JP5781756B2 - Egrクーラ - Google Patents
Egrクーラ Download PDFInfo
- Publication number
- JP5781756B2 JP5781756B2 JP2010281244A JP2010281244A JP5781756B2 JP 5781756 B2 JP5781756 B2 JP 5781756B2 JP 2010281244 A JP2010281244 A JP 2010281244A JP 2010281244 A JP2010281244 A JP 2010281244A JP 5781756 B2 JP5781756 B2 JP 5781756B2
- Authority
- JP
- Japan
- Prior art keywords
- egr
- egr cooler
- heat transfer
- gas
- heat exchange
- 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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Links
- 238000012546 transfer Methods 0.000 claims description 42
- 238000002485 combustion reaction Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 54
- 238000001816 cooling Methods 0.000 description 14
- 239000000498 cooling water Substances 0.000 description 10
- 238000005192 partition Methods 0.000 description 6
- 239000002826 coolant Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
排気の一部をEGRガスとしてEGR通路を介して燃焼室に還流させるEGR装置のEGRクーラであって、EGR通路内のEGRガスを複数並設される伝熱管の内側に導く一方で、伝熱管の外周側に熱媒体を導き、EGRガスと熱媒体との間で熱交換を行うものにおいて、
伝熱管の長手方向に略直交する方向におけるEGRクーラの断面形状が角部を有し、前記角部付近の伝熱管の内径及び外径が、他の部位の伝熱管の内径及び外径より小さい場合に、角部付近に他の部位に比べて伝熱管が高密度に配置されることを特徴とする。
2 吸気通路
5 燃焼室
6 排気通路
100 EGR装置(HPL−EGR)
101 EGR通路
110 EGRクーラ
111 伝熱管(熱交換パイプ)
111A 伝熱管(熱交換パイプ)(標準サイズ)
111B 伝熱管(熱交換パイプ)(径拡大)
111C 伝熱管(熱交換パイプ)(小径及び高密度化)
112 容器
112A 隔壁
112B 隔壁
120 EGRバルブ(HPL−EGR用)
200 EGR装置(LPL−EGR)
201 EGR通路
210 EGRクーラ
211 EGRバルブ(LPL−EGR用)
Claims (2)
- 排気の一部をEGRガスとしてEGR通路を介して燃焼室に還流させるEGR装置のEGRクーラであって、EGR通路内のEGRガスを複数並設される伝熱管の内側に導く一方で、伝熱管の外周側に熱媒体を導き、EGRガスと熱媒体との間で熱交換を行うものにおいて、
伝熱管の長手方向に略直交する方向におけるEGRクーラの断面形状が角部を有し、前記角部付近の伝熱管の内径及び外径が、他の部位の伝熱管の内径及び外径より小さい場合に、角部付近に他の部位に比べて伝熱管が高密度に配置されることを特徴とするEGRクーラ。 - 前記角部付近は、伝熱管の長手方向から見たときに、EGRクーラへのEGRガスの流入口より外側であることを特徴とする請求項1に記載のEGRクーラ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010281244A JP5781756B2 (ja) | 2010-12-17 | 2010-12-17 | Egrクーラ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010281244A JP5781756B2 (ja) | 2010-12-17 | 2010-12-17 | Egrクーラ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012127312A JP2012127312A (ja) | 2012-07-05 |
JP5781756B2 true JP5781756B2 (ja) | 2015-09-24 |
Family
ID=46644610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010281244A Active JP5781756B2 (ja) | 2010-12-17 | 2010-12-17 | Egrクーラ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5781756B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6944432B2 (ja) * | 2018-11-28 | 2021-10-06 | 株式会社ユタカ技研 | 熱交換器 |
CN111564288A (zh) * | 2020-05-25 | 2020-08-21 | 云南电网有限责任公司电力科学研究院 | 一种用于油浸变压器过负荷的冷却装置及其控制方法 |
CN112161498B (zh) * | 2020-10-16 | 2022-01-14 | 惠州忠信化工有限公司 | 一种化工用快接式列管换热器管板安装结构 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11193992A (ja) * | 1997-12-29 | 1999-07-21 | Usui Internatl Ind Co Ltd | 多管式egrガス冷却装置 |
JP3982650B2 (ja) * | 1997-12-29 | 2007-09-26 | 臼井国際産業株式会社 | 多管式egrガス冷却装置 |
DE102005037156A1 (de) * | 2005-08-06 | 2007-02-08 | Daimlerchrysler Ag | Wärmetauscher |
JP2007225137A (ja) * | 2006-02-21 | 2007-09-06 | Usui Kokusai Sangyo Kaisha Ltd | 排気ガス冷却装置用多管式熱交換器および伝熱管 |
-
2010
- 2010-12-17 JP JP2010281244A patent/JP5781756B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JP2012127312A (ja) | 2012-07-05 |
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