EP1256771B1 - Véhicule comprenant deux échangeurs de chaleur - Google Patents

Véhicule comprenant deux échangeurs de chaleur Download PDF

Info

Publication number
EP1256771B1
EP1256771B1 EP00912901A EP00912901A EP1256771B1 EP 1256771 B1 EP1256771 B1 EP 1256771B1 EP 00912901 A EP00912901 A EP 00912901A EP 00912901 A EP00912901 A EP 00912901A EP 1256771 B1 EP1256771 B1 EP 1256771B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tubes
heat
heat exchangers
disposed
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.)
Expired - Lifetime
Application number
EP00912901A
Other languages
German (de)
English (en)
Other versions
EP1256771A4 (fr
EP1256771A1 (fr
Inventor
Muneo Zexel Valeo Climate Control Corp. SAKURADA
Soichi Zexel Valeo Climate Control Corp. KATO
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.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Valeo Climate Control 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 Zexel Valeo Climate Control Corp filed Critical Zexel Valeo Climate Control Corp
Publication of EP1256771A1 publication Critical patent/EP1256771A1/fr
Publication of EP1256771A4 publication Critical patent/EP1256771A4/fr
Application granted granted Critical
Publication of EP1256771B1 publication Critical patent/EP1256771B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28F1/128—Fins with openings, e.g. louvered fins
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0435—Combination of units extending one behind the other

Definitions

  • the present invention relates to a vehicle incorporating a heat exchanger assembly which is comprised of two or more heat exchangers having different usage.
  • Conventional heat exchangers used for vehicles include for example a heat exchanger which is comprised of two or more heat exchangers having different operations.
  • Japanese Patent Application Laid-Open Publication No. Hei 10-306994 discloses an invention of a heat exchanger which has a radiator core section for an engine and a condenser core section for a vehicle air conditioner configured integrally.
  • Hei 10-253276 has paid attention to a ratio between a width of fins and a number of louvers, which are disposed between tubes of a condenser core section and a radiator core section, and configures so that a heat exchanger having a small required radiation amount between two integrally configured heat exchangers has a small ratio between the fin width and the number of louvers and a heat exchanger having a large required radiation amount has a ratio between the fin width and the number of louvers larger than that of the heat exchanger having the above small required radiation amount.
  • Japanese Patent Application Laid-Open Publication No. Hei 10-170184 has paid attention to the shape of louvers formed on fins disposed between tubes of two heat exchangers, and improved the heat exchange efficiency of the two heat exchangers by configuring so that the louvers formed on the fins which are fitted to one of the heat exchangers have a shape different from louvers formed on the fins which are fitted to the other heat exchanger.
  • a speed of air which has passed through the tubes 13 of the first heat exchanger is lowered by the presence of the tubes 13 of the first heat exchanger disposed on the windward of the ventilating direction and then the air is spread, so that the air speed is lowered along the surfaces of the tubes 14 and the portions of fins 6 in proximity to the tubes of the second heat exchanger, and the heat-exchanging performance of the second heat exchanger is significantly lowered.
  • the first and second heat exchangers To mount the heat exchangers within an engine room having a limited mounting space, the first and second heat exchangers must be mutually placed as close as possible, and they are also demanded to be light-weighted.
  • WO-A-99/28692 describes a heat exchanger assembly according to the preamble of claim 1.
  • JP 11 1487 95 A discloses a related heat exchanger assembly.
  • the present invention has been completed in view of the aforesaid disadvantages, and it is an object of the invention to provide a vehicle incorporating a heat exchanger assembly which is comprised of two or more heat exchangers disposed in parallel at right angles to a ventilating direction and which can keep the heat-exchanging performance of a heat exchanger disposed on the leeward side.
  • the speed of the outside air having passed through the tubes of the first heat exchanger is lowered by the presence of the tubes of the first heat exchanger which is on the windward in the ventilating direction.
  • the outside air having passed through the first heat exchanger is spread and its speed is lowered on the surfaces of the tubes and the portions of the fins in proximity to the tubes of the second heat exchanger, and the heat-exchanging performance of the second heat exchanger is lowered considerably.
  • the heights of the tubes configuring the first heat exchanger are lower than the heights of the tubes configuring the second heat exchanger, so that ventilation of the outside air is not disturbed, and the outside air is allowed to reach the surfaces of the tubes configuring the second heat exchanger.
  • the heat-exchanging performance of the second heat exchanger can be kept.
  • the invention described in claim 3 is directed to the invention according to claim 1 or 2, wherein the respective tubes have a height of less than 1.6 mm.
  • the tubes configuring the heat exchanger are desired to have a height of 1.6 mm or less in view of the heat-exchanging efficiency of the heat exchanger and its weight reduction.
  • the heat-exchanging efficiency is further improved by determining the tubes to have a height of 1.3 mm or less, and it becomes possible to make the heat exchanger more compact and light-weighted.
  • the invention described in claim 4 is directed to the invention according to any of claims 1 to 3, wherein the two or more heat exchangers disposed in parallel have a space of 15 mm or less between them.
  • first and second heat exchangers when the first and second heat exchangers are mounted in an engine room, it is desired to mount the first and second heat exchangers, which are disposed in parallel, as close as possible to each other in order to reduce a mounting space. Meanwhile, when the first and second heat exchangers are disposed adjacent to each other, the outside air flowing to the second heat exchanger is disturbed by the first heat exchanger disposed on the windward in the ventilating direction, and the heat-exchanging performance of the heat exchanger disposed on the leeward side in the ventilating direction cannot be kept.
  • the heights of the tubes configuring the heat exchanger disposed on the windward are smaller than the heights of the tubes configuring the heat exchanger disposed on the leeward side. Therefore, the heat-exchanging performance of the second heat exchanger can be kept even if the first and second heat exchangers are disposed closely to have a space of 15 mm between them.
  • the heat exchangers are integrally configured by a common member, for example, a bracket, the heat exchangers are light-weighted, and their mounting in the engine room or the like is facilitated without increasing the mounting space.
  • Fig. 1 is a perspective view schematically showing the structure of this embodiment.
  • the heat exchanger of this embodiment has first and second heat exchangers 1, 2 which are disposed in parallel with respect to a ventilating direction.
  • the individual heat exchangers 1, 2 have a plurality of tubes 3, 4 and fins 5, 6 fitted between the tubes 3, 4 to increase a radiation area.
  • the tubes 3, 4 and the fins 5, 6 are stacked into a plurality of layers, and each end of the tubes 3, 4 is connected to header tanks 7, 8, 9, 10.
  • a heat-exchanging medium is distributed to flow from the respective header tanks 7, 8 to the individual tubes 3, 4 to perform heat exchange so that the high-temperature medium becomes a low-temperature medium by radiation from the tubes 3, 4 and the fins 5, 6.
  • An arrow in Fig. 1 indicates a ventilating direction of outside air.
  • the first and second heat exchangers 1, 2 of this embodiment are supported and integrally configured by common members.
  • brackets 15 are used to fix the first and second heat exchangers 1, 2 with bolts.
  • two brackets 15 each are disposed on the top and bottom of end plates of both heat exchangers, and a bolt is inserted for fixing through each bracket in the longitudinal direction of a vehicle.
  • a condenser for a vehicle air conditioner which is the first heat exchanger 1 is disposed on the windward of the ventilating direction, and an engine radiator which is the second heat exchanger 2 is disposed on the leeward side of the ventilating direction.
  • the heat exchangers 1, 2 of this embodiment have a space K of 15 mm between the condenser as the first heat exchanger 1 and the radiator as the second heat exchanger 2 in order to reduce a mounting space. Especially, it is significant to reduce the mounting space in order to mount the heat exchangers on a vehicle.
  • height hc of the tubes configuring the first heat exchanger 1 which is disposed in parallel to the second heat exchanger and at right angles to the ventilating direction is determined to be smaller than height hr of the tubes configuring the second heat exchanger 2.
  • the heights of the tubes configuring the first and second heat exchangers which are disposed in parallel at right angles to the ventilating direction have a relation of hc ⁇ hr.
  • Fig. 2 is a partially sectional view of the first and second heat exchangers 1, 2, showing the tubes 3, 4 and the fins 5, 6.
  • reference numerals 11, 12 indicate louvers formed on the fins 5, 6.
  • the arrows in the drawing indicate the ventilating direction of outside air.
  • Fig. 3 is a diagram showing a relation between a ratio of the heights of the tubes configuring the first and second heat exchangers and a heat radiation amount of the second heat exchanger.
  • the ratio of the heat radiation amount of the second heat exchanger is improved when hr/hc > 1 or more, namely when the heights of the tubes of the condenser disposed on the windward of the ventilating direction are smaller than the heights of the tubes of the radiator disposed on the leeward side of the ventilating direction.
  • Point A in Fig. 3 indicates that a relation between the heights of the tubes 3, 4 of the first and second heat exchangers is hr/hc > 1 shown in this embodiment.
  • a Point C in Fig. 3 indicates that a relation between the heights hr and hc of the tubes of the first and second heat exchangers is hr/hc ⁇ 1.
  • the tubes 3, 4 configuring the heat exchangers 1, 2 are desired to have a height of less than 1.6 mm considering the heat-exchanging performance and weight reduction of the heat exchangers.
  • the first heat exchanger is a condenser as in this embodiment
  • the heat-exchanging efficiency is improved furthermore by determining the tubes to have a height of 1.3 mm or less.
  • the heat exchanger can be made more compact and light-weighted.
  • the tubes 3, 4 of the heat exchangers 1, 2 are formed in this embodiment basically to satisfy the relation of hc ⁇ hr ⁇ 1.6 mm.
  • the heat-exchanging performance of the second heat exchanger can be improved better than before without increasing the mounting space.
  • the condenser used for a heat-exchanging cycle of a car air conditioner and the radiator for cooling an engine are disposed in an engine room in parallel at right angles to the ventilating direction.
  • the tubes of the condenser as the first heat exchanger are configured to have a height smaller than the heights of the tubes of the radiator as the second heat exchanger as in this embodiment, the heat-exchanging performance of the second heat exchanger is not disturbed by the first heat exchanger, and the required high heat-exchanging performance can be obtained.
  • the heat-exchanging performance of the second heat exchanger disposed on the leeward side can be improved, so that the heat exchanger can be made compact and light-weighted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (5)

  1. Véhicule comprenant un compartiment moteur dans lequel un ensemble d'échangeurs de chaleur composé de deux échangeurs de chaleur (1, 2) ou plus est monté, où les échangeurs de chaleur (1, 2) sont disposés sur le côté au vent et sous le vent de la direction de ventilation en parallèle à angles droits à la direction de ventilation, où les échangeurs de chaleur (1, 2) sont configurés en empilant une pluralité de tubes (3, 4); et où
    l'échangeur de chaleur (1) disposé sur le côté au vent de la direction de ventilation est un condensateur, et l'échangeur de chaleur (2) disposé sur le côté sous le vent de la direction de ventilation est un radiateur,
    caractérisé en ce que
    les hauteurs (hc) des tubes (3, 4) de l'échangeur de chaleur (1) disposé sur le côté au vent de la direction de ventilation sont inférieures aux hauteurs (hr) des tubes (3, 4) de l'autre échangeur de chaleur (2) disposé sur le côté sous le vent.
  2. Véhicule selon la revendication 1, dans lequel les tubes respectifs (3, 4) des deux échangeurs de chaleurs (1, 2) ou plus disposés en parallèle ont essentiellement le même espace entre les tubes empilés (3, 4).
  3. Véhicule selon la revendication 1 ou 2, dans lequel les tubes respectifs (3, 4) ont moins de 1, 6 mm de hauteur.
  4. Véhicule selon l'une quelconque des revendications 1 à 3, dans lequel les deux échangeurs de chaleur (1, 2) ou plus disposés en parallèle ont un espace (K) de 15 mm ou moins entre eux.
  5. Véhicule selon l'une quelconque des revendications 1 à 4, dans lequel les deux échangeurs de chaleur (1, 2) ou plus sont configurés de manière solidaire en utilisant un élément commun.
EP00912901A 1999-07-19 2000-03-29 Véhicule comprenant deux échangeurs de chaleur Expired - Lifetime EP1256771B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20435499 1999-07-19
JP20435499A JP3625259B2 (ja) 1999-07-19 1999-07-19 熱交換器
PCT/JP2000/001935 WO2001006194A1 (fr) 1999-07-19 2000-03-29 Echangeur de chaleur

Publications (3)

Publication Number Publication Date
EP1256771A1 EP1256771A1 (fr) 2002-11-13
EP1256771A4 EP1256771A4 (fr) 2005-11-09
EP1256771B1 true EP1256771B1 (fr) 2008-10-22

Family

ID=16489128

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912901A Expired - Lifetime EP1256771B1 (fr) 1999-07-19 2000-03-29 Véhicule comprenant deux échangeurs de chaleur

Country Status (4)

Country Link
EP (1) EP1256771B1 (fr)
JP (1) JP3625259B2 (fr)
DE (1) DE60040620D1 (fr)
WO (1) WO2001006194A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4420689B2 (ja) * 2004-01-29 2010-02-24 株式会社ヴァレオサーマルシステムズ 自動車のフロント構造
JP2008039322A (ja) * 2006-08-08 2008-02-21 Univ Of Tokyo 熱交換器およびこれを備える熱交換装置
US8196646B2 (en) 2008-12-15 2012-06-12 Delphi Technologies, Inc. Heat exchanger assembly
JP7047361B2 (ja) * 2017-12-08 2022-04-05 株式会社デンソー 熱交換器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58108394A (ja) * 1981-12-21 1983-06-28 Hitachi Ltd 熱交換器
US5529116A (en) * 1989-08-23 1996-06-25 Showa Aluminum Corporation Duplex heat exchanger
DE4327213C2 (de) * 1993-08-13 1997-12-11 Ruecker Gmbh Rekuperativer Wärmetauscher, insbesondere Kühler für Kraftfahrzeuge
US5730213A (en) * 1995-11-13 1998-03-24 Alliedsignal, Inc. Cooling tube for heat exchanger
EP0773419B1 (fr) * 1995-11-13 2003-02-05 Denso Corporation Echangeur de chaleur
JP3855346B2 (ja) * 1997-03-17 2006-12-06 株式会社デンソー 熱交換器
JPH1194485A (ja) * 1997-09-19 1999-04-09 Denso Corp 複式熱交換器
JPH11148795A (ja) * 1997-11-14 1999-06-02 Toyo Radiator Co Ltd 複合型熱交換器
JPH11218396A (ja) * 1997-11-28 1999-08-10 Zexel:Kk 並設一体型熱交換器及びその製造方法

Also Published As

Publication number Publication date
EP1256771A4 (fr) 2005-11-09
DE60040620D1 (de) 2008-12-04
WO2001006194A1 (fr) 2001-01-25
JP3625259B2 (ja) 2005-03-02
EP1256771A1 (fr) 2002-11-13
JP2001033193A (ja) 2001-02-09

Similar Documents

Publication Publication Date Title
EP0367078B1 (fr) Echangeur de chaleur
JP4379967B2 (ja) 複式熱交換器
US5311935A (en) Corrugated fin type heat exchanger
US6213196B1 (en) Double heat exchanger for vehicle air conditioner
JP4281175B2 (ja) 複式熱交換器
US6889757B2 (en) Core structure of integral heat-exchanger
WO2007099868A1 (fr) Echangeur de chaleur et echangeur de chaleur de type integre
JP3829494B2 (ja) 熱交換器
CN103238038A (zh) 微通道热交换器鳍片
US6360817B1 (en) Single heat exchanger
JP3947931B2 (ja) 積層型熱交換器
EP1256771B1 (fr) Véhicule comprenant deux échangeurs de chaleur
WO2020170651A1 (fr) Échangeur de chaleur composé
JPH11153395A (ja) 自動車用一体型熱交換器
JP3683001B2 (ja) 複式積層型熱交換器
JPH11192833A (ja) 熱交換器組み合わせ構造及び一体型熱交換器
WO2020184315A1 (fr) Échangeur de chaleur
JPH0976734A (ja) 車載用凝縮器
JPH0452498A (ja) 複式熱交換器
JPH0587483A (ja) アルミニウム製熱交換器
JP3797720B2 (ja) 熱交換器
JPH03204595A (ja) 凝縮器
JPH0722607Y2 (ja) 熱交換器
JP3677898B2 (ja) 複式熱交換器
JP3861787B2 (ja) 複合熱交換器及びこれを備える自動車

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020213

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

A4 Supplementary search report drawn up and despatched

Effective date: 20050927

17Q First examination report despatched

Effective date: 20060208

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: VEHICLE INCORPORATING TWO HEAT EXCHANGERS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ZEXEL VALEO CLIMATE CONTROL CORPORATION

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60040620

Country of ref document: DE

Date of ref document: 20081204

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090723

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20110323

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120329

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170213

Year of fee payment: 18

Ref country code: DE

Payment date: 20170321

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60040620

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331