KR100697088B1 - Air-Condition - Google Patents

Air-Condition Download PDF

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Publication number
KR100697088B1
KR100697088B1 KR20050049319A KR20050049319A KR100697088B1 KR 100697088 B1 KR100697088 B1 KR 100697088B1 KR 20050049319 A KR20050049319 A KR 20050049319A KR 20050049319 A KR20050049319 A KR 20050049319A KR 100697088 B1 KR100697088 B1 KR 100697088B1
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KR
South Korea
Prior art keywords
refrigerant
rapid cooling
heat exchanger
air
intermediate heat
Prior art date
Application number
KR20050049319A
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Korean (ko)
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KR20060128130A (en
Inventor
송찬호
심재훈
오세윤
장지영
Original Assignee
엘지전자 주식회사
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Priority to KR20050049319A priority Critical patent/KR100697088B1/en
Publication of KR20060128130A publication Critical patent/KR20060128130A/en
Application granted granted Critical
Publication of KR100697088B1 publication Critical patent/KR100697088B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B7/00Compression machines, plant, or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/14Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically both tubes being bent
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for

Abstract

In the present invention, the indoor air is cooled by heat exchange with the main evaporator of the first refrigerant in the normal cooling mode, and the indoor air is cooled by heat exchange with the intermediate heat exchanger consisting of the main evaporator and the rapid cooling condenser of the second refrigerant in the rapid cooling mode. After the second refrigerant is cooled again in the rapid cooling evaporator, the intermediate heat exchanger is configured in a double tube structure in which the first refrigerant flows on the outside thereof and the second refrigerant flows on the inside thereof. An air conditioner may be provided in which a first refrigerant may be directly heat exchanged with ambient air and a second refrigerant in the intermediate heat exchanger may not be directly heat exchanged with air surrounding the intermediate heat exchanger.
Air Conditioner, Intermediate Heat Exchanger, Rapid Cooling

Description

Air Conditioner {Air-Condition}

1 is a system diagram of an air conditioning cycle according to the prior art,

2 is a perspective view of an air conditioner according to the present invention;

3 is a system diagram of an air conditioning cycle according to the present invention;

4 is a perspective view of an intermediate heat exchanger of the air conditioner according to the present invention;

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a perspective view showing a part of the rapid cooling evaporator of the air conditioner according to the present invention;

7 is a graph showing an air conditioning cycle diagram according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: indoor unit 52: outdoor unit

60: main compressor 62: main condenser

64: main inflator 66: main evaporator

70: rapid cooling compressor 72: rapid cooling condenser

74: rapid cooling expander 76: rapid cooling evaporator

80: intermediate heat exchanger 90: indoor blower

92: outdoor blower

The present invention relates to an air conditioner capable of implementing a clean function, a dehumidification function, etc., as well as a cooling / heating function to create a comfortable environment in a room.

In general, the air conditioner is a device for creating a comfortable environment in the room, and has a clean function, a dehumidification function, etc., as well as a cooling / heating function for creating indoor air at a comfortable temperature.

Among the various functions of the air conditioner described above, the cooling function is performed by the following cooling cycles in which indoor air is cooled by heat exchange with a refrigerant.

1 is a block diagram showing a cooling cycle of the air conditioner according to the prior art.

The cooling cycle of the air conditioner shown in FIG. 1 includes a compressor 2 in which vaporized refrigerant is compressed at high pressure, a condenser 4 in which the refrigerant compressed in the compressor 2 is heat-exchanged with air, and condensed at low temperature. And an expander 6 in which the refrigerant condensed in the condenser 4 is expanded at low pressure, and an evaporator 8 in which low-temperature, low-pressure liquid refrigerant expanded in the expander 6 is evaporated by heat exchange with air.

The compressor 2 is divided into a single type composed of one and a multi type composed of at least two compressors. The single type compressor 2 can be divided into an inverter whose compression capacity can be varied according to the load amount, and a constant speed type with a constant compression capacity. In addition, the multi-type compressor 2 is provided such that at least two or more compressors are selectively operated according to the load amount.

The cooling cycle of the air conditioner according to the prior art configured as described above, the indoor air is cooled by the heat of vaporization of the refrigerant in the evaporator (8), the refrigerant vaporized in the evaporator (8) and the compressor (2) Passing through the condenser 4 and the expander 6 in order to circulate back to the low-temperature, low-pressure liquid refrigerant.

However, the air conditioner according to the prior art as described above, if the difference between the current room temperature and the target room temperature, such as when entering the room during the initial operation or in the hot air outside, the load is large, but the cooling capacity is rapidly increased There is a problem that can not provide a cool wind because it is difficult.

The present invention has been made to solve the above problems of the prior art, the air is cooled by the heat of evaporation of the first refrigerant and then re-cooled by the heat of evaporation of the second refrigerant, the second refrigerant of the first refrigerant The purpose of the present invention is to provide an air conditioner capable of condensation by heat of evaporation so that a cool and comfortable wind can be provided even if a load is large.

The present invention for solving the above problems is a main compressor, the main condenser, and the main expander, the first refrigerant is arranged to be sequentially compressed, condensed, expanded; A rapid cooling compressor in which the second refrigerant is compressed; An intermediate heat exchanger in which ambient air is cooled and the second refrigerant discharged from the rapid cooling compressor is condensed by the heat of vaporization of the first refrigerant discharged from the main expander; A rapid cooling recondenser for condensing the second refrigerant condensed in the rapid cooling condenser again with ambient air; A rapid cooling expander for expanding the second refrigerant discharged from the intermediate heat exchanger; A rapid cooling evaporator positioned in front of the intermediate heat exchanger such that the air passing through the intermediate heat exchanger is cooled again by the heat of vaporization of the second refrigerant discharged from the rapid cooling expander, wherein the intermediate heat exchanger has a first outside Provided is an air conditioner having a double tube structure in which a refrigerant flows and a second refrigerant flows therein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of an air conditioner according to the present invention, FIG. 3 is a schematic diagram of an air conditioning cycle according to the present invention, FIG. 4 is a perspective view of an intermediate heat exchanger of the air conditioner according to the present invention, and FIG. 6 is a cross-sectional view of a rapid cooling evaporator of an air conditioner according to the present invention, and FIG. 7 is a graph showing an air conditioning cycle diagram according to the present invention.

In the air conditioner according to the present invention, the indoor unit 50 is largely structurally cooled by heat exchange with a low temperature and low pressure refrigerant, and the refrigerant exchanged with the indoor air in the indoor unit 50 returns to a low temperature and low pressure state. Can be divided into an outdoor unit (52).

The air conditioner of this structure has a first cooling cycle in which the indoor air is cooled by heat exchange with the first refrigerant, and the indoor air cooled by the first cooling cycle is exchanged with the second refrigerant to be cooled again to a lower temperature. Has a second cooling cycle.

The first cooling cycle may include a main compressor 60 in which the first refrigerant is compressed, a main condenser 62 in which the first refrigerant compressed in the main compressor 60 dissipates heat to condense, and the The main expander 64 in which the first refrigerant condensed in the main condenser 62 is expanded, and the low-temperature, low-pressure first refrigerant discharged from the main expander 64 absorb the surrounding heat, that is, the heat of indoor air. It consists of a main evaporator 66 which is evaporated.

The main compressor 60 may be provided in a single type or a multi type, and in the case of a single type, either an inverter or a constant speed type may be used.

The main evaporator 66 is located in the indoor unit 50 so as to exchange heat with the indoor air. The main condenser 62 condenses the first refrigerant by dissipating heat from the main condenser 62, so that the first refrigerant does not dissipate heat to indoor air in the main condenser 62. ).

As the first refrigerant to be applied to the first cooling cycle as described above, the R-22 refrigerant having the condensation temperature of the main condenser 62 at 43.9 ° C. and the evaporation temperature of the main evaporator 66 at −16.8 ° C. desirable.

The second cooling cycle includes a rapid cooling compressor 70 in which the second refrigerant is compressed, and a rapid cooling condenser 72 in which the second refrigerant compressed by the rapid cooling compressor 70 dissipates heat and condenses. And a rapid cooling expander 74 in which the second refrigerant condensed in the rapid cooling condenser 72 is expanded, and a low-temperature, low-pressure second refrigerant discharged from the rapid cooling expander 74 includes the surrounding heat, ie, It consists of a rapid cooling evaporator 76 which absorbs the heat of the indoor air cooled by the main evaporator 66 and evaporates.

Like the main compressor 60, the rapid cooling compressor 70 may be provided in a single type or a multi type, and in the case of a single type, may be provided in an inverter or a constant speed type.

The rapid cooling condenser 72 may be positioned in the indoor unit 50 so that the second refrigerant of the rapid cooling condenser 72 may be condensed by heat exchange with the first refrigerant of the main evaporator 66.

Hereinafter, as described above, the rapid cooling condenser 72 and the main evaporator 66 are provided to allow the second refrigerant of the rapid cooling condenser 72 to condense by heat exchange with the first refrigerant of the main evaporator 66. The sum is referred to as an intermediate heat exchanger (80).

The intermediate heat exchanger 80 has a first refrigerant pipe 82 through which the first refrigerant flows, and a second refrigerant pipe inside the first refrigerant pipe 82 so that the second refrigerant flows inside. 84 may be provided in the form of a double tube located.

At this time, the double tube of the intermediate heat exchanger (80) is preferably piped so that the second refrigerant pipe (84) concentric with the first refrigerant pipe (82), each other in the flow direction of the first refrigerant and the second refrigerant Can be piped to the opposite.

The double tube of the intermediate heat exchanger 80 is formed of a material suitable for heat exchange such that heat exchange between the first refrigerant and the ambient air and the first refrigerant and the second refrigerant can be easily performed, as well as heat exchange with the ambient air. It is preferable that an intermediate heat exchanger heat exchanger fin 86 is provided on the outside of the double tube so that this is achieved.

The intermediate heat exchanger 80 configured as described above allows the second refrigerant pipe 84 to be positioned inside the first refrigerant pipe 82 so that the second refrigerant directly exchanges heat with the air surrounding the intermediate heat exchanger 80. Do not become.

Meanwhile, the second refrigerant discharged from the rapid cooling condenser 72 is condensed again by the rapid cooling recondenser 78 before being expanded in the rapid cooling expander 74.

The rapid cooling material condenser 78 may be provided such that the second refrigerant discharged from the rapid cooling condenser 72 of the intermediate heat exchanger 80 may be condensed again by heat exchange with the hot outdoor air outside.

That is, the rapid cooling recondenser 78 is connected to the rapid cooling condenser 72 of the intermediate heat exchanger 80 and the rapid cooling expander 74, respectively, and the rapid cooling condenser 72 of the intermediate heat exchanger 80. ) And the outdoor air to the sink refrigerant pipe (78a) so that the second refrigerant discharged from the flow through the sink refrigerant pipe (78a) and the second refrigerant in the sink refrigerant pipe (78a) can be condensed again by heat exchange with the outdoor air. It may be made of a sink blower (78b) for blowing.

Since the second refrigerant in the sink refrigerant pipe 78a dissipates heat and condenses, the sink refrigerant pipe 78a prevents the second refrigerant in the sink refrigerant pipe 78a from dissipating heat into the indoor air. 52). In addition, a plurality of sink refrigerant pipe heat exchange fins may be provided outside the sink refrigerant pipe 78a so that heat exchange with the outdoor air is performed well.

The rapid cooling evaporator 76 is positioned in the indoor unit 50 so that the indoor air cooled in the main evaporator 66 may be directly exchanged with the second refrigerant of the rapid cooling evaporator 76 to be cooled again. It is preferably located just in front of the intermediate heat exchanger 80 in the direction of flow of indoor air.

The rapid cooling evaporator 76 positioned immediately before the intermediate heat exchanger 80 includes a rapid cooling evaporator refrigerant pipe 76a through which the second refrigerant flows, and a plurality of rapid cooling evaporator refrigerant pipes 76a located outside the rapid cooling evaporator refrigerant pipe 76a. The rapid cooling evaporator heat exchange fins 76b may be formed. In particular, the plurality of rapid cooling evaporator heat exchange fins 76b may be arranged in the longitudinal direction of the rapid cooling evaporator refrigerant pipe 76a so as to minimize the flow resistance of the indoor air. Can be arranged.

As described above, as the second refrigerant used in the second cooling cycle, the condensation temperature of the second refrigerant in the main evaporator 66 may be condensed by being exchanged with the first refrigerant in the intermediate heat exchanger 80. The R-23 refrigerant is preferred as it must be a substance lower than the heat of evaporation of one refrigerant.

Further, the second cooling cycle may be performed in the intermediate heat exchanger 80 even if the first refrigerant absorbs not only heat of indoor air but also heat of the second refrigerant of the rapid cooling condenser 72 in the intermediate heat exchanger 80. The capacity of the rapid cooling compressor 70 and the rapid cooling compressor 70 is controlled so that the indoor air can be cooled.

On the other hand, the air conditioner is located in the indoor unit 50, the indoor air is sucked and passes through the intermediate heat exchanger 80 and the rapid cooling evaporator 76 in turn, and generates a blowing force to be discharged back to the room The indoor blower 90 may be further included. In addition, the air conditioner may further include an outdoor blower 92 positioned in the outdoor unit 52 to generate a blowing force so that outdoor air may be blown to the main condenser 62.

In addition, the air conditioner may be selectively operated in a general cooling mode in which indoor air is cooled only by a first cooling cycle or in a rapid cooling mode in which indoor air is cooled by the second cooling cycle after the indoor air is cooled in the first cooling cycle. The control unit (not shown) may be further included.

The controller may control to operate in the normal cooling mode or the rapid cooling mode according to the load amount according to the current indoor temperature and the target indoor temperature difference or the user's operation mode selection.

Looking at the cooling action of the air conditioner according to the present invention configured as described above are as follows.

In the normal mode operation, only the first cooling cycle is operated, and the second cooling cycle is stopped.

That is, the first refrigerant is compressed to high pressure in the main compressor 60, the first refrigerant compressed to high pressure in the main compressor 60 is blown by the outdoor blower 92 in the main condenser 62 Heat exchanged with outdoor air to condense at low temperature, and the first refrigerant condensed in the main condenser 62 is expanded at low temperature and low pressure in the main expander 64.

The first refrigerant expanded in the main expander (64) is evaporated by heat exchange with the indoor air blown by the indoor blower (90) in the main evaporator (66) of the intermediate heat exchanger (80). In the main evaporator 66 of 80, the indoor air heat exchanged with the first refrigerant is cooled.

Further, since the second cooling cycle is in a stopped state, there is no heat exchange between the first refrigerant and the second refrigerant in the intermediate heat exchanger 80, and the indoor air cooled by the intermediate heat exchanger 80 is the indoor blower ( 90 is blown to the rapid cooling evaporator 76, but is immediately discharged from the rapid cooling evaporator 76 to the room without heat exchange with the second refrigerant.

 On the other hand, when operating in the rapid cooling mode, both the first and second cooling cycles are operated.

That is, the first refrigerant is circulated through the main compressor 60, the main condenser 62, the main expander 64, and the main evaporator 66 of the intermediate heat exchanger 80 in order. Heat exchanged with the indoor air blown by the indoor blower (90) in the main evaporator (66) of the evaporation. In the main evaporator 66 of the intermediate heat exchanger 80, indoor air is cooled by heat exchange with the first refrigerant.

In addition, the second refrigerant is compressed to a high pressure in the rapid cooling compressor 70, the second refrigerant compressed in the rapid cooling compressor 70 is the rapid cooling condenser 72 of the intermediate heat exchanger (80) Heat exchanged with the first refrigerant of the main evaporator 66 of the intermediate heat exchanger 80 to condense.

The second refrigerant condensed in the rapid cooling condenser 72 of the intermediate heat exchanger 80 is blown out of the rapid cooling ash condenser 78 by the sink blower 78b to the rapid cooling ash condenser 78. Heat exchanged with the air to condense again, and the second refrigerant condensed again in the rapid cooling condenser 78 is expanded in the rapid cooling expander 74.

The low temperature and low pressure second refrigerant expanded in the rapid cooling expander 74 is evaporated by heat exchange with the indoor air cooled in the main evaporator 66 of the intermediate heat exchanger 80 in the rapid cooling evaporator 76. The indoor air is heat-exchanged with the second refrigerant in the rapid cooling evaporator 76, cooled again, and then discharged into the room.

Of course, during the rapid cooling mode operation, the second refrigerant also has the rapid cooling compressor 70, the rapid cooling condenser 72, the rapid cooling ash condenser 78, the rapid cooling expander 74, and the rapid cooling evaporator 76. ) In order to cool the room.

In the air conditioner according to the present invention configured as described above, the indoor air is cooled by heat exchange with the main evaporator of the first refrigerant in the normal cooling mode, and the indoor air is cooled by the main evaporator and the second refrigerant of the first refrigerant in the rapid cooling mode. After being cooled by heat exchange with an intermediate heat exchanger consisting of a rapid cooling condenser, the second refrigerant is cooled again in the rapid cooling evaporator of the second refrigerant, whereby a cool and pleasant rapid cooling can be immediately performed whenever necessary. Flows and a double pipe structure in which the second refrigerant flows therein has the advantage that the first refrigerant can be directly heat-exchanged with the surrounding air in the rapid cooling mode, and the second refrigerant can be condensed by the first refrigerant without directly exchanging the ambient air. There is this.

Claims (8)

  1. A main compressor, a main condenser, and a main expander, in which the first refrigerant is sequentially compressed, condensed, and expanded;
    A rapid cooling compressor in which the second refrigerant is compressed;
    An intermediate heat exchanger in which ambient air is cooled and the second refrigerant discharged from the rapid cooling compressor is condensed by the heat of vaporization of the first refrigerant discharged from the main expander;
    A rapid cooling recondenser for condensing the second refrigerant condensed in the rapid cooling condenser again with ambient air;
    A rapid cooling expander for expanding the second refrigerant discharged from the intermediate heat exchanger;
    A rapid cooling evaporator located in front of the intermediate heat exchanger such that the air passing through the intermediate heat exchanger is cooled again by the heat of vaporization of the second refrigerant discharged from the rapid cooling expander;
    The intermediate heat exchanger is provided with a double tube structure in which a first refrigerant flows on an outer side thereof and a second refrigerant flows on an inner side thereof.
  2. delete
  3. The method according to claim 1,
    The double tube of the intermediate heat exchanger is provided with the first refrigerant and the second refrigerant is characterized in that the opposite flow to each other.
  4. The method according to claim 1 or 3,
    And the rapid cooling material condenser comprises a sink coolant tube through which the second refrigerant flows, and a sink blower configured to generate a blowing force so that the sink refrigerant tube exchanges heat with the surrounding air.
  5. The method according to claim 1 or 3,
    The rapid cooling evaporator is an air conditioner comprising a rapid cooling evaporator refrigerant pipe and a plurality of rapid cooling evaporator fins fitted to the outside of the rapid cooling evaporator refrigerant pipe.
  6. The method according to claim 1 or 3,
    And the first refrigerant is R-22 refrigerant, and the second refrigerant is R-23 refrigerant.
  7. The method according to claim 1 or 3,
    The air conditioner is an air conditioner, characterized in that further comprises an indoor blower for generating a blowing force so that indoor air passes through the intermediate heat exchanger and rapid cooling evaporator in turn.
  8. The method according to claim 1 or 3,
    The air conditioner further includes a control unit for allowing air to be cooled by the cooling cycle of the first refrigerant in the normal cooling mode, and allowing the air to be rapidly cooled by the cooling cycle of the first and second refrigerants in the rapid cooling mode. Air conditioner, characterized in that.
KR20050049319A 2005-06-09 2005-06-09 Air-Condition KR100697088B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20050049319A KR100697088B1 (en) 2005-06-09 2005-06-09 Air-Condition

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR20050049319A KR100697088B1 (en) 2005-06-09 2005-06-09 Air-Condition
CA 2537864 CA2537864A1 (en) 2005-06-09 2006-02-28 Air conditioner
US11/373,110 US20060277940A1 (en) 2005-06-09 2006-03-13 Air conditioner
JP2006071056A JP2006343088A (en) 2005-06-09 2006-03-15 Air conditioner
CNB2006100680621A CN100516713C (en) 2005-06-09 2006-03-24 Air conditioner

Publications (2)

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KR20060128130A KR20060128130A (en) 2006-12-14
KR100697088B1 true KR100697088B1 (en) 2007-03-20

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US (1) US20060277940A1 (en)
JP (1) JP2006343088A (en)
KR (1) KR100697088B1 (en)
CN (1) CN100516713C (en)
CA (1) CA2537864A1 (en)

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US10247481B2 (en) 2013-01-28 2019-04-02 Carrier Corporation Multiple tube bank heat exchange unit with manifold assembly
US10337799B2 (en) 2013-11-25 2019-07-02 Carrier Corporation Dual duty microchannel heat exchanger

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CN100516713C (en) 2009-07-22
CA2537864A1 (en) 2006-12-09
JP2006343088A (en) 2006-12-21
KR20060128130A (en) 2006-12-14
US20060277940A1 (en) 2006-12-14

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