Article(id=1325516930077041103, tenantId=1146029695717560320, journalId=1205116786560364546, issueId=1325516904667951420, articleNumber=null, orderNo=null, doi=10.16236/j.cnki.nrjxb.202504035, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1725811200000, receivedDateStr=2024-09-09, revisedDate=1736870400000, revisedDateStr=2025-01-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1793957463043, onlineDateStr=2026-11-06, pubDate=1753372800000, pubDateStr=2025-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793957463043, onlineIssueDateStr=2026-11-06, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793957463043, creator=13701087609, updateTime=1793957463043, updator=13701087609, issue=Issue{id=1325516904667951420, tenantId=1146029695717560320, journalId=1205116786560364546, year='2025', volume='43', issue='4', pageStart='289', pageEnd='383', issueExtLink='null', onlineDate='null', pubDate='1753372800000', pubDateStr='2025-07-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793957456986, creator='13701087609', updateTime=1793959854445, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1325526961023640114, tenantId=1146029695717560320, journalId=1205116786560364546, issueId=1325516904667951420, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1325526961023640115, tenantId=1146029695717560320, journalId=1205116786560364546, issueId=1325516904667951420, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=306, endPage=313, ext={EN=ArticleExt(id=1325516931511493072, articleId=1325516930077041103, tenantId=1146029695717560320, journalId=1205116786560364546, language=EN, title=An experiment of internal EGR exhaust thermal management based on secondary opening of exhaust valves, columnId=null, journalTitle=Transactions of CSICE, columnName=null, runingTitle=null, highlight=null, articleAbstract=
An experiment of internal exhaust gas recirculation(EGR) thermal management was conducted on a six-cylinders turbocharged diesel engine equipped with the fully hydraulic variable valve system(FHVVS) at medium load conditions. The cylinder pressure, intake and exhaust dynamic pressure, exhaust temperature and fuel consumption rate were measured to investigate the influence of internal EGR based on secondary opening of exhaust valves on the exhaust thermal management performance experiment. The concept of fuel consumption to temperature rise ratio λ was proposed to represent the additional fuel consumption rate when the exhaust temperature increases by every 100℃ in the certain thermal management mode. The results indicated that the recirculation of the high-temperature oxygen-containing exhaust gas from exhaust pipe during the intake stroke significantly reduces the intake flow rate and increases the exhaust temperature. Compared to thermal management of an intake throttle with the same intake flow rate, the internal EGR thermal management significantly reduces the pressure difference between the exhaust and intake, leading to a pump loss reduction of more than 62.2% and a fuel consumption rate reduction of 4.26%—6.62%. By using the compound thermal management of “internal EGR+throttle”, the exhaust temperature increases significantly to 522℃ under the rotating speed of 1200r/min and medium load condition, and the λ is only 3.0g/(kW·h)·(100℃), while as high as 9.6g/(kW·h)·(100℃) for the throttle mode under the same intake flow.
, authors=Wenzheng Dou
1, 2, Jinqun Zhang
1, 2, Qidong Zhao
3, Xiaoyan Wang
3, Yingjie Chang
1, 2, Zongfa Xie
1, 2, authorsList=Wenzheng Dou, Jinqun Zhang, Qidong Zhao, Xiaoyan Wang, Yingjie Chang, Zongfa Xie, authorCompany=null, correspAuthors=Zongfa Xie, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1325516937664537070, articleId=1325516930077041103, tenantId=1146029695717560320, journalId=1205116786560364546, language=CN, title=基于排气门二次开启的内部EGR排气热管理试验, columnId=null, journalTitle=内燃机学报, columnName=, runingTitle=null, highlight=null, articleAbstract=
以搭载全可变液压气门机构(FHVVS)的6缸、高增压柴油机为研究对象,在试验台架上实测柴油机中等负荷工况时的缸内压力、进/排气压力、排气温度和燃油消耗率等参数,开展了基于排气门二次开启的柴油机内部废气再循环(EGR)排气热管理试验.提出了油耗温升比λ,以表征某种排气热管理下排气温度每提高100℃时柴油机额外增加的燃油消耗率.结果表明:在进气冲程中,来自排气道的高温含氧废气回流使进气流量明显减少,排气温度显著上升;与相同进气流量的进气节流阀热管理相比,内部EGR热管理的进/排气压差明显减小,泵气损失降低62.2%以上,优化后的燃油消耗率降低4.26%~6.62%;采用“内部EGR+节流阀”的复合热管理模式,使试验样机在转速为1200r/min、中等负荷工况下的排气温度大幅升至522℃,且油耗温升比λ仅为3.0g/ (kW·h)·(100℃),而相同进气流量下节流阀模式的油耗温升比λ高达9.6g/(kW·h)·(100℃).
, authors=窦文政
1, 2, 张晋群
1, 2, 赵淇东
3, 王晓艳
3, 常英杰
1, 2, 谢宗法
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1.School of Mechanical Engineering,Shandong University,Jinan 250061,China
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1.山东大学机械工程学院,济南 250061
2.山东大学高效洁净机械制造教育部重点实验室,济南 250061, bio={"content":"
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1.School of Mechanical Engineering,Shandong University,Jinan 250061,China
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1.山东大学机械工程学院,济南 250061
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1.School of Mechanical Engineering,Shandong University,Jinan 250061,China
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1.山东大学机械工程学院,济南 250061
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1, 2, address=
1.School of Mechanical Engineering,Shandong University,Jinan 250061,China
2.Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education,Shandong University,Jinan 250061,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1325516944845185561, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, authorId=1325516943041634837, language=CN, stringName=谢宗法, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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排气门二次开启时的实测气门升程, figureFileSmall=f9xUAiyMtVGpVQ1d5wSCkg==, figureFileBig=JyV5c6hBmBFGIplR78WSmg==, tableContent=null), ArticleFig(id=1325516945969259042, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.2, caption=
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Measured exhaust valve lift during the conversion process of opening time, figureFileSmall=EsEiO0LxT7qyxD0i2tToKA==, figureFileBig=gd+P/sebH6Gg5ioRUPOiug==, tableContent=null), ArticleFig(id=1325516946250277413, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图3, caption=
开启次数转换过程的实测排气门升程, figureFileSmall=EsEiO0LxT7qyxD0i2tToKA==, figureFileBig=gd+P/sebH6Gg5ioRUPOiug==, tableContent=null), ArticleFig(id=1325516946325774886, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.4, caption=
Maximum burst pressure inside the cylinder during the working mode switching process, figureFileSmall=or/6sFjigLLrU2PjefC/fQ==, figureFileBig=vibX4BvmzOKTja55hfmj0A==, tableContent=null), ArticleFig(id=1325516946388689447, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图4, caption=
工作模式切换过程的缸内最大爆发压力, figureFileSmall=or/6sFjigLLrU2PjefC/fQ==, figureFileBig=vibX4BvmzOKTja55hfmj0A==, tableContent=null), ArticleFig(id=1325516946480964136, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.5, caption=
Effect of iEGR on intake and exhaust performance, figureFileSmall=cZqkPh2zLLH+Cx4Aj7xVhw==, figureFileBig=MxK4FTv732WrSBFiSsBjkg==, tableContent=null), ArticleFig(id=1325516946564850217, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图5, caption=
内部EGR对进/排气性能的影响, figureFileSmall=cZqkPh2zLLH+Cx4Aj7xVhw==, figureFileBig=MxK4FTv732WrSBFiSsBjkg==, tableContent=null), ArticleFig(id=1325516946669707818, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.6, caption=
Intake and exhaust pressure difference at different rotating speeds, figureFileSmall=W4DS9VLSAMXWLOfXvs0Hsg==, figureFileBig=jkb9HjSY3eXVT5LORdlFkQ==, tableContent=null), ArticleFig(id=1325516946787148331, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图6, caption=
不同转速下的进/排气压差, figureFileSmall=W4DS9VLSAMXWLOfXvs0Hsg==, figureFileBig=jkb9HjSY3eXVT5LORdlFkQ==, tableContent=null), ArticleFig(id=1325516946866840108, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.7, caption=
Low-voltage indicator diagrams in different thermal management mode, figureFileSmall=v3qAaphnKsSbaBy1E5rxWw==, figureFileBig=a0hYmcT58AoN4bWrRcBTPw==, tableContent=null), ArticleFig(id=1325516946988474925, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图7, caption=
不同热管理模式下的低压示功图, figureFileSmall=v3qAaphnKsSbaBy1E5rxWw==, figureFileBig=a0hYmcT58AoN4bWrRcBTPw==, tableContent=null), ArticleFig(id=1325516947118498350, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.8, caption=
In-cylinder pressure and instantaneous heat release rate, figureFileSmall=6KeXZI9qQGgOUGbgU6xrYg==, figureFileBig=CESWujqWPE54Ty38vacnNw==, tableContent=null), ArticleFig(id=1325516947219161647, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图8, caption=
缸内压力和放热率, figureFileSmall=6KeXZI9qQGgOUGbgU6xrYg==, figureFileBig=CESWujqWPE54Ty38vacnNw==, tableContent=null), ArticleFig(id=1325516947391128112, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.9, caption=
Effect of fuel injection advance angle on combustion performance, figureFileSmall=Snk6C2pyAbZRmII+rYuScQ==, figureFileBig=FRQ4uXPqCKQygtFjb5NARw==, tableContent=null), ArticleFig(id=1325516947512762929, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图9, caption=
喷油提前角对燃烧性能的影响, figureFileSmall=Snk6C2pyAbZRmII+rYuScQ==, figureFileBig=FRQ4uXPqCKQygtFjb5NARw==, tableContent=null), ArticleFig(id=1325516947600843314, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.10, caption=
Effect of various modes on fuel consumption rates, figureFileSmall=Y3+ky28RXHHXzDM6uWvMBg==, figureFileBig=7DzQp3K77xm154qOq3/Tbg==, tableContent=null), ArticleFig(id=1325516949299536435, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图10, caption=
各模式对燃油消耗率的影响, figureFileSmall=Y3+ky28RXHHXzDM6uWvMBg==, figureFileBig=7DzQp3K77xm154qOq3/Tbg==, tableContent=null), ArticleFig(id=1325516949391811124, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.11, caption=
Fuel consumption rates under different exhaust thermal management modes, figureFileSmall=2DB+f9//8zxmhcvwt935OQ==, figureFileBig=U7NehbMZfWPks+mzHVP4dg==, tableContent=null), ArticleFig(id=1325516949547000373, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图11, caption=
不同排气热管理模式下的燃油消耗率, figureFileSmall=2DB+f9//8zxmhcvwt935OQ==, figureFileBig=U7NehbMZfWPks+mzHVP4dg==, tableContent=null), ArticleFig(id=1325516949781881398, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.12, caption=
Exhaust temperature and fuel consumption to temperature rise ratio under different thermal management modes, figureFileSmall=/FKNaI+2lupYozY8zAN5YA==, figureFileBig=tAhfWQe7p95bAk62d92iIg==, tableContent=null), ArticleFig(id=1325516949907710519, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图12, caption=
不同热管理模式的排气温度和油耗温升比λ, figureFileSmall=/FKNaI+2lupYozY8zAN5YA==, figureFileBig=tAhfWQe7p95bAk62d92iIg==, tableContent=null), ArticleFig(id=1325516950012568120, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Fig.13, caption=
Thermal management performance in different operating modes, figureFileSmall=AzTiZiQBc8m1bn54Uc9iyQ==, figureFileBig=ZX+AhqcMweVCWW1RlEs5cA==, tableContent=null), ArticleFig(id=1325516950134202937, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=图13, caption=
不同模式下的热管理效能, figureFileSmall=AzTiZiQBc8m1bn54Uc9iyQ==, figureFileBig=ZX+AhqcMweVCWW1RlEs5cA==, tableContent=null), ArticleFig(id=1325516950264226362, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Tab.1, caption=
Main technical parameters of diesel engine
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 型号 | 四冲程,增压中冷 |
| 排量/L | 9.51 |
| 缸径/mm | 116 |
| 活塞行程/mm | 150 |
| 标定转速/(r·min-1) | 1900 |
| 标定功率/kW | 275 |
| 最大转矩/(N·m) | 1800(1000~1400r/min) |
| 压缩比 | 20.5 |
), ArticleFig(id=1325516950394249787, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=表1, caption=
柴油机主要技术参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 型号 | 四冲程,增压中冷 |
| 排量/L | 9.51 |
| 缸径/mm | 116 |
| 活塞行程/mm | 150 |
| 标定转速/(r·min-1) | 1900 |
| 标定功率/kW | 275 |
| 最大转矩/(N·m) | 1800(1000~1400r/min) |
| 压缩比 | 20.5 |
), ArticleFig(id=1325516950528467516, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Tab.2, caption=
Main instruments and equipment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 设备 | 型号 | 生产厂家 | 测试精度 |
|---|
| 缸压传感器 | 6054B | Kistler | ≤±0.3% |
| 进气压力传感器 | 4007D | Kistler | ≤±1% |
| 排气压力传感器 | 4049B | Kistler | ≤±0.5% |
| 燃烧分析仪 | KiBox | Kistler | — |
| 油耗仪 | DF2420 | 小野测器 | ±0.2% |
| 燃油温控箱 | FC2400T | 湘仪动测 | ±0.2℃ |
| 空气流量计 | 20N150 | 同圆测试 | ±1% |
| 水力测功机 | SG630 | 湘仪动测 | ±0.2% |
| 测控系统 | FC2000 | 湘仪动测 | — |
), ArticleFig(id=1325516950683656765, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=表2, caption=
主要仪器设备
, figureFileSmall=null, figureFileBig=null, tableContent=
| 设备 | 型号 | 生产厂家 | 测试精度 |
|---|
| 缸压传感器 | 6054B | Kistler | ≤±0.3% |
| 进气压力传感器 | 4007D | Kistler | ≤±1% |
| 排气压力传感器 | 4049B | Kistler | ≤±0.5% |
| 燃烧分析仪 | KiBox | Kistler | — |
| 油耗仪 | DF2420 | 小野测器 | ±0.2% |
| 燃油温控箱 | FC2400T | 湘仪动测 | ±0.2℃ |
| 空气流量计 | 20N150 | 同圆测试 | ±1% |
| 水力测功机 | SG630 | 湘仪动测 | ±0.2% |
| 测控系统 | FC2000 | 湘仪动测 | — |
), ArticleFig(id=1325516950784320062, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Tab.3, caption=
Pumping mean effective pressure at different rotating speeds
, figureFileSmall=null, figureFileBig=null, tableContent=
| 转速/(r·min-1) | 内部EGR模式/kPa | 节流阀模式/kPa | 降幅/% |
|---|
| 800 | -11.22 | -29.67 | 62.2 |
| 1000 | -4.12 | -36.42 | 88.7 |
| 1200 | -14.41 | -63.39 | 77.3 |
| 1400 | -35.21 | -100.00 | 64.7 |
), ArticleFig(id=1325516951023395391, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=表3, caption=
不同转速下的泵气损失平均有效压力
, figureFileSmall=null, figureFileBig=null, tableContent=
| 转速/(r·min-1) | 内部EGR模式/kPa | 节流阀模式/kPa | 降幅/% |
|---|
| 800 | -11.22 | -29.67 | 62.2 |
| 1000 | -4.12 | -36.42 | 88.7 |
| 1200 | -14.41 | -63.39 | 77.3 |
| 1400 | -35.21 | -100.00 | 64.7 |
), ArticleFig(id=1325516951128252992, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=EN, label=Tab.4, caption=
Combustion performance parameters under different thermal management strategies
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模式 | CA50/(°)CA | CA90/(°)CA | 燃烧持续期/(°)CA | 最大放热率/(J·(°)-1CA) |
|---|
| 无节流 | 11.63 | 45.11 | 41.63 | 252.30 |
| 节流阀 | 13.34 | 52.30 | 48.17 | 228.07 |
| 内部EGR | 14.22 | 50.48 | 46.97 | 221.99 |
), ArticleFig(id=1325516951358939713, tenantId=1146029695717560320, journalId=1205116786560364546, articleId=1325516930077041103, language=CN, label=表4, caption=
不同热管理策略下燃烧性能参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模式 | CA50/(°)CA | CA90/(°)CA | 燃烧持续期/(°)CA | 最大放热率/(J·(°)-1CA) |
|---|
| 无节流 | 11.63 | 45.11 | 41.63 | 252.30 |
| 节流阀 | 13.34 | 52.30 | 48.17 | 228.07 |
| 内部EGR | 14.22 | 50.48 | 46.97 | 221.99 |
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