Means Utilizing Heat Developed By Refrigeration Producer Patents (Class 62/277)
  • Patent number: 10596874
    Abstract: A vehicle air conditioner includes: a condenser that internally circulates a high-temperature and high-pressure refrigerant which is discharged from a compressor and that heats air passing around the condenser; an evaporator that internally circulates a low-temperature and low-pressure refrigerant and that absorbs heat from the air passing around the evaporator; and a switching portion that switches flows of air in response to a heating time, a cooling time, and a dehumidifying-heating time of a vehicle. Also, the switching portion causes the air passing around the condenser to flow into a vehicle compartment during the heating time of the vehicle, causes the air passing around the evaporator to flow into the vehicle compartment during the cooling time of the vehicle and causes the air sequentially passing through the evaporator and the condenser to flow into the vehicle compartment during the dehumidifying-heating time of the vehicle.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: March 24, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shinji Kakizaki, Choji Sakuma
  • Patent number: 10077911
    Abstract: An outdoor unit includes a casing having a bottom panel formed in a rectangular shape in a planar view. The bottom panel includes a bottom portion constituting a lower face of the casing, and a rising portion rising from an outer peripheral edge of the bottom portion. A first holding part is provided to the rising portion on a side of one side face of the casing, and a second holding part is provided to the rising portion on a side of the other side face of the casing opposite to the side of the one side face.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: September 18, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiyuki Kubono, Hiroyuki Jinnai, Tomoya Yanase
  • Patent number: 9963817
    Abstract: A vibration isolator suitable for isolating and/or dampening vibrations generated in a vibrating machinery component such as a motor or pump so as to minimise the unwanted effects (such as audible secondary sounds) of those vibrations. The isolator may be installed in a home appliance such as a laundry washing machine and may be a separate, unitary component installed between a motor/pump and the structure of the laundry machine or may be installed between a mounting bracket of the motor/pump and the laundry machine. Alternatively, the isolator may be integrally formed with a pump/motor mounting bracket, on upper and/or lower surfaces of a mounting flange. The isolator is preferably formed from a substantially incompressible material and in one preferred embodiment has a washer-like form with a central opening at least partially surrounded by a tubular ridge with a plurality of radial projections extending outwardly and/or inwardly from outer/inner surface(s) of the tubular ridge.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: May 8, 2018
    Assignee: Fisher & Paykel Appliances Limited
    Inventors: Brian Paul McLean, Valentin Pierre Nouguier
  • Patent number: 9933169
    Abstract: A compressor is to be used in an air conditioner. The air conditioner includes the compressor, an evaporator, and a container. The evaporator generates condensed water during operation. The container receives the condensed water generated by the evaporator. The compressor includes a main body and a textile member that is capable of transferring moisture and is quick drying. The main body is to be disposed in the container. The textile member covers at least a part of the main body, and is to be used for absorbing the condensed water.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: April 3, 2018
    Assignee: NATIONAL TAIWAN NORMAL UNIVERSITY
    Inventors: Huai-En Mo, Tun-Ping Teng
  • Patent number: 9839158
    Abstract: A cold plate device and method for cooling electronic systems is provided including a generally flat thermally conductive body having a cooling channel within the thermally conductive body. A first cooling fluid travels through the cooling channel to remove heat from the conductive body. A vapor compression cycle system is coupled to the thermally conductive body such that the first cooling fluid removes heat from a second cooling fluid in a portion of the vapor compression cycle system.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: December 5, 2017
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Andre Mitchell
  • Patent number: 9803898
    Abstract: An outdoor unit (ODU) for an air conditioning system includes a baffle or other airflow direction control such that the cooling air from a condenser is at least partially directed over the compressor to provide air movement around the compressor to assist in thermal transfer of heat from the compressor. In one system, curvilinear frustoconical baffles are positioned in a conventional barrel-type outdoor unit to direct airflow toward the compressor before being discharged from the unit. When any of the ODUs is part of a heat pump system for providing heating and cooling, a retractable or movable air diverting system is employed when in the heating mode to prevent airflow through the condenser from reaching the compressor.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: October 31, 2017
    Assignee: Whirlpool Corporation
    Inventors: Nihat O. Cur, Steven John Kuehl
  • Patent number: 9010143
    Abstract: An air conditioner includes a refrigerating cycle including a compressor (10) compressing a refrigerant, an indoor heat exchanger (30) exchanging heat between the refrigerant and indoor air, a pressure-reducing expansion valve (50) reducing pressure of and expanding the refrigerant, and an outdoor heat exchanger (60) exchanging heat between the refrigerant and outdoor air. The air conditioner further has a base plate (70) arranged below the outdoor heat exchanger (60) and having a drain outlet (71) formed at a position opposing an undersurface of the outdoor heat exchanger (60). Between the outdoor heat exchanger (60) and the base plate (70), a freeze prevention pipe (41) is disposed in a manner, in plan view, to at least partially pass inside the region of the drain outlet (71). The freeze prevention pipe (41) is connected between the outdoor heat exchanger (60) and the indoor heat exchanger (30).
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 21, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kenji Ashida
  • Patent number: 8973387
    Abstract: A vehicular air conditioning system capable of suppressing the power consumption of a refrigerating cycle is disclosed. The vehicular air conditioning system comprises a refrigerating cycle circuit comprising a compressor, an outside heat exchanger and an inside air conditioning heat exchanger annularly connected in order, and a device cooling circuit comprising a heating unit, an inside cooling heat exchanger, an intermediate heat exchanger and a pump being annularly connected, the intermediate heat exchanger being constructed such that one end of a piping of the cooling medium for air conditioning is connected to a liquid piping, the liquid piping providing connection between the outside heat exchanger and the inside air conditioning heat exchanger, and an opposite end of the piping of the cooling medium for air conditioning is connected to a suction port of the compressor.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: March 10, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Yuto Imanishi
  • Patent number: 8966921
    Abstract: The present invention relates to a compact air conditioning system (1) for a vehicle cabin, comprising a compressor (14), a condenser (15), an evaporator (16), a control unit (19) and a ventilation assembly (18) with a single motor (24) capable of promoting easy installation and autonomous functioning for both cooling and heating the inside of a cabin.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 3, 2015
    Assignee: Behr Brasil Ltda.
    Inventors: Marcelo Christêllo Nazário, Maicon Jarschel, Ernani Pautasso Nunes Junior
  • Publication number: 20150020533
    Abstract: The invention relates to an air-conditioning loop for heating, ventilation, and/or air-conditioning equipment in which a coolant circulates. The loop including a compressor comprising a coolant outlet connected to a delivery pipe and a coolant inlet connected to a suction pipe. The loop also including an internal heat exchanger which is capable of functioning at least as a condenser, and which is connected to the compressor via the delivery pipe. The loop also including an external unit which is connected to the compressor via the suction pipe and which includes at least one external heat exchanger capable of functioning at least as an evaporator, with the internal heat exchanger being connected to the external unit via a first intermediate duct comprising at least one pressure-release member. The loop includes a deicing pipe connected to the compressor and/or to the delivery pipe, as well as to the external unit.
    Type: Application
    Filed: February 12, 2013
    Publication date: January 22, 2015
    Inventor: Jin Ming Liu
  • Patent number: 8910488
    Abstract: A refrigerated case includes a housing including an interior display volume and a heat exchanger. The heat exchanger includes a circuit defined by a heat exchanger section including a plurality of tubes that define a flow path, a reheat section including a reheat tube, and a connecting tube fluidly connecting the flow path of the heat exchanger section with the reheat tube. Air flows over the plurality of tubes of the heat exchanger section and rejects heat to a refrigerant flowing through the plurality of tubes to heat the refrigerant. The heated refrigerant then flows through the reheat tube. As the air passes over the reheat tube, the air accepts heat from the heated refrigerant flowing through the reheat tube.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: December 16, 2014
    Assignee: Hill Phoenix, Inc.
    Inventor: Kwok Kwong Fung
  • Publication number: 20140352343
    Abstract: A C02 refrigeration system has an LT system with LT compressors and LT evaporators, and an MT system with MT compressors and MT evaporators, operating in a refrigeration mode and a defrost mode using C02 hot gas discharge from the MT and/or the LT compressors to defrost the LT evaporators. A C02 refrigerant circuit directs C02 refrigerant through the system and has an LT compressor discharge line with a hot gas discharge valve, a C02 hot gas defrost supply header directing C02 hot gas discharge from the LT and/or the MT compressors to the LT evaporators, a flash tank supplying C02 refrigerant to the MT and LT evaporators during the refrigeration mode, and receiving the C02 hot gas discharge from the LT evaporators during the defrost mode, and a control system directing the C02 hot gas discharge through the LT evaporators and to the flash tank during the defrost mode.
    Type: Application
    Filed: November 16, 2012
    Publication date: December 4, 2014
    Inventors: David K. Hinde, J. Scott Martin, Kim Christensen, John D. Bittner
  • Publication number: 20140345306
    Abstract: An anti-icing system for use with a refrigerator that defines an interior area includes a cooling apparatus mounted in the interior area of the refrigerator and having a condenser portion and a plurality of spaced apart fins operably coupled to the condenser portion and extending away therefrom. The anti-icing system includes a first fan situated in a fan housing having opposed front and rear walls, the front wall defining an aperture. The first fan is situated in the fan housing so as to transmit air through the aperture when energized. The heat exchange unit is configured to be mounted in the refrigerator interior area such that the plurality of evaporator fins extends outwardly. The fan housing is configured to be mounted in the refrigerator interior area perpendicular to the plurality of evaporator fins such that air is transmitted across the fins to reduce or eliminate icing.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Inventor: Michael L. Bakker, Jr.
  • Publication number: 20140345309
    Abstract: A refrigerating and air-conditioning apparatus performs, even during a heating operation under air conditions leading to formation of frost, a defrosting operation while simultaneously continuing a heating operation and that improves comfort through heating by ensuring an appropriate amount of ventilation. A plurality of refrigeration cycles that are capable of independently performing a heating operation and a defrosting operation, are provided. A ventilation damper of an indoor unit in which a refrigeration cycle that performs a defrosting operation is installed is closed during a defrosting operation, and a ventilation damper of an indoor unit in which a refrigeration cycle that performs a heating operation is installed is controlled to achieve a required amount of ventilation corresponding to the indoor ventilation state.
    Type: Application
    Filed: September 13, 2011
    Publication date: November 27, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomotaka Ishikawa, So Nomoto
  • Publication number: 20140345312
    Abstract: A heat exchanger includes a refrigerant tube through which a refrigerant for absorbing heat from air flows, and a defrosting medium tube through which a coolant for supplying heat for defrosting flows. Two fins disposed on both sides of the refrigerant tube include a protrusion protruding toward an upstream side of the flow of air with respect to the refrigerant tube. The protrusion is provided with a clearance that allows melt water generated in the defrosting to flow on the upstream side of the refrigerant tube. The refrigerant tubes and the defrosting medium tubes can be alternately arranged in the upstream line. The protrusion protrudes such that the air can be introduced into an air passage from the side portion of the protrusion even when an end facing the upstream side of the flow of the air is closed with the core of frost.
    Type: Application
    Filed: December 3, 2012
    Publication date: November 27, 2014
    Inventor: Yoshiki Katoh
  • Publication number: 20140318168
    Abstract: An air conditioning device capable of preventing drainage water dropped down from a heat exchange portion on the upper side for which a defrosting operation is performed from being frozen again in a heat exchange portion used for a heating operation, so that a decrease in a heating ability can be suppressed is provided. In an air conditioning device including a heat source side heat exchanger formed by providing a plurality of heat exchange portions, to which a refrigerant is supplied through different paths from each other, side by side in the up and down direction, and partial defrosting means for, while the heating operation is performed by using a part of the heat exchange portions, performing the defrosting operation for the other heat exchange portions, a drainage mechanism for draining drainage water generated in each of the heat exchange portions is provided for each of the heat exchange portions.
    Type: Application
    Filed: December 19, 2012
    Publication date: October 30, 2014
    Inventors: Kousuke Morimoto, Toshiyuki Kurihara, Nobuo Doumyou
  • Publication number: 20140230473
    Abstract: In an air-conditioning apparatus, a heat source side heat exchanger, intermediate heat exchangers, and use side heat exchangers are separately formed and adapted to be disposed at separate locations, respectively. There is provided a defrosting operation function to melt frost attached around the heat source side heat exchanger, and a heating function during defrosting operation that drives a pump to circulate a heat medium and supply heating energy to the use side heat exchangers in need of heating to perform heating operation. The defrosting operation function can be executed by switching a four-way valve to cooling side to introduce a high-temperature high-pressure refrigerant flowed out of the compressor into the heat source side heat exchanger.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Koji YAMASHITA, Hiroyuki MORIMOTO, Yuji MOTOMURA, Takeshi HATOMURA
  • Patent number: 8757433
    Abstract: A dispenser automatically dispenses beverage cans. A housing has a conveyor along which cans are conveyed by gravity to a removal opening. A dispensing flap is on the removal opening and can be pivoted between a closed position, in which it prevents the removal of products through the removal opening, and a removal position. The dispensing flap has two trough-shaped receptacles lying at right angles to the conveyor section for one can, and is pivotal such that in the closed position a can is conveyed from the conveyor section into the first receptacle positioned to the inside of the housing, removal of the can from the first receptacle being prevented. In the removal position the can rolls from the first receptacle into the second receptacle, at the same time a new can is prevented from being conveyed from the conveyor into the first receptacle.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: June 24, 2014
    Assignee: Gastro-Cool GmbH & Co. KG
    Inventor: Christian Machers
  • Patent number: 8752397
    Abstract: In an air-conditioning apparatus, a heat source side heat exchanger 12, intermediate heat exchangers 15a and 15b, and use side heat exchangers 26a to 26d are separately formed and adapted to be disposed at separate locations, respectively. There are provided a defrosting operation function to melt frost attached around the heat source side heat exchanger 12, and a heating function during defrosting operation that drives a pump 21a to circulate a heat medium and supply heating energy to the use side heat exchangers 26a to 26d in need of heating to perform heating operation. The defrosting operation function can be executed by switching a four-way valve 11 to cooling side to introduce a high-temperature high-pressure refrigerant flowed out of the compressor 10 into the heat source side heat exchanger 12.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 17, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Koji Yamashita, Hiroyuki Morimoto, Yuji Motomura, Takeshi Hatomura
  • Publication number: 20140130532
    Abstract: A refrigeration system utilizing natural circulation of heat to carry out defrosting thereof provides a refrigeration cycle path and a defrost cycle path, and is characterized by a heat energy storage device located at an output of a compressor that is common for the two cycle paths. High-temperature high-pressure overheated refrigerant output by the compressor passes through the heat energy storage device and releases part of heat energy thereto for storage. When the refrigeration system is switched from the refrigeration cycle path to the defrost cycle path, the compressor is turned off and three-way valves upstream an evaporator are opened, a pressure difference between the heat energy storage device and the evaporator drives the hot refrigerant to directly flow through the three-way valves into a coil of the evaporator to melt frost on the coil from inner to outer side while the refrigerant keeps circulating along the defrost cycle path.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 15, 2014
    Inventor: Hui Jiunn CHEN
  • Patent number: 8701431
    Abstract: An air conditioner is provided. The air conditioner includes: an indoor device installed at indoor; an outdoor device connected to the indoor device using a refrigerant pipe; a ventilation unit for exchanging heat of outdoor air and indoor air while ventilating indoor air and outdoor air; and a guidance duct for communicating the ventilation unit and an air inhalation portion of the outdoor device in order to guide indoor air exhausted from the ventilation unit to an air inhalation portion faulted in the outdoor device. Therefore, the number of ventilation holes to form in an outer wall of a building can be minimized, a construction cost can be reduced, and performance of the air conditioner can be improved.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: April 22, 2014
    Assignee: LG Electronics Inc.
    Inventor: Jong Hwan Jeung
  • Patent number: 8695368
    Abstract: A refrigerator is disclosed, which is able to more desirably carry out a heat exchange action between a hot pipe and a drain guide pipe, which guides defrosting water. The refrigerator comprises a cool air generating chamber and a machine chamber provided above a main body; a defrosting water tray provided inside the cool air generating chamber; a water collecting tray provided below the main body; a hot pipe connecting a compressor with a condenser through the water collecting tray, the compressor and the condenser being provided in the machine chamber; and a drain guide pipe mounted outside the main body and connected to the defrosting water tray and the water collecting tray to guide the defrosting water discharged from the defrosting water tray to the water collecting tray, wherein the hot pipe is provided inside or outside the drain guide pipe.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: April 15, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jongsoo Yoon, Jonggon Kim
  • Patent number: 8601831
    Abstract: A refrigeration machine for a domestic refrigerator includes a compressor, a condenser and an evaporator, which are connected to form a refrigerant circuit, wherein a stop valve is arranged in a refrigerant path from the condenser to the evaporator.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: December 10, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Panagiotis Fotiadis, Hans Ihle
  • Publication number: 20130312436
    Abstract: Heat pumps with improved defrost cycles, methods of defrosting heat exchangers, and methods of improving the effectiveness of defrost cycles of heat pumps, for example, having a microchannel outdoor heat exchanger. A defrost valve in a refrigerant conduit opens during a defrost cycle to deliver hot refrigerant gas to a portion of the heat exchanger that otherwise defrosts more slowly or less completely than other portions of the heat exchanger. Particular embodiments pass hot refrigerant gas through a header of the heat exchanger, such as a bottom header. In a number of embodiments, the defrost valve is open only during a portion of the defrost cycle. Further, in some embodiments, the fan that is used to blow air through the heat exchanger is operated in a reversed direction during at least part of the defrost cycle to counteract natural convection through the heat exchanger.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 28, 2013
    Applicant: Nordyne LLC
    Inventors: Jie Chen, Jacob Joseph Rede, David L. Koersterer, Craig A. Thomas
  • Publication number: 20130312437
    Abstract: A vapour compression refrigeration system includes a compressor (1) arranged to re-circulate refrigerant through a condenser (2), an expansion device (4) and an evaporator (5). To achieve rapid thermodynamically efficient defrosting of the evaporator, hot refrigerant from the condenser is stored in a defrost receiver (6) before passing through the expansion device (4). In a defrost phase, a valve arrangement (7-10) forms a closed defrost circuit connecting the evaporator (5) to the defrost receiver (6) via defrost valve (10) to allow hot fluid to pass from the defrost receiver to the evaporator and liquid refrigerant in the evaporator flows to the defrost receiver (6) via drain valve (9). In a pre-defrost phase, the valve arrangement closes the fluid input to the evaporator (5) and the compressor operates to partially evacuate the evaporator before the evaporator is connected to the defrost receiver, so that flash flooding of the evaporator with hot vapour occurs.
    Type: Application
    Filed: February 10, 2012
    Publication date: November 28, 2013
    Inventors: Thomas William Davies, Robin Campbell
  • Publication number: 20130305759
    Abstract: An air conditioner for a vehicle is provided with: a compressor that compresses a heat exchange medium; an external heat exchanger that receives the heat exchange medium and that exchanges heat with the outside of a vehicle compartment; and an evaporator that receives the heat exchange medium and exchanges heat with the inside of a vehicle compartment, and the air conditioner for a vehicle is able to perform: a defrosting cooling operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the evaporator and absorb heat, and to then flow into the external heat exchanger and release heat; and a hot gas operation in which the heat exchange medium that has been compressed by the compressor is made to flow into the external heat exchanger and release heat without being made to absorb heat in the evaporator, and, by switching between performing the defrosting cooling operation and performing the hot gas operation, the air conditioner for a vehicle performs a defrostin
    Type: Application
    Filed: May 14, 2013
    Publication date: November 21, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Isao TSUNODA, Kazuma ICHIKAWA
  • Patent number: 8561420
    Abstract: An air conditioning system for a vehicle includes a compressor, a condenser, a first sub-cooler, a metering device, and an evaporator assembly. The evaporator assembly includes an evaporator and a second sub-cooler. The second sub-cooler is arranged below the evaporator such that water condensation from the evaporator drains onto the second sub-cooler to cool the second sub-cooler such that a temperature of the refrigerant exiting the second sub-cooler is less than a temperature of the refrigerant exiting the first sub-cooler.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: October 22, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shinji Kakizaki, Junichi Kanemaru
  • Publication number: 20130167570
    Abstract: A conduit used only at one end of, and mildly defrosting, an evaporator without causing excessive heat to affect the evaporator in proximity to the evaporator. A tube includes at least one central passageway, at least one peripheral passageway, and at least one intermediate passageway. A refrigerant flows through the at least one peripheral passageway. A hot refrigerant gas flows through the at least one central passageway, and blends with the refrigerant flowing through the tube so as to form a defrosting blend. The defrosting blend defrosts along the full length of the tube, which occurs very rapidly due to contact of the hot refrigerant gas on the way to the end of the tube and then back through the at least one intermediate passageway of the tube as the blend.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 4, 2013
    Inventor: Jose Bouloy
  • Patent number: 8429923
    Abstract: An object is to provide a low temperature showcase in which waste heat from a condenser and the like can be utilized by a simple constitution to effectively eliminate dew condensation on a middle pillar, particularly on gasket of upper part of a door. The low temperature showcase includes a middle pillar whose front surface abuts on the gasket of the door; a machine chamber disposed outside a main body under a display chamber and including the condenser, a fan for the condenser and the like, and the showcase further includes a middle pillar duct member which is vertically attached to the middle pillar and in which a middle pillar duct is defined, a leading portion which leads air from the machine chamber into the middle pillar duct, and exhaust holes which discharge the air flowing upwards through the duct to the outside of the gasket between the upper part of the door and the main body.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: April 30, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Harunobu Iguchi, Keisuke Yamazawa, Tatsuya Itabashi
  • Publication number: 20130098076
    Abstract: A high performance refrigerator includes a cabinet with a unitary refrigerated interior and a refrigeration fluid circuit having first and second evaporators located within the cabinet and separated from the refrigerated interior by respective first and second evaporator covers. The refrigerator also includes a first damper controlling flow between the first evaporator and the refrigerated interior, and a second damper controlling flow between the second evaporator and the refrigerated interior. A controller directs the refrigerator to operate a three-way valve in the refrigeration fluid circuit so as to direct refrigerant to only one of the evaporators when the other requires defrosting. Both evaporators may be used to remove heat from the unitary refrigerated interior during an initial cooling or immediately after the cabinet is opened.
    Type: Application
    Filed: October 16, 2012
    Publication date: April 25, 2013
    Applicant: THERMO FISHER SCIENTIFIC (ASHEVILLE) LLC
    Inventor: Thermo Fisher Scientific (Asheville) LLC
  • Publication number: 20130091882
    Abstract: There is disclosed an air conditioner including a compressor to compress refrigerant, an indoor heat exchanger to cool or heat a room, using the refrigerant, an outdoor heat exchanger to heat-exchange the refrigerant with outdoor air, the outdoor heat exchanger comprising a front heat exchange member and a rear heat exchange member, and a defrosting module to adjust an opening degree of a passage of the refrigerant drawn into the front heat exchange member and the rear heat exchange member, wherein the defrosting module includes a first expansion valve to adjust an opening of a passage of the refrigerant introduced into the front heat exchange member and a defrosting unit to adjust an opening degree of a passage of the refrigerant between the front heat exchange member and the rear heat exchange member.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 18, 2013
    Inventors: Eunjun Cho, Cheolmin Kim
  • Patent number: 8418492
    Abstract: A condenser assembly for a refrigerator includes a condenser arranged in a frame. The condenser is configured for a flow of a refrigerant therethrough. The frame has at least one evaporation tray that is arranged above the condenser and one evaporation tray that is arranged below the condenser.
    Type: Grant
    Filed: November 22, 2007
    Date of Patent: April 16, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Detlef Cieslik, Jochen Härlen, Michaela Malisi, Berthold Pflomm
  • Publication number: 20130061615
    Abstract: A highly efficient condensate-free cooling unit functionally based on vapor-compression refrigeration cycle has been described. The condensate collected from the evaporator of the cooling unit is routed through a sub-cooling heat exchanger where it exchanges heat with the primary heat exchange medium emerging through the condenser of the cooling unit, thus, sub-cooling the primary heat exchange medium to a lower temperature before it enters the expansion valve. Emerging from the sub-cooling heat exchanger, the condensate flows through a condensate outlet pipe into multiple spray nozzles disposed over the condensate outlet pipe. The spray nozzles sprinkle the condensate over the hot air blown into the condenser to reduce its temperature. The cooling unit has a substantially higher coefficient of performance compared to the conventional cooling units utilizing vapor-compression refrigeration cycle, and eliminates the problems of condensate removal persistent in the art.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 14, 2013
    Applicant: ADVANCED TECHNICAL SOLUTIONS GMBH
    Inventor: AHMED MOHAMED MOHAMED OMER
  • Patent number: 8365542
    Abstract: The present invention provides an energy efficient air conditioner that can provide a continuous supply of air at dew point that is several degrees Celsius below zero, without requiring a defrost cycle. The air conditioner in accordance to present invention comprises a plurality of cooling coils with interconnecting refrigerant piping, refrigeration circuit consisting of compressor and condenser coils, control circuit and one or more electric motor driven centrifugal fan. The present invention uses two cooling systems. The first cooling system having single coil cools the air to a temperature just above zero deg. C., say four deg. C. so that the second stage gets a steady supply of cold air. The second stage has two coils, each being half the size of the first stage coil, thus taking half the air from it so that all the air from stage 1 passes through stage 2. In operation, only one coil of the second stage is active arid chills the air going through it to say minus 14 Deg. C.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 5, 2013
    Inventor: Surendra Himatlal Shah
  • Publication number: 20120312042
    Abstract: Disclosed are a heat pump boiler and a control method for the same. The heat pump boiler includes an outdoor unit having an outdoor-unit heat-exchanger, a water pipe including a water-feed pipe and a water-return pipe connected to the outdoor unit to feed water to the outdoor unit or to return low-temperature or medium-temperature water produced in the outdoor unit to an external location, heat exchangers connected to the water pipe to produce medium-temperature or high-temperature water, a variable-capacity compressor connected to the heat exchangers, a buffer tank connected to the water pipe, and an externally-wound heat exchanger to collect waste heat radiated from the compressor. A temperature of water stored in the buffer tank is raised using the collected waste heat, and, during a defrosting operation, the water stored in the buffer tank is fed to the outdoor-unit heat-exchanger to defrost an evaporator of the outdoor unit.
    Type: Application
    Filed: June 5, 2012
    Publication date: December 13, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Woon Jeong, Sung Oug CHO, Kil Hong SONG, Rock Hee KIM, Sung Goo KIM
  • Publication number: 20120312033
    Abstract: A condenser evaporator system includes: a condenser constructed for condensing a gaseous refrigerant from the source of compressed gaseous refrigerant; a controlled pressure receiver for holding liquid refrigerant; a first liquid refrigerant feed line for conveying liquid refrigerant from the condenser to the controlled pressure receiver; an evaporator for evaporating liquid refrigerant; and a second liquid refrigerant feed line for conveying liquid refrigerant from the controlled pressure receiver to the evaporator. The condenser evaporator system can be provided as multiple condenser evaporator systems operating from a source of compressed gaseous refrigerant.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 13, 2012
    Inventors: Fred Lingelbach, John Lingelbach
  • Patent number: 8316660
    Abstract: A defrost bypass dehumidifier includes an air flow path with first, second and third segments in series from upstream to downstream and passing ambient air respectively to an evaporator coil then to a condenser coil and then discharging same. The air flow path has a bypass segment passing ambient air to the evaporator coil in parallel with the noted first air flow path segment.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: November 27, 2012
    Assignee: Technologies Holdings Corp.
    Inventors: Todd DeMonte, Scott E. Sloan, Steve S. Dingle, Timothy S. O'Brien, Phillip R. Steinmetz
  • Publication number: 20120279244
    Abstract: A self-contained beverage chilling apparatus including a refrigerant cooling system comprising a refrigerant reservoir in a fluid communication with a cold plate, a refrigerator accumulator, a compressor and a refrigerant condenser mounted within a housing unit. The housing unit further included beverage inlet means in fluid communication with the cooling system cold plate, and beverage dispenser means in fluid communication with the cold plate wherein the beverage to be dispensed is chilled to a desired temperature as it passes through the cold plate to the beverage dispensing means.
    Type: Application
    Filed: June 11, 2012
    Publication date: November 8, 2012
    Applicant: Cleland Sales Corporation
    Inventor: James M. Cleland
  • Publication number: 20120137710
    Abstract: Embodiments of systems, apparatus, and/or methods can provide a damper assembly for transport refrigeration systems. One embodiment can include a damper assembly including a damper door configured to operate in a first position (e.g., closed), a second position (e.g., open), and at least one intermediate position. In one embodiment, a plurality of intermediate positions can be used to controllably vary a capacity of the transport refrigeration unit, or at least one component thereof. Embodiments of systems, apparatus, and/or methods can provide a damper assembly that can be accessed though an ambient portion of transport refrigeration systems or components.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 7, 2012
    Applicant: CARRIER CORPORATION
    Inventors: Robert C. Reimann, Timothy R. Campbell, Belin G. Czechowicz, Patrick McDonald, John R. Reason
  • Publication number: 20120102985
    Abstract: A heater is provided for elevating the temperature of a surface of a refrigerator above the dew point of air surrounding the surface so as to avoid condensation. Heat energy is recovered from the refrigeration cycle of the refrigerator by using a portion of the appliance's refrigeration loop to provide heat to the desired surface. A conductive element is connected with the desired surface and also placed into contact with a heated portion of the refrigeration loop to conduct heat energy therebetween. The surface and conductive element may be selectively removed and replaced from the refrigerator without the use of electric heating elements as conventionally required for removable surfaces.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Cory J. Tafoya, Mark Wayne Wilson, Brent Alden Junge
  • Publication number: 20120085117
    Abstract: A refrigerant circuit is configured, which includes an electric compressor, a condenser, an expansion mechanism, an evaporator, a hot gas introduction path connecting the electric compressor and the evaporator together, and a switching valve for controlling a flow of refrigerant in the hot gas introduction path. In addition, a fan is provided. In a defrosting cycle for introducing refrigerant into the evaporator through the hot gas introduction path to defrost the evaporator, if the pressure of the condenser is equal to or lower than a predetermined threshold, the fan forms an air flow from a radiator to the condenser.
    Type: Application
    Filed: June 3, 2010
    Publication date: April 12, 2012
    Inventors: Makoto Ikemiya, Hisaaki Takaoka, Shigeto Tanaka
  • Publication number: 20120055182
    Abstract: A CO2 refrigeration system comprises a refrigeration circuit in which circulates CO2 refrigerant between a compression stage in which the CO2 refrigerant is compressed. A condensation stage is provided in which the CO2 refrigerant releases heat and is accumulated in a condensation reservoir. An evaporation stage is provided in which the CO2 refrigerant is expanded to a gaseous state to absorb heat from a fluid for refrigeration, with at least a portion of CO2 refrigerant exiting the evaporation stage being directed to a supra-compression circuit comprising a supra-compression stage in which the portion of CO2 refrigerant is compressed. A heat exchanger is provided by which the compressed CO2 refrigerant is in a heat-exchange relation with a secondary-refrigerant circuit, such that the compressed CO2 refrigerant releases heat to a secondary refrigerant used for heating purposes. Pressure-regulating means control a pressure of the compressed CO2 refrigerant being returned to the condensation stage.
    Type: Application
    Filed: October 23, 2009
    Publication date: March 8, 2012
    Inventor: Serge Dubé
  • Publication number: 20110314843
    Abstract: A refrigeration device containing CO2 a refrigerant to be circulated, including a compressor, a heat-rejecting heat exchanger, an expansion, and an evaporator which are connected to one another. The refrigeration device includes a first portion and a second portion, the second portion having a higher temperature relative to the first portion when the refrigeration device is in operation. A heat-reclaim heat exchanger is provided at a given location in the second portion, provided to transfer heat to a fluid for further use as a source of heated fluid.
    Type: Application
    Filed: December 17, 2010
    Publication date: December 29, 2011
    Inventors: Bernd Heinbokel, Siegfried Haaf, Neelkanth S. Gupte, Ulf J. Jonsson, Tobias H. Sienel
  • Publication number: 20110289956
    Abstract: The present invention provides an energy efficient air conditioner that can provide a continuous supply of air at dew point that is several degrees Celsius below zero, without requiring a defrost cycle. The air conditioner in accordance to present invention comprises a plurality of cooling coils with interconnecting refrigerant piping, refrigeration circuit consisting of compressor and condenser coils, control circuit and one or more electric motor driven centrifugal fan. The present invention uses two cooling systems. The first cooling system having single coil cools the air to a temperature just above zero deg. C., say four deg. C. so that the second stage gets a steady supply of cold air. The second stage has two coils, each being half the size of the first stage coil, thus taking half the air from it so that all the air from stage 1 passes through stage 2. In operation, only one coil of the second stage is active arid chills the air going through it to say minus 14 Deg. C.
    Type: Application
    Filed: March 15, 2010
    Publication date: December 1, 2011
    Inventor: Surendra Himatlal Shah
  • Publication number: 20110252816
    Abstract: An icemaker moisture removal and defrost assembly is provided in a refrigerator. Cooled refrigerant is provided to a refrigerant loop within an icemaker to cool an ice making cavity and a moisture removal portion of the icemaker. Moisture laden air from a refrigerator compartment is directed through airflow channels defined by a plurality of fins extending from the moisture removal portion of the icemaker, whereby moisture condenses on the fins in the form of ice. Dry air exiting the airflow channels is directed across an evaporator and back into the refrigerator compartment. During a defrost event, a heater within the icemaker is used to melt the ice formed on the fins. Alternatively, hot gas from a compressor is used to heat a refrigerant line flowing through the evaporator and/or the icemaker to melt ice formed on the evaporator and/or the icemaker during a defrost event.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 20, 2011
    Applicant: WHIRLPOOL CORPORATION
    Inventors: TUSHAR KULKARNI, GUOLIAN WU
  • Publication number: 20110179816
    Abstract: A cold appliance, such as a household refrigerator or freezer, comprising a cooling module (102) and a cabinet (101). The cabinet has been assembled from pre-foamed panels comprising two opposite side wall panels (1), a rear wall panel (4), a top part (2), and a bottom part (103), which are connected essentially perpendicular to each other e.g. by means of mechanical and/or or glue joints, and a door (6). The cabinet comprises a condensation preventing device (160) comprising a heat carrier tube (28, 160) being positioned at a front frame portion of the cabinet of the cold appliance, preferably adjacent to a part of the door (6). The heat carrier tube being filled with a heat carrier fluid, being closed and having a boiler portion (172), which is arranged in thermal contact with a heat generating means (32) of said cooling module for boiling the heat carrier fluid.
    Type: Application
    Filed: May 19, 2009
    Publication date: July 28, 2011
    Applicant: AKTIEBOLAGET ELECTROLUX
    Inventors: Bernt Andersson, Klas Andersson
  • Publication number: 20110079027
    Abstract: An embodiment of a probe includes a sensor and a support. The sensor is operable to provide an indication of a thickness of a frozen substance that has accumulated between the sensor and a cooling fin of a cooling unit, and the support is operable to hold the sensor spaced apart from the cooling fin. For example, a defrost controller may use an embodiment of such a probe to monitor an amount of frost build up on the fin or fins of a cooling unit (e.g., a refrigeration or freezer unit) so that the controller may initiate a defrost cycle only when warranted. Such a probe may be more reliable than other defrost-detection techniques, and such a defrost controller may increase the cooling and energy efficiencies of a cooling unit as compared to a cooling unit having a conventional defrost controller.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 7, 2011
    Applicant: THE CONTROLS GROUP, INC.
    Inventors: Michael A. Ghan, James R. Conant
  • Patent number: 7908880
    Abstract: A compressor for a refrigerating device including a housing and an evaporation tray mounted on the housing. The evaporation tray is formed from a sleeve-like element mounting on the housing around a partial surface of the top of the housing.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: March 22, 2011
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Panagiotis Fotiadis, Hans Ihle, Helmut Konopa
  • Publication number: 20110041539
    Abstract: A method for dehumidifying a refrigeration system especially to dehumidify a refrigerated transporting container is disclosed. The refrigeration system comprises a refrigeration circuit including an evaporator, a compressor, an expansion valve and a condenser. The refrigeration system also comprises a control unit and a cooling space, the evaporator is placed in the cooling space and air blows over the evaporator to be cooled down. The dehumidification method is stepwise, and the method comprises a dehumidification mode and a re-establish mode. During the dehumidifying process the system shifts between the dehumidification mode and a re-establish mode stepwise dehumidifying the air in the container in such a way that the measured parameters especially the compartment temperature stays within acceptable limits.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 24, 2011
    Applicant: Maersk Container Industri A/S
    Inventor: Morten Nylykke
  • Publication number: 20100269526
    Abstract: Systems and methods of automatically operating dehumidifiers in response to dehumidifier operating conditions are disclosed herein. A method of operating a dehumidifier configured in accordance with one embodiment includes directing air flow through the dehumidifier at a first volumetric flow rate while the dehumidifier is operating at a first operating condition. The method further includes changing the first volumetric flow rate to a second volumetric flow rate when the first operating condition of the dehumidifier changes to a predetermined second operating condition.
    Type: Application
    Filed: April 26, 2010
    Publication date: October 28, 2010
    Inventors: Robert Pendergrass, Matthew Miller, Tom Schnelle, Larry White