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WO2008147361A1 - Échangeur de chaleur à écoulement parallèle avec connecteurs - Google Patents

Échangeur de chaleur à écoulement parallèle avec connecteurs Download PDF

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Publication number
WO2008147361A1
WO2008147361A1 PCT/US2007/012929 US2007012929W WO2008147361A1 WO 2008147361 A1 WO2008147361 A1 WO 2008147361A1 US 2007012929 W US2007012929 W US 2007012929W WO 2008147361 A1 WO2008147361 A1 WO 2008147361A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubes
heat exchange
set forth
refrigerant
flat heat
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.)
Ceased
Application number
PCT/US2007/012929
Other languages
English (en)
Inventor
Igor B. Vaisman
Michael F. Taras
Joseph J. Sangiovanni
Satyam Bendapudi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrier Corp
Original Assignee
Carrier Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Priority to US12/602,329 priority Critical patent/US20100170664A1/en
Priority to HK11100100.4A priority patent/HK1145870B/xx
Priority to PCT/US2007/012929 priority patent/WO2008147361A1/fr
Priority to EP07795595.3A priority patent/EP2165141A4/fr
Priority to CN2007801001245A priority patent/CN101772687B/zh
Publication of WO2008147361A1 publication Critical patent/WO2008147361A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F28D1/053—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 straight
    • F28D1/0535—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 straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • 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
    • 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
    • F28F1/126—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 consisting of zig-zag shaped fins

Definitions

  • This invention relates generally to air conditioning and refrigeration systems and, more particularly, to parallel flow evaporators thereof.
  • a definition of a so-called parallel flow heat exchanger is widely used in the air conditioning and refrigeration industry now and designates a heat exchanger with a plurality of parallel passages, among which refrigerant is distributed to flow in an orientation generally substantially perpendicular to the refrigerant flow direction in the inlet and outlet manifolds.
  • Refrigerant maldistribution in refrigerant system evaporators is a well-known phenomenon. It causes significant evaporator and overall system performance degradation over a wide range of operating conditions. Maldistribution of refrigerant may occur due to differences in flow impedances within evaporator channels, non-uniform airflow distribution over external heat transfer surfaces, improper heat exchanger orientation or poor manifold and distribution system design. Maldistribution is particularly pronounced in parallel flow evaporators due to their specific design with respect to refrigerant routing to each evaporator circuit. Attempts to eliminate or reduce the effects of this phenomenon on the performance of parallel flow evaporators have been made with little or no success.
  • Refrigerant maldistribution is one of the primary concerns and obstacles for the implementation of this technology in the evaporator applications.
  • refrigerant maldistribution in parallel flow heat exchangers occurs because of unequal pressure drop inside the channels and in the inlet and outlet manifolds, as well as poor manifold and distribution system design.
  • manifolds the difference in length of refrigerant paths, phase separation and gravity are the primary factors responsible for maldistribution.
  • variations in the heat transfer rate, airflow distribution, manufacturing tolerances, and gravity are the dominant factors.
  • minichannels and microchannels which in turn negatively impacted refrigerant distribution. Since it is extremely difficult to control all these factors, many of the previous attempts to manage refrigerant distribution, especially in parallel flow evaporators, have failed.
  • the two-phase flow enters the inlet manifold at a relatively high velocity, the liquid phase (droplets of liquid) is carried by the momentum of the flow further away from the manifold entrance to the remote portion of the header.
  • the channels closest to the manifold entrance receive predominantly the vapor phase and the channels remote from the manifold entrance receive mostly the liquid phase.
  • the individual flat heat exchange tubes of an evaporator are interconnected to a refrigerant delivery member by way of connector tubes such that the two phase refrigerant flows first from the refrigerant delivery member into the connector tubes and then into the individual flat heat exchange tubes to thereby obtain improved distribution of refrigerant flow.
  • the connector tubes are connected to a common inlet manifold and extend generally orthogonally therefrom.
  • the connector tubes are cylindrical in shape, and the flat heat exchange tubes are inserted into longitudinal slots formed in the connector tubes to form tee joints.
  • the connector tubes have orifices at their one end such that the refrigerant entering the connector tube is expanded in the process to thereby improve uniform refrigerant distribution.
  • each of the connector tubes is fluidly connected directed to a traditional refrigerant distributor by way of an inlet tube.
  • FIG. 1 is a schematic illustration of the present invention as incorporated into a parallel flow evaporator.
  • FIG. 2 is a side view thereof.
  • FIG. 3 is an end view thereof.
  • FIG. 4 is an enlarged view of a portion thereof.
  • FIG. 5 is a sectional view as seen along lines 5-5 of Fig. 4.
  • FIGS. 6A and 6B are respective front and top view of a tee connector.
  • FIGS. 7 A and 7B are schematic illustrations of an alterative embodiment thereof.
  • FIGS. 8 and 9 are schematic illustrations of another alternative embodiment thereof.
  • FIG. 10 is a schematic illustration of another alternative embodiment thereof.
  • FIG. 11 is a schematic illustration of another alternative embodiment thereof.
  • FIG. 12 is a schematic illustration of another alternative embodiment thereof.
  • FIGS. 13A and 13B are schematic illustrations of another alternative embodiment thereof.
  • FIGS. 14 and 15 are schematic illustrations of another alterative embodiment thereof.
  • FIG. 16 is a schematic illustration of yet another embodiment thereof.
  • FIG. 10 the invention is shown generally at 10 as incorporated into a parallel flow heat exchanger 11 which includes an inlet manifold 12, a plurality of flat heat exchange tubes 13 and an outlet manifold 14.
  • Each of the flat heat exchange tubes 13 is fluidly connected to a respective connecting tube as shown at 16, 17, 18 and 19 which are, in turn, fluidly connected to the inlet manifold 12.
  • two-phase refrigerant flow enters an inlet port 21 of the inlet manifold 12 and flows toward both ends of the inner manifold 12. It then flows to the individual connector tubes 16, 17, 18 and 19 and then to the respective flat heat exchange tubes 13, after which it passes to the outlet manifold 14 and exits from the outlet port 22.
  • Such a design configuration allows for sufficiently small diameters of the inlet manifold 12 and connecting tubes 16-19, which are favorable for refrigerant distribution among the flat heat exchange tubes 13.
  • the connector tubes 16, 17 and 18 are v cylindrical in a cross-section and have linear slots 23, 24 and 26, respectively formed therein for receiving the respective flat heat exchange tubes 13 therein.
  • the degree of the penetration of the fiat heat exchange tubes 13 into the respective connector tubes 16, 17 and 18 is a matter of a design choice and may be selected to have a significant penetration as shown, or they may have little or no penetration such that the ends of the heat exchange tubes 13 are substantially flush with the inner walls of the connector tubes.
  • the flat heat exchange tubes 13 may have different penetration depths, which may be selected depending on the position of the inlet port 21 to provide substantially equal inlet refrigerant flow impedances among the heat exchange tubes 13.
  • the flat heat exchange tubes 13 are then fixed in their positions by a process such as welding, furnace brazing or the like.
  • the flat heat exchange tubes 13 may include a plurality of spaced ports 27 of any suitable cross section and have an overall height of H and an overall width of W.
  • One end 28 of each connector tube, e.g. 17, is open and connected to the inlet manifold 12 as indicated above.
  • the other end 29 can be sealed as shown in Fig. 5, or it may be interconnected to another connector tube as will be described hereinafter.
  • Figs. 4 and 5 show connectors 16, 17, and 18 as tubes with a cylindrical cross-section.
  • the connectors may have elliptical, square, rectangular, triangular, or of any other possible shape.
  • the shape of the cross-section and the area may be different along the centerline of the connectors.
  • Figs.4 and 5 imply one connector per one flat heat exchange tube. As should be understood, a number of adjacent flat heat exchange tubes may be connected to one connector. In this case, multiple slots have to be made in the connectors to accommodate multiple flat heat exchange tubes.
  • the parallel flow heat exchanger may include sections with flat heat exchange tubes of different width to accommodate substantially different airflow amounts passing over these sections.
  • Figs. 4 and 5 show connectors 16, 17, and 18 as straight tubes. Such connectors are called two-end connectors. As should be understood, the connectors may be fabricated as triple-end connectors, particularly as a tee connector shown on
  • the tee connector has a first side end 101, a second side end 102, and a central end 103. As should be also understood, each end may have a plurality of ends. Such connectors are called multiple-end connectors. It is obvious that at least one end of the connectors must be active. All remaining ends, if there are any, are inactive and sealed.
  • Figs. 6A and 6B show the ends 101, 102, and 103 having their centerline in one plane and shaped as the letter T.
  • each end of the two-end, triple-end, and multiple-end connectors may have any possible shape of their centerlines.
  • outlet header 14 has been shown as being directly connected to the flat tube channels 13, it should be understood that connector tubes similar to the connector tubes 16-19 may be used to interconnect the flat heat exchange tubes 13 to the outlet manifold 14.
  • the embodiment as described above shows the individual connector tubes 16-19 (which are of the two-end connector type) being aligned in parallel arrangement and extending orthogonally from the inlet manifold 12. It also shows them as being connected such that the flow of refrigerant therein is parallel. It should be understood that, the connector tubes 16-19 may be interconnected in serial flow relationship and may be further connected directly to the inlet port, without the need for an inlet manifold 12. Such an embodiment is shown in Figs. 7A and 7B wherein an elbow 28 interconnects the ends of connector tubes 16 and 17, an elbow 32 interconnects the ends of connector tubes 17 and 18, and an elbow 33 interconnects the ends of connector tubes 18 and 19 as shown.
  • the refrigerant flow then enters the inlet port 34, passes through the connector tube 16, one flat heat exchange tube 13, the elbow 31 , the connector tube 17, another flat heat exchange tube 13, the elbow 32, the connector tube 18, the elbow 33 and the connector tube 19. Eventually, the refrigerant flows out of the outlet port 36.
  • Figs. 7A and 7B demonstrate a heat exchanger having tee connectors
  • Figs. 8 and 9 show a heat exchanger having one circuit and four passes. As should be understood, any number of passes per circuit is possible, whatever is appropriate for a particular application. Also, it may be appropriate to have multiple circuits.
  • Fig. 10 shows a heat exchanger having three equal parallel circuits.
  • Each circuit has its own inlet port 34a, 34b, and 34c and its own outlet port 36a, 36b, and 36c, respectively.
  • the refrigerant flow in the Fig.10 embodiment is generally downward, as it enters at the top and flows down to the bottom. However, it is possible to have a reversed generally upward (refrigerant enters at the bottom and flows up to the top) or a mixed flow arrangement.
  • the heat exchanger design in Fig. 10 provides two-end connectors, for the top circuit, 116, 16, 17, 117, 118, 18, 19, and 119, and each connector has one active end and one inactive end. [0046]
  • FIG. 11 demonstrates a three-circuit, four-pass heat exchanger with tee connectors 116, 16, 17, 117, 118, 18, 19, and 119. Each tee connector has one active end and two inactive ends. 10047] Figs. 10 and 11 demonstrate the embodiments having the same number of passes in each circuit. As should be understood, the number of passes for each circuit may be different.
  • the heat exchangers described above may operate as condensers and evaporators. Usually, condensers have vapor at the inlet and liquid at the outlet. Due to the difference in densities of liquid and vapor phases, the condensers are typically more efficient if they have more inlets and fewer outlets.
  • Fig. 12 shows a three- circuit heat exchanger having three inlets 34a, 34b, and 34c; one outlet 36; tee- connectors 116, 16, 17, 117, 118, 18, 119; and four-end connector 19 with two sealed side ends.
  • Figs. 13 A and 13B show a similar heat exchanger where the four- end connector 19 has one sealed side end.
  • the heat exchangers shown on Figs. 12, 13 A and 13B may be applied as components of a heat pump system and operate as condensers and evaporators.
  • Evaporators have a two-phase refrigerant at their inlet and typically vapor at the outlet. Due to the differences in densities of liquid and vapor phases, the evaporators may be more efficient if they have fewer inlets and more outlets. Since the operation as a condenser and the operation as an evaporator are reversed, with respect to the refrigerant flow direction, the embodiments in Figs. 12, 13A and 13B should have an appropriate number of inlets and outlets for both operational modes.
  • Heat exchangers operating as evaporators should have means for distribution of the two-phase refrigerant.
  • Another embodiment which is applicable for evaporators wherein an inlet manifold is not used is that shown in Figs. 14 and 15, wherein a traditional distributor 40 is fluidly connected to the individual connector tubes 16-19 by way of small diameter distributor tubes 38, 39, 41 and 42 respectively.
  • an expansion device (not shown) is provided upstream of the distributor 40 such that the two-phase refrigerant flow is passed from the distributor 40 to the individual small diameter distributor tubes 38, 39, 41 and 42.
  • the two-phase refrigerant flow then passes to the individual connector tubes 16-19 and is further distributed in the manner described hereinabove.
  • FIG. 14 and 15 imply that the number of distributor tubes corresponds to the number of flat heat exchange tubes. It should be understood that, in general, each circuit may have a number of passes with the number of distributor tubes corresponding to the number of circuits. Also, as before with the connector tubes, there is an option to use one distributor for several circuits. [00S2] A variation of the Figs. 1-5 embodiment is shown in Fig. 16 wherein, rather than having an open-end connection between the connector tube 17 and the inlet manifold 12, as shown in Fig. 5, both ends 28 and 29 of the connector tube 19 are closed, and an orifice 42 is provided in the end 28 as shown.
  • the orifice 42 may have a plurality of orifices arranged in parallel and/or in series.
  • Fig 16 shows that the number of orifices 42 (or their pluralities) corresponds to the number of flat heat exchange tubes. It should be understood that, in general, each circuit may have several passes with the number of the orifices 42 (or their pluralities) corresponding to the number of circuits. Also, there is an option to use one orifice 42 (or its plurality) for several circuits.
  • One configuration implies that the manifold 12 operates as a receiver, and the orifices 42 along the manifold 12 operate as expansion devices, providing isenthalpic expansion from a condenser pressure to the evaporator pressure.
  • Another arrangement includes an expansion device attached to the manifold 12. The expansion device provides isenthalpic expansion from the condenser pressure to a pressure which is higher than the evaporator pressure and lower than the condenser pressure.
  • the orifices 42 function as a refrigerant distributor of the two-phase refrigerant providing single, double, or multiple expansions from the pressure downstream of the expansion device to the evaporator pressure.
  • the present design features allow for the use of substantially wider heat exchange tubes, reduced fin density and/or increased fin height, without comprising performance characteristics and cost of the heat exchanger.
  • the present invention is intended for use with a heat exchanger that can be oriented horizontally, vertically, or inclined. That is, although the flat heat exchange tubes are shown as being horizontally oriented, the present invention would also be useful with vertically oriented and inclined flat heat exchange tubes.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

L'échangeur de chaleur à écoulement parallèle objet de la présente invention comprend une pluralité de tubes connecteurs qui relient de manière fluide les tubes d'échange de chaleur plats individuels à un élément de transport de réfrigérant de sorte que le réfrigérant coule perpendiculairement le long des tubes connecteurs pour entrer dans les tubes d'échange de chaleur plats afin d'améliorer la distribution du réfrigérant. L'élément de distribution du réfrigérant peut être un collecteur d'admission, un orifice d'entrée ou bien un distributeur de réfrigérant. Les tubes connecteurs peuvent être reliés de manière à diriger le flux en parallèle ou en série, et un orifice peut être placé à l'extrémité d'admission afin d'améliorer la distribution du réfrigérant.
PCT/US2007/012929 2007-06-01 2007-06-01 Échangeur de chaleur à écoulement parallèle avec connecteurs Ceased WO2008147361A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US12/602,329 US20100170664A1 (en) 2007-06-01 2007-06-01 Parallel flow heat exchanger with connectors
HK11100100.4A HK1145870B (en) 2007-06-01 Parallel flow heat exchanger with connectors
PCT/US2007/012929 WO2008147361A1 (fr) 2007-06-01 2007-06-01 Échangeur de chaleur à écoulement parallèle avec connecteurs
EP07795595.3A EP2165141A4 (fr) 2007-06-01 2007-06-01 Échangeur de chaleur à écoulement parallèle avec connecteurs
CN2007801001245A CN101772687B (zh) 2007-06-01 2007-06-01 具有连接器的并流式热交换器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/012929 WO2008147361A1 (fr) 2007-06-01 2007-06-01 Échangeur de chaleur à écoulement parallèle avec connecteurs

Publications (1)

Publication Number Publication Date
WO2008147361A1 true WO2008147361A1 (fr) 2008-12-04

Family

ID=40075392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/012929 Ceased WO2008147361A1 (fr) 2007-06-01 2007-06-01 Échangeur de chaleur à écoulement parallèle avec connecteurs

Country Status (4)

Country Link
US (1) US20100170664A1 (fr)
EP (1) EP2165141A4 (fr)
CN (1) CN101772687B (fr)
WO (1) WO2008147361A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9644905B2 (en) 2012-09-27 2017-05-09 Hamilton Sundstrand Corporation Valve with flow modulation device for heat exchanger
CN120426792A (zh) * 2025-07-08 2025-08-05 上海晟煜科技有限公司 一种高效易清洗污水源热泵及其换热器

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
DE102011003609A1 (de) * 2011-02-03 2012-08-09 J. Eberspächer GmbH & Co. KG Rippenrohrwärmeübertrager
CN102322728A (zh) * 2011-09-13 2012-01-18 梅塞尔格里斯海姆(中国)投资有限公司 空分设备的主冷凝蒸发器
DE102012011520A1 (de) * 2012-06-08 2013-12-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmetauschersystem, Verfahren zu dessenHerstellung sowie Fluidverteilungselement
US10006369B2 (en) * 2014-06-30 2018-06-26 General Electric Company Method and system for radial tubular duct heat exchangers
US20160281532A1 (en) * 2015-03-24 2016-09-29 General Electric Company Heat exchanger for a gas turbine engine
CN113587252B (zh) * 2021-08-11 2022-09-13 哈尔滨工业大学（深圳） 一种微通道换热器和空调器

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US2055549A (en) * 1934-05-18 1936-09-29 Modine Mfg Co Heat exchange device
JPH0379056U (fr) 1989-11-24 1991-08-12
US5069277A (en) 1990-03-13 1991-12-03 Diesel Kiki Co., Ltd. Vehicle-loaded heat exchanger of parallel flow type
JP2000304472A (ja) * 1999-04-23 2000-11-02 Calsonic Kansei Corp 冷凍サイクル用熱交換器
US20020062953A1 (en) * 2000-10-05 2002-05-30 Walter Demuth Serpentine heat exchanger
JP2003166791A (ja) 2001-11-30 2003-06-13 Mitsubishi Heavy Ind Ltd 熱交換器
US20050006073A1 (en) * 2001-12-21 2005-01-13 Walter Demuth Device for exchanging heat

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CA1117520A (fr) * 1980-06-27 1982-02-02 Bozo Dragojevic Echangeur de chaleur
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WO2001061263A1 (fr) * 2000-02-15 2001-08-23 Zexel Valeo Climate Control Corporation Echangeur thermique
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US20060101849A1 (en) * 2004-11-12 2006-05-18 Carrier Corporation Parallel flow evaporator with variable channel insertion depth

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Publication number Priority date Publication date Assignee Title
US2055549A (en) * 1934-05-18 1936-09-29 Modine Mfg Co Heat exchange device
JPH0379056U (fr) 1989-11-24 1991-08-12
US5069277A (en) 1990-03-13 1991-12-03 Diesel Kiki Co., Ltd. Vehicle-loaded heat exchanger of parallel flow type
JP2000304472A (ja) * 1999-04-23 2000-11-02 Calsonic Kansei Corp 冷凍サイクル用熱交換器
US20020062953A1 (en) * 2000-10-05 2002-05-30 Walter Demuth Serpentine heat exchanger
JP2003166791A (ja) 2001-11-30 2003-06-13 Mitsubishi Heavy Ind Ltd 熱交換器
US20050006073A1 (en) * 2001-12-21 2005-01-13 Walter Demuth Device for exchanging heat

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See also references of EP2165141A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9644905B2 (en) 2012-09-27 2017-05-09 Hamilton Sundstrand Corporation Valve with flow modulation device for heat exchanger
CN120426792A (zh) * 2025-07-08 2025-08-05 上海晟煜科技有限公司 一种高效易清洗污水源热泵及其换热器

Also Published As

Publication number Publication date
CN101772687A (zh) 2010-07-07
CN101772687B (zh) 2011-11-16
EP2165141A1 (fr) 2010-03-24
EP2165141A4 (fr) 2013-11-13
US20100170664A1 (en) 2010-07-08
HK1145870A1 (en) 2011-05-06

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