EP1541946A1 - Verdampfungsanlage für eine Wärmepumpe - Google Patents
Verdampfungsanlage für eine Wärmepumpe Download PDFInfo
- Publication number
- EP1541946A1 EP1541946A1 EP04101755A EP04101755A EP1541946A1 EP 1541946 A1 EP1541946 A1 EP 1541946A1 EP 04101755 A EP04101755 A EP 04101755A EP 04101755 A EP04101755 A EP 04101755A EP 1541946 A1 EP1541946 A1 EP 1541946A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchange
- exchange fin
- evaporator
- coolant tube
- refrigeration apparatus
- 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.)
- Granted
Links
Images
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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
-
- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/14—Collecting or removing condensed and defrost water; Drip trays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-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
- F28D1/02—Heat-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
- F28D1/04—Heat-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
- F28D1/047—Heat-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
- F28D1/0477—Heat-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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/06—Refrigerators with a vertical mullion
-
- 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
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
- F28D2021/0071—Evaporators
Definitions
- the present invention relates to n evaporator installation for a heat pump, the installation comprising an evaporator having a coolant tube coupled to a heat exchange fm.
- a known heat pump includes a compressor for compressing coolant vapour, a condenser for condensing the coolant vapour, a capillary tube for reducing the pressure and temperature of the liquefied coolant and an evaporator for in which heat is drawn from the surrounding air to evaporate the low pressure, low temperature liquefied coolant.
- Such heat pumps may be used in refrigerator, freezers and air-conditioning apparatuses.
- refrigerators include a main body partitioned into a freezer compartment and a refrigerator compartment, a door or doors providing access to the freezer and refrigerator compartments and a heat pump for cooling the freezer and refrigeration compartments.
- the freezer and refrigerator compartments are cooled by circulating air, cooled by the evaporator of the heat pump.
- Figure 1 is a cross sectional view of the evaporator of a conventional heat pump.
- the evaporator 120 of a conventional heat pump has a coolant tube 123, through which coolant circulates, and a heat exchange fins 130.
- Frost tends to form on the coolant tube 123 and heat exchange fins 130.
- the frost decreases the efficiency of the evaporator and generally a defrosting apparatus (not shown) such as a heater is provided to remove the frost.
- the evaporator 120 includes a plurality of exchange fins 130 and the coolant tube 123 passes through coolant tube accommodating parts 131 in the fins 130. Also, the coolant tube 123 is supported in the refrigerator by a coolant tube supporter 125. Accordingly, in the conventional refrigerator, the heat exchange efficiency is determined by the heat exchange area provided by the coolant tube 123 and the heat exchange fins 130.
- An evaporator installation is characterised by a surface down which liquid will flow and the fin having a lowest point positioned with respect to said surface such that liquid transfers readily from the fin to the surface.
- the corners of the or each fin over which liquid should flow are rounded to promote liquid flow thereover.
- a refrigerator 1 includes a main body 10 having a freezer compartment 13 and a refrigerator compartment 14, doors 5 providing access to the freezer and refrigerator compartments 13, 14, a heat pump, provided at the back of the main body 10 and equipped with an evaporator 20 to generate cooling air for cooling the freezer compartment 13 and the refrigerator compartment 14, and a defrosting apparatus 40 to remove frost that has formed on the evaporator 20.
- the freezer compartment 13 and the refrigerator compartment 14 have shelves 15 and drawers 16 to accommodate items such as food.
- the evaporator accommodating part 18 is covered by an accommodating part cover 19.
- the evaporator accommodating part 18 is provided on a rear of the freezer compartment 13. However, the evaporator accommodating part 18 may also be provided on a rear of the refrigerator compartment 14, or on both of the rear areas of the freezer compartment 13 and the refrigerator compartment 14.
- the evaporator accommodating part 18 includes bosses 18a coupling the evaporator accommodating part 18 to the evaporator 20 and the accommodating part cover 19 by screws (not shown).
- the refrigeration apparatus has a compressor (not shown) for compressing coolant vapour, a condenser (not shown) for condensing the compressed coolant to liquefy it, a capillary tube (not shown) for reducing the pressure and temperature of the liquefied coolant, the evaporator 20 in which the low pressure, low temperature coolant is evaporated using heat taken from the surrounding air and a connecting pipes 27 connecting the compressor, the capillary tube and the evaporator 20 to enable the coolant to circulate. Accordingly, the freezer compartment 13 and the refrigerator compartment 14 are cooled by circulating air, cooled by the evaporator 20, through the freezer compartment 13 and the refrigerator compartment 14.
- the evaporator has a coolant tube 23, which conveys the coolant, and heat exchange fins 30.
- the heat exchange fins 30 each have at least one coolant tube accommodating part 31 where they are coupled to the coolant tube 23, as shown in Figure 5.
- the evaporator 20 is provided with coolant tube supporters 25 on opposite sides of the evaporator 20 to support the coolant tube 23.
- the coolant tube 23 is coupled with the connecting pipe 27 and the coolant tube 23 is bent so that it extends back and forth across the evaporator from top to bottom at the front and then bottom to top at the back. U-shaped portions of the coolant tube 23 project through the coolant tube supporters 25.
- the coolant tube 23 may be provided in different configurations such as a single structure, or a triple structure.
- the coolant tube supporters 25 are provided on opposite sides of the evaporator to support the coolant tube 23 in the correct shape.
- the coolant tube supporters 25 are coupled to the evaporator accommodating part 18 by screws.
- each heat exchange fin 30 is substantially a parallelogram which is inclined at an angle 'a' so that a longitudinal direction of the heat exchange fin 30 forms an acute angle relative to the vertical to make defrosted water drops flow to a bottom tip 33 of the heat exchange fin.
- a longitudinal direction line 'A' of the heat exchange fin 30 and a vertical direction line 'B' along which the water drops falls should form an acute angle 'a'.
- the acute angle should be between 50 degrees and 75 degrees.
- the angle 'a' formed by the longitudinal direction line 'A' of the heat exchange fin 30 and the vertical direction line 'B' may be between 40 degrees and 50 degrees so that the water drops formed on the heat exchange fin 30 can flow to the bottom tip 33 easily.
- each heat exchange fin 30 is inclined to one side relative to the vertical direction, and the bottom tip 33 of each heat exchange fin 30 is adjacent to a wall where the evaporator 20 is installed .
- the bottom tip 33 of the heat exchange fin 30 is inclined so that the bottom tip 33 is adjacent to an inner wall of the evaporator accommodating part 18. Accordingly, the water drops that flowed to the bottom tip 33 of the heat exchange fin 30 can flow downward along the wall of the evaporator accommodating part 18.
- a lower area of the evaporator accommodating part 18 may include a discharging hole (not shown) to discharge the water from the heat exchange fin 30.
- the lower area of the evaporator accommodating part 18 may alternatively be provided with an additional water accommodating part (not shown) to gather the water drops.
- Round corner parts 35 are provided on opposite sides of the heat exchange fins 30.
- the heat exchange fins 30 may be thin parallelogram-shaped plates, they may also have different polygonal shapes.
- the surfaces of the heat exchange fins 30 may have at least one protrusion 37 protruding orthogonally from the surface of the heat exchange fin 30.
- the bottom tip 33 of the heat exchange fin 30 may be in contact with the wall of the evaporator accommodating part 18. Also, an end of the bottom tip 33 is formed to be sharp so that the water drops formed on the heat exchange fin 30 flow along toward the wall of the evaporator accommodating part 18 easily.
- the corner parts 35 include left and right areas between the top and bottom tips 32, 33 of the heat exchange fin 30, and may be rounded so that the water drops formed on top areas of the heat exchange fins 30 flow toward the bottom tip 33 easily. Also, the corner parts 35 are preferably rounded to form a partial circle with a radius between 5 mm and 20 mm. However, the radius may be between 3 mm and 5 mm, or between 20 mm and 50 mm, or over 50 mm according to a size of the heat exchange fin 30, so that the water drops formed on the top area of the heat exchange fins 30 flow toward the bottom tips 33 easily.
- the coolant tube accommodating parts 31 are formed through the heat exchange fins 30 to accommodate the coolant tube 23, and may be provided in pairs. However, there may be one or three coolant tube accommodating parts 31 according to a shape of the coolant tube 23.
- the protrusions 37 function to prevent the heat exchange fins 30 being bent easily. Also, the protrusions 37 can improve heat exchange efficiency by causing turbulence in the air flow around the heat exchange fins 30. Although three protrusions 37 are shown, a different number, e.g. one, two or four, may be provided on each heat exchange fin 30.
- the defrosting apparatus includes a defrosting heater 41 and a heater supporter 43 supporting the defrosting heater 41.
- the heater supporter 43 is installed at the bottom of the evaporator accommodating part 18 so that the defrosting heater 41 is positioned below the evaporator 20.
- the defrosting apparatus 40 may be provided to the front or rear of the evaporator 2, and it may include different heating means other than the defrosting heater 41.
- the compressor (not shown) provided in the refrigeration apparatus stops operating and the defrosting heater 41 is energised.
- Water drops form as the frost, stuck on the coolant tube 23 and the heat exchange fin 30 in the evaporator 20, melts.
- the water drops flow toward the bottom tips 33 easily along the surfaces and rounded edges of the heat exchange fins 30 by gravity.
- the water drops that reach the bottom tips 33 keep flowing downward along the wall of the evaporator accommodating part 18 to be discharged easily.
- the water drops formed on the heat exchange fins 30 can flow to the bottom tips 33 easily without accumulating on the corner parts 35 because the heat exchange fins 30 are provided with an inclination and the corner part 35 is rounded.
- the refrigeration apparatus can improve performance of the evaporator by preventing the water drops from accumulating and being frozen on the heat exchange fins and on the coolant tube. Also, a refrigerator provided with such refrigeration apparatus uses less power.
- this embodiment of the present invention describes a refrigeration apparatus applied to a refrigerator, such refrigeration apparatus may be applied not only to the refrigerator, but also to various heat exchangers such as an air conditioning apparatus.
- the embodiment of the present invention can improve the performance of the evaporator provided in the refrigeration apparatus. Also the refrigerator provided with such refrigeration apparatus can reduce power consumption.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Removal Of Water From Condensation And Defrosting (AREA)
- Defrosting Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2003090470 | 2003-12-12 | ||
KR10-2003-0090470A KR100506610B1 (ko) | 2003-12-12 | 2003-12-12 | 냉동장치 및 그 냉동장치를 갖는 냉장고 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1541946A1 true EP1541946A1 (de) | 2005-06-15 |
EP1541946B1 EP1541946B1 (de) | 2008-08-20 |
Family
ID=34511214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04101755A Expired - Lifetime EP1541946B1 (de) | 2003-12-12 | 2004-04-27 | Verdampfungsanlage für eine Wärmepumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050126197A1 (de) |
EP (1) | EP1541946B1 (de) |
KR (1) | KR100506610B1 (de) |
CN (1) | CN1295466C (de) |
DE (1) | DE602004015919D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1914499A1 (de) * | 2006-10-16 | 2008-04-23 | Irsap Spa | Wärmetauscher mit schräg gestellten Rohren |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101055110B (zh) * | 2006-09-29 | 2010-05-26 | 曹爱国 | 一种热交换器及具有该热交换器的室内热电空调器 |
CN100532976C (zh) * | 2006-09-29 | 2009-08-26 | 曹爱国 | 一种热电空调单元及具有该热电空调单元的热电空调器 |
CN102519184A (zh) * | 2011-12-04 | 2012-06-27 | 苏州方暨圆节能科技有限公司 | 空调节能除霜结构 |
CN102628658A (zh) * | 2012-01-01 | 2012-08-08 | 黄华 | 一种便于冰、霜从换热器表面脱离的方法及应用 |
DE102012112159A1 (de) * | 2012-12-12 | 2014-06-12 | Krones Ag | Vorrichtung zum Behandeln von Getränken mit Wandungselementen aus Kunststoff |
EP3109572B1 (de) * | 2015-06-22 | 2019-05-01 | Lg Electronics Inc. | Kühlschrank |
JP7162471B2 (ja) * | 2018-08-30 | 2022-10-28 | リンナイ株式会社 | 熱交換装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4041727A (en) * | 1975-09-02 | 1977-08-16 | Borg-Warner Corporation | Evaporator assembly |
US4926932A (en) * | 1987-08-09 | 1990-05-22 | Nippondenso Co., Ltd. | Plate type heat exchanger |
US20020195235A1 (en) * | 1999-12-21 | 2002-12-26 | Falta Steven R. | Evaporator with enhanced condensate drainage |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2667041A (en) * | 1948-10-27 | 1954-01-26 | Ray M Henderson | Evaporator and drip catcher arrangement for refrigerating apparatus |
US2728204A (en) * | 1952-08-08 | 1955-12-27 | William J Harbers | Coil pan construction |
US3750418A (en) * | 1972-03-20 | 1973-08-07 | Borg Warner | Evaporator and condensate collector arrangement for refrigeration apparatus |
WO1983001997A1 (en) * | 1981-11-30 | 1983-06-09 | Anders, Gene, A. | Heat exchanger core with varied-angle tubes |
KR900006245B1 (ko) * | 1985-04-19 | 1990-08-27 | 마쯔시다덴기산교 가부시기가이샤 | 열교환기 |
US5499514A (en) * | 1994-09-15 | 1996-03-19 | Whirlpool Corporation | Defrost water drain system for a refrigerator |
US5552581A (en) * | 1994-11-10 | 1996-09-03 | Wirekraft Industries Inc. | Defrost heater for cooling appliance |
US6435265B1 (en) * | 1995-01-17 | 2002-08-20 | Ness Lakdawala | Gravity cooling unit |
JPH10160284A (ja) * | 1996-11-29 | 1998-06-19 | Sanyo Electric Co Ltd | 吸収式ヒートポンプ装置 |
JPH10267506A (ja) * | 1997-03-28 | 1998-10-09 | Sharp Corp | 冷却装置 |
US5901570A (en) * | 1997-06-30 | 1999-05-11 | Daewoo Electronics Co., Ltd. | Refrigerator having a refrigeration system |
DE19859985A1 (de) * | 1998-12-23 | 2000-06-29 | Bsh Bosch Siemens Hausgeraete | Vorrichtung zur Halterung eines in einem Haushalt-Umluft-Kältegerät angeordneten Lamellenverdampfers |
BR9906192A (pt) * | 1999-12-13 | 2001-09-18 | Multibras Eletrodomesticos Sa | Sistema e método de degelo automático para aparelho de refrigeração |
EP1490638A1 (de) * | 2002-03-22 | 2004-12-29 | Arcel K A. . | Ein verdampfer und zugehöriges herstellungsverfahren |
-
2003
- 2003-12-12 KR KR10-2003-0090470A patent/KR100506610B1/ko not_active IP Right Cessation
-
2004
- 2004-04-09 US US10/821,172 patent/US20050126197A1/en not_active Abandoned
- 2004-04-27 DE DE602004015919T patent/DE602004015919D1/de not_active Expired - Lifetime
- 2004-04-27 EP EP04101755A patent/EP1541946B1/de not_active Expired - Lifetime
- 2004-05-10 CN CNB2004100421914A patent/CN1295466C/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4041727A (en) * | 1975-09-02 | 1977-08-16 | Borg-Warner Corporation | Evaporator assembly |
US4926932A (en) * | 1987-08-09 | 1990-05-22 | Nippondenso Co., Ltd. | Plate type heat exchanger |
US20020195235A1 (en) * | 1999-12-21 | 2002-12-26 | Falta Steven R. | Evaporator with enhanced condensate drainage |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1914499A1 (de) * | 2006-10-16 | 2008-04-23 | Irsap Spa | Wärmetauscher mit schräg gestellten Rohren |
Also Published As
Publication number | Publication date |
---|---|
US20050126197A1 (en) | 2005-06-16 |
CN1295466C (zh) | 2007-01-17 |
EP1541946B1 (de) | 2008-08-20 |
DE602004015919D1 (de) | 2008-10-02 |
KR100506610B1 (ko) | 2005-08-08 |
KR20050058551A (ko) | 2005-06-17 |
CN1626993A (zh) | 2005-06-15 |
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