JP2021055857A - 熱交換器 - Google Patents
熱交換器 Download PDFInfo
- Publication number
- JP2021055857A JP2021055857A JP2019176523A JP2019176523A JP2021055857A JP 2021055857 A JP2021055857 A JP 2021055857A JP 2019176523 A JP2019176523 A JP 2019176523A JP 2019176523 A JP2019176523 A JP 2019176523A JP 2021055857 A JP2021055857 A JP 2021055857A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchange
- flow path
- exhaust gas
- heat
- exchange tube
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-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 in parallel spaced relation
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- 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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/02—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by influencing fluid boundary
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
前記コアケースの内部にて、前記熱交換チューブの外周を流れる第2の熱媒体と前記第1の熱媒体とが熱交換を行う熱交換器において、
複数の前記熱交換チューブは、少なくとも1つの特定熱交換チューブを含み、
この特定熱交換チューブの内部は、フィンを有しているフィン付き流路と、前記フィンを有していないことにより前記フィン付き流路よりも少ない熱量の熱交換を行うフィンなし流路と、に区画されている、ことを特徴とする熱交換器が提供される。
2つの前記フィン付き流路の間には、前記フィンなし流路が位置している。
図1(a)、図1(b)を参照する。EGR(Exhaust Gas Recirculation)クーラ10(熱交換器10)は、5つの熱交換チューブ11〜15からなる直方体状の本体16と、本体16を囲っている筒状のコアケース20と、コアケース20の一端に差し込まれてエンジンから排出された排気ガス(第1の熱媒体)が導入されるガス導入部材30と、コアケース20の他端に差し込まれて排気ガスが排出されるガス排出部材40と、からなる。
図8には、変形例による第3の熱交換チューブ13Aが示されている。第3の熱交換チューブ13Aでは、内部に設けられた4つのフィン90Aの構成が異なる。実施例と共通する構成については、実施例と同一の符号を付すると共に説明は省略する。
12‥第2の熱交換チューブ(一般熱交換チューブ)
13‥第3の熱交換チューブ(特定熱交換チューブ)
20‥コアケース
90‥フィン
91‥第1の当接部
92‥第2の当接部
93‥吸熱部
F1‥第1の流路(フィン付き流路)
F2‥第2の流路(フィンなし流路)
Claims (4)
- 内部を第1の熱媒体が流れる複数の扁平状の熱交換チューブと、これらの複数の熱交換チューブを収納しているコアケースと、を有し、
前記コアケースの内部にて、前記熱交換チューブの外周を流れる第2の熱媒体と前記第1の熱媒体とが熱交換を行う熱交換器において、
複数の前記熱交換チューブは、少なくとも1つの特定熱交換チューブを含み、
この特定熱交換チューブの内部は、フィンを有しているフィン付き流路と、前記フィンを有していないことにより前記フィン付き流路よりも少ない熱量の熱交換を行うフィンなし流路と、に区画されている、ことを特徴とする熱交換器。 - 複数の前記熱交換チューブのなかの、前記特定熱交換チューブ以外を一般熱交換チューブとすると、
前記特定熱交換チューブは、前記一般熱交換チューブよりも厚い、ことを特徴とする請求項1記載の熱交換器。 - 前記フィンなし流路の断面は正方形である、ことを特徴とする請求項1又は請求項2記載の熱交換器。
- 1つの前記特定熱交換チューブに対して、前記フィン付き流路は2つ設けられており、各々の前記フィン付き流路を構成する前記フィンは同一形状であり、
2つの前記フィン付き流路の間には、前記フィンなし流路が位置している、ことを特徴とする請求項1〜請求項3記載の熱交換器。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019176523A JP7136757B2 (ja) | 2019-09-27 | 2019-09-27 | 熱交換器 |
PCT/JP2020/033519 WO2021059921A1 (ja) | 2019-09-27 | 2020-09-04 | 熱交換器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019176523A JP7136757B2 (ja) | 2019-09-27 | 2019-09-27 | 熱交換器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021055857A true JP2021055857A (ja) | 2021-04-08 |
JP7136757B2 JP7136757B2 (ja) | 2022-09-13 |
Family
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JP2019176523A Active JP7136757B2 (ja) | 2019-09-27 | 2019-09-27 | 熱交換器 |
Country Status (2)
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JP (1) | JP7136757B2 (ja) |
WO (1) | WO2021059921A1 (ja) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54127647U (ja) * | 1978-02-27 | 1979-09-05 | ||
JP2004263616A (ja) * | 2003-02-28 | 2004-09-24 | Toyo Radiator Co Ltd | Egrクーラ用の偏平チューブ |
US20050274501A1 (en) * | 2004-06-09 | 2005-12-15 | Agee Keith D | Decreased hot side fin density heat exchanger |
JP2006038304A (ja) * | 2004-07-23 | 2006-02-09 | Usui Kokusai Sangyo Kaisha Ltd | 流体攪拌用フィンおよびその製造方法並びに該フィンを内装した伝熱管および熱交換器または熱交換型ガス冷却装置 |
JP2007078194A (ja) * | 2005-09-09 | 2007-03-29 | Usui Kokusai Sangyo Kaisha Ltd | 熱交換器用伝熱管 |
US20080264609A1 (en) * | 2007-04-26 | 2008-10-30 | Behr Gmbh & Co. Kg | Heat exchanger for exhaust gas cooling; method for operating a heat exchanger; system with a heat exchanger for exhaust gas cooling |
KR100897269B1 (ko) * | 2007-12-14 | 2009-05-14 | 현대자동차주식회사 | 자동차의 배기 가스 재순환장치 |
US20090166020A1 (en) * | 2004-07-28 | 2009-07-02 | Smith Paul R | Automotive heat exchanger assemblies having internal fins and methods of making the same |
JP2011214786A (ja) * | 2010-03-31 | 2011-10-27 | Yutaka Giken Co Ltd | 熱交換器 |
JP2012241597A (ja) * | 2011-05-18 | 2012-12-10 | Toyota Motor Corp | 排気冷却器 |
JP2015036542A (ja) * | 2013-08-12 | 2015-02-23 | 現代自動車株式会社 | Egrガス及びエンジンオイル冷却装置とその制御方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551919Y2 (ja) * | 1977-06-10 | 1980-01-18 |
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2019
- 2019-09-27 JP JP2019176523A patent/JP7136757B2/ja active Active
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2020
- 2020-09-04 WO PCT/JP2020/033519 patent/WO2021059921A1/ja active Application Filing
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54127647U (ja) * | 1978-02-27 | 1979-09-05 | ||
JP2004263616A (ja) * | 2003-02-28 | 2004-09-24 | Toyo Radiator Co Ltd | Egrクーラ用の偏平チューブ |
US20050274501A1 (en) * | 2004-06-09 | 2005-12-15 | Agee Keith D | Decreased hot side fin density heat exchanger |
JP2006038304A (ja) * | 2004-07-23 | 2006-02-09 | Usui Kokusai Sangyo Kaisha Ltd | 流体攪拌用フィンおよびその製造方法並びに該フィンを内装した伝熱管および熱交換器または熱交換型ガス冷却装置 |
US20090166020A1 (en) * | 2004-07-28 | 2009-07-02 | Smith Paul R | Automotive heat exchanger assemblies having internal fins and methods of making the same |
JP2007078194A (ja) * | 2005-09-09 | 2007-03-29 | Usui Kokusai Sangyo Kaisha Ltd | 熱交換器用伝熱管 |
US20080264609A1 (en) * | 2007-04-26 | 2008-10-30 | Behr Gmbh & Co. Kg | Heat exchanger for exhaust gas cooling; method for operating a heat exchanger; system with a heat exchanger for exhaust gas cooling |
KR100897269B1 (ko) * | 2007-12-14 | 2009-05-14 | 현대자동차주식회사 | 자동차의 배기 가스 재순환장치 |
JP2011214786A (ja) * | 2010-03-31 | 2011-10-27 | Yutaka Giken Co Ltd | 熱交換器 |
JP2012241597A (ja) * | 2011-05-18 | 2012-12-10 | Toyota Motor Corp | 排気冷却器 |
JP2015036542A (ja) * | 2013-08-12 | 2015-02-23 | 現代自動車株式会社 | Egrガス及びエンジンオイル冷却装置とその制御方法 |
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WO2021059921A1 (ja) | 2021-04-01 |
JP7136757B2 (ja) | 2022-09-13 |
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