EP2394111B1 - Temperature distribution improvement in refrigerated container - Google Patents
Temperature distribution improvement in refrigerated container Download PDFInfo
- Publication number
- EP2394111B1 EP2394111B1 EP10739123.7A EP10739123A EP2394111B1 EP 2394111 B1 EP2394111 B1 EP 2394111B1 EP 10739123 A EP10739123 A EP 10739123A EP 2394111 B1 EP2394111 B1 EP 2394111B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- container
- air
- container box
- refrigeration machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/003—Transport containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F2007/005—Cyclic ventilation, e.g. alternating air supply volume or reversing flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/005—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces in cold rooms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction
Definitions
- This invention relates generally to refrigerated containers and, more particularly, to a method and apparatus for obtaining a more uniform temperature distribution therein.
- a method and an apparatus according to the preambles of claims 1 and 4 are known, for example, from US-A-5 816 053 .
- Refrigerated containers are used to transport perishable cargo that requires very tight temperature control.
- the industry standard today is to have the refrigeration machine mounted at one end of the container box.
- the air in the container box is drawn into the refrigeration machine by fans which then blow the warmer air through an evaporator coil, with the cooled air then passing back into the container box to cool the cargo.
- the common problem with this arrangement is that the cargo's temperature tends to be higher towards the back door of the container and away from the refrigeration machine.
- the main reason is due to poor airflow distribution from the front to the back of the container box, with airflow being reduced significantly toward the back door.
- the temperature of the cargo is generally higher as it extends toward the rear door.
- the problem is exacerbated by the fact that the typical perishable cargo gives off heat of its own.
- US 5816053A discloses an apparatus including an evaporator having multiple fans for moving air through refrigerated coils and a cooler; the fans are alternately rotated in opposite directions for equal time segments.
- WO 97/39639A1 discloses the use of air control units to transfer air from an interstitial volume of a room to a side air space during one time period, and to reverse the airflow direction during another time period to reduce temperature variations.
- the present invention provides a method of operating a refrigerated container of the type having a container box and a refrigeration machine at one end of the container box with the refrigeration machine having a fan for circulating warmer return air through an evaporator coil to be cooled and then to flow rearwardly to the container to cool its cargo, comprising the steps of: during normal operation, operating the fan in one direction so as to draw in return air at one end of the refrigeration machine and discharge it from the other end thereof; periodically reversing the direction of the fan so as to draw in return air at the other end of the refrigeration machine and discharge it from the one end thereof; whereby the air in the refrigerated container is mixed so as to provide a more uniform temperature distribution throughout; and characterised by providing a door at an opening near said one end, opening said door when said fan is operating in said one direction and closing it so that the opening is of reduced cross section when operating in said reverse direction.
- the present invention provides a container of a type for holding cargo to be refrigerated, said container having a container box and a refrigeration machine at one end of the container box, said refrigeration machine comprising: an evaporator coil; a fan for causing warm air to be drawn in from one portion of the container box, to pass through the evaporator coil to be cooled, and then flow outwardly from the refrigeration machine to another portion of the container box; a control for selectively operating the fan in one direction so as to draw in air from said container box one portion and return cooled air to said container box other portion and, periodically, reversing the direction of the fan such that the air is drawn in from said container box other portion and the cooled air is returned to said container box one portion; and characterised by a door at an opening near said box one portion that automatically opens when said fan is operated in said one direction and closes so that the opening is of reduced cross section when said fan is operating in said reverse direction.
- a refrigerated container is shown generally at 11 as including a container box 12 having bottom and top sides 13 and 14 and front and rear ends 16 and 17.
- the container box 12 is designed to temporarily hold perishable cargo as shown at 18.
- a refrigeration machine 19 is installed in such a manner as to fluidly communicate with the air in the container box 12 in order to cool that air for the purpose of refrigerating the cargo 18.
- the refrigeration machine 19 includes a standard refrigeration circuit comprising, in serial flow relationship, a compressor, a condenser, an expansion device and an evaporator. It is by the flow of the return air from the container box 12 and through the evaporator, that the air in the container box 12 is cooled. Circulation of air through the evaporator and into and out of the container box 12 as shown in Fig. 1 is caused by operation of a fan 21 within the refrigeration machine 19.
- the fan 21 is located near a top portion 22 of the refrigeration machine 19 which, during normal operation, acts to draw the return air forwardly along a top portion 23 of the container box 12 and through an open door 24.
- the warm air is then blown through the evaporator coil 24 where the air is cooled, with the cooled air then being discharged from a lower portion 26 of the refrigeration machine 19.
- the cooled air flows rearwardly through a bottom portion 27 of the container box 12 as shown by the arrows.
- the cooler air rises upwardly through a t-bar floor as indicated by the upwardly extending arrows.
- the cooled air passes upwardly through the cargo 18 with heat being transferred thereto from the cargo 18.
- the warmer air then continues upwardly to enter the top portion 23 of the container box 12 to complete the cycle.
- the cooler cargo will be in the lower left portion of the container box and the warmer cargo will be at the upper right portion thereof.
- the perishable cargo temperature distribution in a container determines the shelf life of the cargo.
- the shelf life of the cargo will be variable as indicated by the temperature distribution in Fig. 3 . It is thus desirable to eliminate the hot spots and promote a more uniform temperature distribution within the container box 12. This is accomplished by operation of the system as shown in Fig. 4 .
- the fan 21 is caused to operate in reverse so as to draw air through the evaporator coil 14 rather than blow air therethrough.
- This causes an associated reversal of airflow through the container box 12 as shown by the arrows. That is, the cooled air from the evaporator coil 24 passes upwardly through the fan 21 and into the top portion 22 of the refrigeration machine 19. From there it passes through the opening 30 and into the top portion 23 of the container box 12 to then flow rearwardly and downwardly as indicated by the arrows. The cooled air passes through the cargo 18 and then downwardly into the bottom portion 27 of the container box 12 before returning forwardly to the bottom portion 26 of the refrigeration machine 19 to complete the cycle.
- This reversal of flow causes mixing of the air within the container box 12 so as to thereby promote a more uniform distribution.
- the door 25 is provided at the front end of the container top portion 23 as shown in Figs. 5A and 5B . That is, as shown in Fig. 5A , during normal operation the return airflow causes the door 25 to open and allow the air to flow freely across the entire cross section of the top portion 23 as shown. However, in reverse flow operation, the flow of air will cause the door 25 to be moved to the closed position such that the opening 30 is of reduced cross section as shown in Fig. 5B . This will, in turn, cause the velocity of the airflow therethrough to increase, which will provide better "throw" and further promote mixing.
Description
- This invention relates generally to refrigerated containers and, more particularly, to a method and apparatus for obtaining a more uniform temperature distribution therein. A method and an apparatus according to the preambles of
claims 1 and 4 are known, for example, fromUS-A-5 816 053 . - Refrigerated containers are used to transport perishable cargo that requires very tight temperature control. The industry standard today is to have the refrigeration machine mounted at one end of the container box. The air in the container box is drawn into the refrigeration machine by fans which then blow the warmer air through an evaporator coil, with the cooled air then passing back into the container box to cool the cargo. The common problem with this arrangement is that the cargo's temperature tends to be higher towards the back door of the container and away from the refrigeration machine. The main reason is due to poor airflow distribution from the front to the back of the container box, with airflow being reduced significantly toward the back door. As a result, the temperature of the cargo is generally higher as it extends toward the rear door. The problem is exacerbated by the fact that the typical perishable cargo gives off heat of its own.
-
US 5816053A discloses an apparatus including an evaporator having multiple fans for moving air through refrigerated coils and a cooler; the fans are alternately rotated in opposite directions for equal time segments. -
WO 97/39639A1 - According to an aspect, the present invention provides a method of operating a refrigerated container of the type having a container box and a refrigeration machine at one end of the container box with the refrigeration machine having a fan for circulating warmer return air through an evaporator coil to be cooled and then to flow rearwardly to the container to cool its cargo, comprising the steps of: during normal operation, operating the fan in one direction so as to draw in return air at one end of the refrigeration machine and discharge it from the other end thereof; periodically reversing the direction of the fan so as to draw in return air at the other end of the refrigeration machine and discharge it from the one end thereof; whereby the air in the refrigerated container is mixed so as to provide a more uniform temperature distribution throughout; and characterised by providing a door at an opening near said one end, opening said door when said fan is operating in said one direction and closing it so that the opening is of reduced cross section when operating in said reverse direction.
- By another aspect the present invention provides a container of a type for holding cargo to be refrigerated, said container having a container box and a refrigeration machine at one end of the container box, said refrigeration machine comprising: an evaporator coil; a fan for causing warm air to be drawn in from one portion of the container box, to pass through the evaporator coil to be cooled, and then flow outwardly from the refrigeration machine to another portion of the container box; a control for selectively operating the fan in one direction so as to draw in air from said container box one portion and return cooled air to said container box other portion and, periodically, reversing the direction of the fan such that the air is drawn in from said container box other portion and the cooled air is returned to said container box one portion; and characterised by a door at an opening near said box one portion that automatically opens when said fan is operated in said one direction and closes so that the opening is of reduced cross section when said fan is operating in said reverse direction.
-
-
FIG. 1 is a perspective view of a refrigerated container with the present invention incorporated therein. -
FIG. 2 is a schematic illustration thereof showing the airflow therein during normal operation. -
FIG. 3 is a graphic illustration of the temperature distribution therein during normal operation. -
FIG. 4 is a schematic illustration of the airflow pattern which results in a refrigerated container when operated in accordance with the present invention. -
FIG. 5A and 5B are perspective views of a door portion thereof during normal and reverse flow operation thereof. - A refrigerated container is shown generally at 11 as including a
container box 12 having bottom andtop sides rear ends container box 12 is designed to temporarily hold perishable cargo as shown at 18. - At the
front end 16 of thecontainer box 12, arefrigeration machine 19 is installed in such a manner as to fluidly communicate with the air in thecontainer box 12 in order to cool that air for the purpose of refrigerating thecargo 18. Therefrigeration machine 19 includes a standard refrigeration circuit comprising, in serial flow relationship, a compressor, a condenser, an expansion device and an evaporator. It is by the flow of the return air from thecontainer box 12 and through the evaporator, that the air in thecontainer box 12 is cooled. Circulation of air through the evaporator and into and out of thecontainer box 12 as shown inFig. 1 is caused by operation of afan 21 within therefrigeration machine 19. - As will be seen in
Fig. 2 , thefan 21 is located near atop portion 22 of therefrigeration machine 19 which, during normal operation, acts to draw the return air forwardly along atop portion 23 of thecontainer box 12 and through anopen door 24. The warm air is then blown through theevaporator coil 24 where the air is cooled, with the cooled air then being discharged from alower portion 26 of therefrigeration machine 19. From there, the cooled air flows rearwardly through abottom portion 27 of thecontainer box 12 as shown by the arrows. The cooler air rises upwardly through a t-bar floor as indicated by the upwardly extending arrows. - The cooled air passes upwardly through the
cargo 18 with heat being transferred thereto from thecargo 18. The warmer air then continues upwardly to enter thetop portion 23 of thecontainer box 12 to complete the cycle. - It should be recognized that as the cooled air travels rearwardly, it gradually becomes warmer such that when it reaches the
rear end 17 it is at its higher temperature. Further, since the flow of air through thecontainer box 12 relies on the momentum created by thefan 21 and the convection currents within thecontainer box 12, the velocity of flow will be reduced as its extends toward therear wall 17. For that reason, a substantial temperature gradient will exist both in the vertical direction and in the horizontal direction, within thecontainer box 12. Since the cargo is exposed to this distribution of air for long periods of time such as days or even weeks, the temperature of thecargo 18 within the container box reflects a similar temperature distribution. This cargo temperature distribution is shown inFig. 3 . Here it will be seen that the cooler cargo will be in the lower left portion of the container box and the warmer cargo will be at the upper right portion thereof. In fact, at the top and rear of thecontainer box 12 there is a hot spot that may well impact the quality of the cargo. That is, the perishable cargo temperature distribution in a container determines the shelf life of the cargo. Thus, the shelf life of the cargo will be variable as indicated by the temperature distribution inFig. 3 . It is thus desirable to eliminate the hot spots and promote a more uniform temperature distribution within thecontainer box 12. This is accomplished by operation of the system as shown inFig. 4 . - Here, the
fan 21 is caused to operate in reverse so as to draw air through theevaporator coil 14 rather than blow air therethrough. This causes an associated reversal of airflow through thecontainer box 12 as shown by the arrows. That is, the cooled air from theevaporator coil 24 passes upwardly through thefan 21 and into thetop portion 22 of therefrigeration machine 19. From there it passes through the opening 30 and into thetop portion 23 of thecontainer box 12 to then flow rearwardly and downwardly as indicated by the arrows. The cooled air passes through thecargo 18 and then downwardly into thebottom portion 27 of thecontainer box 12 before returning forwardly to thebottom portion 26 of therefrigeration machine 19 to complete the cycle. This reversal of flow causes mixing of the air within thecontainer box 12 so as to thereby promote a more uniform distribution. - In order to increase the airflow speed, and thus the "throw", during reverse flow operation, the
door 25 is provided at the front end of thecontainer top portion 23 as shown inFigs. 5A and 5B . That is, as shown inFig. 5A , during normal operation the return airflow causes thedoor 25 to open and allow the air to flow freely across the entire cross section of thetop portion 23 as shown. However, in reverse flow operation, the flow of air will cause thedoor 25 to be moved to the closed position such that theopening 30 is of reduced cross section as shown inFig. 5B . This will, in turn, cause the velocity of the airflow therethrough to increase, which will provide better "throw" and further promote mixing. - It is recognized that the blow-through operation of the
fan 21 as shown inFig. 2 is more efficient then the draw-through approach as shown inFig. 4 . However, the time in which thefan 21 is operated in the reverse mode is relatively small compared with the time that it operates in the normal mode as shown inFig. 2 . A typical time cycle of normal and periodic reverse operation is shown in Fig. 6. - While the present invention has been particularly shown and described with reference to the preferred mode as illustrated in the drawing, it will be understood by one skilled in the art that various changes in detail may be effected therein without departing from the scope of the invention as defined by the claims.
Claims (4)
- A method of operating a refrigerated container (11) of the type having a container box (12) and a refrigeration machine (19) at one end of the containe box, with the refrigeration machine having a fan (21) for circulating warmer return air through an evaporator coil (24) to be cooled and then to flow rearwardly to the container to cool its cargo (18), comprising the steps of:
during normal operation, operating the fan in one direction so as to draw in return air at one end of the refrigeration machine and discharge it from the other end thereof;
periodically reversing the direction of the fan so as to draw in return air at the other end of the refrigeration machine and discharge it from the one end thereof; whereby the air in the refrigerated container is mixed so as to provide a more uniform temperature distribution throughout; and
characterised by providing a door (25) at an opening (30) near said one end, opening said door when said fan is operating in said one direction and closing it so that the opening is of reduced cross section when operating in said reverse direction - A method as set forth in claim 1 wherein said fan (21) operates in a blow-through mode during normal operation and as a draw-through mode during periodic reverse operation.
- A method as set forth in claim 1 wherein said refrigeration machine (19) at one end is near the top thereof and the other end is near a bottom end thereof.
- A container (11) of a type for holding cargo to be refrigerated, said container having a container box (12) and a refrigeration machine (19) at one end of said container box, said refrigeration machine comprising:an evaporator coil (24);a fan (21) for causing warm air to be drawn in from one portion of the container box, to pass through the evaporator coil to be cooled, and then flow outwardly from the refrigeration machine to another portion of the container box;a control for selectively operating the fan in one direction so as to draw in air from said container box one portion and return cooled air to said container box other portion and, periodically, reversing the direction of the fan such that the air is drawn in from said container box other portion and the cooled air is returned to said container box one portion; andcharacterised by a door (25) at an opening (30) near said box one portion that automatically opens when said fan is operated in said one direction and closes so that the opening is of reduced cross section when said fan is operating in said reverse direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15101609P | 2009-02-09 | 2009-02-09 | |
PCT/US2010/023196 WO2010091181A1 (en) | 2009-02-09 | 2010-02-04 | Temperature distribution improvement in refrigerated container |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2394111A1 EP2394111A1 (en) | 2011-12-14 |
EP2394111A4 EP2394111A4 (en) | 2015-08-26 |
EP2394111B1 true EP2394111B1 (en) | 2016-10-12 |
Family
ID=42542381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10739123.7A Not-in-force EP2394111B1 (en) | 2009-02-09 | 2010-02-04 | Temperature distribution improvement in refrigerated container |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110283719A1 (en) |
EP (1) | EP2394111B1 (en) |
CN (1) | CN102308165B (en) |
DK (1) | DK2394111T3 (en) |
SG (1) | SG173543A1 (en) |
WO (1) | WO2010091181A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100258642A1 (en) * | 2008-09-22 | 2010-10-14 | Newcomer Douglas A | Enviromental control systems and methods of configuring environmental control systems |
WO2012017301A1 (en) * | 2010-08-04 | 2012-02-09 | Stellenbosch University | Refrigeration transport container |
DE102011075946A1 (en) * | 2011-05-17 | 2012-11-22 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance e.g. household refrigerating appliance has control circuit, temperature sensor and timer that are arranged within storage chamber for reversing air circulation direction at operating phase of evaporator |
CN103964088B (en) * | 2013-01-28 | 2017-10-31 | 中国国际海运集装箱(集团)股份有限公司 | Ventilation unit and the frozen products insulated container with the ventilation unit |
GB2552084B (en) | 2014-01-29 | 2018-08-01 | Illinois Tool Works | A locker system |
CN109059393A (en) * | 2014-02-28 | 2018-12-21 | 株式会社电装 | Temperature adjustment stowage arrangement |
US11536505B2 (en) | 2015-10-09 | 2022-12-27 | Innovation Thru Energy Co., Ltd. | Cold storage system for transport |
CN105758164A (en) * | 2016-04-29 | 2016-07-13 | 谢东波 | Balanced circulation system for confined space |
CN107401874A (en) * | 2017-09-13 | 2017-11-28 | 珠海格力电器股份有限公司 | Container and its air blowing control method |
WO2019229933A1 (en) * | 2018-05-31 | 2019-12-05 | 日立ジョンソンコントロールズ空調株式会社 | Air conditioner |
AR117003A1 (en) * | 2019-11-06 | 2021-06-30 | Juan Domingo Lombard | METHOD FOR REDUCING THE CHILLING DAMAGE OF A CHANNEL |
DK180928B1 (en) * | 2020-03-05 | 2022-06-29 | Maersk Container Ind A/S | Transport unit and method of controlling an atmosphere therein |
CN111895713A (en) * | 2020-06-24 | 2020-11-06 | 卧龙电气驱动集团股份有限公司 | Uniform air outlet device applied to refrigerator air duct and control method |
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FR2498429A1 (en) * | 1981-01-27 | 1982-07-30 | Carboxyque Francaise | IMPROVED REFRIGERATION CHAMBER |
DE3111877A1 (en) * | 1981-03-26 | 1982-10-14 | Kunststoff- und Kältetechnik Großkopf GmbH, 4300 Essen | "REFRIGERATED VEHICLE WITH TWO CHAMBERS" |
US4689533A (en) * | 1985-10-25 | 1987-08-25 | Yang Tai Her | Controlled fan |
GB8706574D0 (en) * | 1987-03-19 | 1987-04-23 | Yang Tai Her | Circulating fan |
US4736597A (en) * | 1987-04-08 | 1988-04-12 | Thermo King Corporation | Transport refrigeration system |
US4936104A (en) * | 1988-07-21 | 1990-06-26 | Hicke Gerald E | Air conditioning method and apparatus for refrigerated vehicles |
US4979431A (en) * | 1988-11-08 | 1990-12-25 | Mitsui O. S. K. Lines, Ltd. | Gaseous flow construction of box member for refrigerated transportion and box member for refrigerated transportation using the same |
US5319941A (en) * | 1992-09-22 | 1994-06-14 | Trans-Pak, Inc. | System and method for storing perishable products in a refrigerated cargo bay |
US5789007A (en) | 1996-04-24 | 1998-08-04 | Cool Care, Ltd. | Method and apparatus for controlled ripening of fresh produce |
US5809798A (en) * | 1996-09-26 | 1998-09-22 | Cornerstone Technologies, Ltd. | Refrigerated container with controlled air distribution |
US5830057A (en) * | 1996-10-17 | 1998-11-03 | Coldwall Technologies Limited | Integrated temperature-controlled container |
US5816053A (en) | 1997-05-08 | 1998-10-06 | Cloverdale Foods Company | Apparatus and methods for cooling and tempering processed food products |
US6405543B2 (en) * | 1997-05-16 | 2002-06-18 | Work Smart Energy Enterprises Inc. | High-efficiency air-conditioning system with high-volume air distribution |
JPH10325668A (en) * | 1997-05-28 | 1998-12-08 | Daikin Ind Ltd | Freezing container |
US5867994A (en) * | 1997-09-19 | 1999-02-09 | Kopko; William L. | Dual-service evaporator system for refrigerators |
US5916253A (en) * | 1998-05-04 | 1999-06-29 | Carrier Corporation | Compact trailer refrigeration unit |
US6574970B2 (en) * | 2000-02-18 | 2003-06-10 | Toc Technology, Llc | Computer room air flow method and apparatus |
US6758057B2 (en) * | 2002-07-30 | 2004-07-06 | Vince, Ii Gerard C. | Bimodal refrigeration system and method |
JP2005257095A (en) * | 2004-03-09 | 2005-09-22 | Isuzu Motors Ltd | Vehicle with gas cooler |
CN101198833A (en) * | 2005-05-25 | 2008-06-11 | 利勃海尔-家用电器奥克森豪森有限责任公司 | Cooling and/or freezing device |
US7516624B2 (en) * | 2005-06-01 | 2009-04-14 | Weeth Frederic R | Cooling room |
CN101438111B (en) * | 2006-05-01 | 2011-04-13 | 开利公司 | Improvement of indoor air quality through re-evaporation control |
-
2010
- 2010-02-04 US US13/146,104 patent/US20110283719A1/en not_active Abandoned
- 2010-02-04 CN CN201080007100.7A patent/CN102308165B/en not_active Expired - Fee Related
- 2010-02-04 DK DK10739123.7T patent/DK2394111T3/en active
- 2010-02-04 WO PCT/US2010/023196 patent/WO2010091181A1/en active Application Filing
- 2010-02-04 EP EP10739123.7A patent/EP2394111B1/en not_active Not-in-force
- 2010-02-04 SG SG2011056272A patent/SG173543A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
SG173543A1 (en) | 2011-09-29 |
CN102308165B (en) | 2014-06-18 |
WO2010091181A1 (en) | 2010-08-12 |
US20110283719A1 (en) | 2011-11-24 |
DK2394111T3 (en) | 2017-01-23 |
CN102308165A (en) | 2012-01-04 |
EP2394111A4 (en) | 2015-08-26 |
EP2394111A1 (en) | 2011-12-14 |
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