashi, Tomohiko Nakamura, Hideaki Sato
  • Publication number: 20140007600
    Abstract: An evaporator includes an inlet manifold, an outlet parallel to the inlet manifold, and a collection manifold parallel and adjacent to the outlet manifold. First flow conduits extend from the inlet manifold to the collection manifold, and at least one second flow conduit extends from the collection manifold to the outlet manifold. The evaporator can be housed within an enclosure to provide a cased evaporator. Air is conditioned by transferring heat from the air to refrigerant as the air passes through the evaporator. The refrigerant is received from outside the enclosure into the inlet manifold, and is directed through first and second refrigerant passes to receive heat from the air. The flow of refrigerant is received from the second pass into a collection manifold, is transferred to an outlet manifold, and is removed from the enclosure.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Inventors: Mark W. Johnson, Eric P. Steinbach, George A. Baker, Bradley C. Engel, Gregory T. Kohler
  • Publication number: 20130312453
    Abstract: Provided is an evaporator including a flow part having a refrigerant flow therein, separately from a first compartment and a second compartment to improve a refrigerant channel structure, in a double evaporator in which a refrigerant flows in a first column and a second column, respectively, thereby reducing the number of four inlets and outlets that is disposed in the first column and the second column, respectively.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 28, 2013
    Applicant: HALLA CLIMATE CONTROL CORP.
    Inventors: Young-Ha Jeon, Jun Young Song, Yong Jun Jee, Kwang Hun Oh, Duck-Ho Lee, Jung Sam Gu, Hong-Young Lim
  • Publication number: 20130312454
    Abstract: Provided is an evaporator including a flow part having a refrigerant flow therein, separately from a first compartment and a second compartment to improve a refrigerant channel structure, in a double evaporator in which a refrigerant flows in a first column and a second column, respectively, thereby reducing the number of four inlets and outlets that is disposed in the first column and the second column, respectively.
    Type: Application
    Filed: April 30, 2013
    Publication date: November 28, 2013
    Applicant: HALLA CLIMATE CONTROL CORP.
    Inventors: Young-Ha Jeon, Jun Young Song, Hong-Young Lim, Jung Sam Gu, Kwang Hun Oh
  • Patent number: 8561427
    Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and multi-slab heat exchangers are provided that include fluid connections for transmitting fluid between groups of tubes. The fluid connections may include generally tubular members fluidly connected to manifold sections. The fluid connections also may include partitioned manifolds containing tubes of different heights. Multichannel tubes are also provided that include a bent section configured to locate a flow path near a leading edge of a tube within one section and near a trailing edge of the tube within another section.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: October 22, 2013
    Assignee: Johnson Controls Technology Company
    Inventors: John T. Knight, William L. Kopko, Stephen B. Pickle, Jose Ruel Yalung de la Cruz, Tony Clive Coleman, Mahesh Valiya-Naduvath
  • Publication number: 20130255307
    Abstract: An evaporator system that includes: a first evaporator coil at a first evaporator temperature and pressure; a second evaporator coil at a second evaporator temperature and pressure that is less than the first evaporator temperature and pressure where the first evaporator and second evaporator are configured to be thermally disjointed; and a plurality of thermally conductive spaced apart evaporator fins having a plurality of spaced apart thermal break portions positioned between the first evaporator coil and the second evaporator coil that thermally disjoin the first evaporator and the second evaporator.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Applicant: Whirlpool Corporation
    Inventors: Steven Kuehl, Nihat Cur, Guolian Wu
  • Publication number: 20130145793
    Abstract: A direct expansion evaporator includes an inner guiding duct defining a feeding channel for guiding raw material, and an outer guiding duct enclosing the inner guiding duct therewithin to form a heat exchange channel between the outer and inner guiding ducts for guiding refrigerant flowing along the heat exchange channel to heat-exchange with the raw material along the feeding channel, wherein a helix indention is formed at the outer guiding duct to form the heat exchange channel partitioned by a helix partition, wherein a peak of the helix partition is biased against an outer surrounding wall of the inner guiding duct to conceal the heat exchange channel along the inner guiding duct in a weld-less manner.
    Type: Application
    Filed: February 13, 2013
    Publication date: June 13, 2013
    Inventors: Lingyu Dong, Chundong Dong
  • Publication number: 20130111935
    Abstract: A system (200; 250; 270) has a compressor (22), a heat rejection heat exchanger (30), first (38) and second (202) ejectors, first (64) and second (220) heat absorption heat exchangers, and a separator. The ejectors each have a primary inlet (40, 204) coupled to the heat rejection exchanger to receive refrigerant. A second heat absorption heat exchanger (220) is coupled to the outlet of the second ejector to receive refrigerant. The separator (48) has an inlet (50) coupled to the outlet of the first ejector to receive refrigerant from the first ejector. The separator has a gas outlet (54) coupled to the secondary inlet (206) of the second ejector to deliver refrigerant to the second ejector. The separator has a liquid outlet (52) coupled to the secondary inlet (42) of the first ejector via the first heat absorption heat exchanger to deliver refrigerant to the first ejector.
    Type: Application
    Filed: July 20, 2011
    Publication date: May 9, 2013
    Applicant: CARRIER CORPORATION
    Inventors: Jiang Zou, Hongsheng Liu, Parmesh Verma Verma, Thomas D. Radcliff, Jinliang Wang
  • Publication number: 20130104589
    Abstract: An air conditioning system has one expansion valve supplying refrigerant to two evaporators. A vapor quality of a refrigerant has an initial value at a primary inlet of a primary evaporator, and has a resultant value at the primary outlet. The primary evaporator has a bypass inlet at a first location where the vapor quality of the refrigerant is less than about 80% of the resultant value. A secondary evaporator has a secondary inlet receiving a bypass portion of the metered flow of refrigerant split-off at a second location of the primary evaporator between the first location and the expansion valve. The secondary outlet is connected to the bypass inlet. Thus, cooling can be achieved for two different zones using only one expansion valve.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Steven L. Lambert
  • Publication number: 20130086938
    Abstract: A cool storage material container is formed by brazing together peripheral edge portions of two aluminum plates. A cool storage material for storing cool is charged into a cool storage material accommodation space. The cool storage material container has a seal portion provided by closing a thermal storage material charging inlet which is formed at the peripheral edge portions of the two aluminum plates and is used to charge the cool storage material into the cool storage material accommodation space. The seal portion includes two outward protrusions which are formed by pressing and collapsing the thermal storage material charging inlet such that they project outward from the two aluminum plates and are brought into close contact with each other. The outward protrusions are bonded together by an anaerobic adhesive and are bent in the thickness direction of the aluminum plates such that their bent portions have a V-shaped cross section.
    Type: Application
    Filed: September 13, 2012
    Publication date: April 11, 2013
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Naohisa Higashiyama, Osamu Kamoshida, Tatsuhiro Mizo
  • Publication number: 20130061630
    Abstract: In an evaporator having plate-type construction, a plurality of stack plates are stacked atop one another such that a first fluid passage for a first fluid as a refrigerant and a second fluid passage for a second fluid as a coolant is provided and are formed between the stack plates. The stack plates have first apertures for supply and return of the first fluid, second apertures for supply and return of the second fluid, a first inlet opening and outlet opening for entry and exit of the first fluid, a second inlet opening and outlet opening for entry and exit of the second fluid, and an expansion valve for the first fluid that is built onto or integrated into the rest of the heat exchanger. The evaporator incorporates a shutoff unit for the first fluid that is built onto or integrated into the rest of the heat exchanger.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 14, 2013
    Inventors: Bernd SCHAEFER, Markus Wesner
  • Publication number: 20130047663
    Abstract: An evaporator with a cool storage function includes flat refrigerant flow tubes, a cool storage material container disposed in at least one of all air-passing clearances each formed between adjacent refrigerant flow tubes, and an inner fin disposed in the cool storage material container. Each of left and right side walls of the cool storage material container has a contact portion in contact with the inner fin and a noncontact portion not in contact with the inner fin. In an overlap region where the left and right side walls of the cool storage material container overlap with the corresponding refrigerant flow tubes when the container is viewed from the left side or right side thereof, the area of the contact portion of each of the left and right side walls is greater than the area of the noncontact portion of each of the left and right side walls.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATION
    Inventors: Osamu Kamoshida, Naohisa Higashiyama
  • Publication number: 20120291987
    Abstract: In a system for a motor vehicle for heating and/or cooling a battery and a motor-vehicle interior, comprising a coolant circuit which is coupled thermally to the battery, a refrigerating circuit with a condenser, a compressor, a first evaporator for cooling the motor-vehicle interior and a second evaporator for cooling the battery. The second evaporator is thermally coupled to the coolant circuit via an evaporator heat exchanger and a surrounding-air heat exchanger is coupled thermally to the coolant circuit for the transmission of waste heat of the battery to the surrounding air. The waste heat of the battery is used to heat the motor-vehicle interior. The evaporator heat exchanger is provided with at least one device for transmitting heat from the evaporator heat exchanger to the surrounding air and/or the motor-vehicle interior, for transmitting waste heat of the battery to the surrounding air and/or the motor-vehicle interior.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 22, 2012
    Inventors: Thomas HIMMER, Markus WESNER
  • Publication number: 20120279252
    Abstract: A modular compressed-gas dryer including in series: an inlet module, a precooler/reheater module, an evaporator module, and a sump module. The modules form columns where at least one column has a filtration chamber. Further provided are a gas outlet and gastight seals between modules. The system creates a first and second set of heat transfer passages where refrigerant passes through the second set in a heat exchange relationship in a direction perpendicular to incoming gas passing in the first set. The filtration chamber conducts chilled gas from the first set to a third set of heat transfer passages. The third set extends through the precooler/reheater in heat exchange relationship with the first set. Chilled gas passes in heat exchange relationship in a direction perpendicular to the incoming gas so that the incoming gas chilled in the evaporator exchanges heat with the incoming gas in the precooler/reheater.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 8, 2012
    Inventors: John A. Carlin, Allan Hoerner
  • Patent number: 8302427
    Abstract: An evaporator includes two heat exchangers including an entry-side heat exchanger and an exit-side heat exchanger which are arranged opposite each other. The entry-side heat exchanger has a first path, a second path, and a third path, and the exit-side heat exchanger has a fourth path, a fifth path, and a sixth path. The sectional area of heat exchange passages of the first path in which refrigerant from an entry firstly flows downward is set smaller than the sectional area of heat exchange passages of the fifth path in which the refrigerant lastly flows downward. The sectional area of heat exchange passages of the sixth path in which the refrigerant to an exit lastly flows upward is set smaller than the sectional area of heat exchange passages of the second path in which the refrigerant firstly flows upward.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: November 6, 2012
    Assignee: Calsonic Kansei Corporation
    Inventor: Satoshi Kamimura
  • Publication number: 20120272679
    Abstract: An evaporator having a manifold and a plurality of refrigerant tubes extending downward in the direction of gravity from the manifold. The evaporator includes at least one PCM housing engaging the upper portion of the refrigerant tube for storing a phase change material. When operating in a first operating mode, heat is transferred from the phase change material to the refrigerant to freeze and cool the phase change material. When operating in a second operating mode, heat is transferred from the refrigerant to the frozen phase change material to condense the refrigerant. The condensed refrigerant falls downwardly through the tubes and receives heat from a flow of air to cool the air and evaporate the refrigerant. The evaporated refrigerant rises upwardly back to the low pressure of the cold manifold.
    Type: Application
    Filed: April 20, 2012
    Publication date: November 1, 2012
    Applicant: DELPHI TECHNOLOGIES, INC.
    Inventors: GARY SCOTT VREELAND, EDWARD WOLFE, IV, SCOTT B. LIPA, PRASAD S. KADLE
  • Publication number: 20120255323
    Abstract: An air conditioner is provided. The air conditioner may include a compressor that compresses a refrigerant, an outdoor heat-exchanger that heat-exchanges with the refrigerant discharged from the compressor according to a first operation mode, an indoor heat-exchanger that heat-exchanges with the refrigerant discharged from the compressor according to a second operation mode, and an expander that decompresses the refrigerant passing through the outdoor heat-exchanger or the indoor heat-exchanger. The expander may include a first decompression portion disposed at an outlet side or an inlet side of the outdoor heat-exchanger, the first decompression portion having a first inner diameter, and a second decompression portion connected to the first decompression portion in series, the second decompression portion having a second inner diameter greater than the first inner diameter.
    Type: Application
    Filed: March 13, 2012
    Publication date: October 11, 2012
    Inventors: Juhyok KIM, Hanchoon Lee, Hongseong Kim, Samchul Ha, Sangyeul Lee
  • Patent number: 8276401
    Abstract: An evaporator includes a refrigerant inlet header section, a refrigerant outlet header section, and a refrigerant circulation path connecting the two header sections. A refrigerant inlet-outlet member composed of a first plate, a second plate, and an intermediate plate is joined to the two header sections. The refrigerant inlet-outlet member has an inflow channel whose one end communicates with the refrigerant inlet of the refrigerant inlet header section and whose other end is opened to a rear edge of the refrigerant inlet-outlet member, and an outflow channel whose one end communicates with the refrigerant outlet of the refrigerant outlet header section and whose other end is opened to the rear edge. The first and second plates each have inflow-channel-forming and outflow-channel-forming outward swelled portions. Cutouts and a through hole are formed in the intermediate plate such that the inflow channel and the outflow channel cross each other.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 2, 2012
    Assignee: Showa Denko K.K.
    Inventors: Naohisa Higashiyama, Hokuto Mine, Motoyuki Takagi
  • Publication number: 20120198882
    Abstract: An evaporator includes a pair of header tanks spaced from each other in a vertical direction; a plurality of flat heat exchange tubes 45 which are disposed between the two header tanks such that their width direction coincides with a front-rear direction and they are spaced from one another in a left-right direction, opposite ends portions of the flat heat exchange tubes being connected to the corresponding header tanks; and corrugated fins 5 each disposed between adjacent heat exchange tubes 45. Each of left and right portions of front and rear end walls 45a of each heat exchange tube 45 has a straight slope portion 55 which inclines outward in the front-rear direction, toward a center portion of the heat exchange tube 45 with respect to the left-right direction. The angle formed between the slope portion 55 and the left edge or right edge of the corresponding corrugated fin 5 is set to 25 to 40 degrees.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Applicant: Showa Denko K.K.
    Inventors: Motoyuki Takagi, Naohisa Higashiyama, Hokuto Mine
  • Publication number: 20120192589
    Abstract: A three-media evaporator for a cooling unit utilizing the vapor compression refrigeration cycle. The apparatus includes a number of heat exchange tubes, each tube including an inner heat exchange tube adapted to carry a primary heat exchange medium and an outer heat exchange tube, adapted to carry an intermediate heat exchange medium. The intermediate heat exchange medium is in thermal communication with the primary heat exchange medium. A direct heat exchange mechanism, which in one aspect can be a set of fins, is in simultaneous thermal communication with the ambient medium and with the intermediate heat exchange medium. In each heat exchange tube the outer tube at least partially surround the inner tube, defining an annular space between the tubes. The intermediate medium is carried in the annular space.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Applicant: ADVANCED TECHNICAL SOLUTIONS GMBH
    Inventor: AHMED MOHAMED MOHAMED OMER
  • Patent number: 8205470
    Abstract: An indoor unit for a multi-directional air supply air conditioner capable of performing at least a heating operation includes: an indoor fan (39) for sucking air in an axial direction thereof and radially blowing out the air; and a heat exchange part (38), connected in a refrigerant circuit (80) and disposed to surround the indoor fan (39), for exchanging heat between the air blown out of the indoor fan (39) and refrigerant in the refrigerant circuit (80). The heat exchange part (38) includes a plurality of heat exchangers (48) separated from each other along the direction of the perimeter thereof and connected in parallel with each other in the refrigerant circuit (80).
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: June 26, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Shun Yoshioka, Hyunyoung Kim, Toshihiro Suzuki, Kazushige Kasai, Haruo Nakata
  • Patent number: 8201620
    Abstract: An evaporator unit includes an evaporator configured to evaporate a refrigerant, and a capillary tube configured to decompress the refrigerant. The capillary tube has two longitudinal ends bonded to the evaporator. At least one position of a middle portion between the two longitudinal ends of the capillary tube is fixed to the evaporator by press-contacting the evaporator. Therefore, it can prevent a crack from being caused at the bonding portions of the two longitudinal ends of the capillary tube.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: June 19, 2012
    Assignee: Denso Corporation
    Inventors: Thuya Aung, Tomohiko Nakamura, Hideaki Sato, Toshio Utsumi, Kazutoshi Yamamoto
  • Patent number: 8191385
    Abstract: An evaporator, applicable to a two-stage expansion cooling system, is used for receiving a high-pressure liquid working fluid. The evaporator includes a thermal-conductive block having a channel system. The channel system includes a high-pressure channel, a low-pressure channel, and a second stage expansion channel. The second stage expansion channel has an input end and an output end. The input end is communicated with the high-pressure channel. The output end is communicated with the low-pressure channel, and has a cross-sectional area smaller than that of the low-pressure channel. The high-pressure liquid working fluid flows into the thermal-conductive block from the high-pressure channel, and then enters the second stage expansion channel through the input end. A part of the high-pressure liquid working fluid flowing out of the output end expands into a saturated low-pressure liquid working fluid and enters the low-pressure channel.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: June 5, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chung-Szu Wei, Jane-Sunn Liaw, Chi-Chuan Wang, Kai-Shing Yang
  • Publication number: 20120042687
    Abstract: An evaporator with a cool storage function includes a cool storage material container disposed at least one of air-passing clearances formed between adjacent refrigerant flow tubes, and fins disposed in air-passing clearances on opposite sides of the cool storage material container. The cool storage material container includes a container body portion joined to the corresponding refrigerant flow tubes, and an outward extending portion which extends from the front edge of the container body portion and projects frontward in relation to the refrigerant flow tubes. Each of the fins has a fin body portion joined to the corresponding refrigerant flow tubes, and an outward extending portion which extends from the front edge of the fin body portion body and projects frontward in relation to the refrigerant flow tubes. The outward extending portions of the fins are brazed to opposite sides of the outward extending portion of the cool storage material container.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 23, 2012
    Applicant: SHOWA DENKO K.K.
    Inventors: Osamu Kamoshida, Naohisa Higashiyama, Takashi Hirayama
  • Publication number: 20110239696
    Abstract: An evaporator (1) with a cool storage function includes a plurality of flat refrigerant flow tubes (12) disposed in parallel such that their width direction coincides with an air flow direction and they are spaced from one another. Air-passing clearances (13, 13A) are formed between adjacent refrigerant flow tubes (12). Cool storage material containers (14) filled with a cool storage material are disposed in some (13A) of all the air-passing clearances (13, 13A), and each cool storage material container (14) is brazed to the refrigerant flow tubes (12) located on opposite sides thereof. Corrugated fins (15) are disposed in the remaining air-passing clearances (13), and each fin (15) is brazed to the refrigerant flow tubes (12) located on opposite sides thereof. Each cool storage material container (14) includes a plurality of convex portions (23) projecting outward from opposite side surfaces thereof, and projecting ends of the convex portions (23) are joined to the corresponding refrigerant flow tubes (12).
    Type: Application
    Filed: December 21, 2009
    Publication date: October 6, 2011
    Applicant: SHOWA DENKO K.K.
    Inventor: Motoyuki Takagi