WO2009067894A1 - Dispositif mécanique à variation continue à tourbillon pour moteur diesel - Google Patents

Dispositif mécanique à variation continue à tourbillon pour moteur diesel Download PDF

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Publication number
WO2009067894A1
WO2009067894A1 PCT/CN2008/072966 CN2008072966W WO2009067894A1 WO 2009067894 A1 WO2009067894 A1 WO 2009067894A1 CN 2008072966 W CN2008072966 W CN 2008072966W WO 2009067894 A1 WO2009067894 A1 WO 2009067894A1
Authority
WO
WIPO (PCT)
Prior art keywords
passage
vortex
continuously variable
intake
mechanical device
Prior art date
Application number
PCT/CN2008/072966
Other languages
English (en)
Chinese (zh)
Inventor
Zhengbin Xie
Original Assignee
Chery Automobile Co., Ltd.
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 Chery Automobile Co., Ltd. filed Critical Chery Automobile Co., Ltd.
Publication of WO2009067894A1 publication Critical patent/WO2009067894A1/fr

Links

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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • 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
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • 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

Definitions

  • the invention relates to a vortex continuous variable mechanical device of the diesel engine.
  • the application claims the priority of the Chinese patent application filed on November 7, 2007 by the Chinese Patent Office, application number 200710135371.0, and the invention name is "high-speed diesel electronically controlled eddy current continuous variable mechanical device". , the entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of diesel engine intake vortex systems, and more particularly to a vortex continuously variable mechanism for a diesel engine. Background technique
  • Diesel engines are compression-ignition engines. For most diesel engines, the fogging of fuel alone is difficult to ensure good mixing of fuel and air, so air vortex is used to promote mixing. Good gas mixture formation can shorten the retardation period and combustion duration, make the diesel engine work softly, improve combustion, reduce harmful emissions, especially reduce NOx content and exhaust smoke, thus obtaining good economy, power and emissions. index.
  • the intake vortex intensity is not as high as possible, which is limited by the aeration performance of the engine and by the mutual interference between adjacent oil bundles.
  • the intake vortex intensity is not as high as possible, which is limited by the aeration performance of the engine and by the mutual interference between adjacent oil bundles.
  • the intake vortex intensity is not as high as possible, which is limited by the aeration performance of the engine and by the mutual interference between adjacent oil bundles.
  • the intake vortex intensity is not as high as possible, which is limited by the aeration performance of the engine and by the mutual interference between adjacent oil bundles.
  • For a certain cylinder diameter and speed engine how much intake vortex is selected, according to the fuel system parameters and combustion chamber structural parameters, excessive or weak intake vortex will cause combustion deterioration and harmful exhaust emissions;
  • the eddy current ratio has different requirements under different working conditions. Therefore, enhancing the air disturbance in the combustion chamber and accelerating the mixing of air and fuel plays an important role in ensuring rapid and complete combustion of the fuel near top dead center
  • the technical problem to be solved by the present invention is to provide a diesel vortex continuously variable mechanical device, which allows the eddy current ratio to be varied within a suitable range, so as to balance the diesel engine in the entire working condition range. Performance, improved fuel economy and reduced harmful emissions.
  • a diesel vortex continuously variable mechanical device includes a housing on which an intake port and an intake vortex disposed at a rear end of the intake port are continuously provided a variable passage; a throttle valve is disposed in the continuously variable passage of the intake vortex.
  • the rear end of the intake port is further provided with an EGR exhaust gas recirculation passage.
  • the EGR exhaust gas recirculation passage is a venturi having an EGR premixing chamber around the small diameter nozzle; the EGR premixing chamber has two passage ports: a first passage port and a second passage port.
  • the passage opening of the intake vortex continuous variable passage and the first passage port and the second passage opening of the EGR premixing chamber extend to the surface of the casing, respectively.
  • the intake vortex continuous variable passage, the EGR exhaust gas recirculation passage and the intake port are substantially located in the same curved plane, and the second passage opening of the EGR premixing chamber and the intake vortex are continuously continuous
  • the passage opening of the variable passage is located on the same side, and the first passage opening of the EGR premixing chamber is located on the side of both.
  • the throttle valve comprises a disc-shaped valve plate and a rotating shaft; an end of the rotating shaft is pivotally connected to a side wall of the housing, and a sealing portion is arranged at a joint of the rotating shaft; the disc-shaped valve plate and the rotating shaft Connected.
  • the projecting end of the rotating shaft located outside the casing is connected to one end of the swing arm, and the other end of the swing arm is connected to the driving mechanism.
  • the axis of the rotating shaft is perpendicular to the center line of the continuously variable channel of the intake vortex, and the angle between the plate surface of the valve plate and the center line of the continuously variable channel of the intake vortex is rotated with the rotation of the rotating shaft
  • the range of variation is 0 ⁇ 90°.
  • the eddy current ratio ranges from 0.2 to 2.5.
  • the inlet vortex continuous variable passage inlet cross-sectional shape is a square hole, and the four corners of the square hole are rounded transitions, and the transition rounding diameter is about seven tenths of the square hole side length.
  • the vortex continuously variable mechanical device provided by the present invention is provided with an intake vortex continuous variable passage at the rear end of the intake port, and is controlled by controlling a throttle valve placed in the continuously variable passage of the intake vortex.
  • the passage section of the passage can be continuously changed to change the vortex ratio to meet the matching vortex ratio under different working conditions, and the vortex ratio can be accurately controlled to fully mix the fuel and air, improve fuel economy and emissions, and use Variable eddy current controlled diesel engine
  • the fuel consumption rate is at least 205g/kwh, and the emission reaches the Euro IV standard.
  • the casting, processing and assembly of the invention are relatively simple and low in cost.
  • Figure 1 is a schematic perspective view of the present invention
  • Figure 2 is a schematic view of the vortex continuous variable passage and the EGR exhaust gas recirculation passage after the vortex continuously variable mechanical device passes through the intake port;
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • Figure 5 is a partial cross-sectional detailed view of the state in which the intake vortex continuous variable passage and the throttle valve are fully open in Figure 3. detailed description
  • the core of the invention is that a throttle valve is arranged in the continuously variable passage of the intake vortex, and the eddy current ratio is changed by changing the diameter cross section of the continuously variable passage of the intake vortex;
  • the eddy current ratio allows for a thorough mixing of fuel and air, thereby improving fuel economy and emissions.
  • the diesel vortex continuously variable mechanical device includes a casing 10 on which an intake port 20 is disposed, and an intake hose 20 is externally connected to the intake hose, and inside the casing 10,
  • the rear end of the port 20 has an intake vortex continuously variable passage 30, and a throttle valve 50 is disposed in the passage of the intake vortex continuous variable passage 30.
  • the rear end of the intake port 20 also has an EGR exhaust gas recirculation passage 40 to further reduce carbon dioxide emissions and improve fuel economy.
  • the EGR exhaust gas recirculation passage 40 is a venturi having an EGR premixing chamber 43 around the small diameter nozzle 42; the EGR premixing chamber 43 has two passage ports: the first passage Port 41 and second passage port 42.
  • the passage opening 31 of the intake vortex continuous variable passage 30 and the first passage port 41 and the second passage port 42 of the EGR premixing chamber 43 extend to the surface of the casing 10, respectively.
  • the intake vortex continuous variable passage 30, the EGR exhaust gas recirculation passage 40 and the intake port 20 are located substantially in the same curved plane, the second passage port 42 of the EGR premixing chamber 43 and the intake vortex
  • the passage port 31 of the continuously variable passage 30 is located on the same side, and the EGR premixing chamber
  • the first passage opening 41 of the 43 is located on the side of both.
  • the EGR passage port 41 is connected to an EGR pipe passing through the condenser.
  • the vortex continuous variable mechanical unit is provided with an EGR passage port 41 and a fresh air premixing chamber 43 and a venturi tube is used on the passage behind the EGR passage port 41 to enable the EGR exhaust gas and the fresh air to be sufficiently mixed and utilized.
  • the reverse flow is generated, and the intake vortex passage and the EGR exhaust gas recirculation passage of the device are compactly designed and light in weight.
  • the throttle valve 50 includes a disc-shaped valve plate 51 located in the continuously variable passage 30 of the intake vortex.
  • the valve plate 51 is coupled to the rotating shaft 52 disposed on the housing 10, and the end and the housing of the rotating shaft 52.
  • the side wall of the housing 10 is pivoted and sealed with the housing 10, and the rotating shaft 52 located outside the housing 10 is connected to the driving mechanism.
  • the driving mechanism may be an electronically controlled lever or may be vacuum controlled.
  • the rotating shaft 52 is connected to one end of the swing arm 53 and the other end of the swing arm 53 is connected.
  • the end of the swing arm 53 can be designed as a ball joint 54 for connecting with the electronic control rod, as long as the The use of the shaft control needs to be within the protection scope of this patent.
  • the axis line of the rotating shaft 53 is perpendicular to the center line of the inlet vortex continuous variable passage 30, that is, the rotating shaft core of the valve plate 51 is perpendicular to the direction of the intake vortex continuous variable passage 30; the plate of the valve plate 51
  • the angle between the face and the direction of the continuously variable flow passage 30 of the intake vortex is 0 to 90°, that is, with the rotation of the rotating shaft 52, the plate surface of the valve plate 51 and the center of the intake vortex continuously variable passage 30
  • the angle between the lines varies from 0 to 90°; the eddy current ratio ranges from 0.2 to 2.5.
  • the figure shows a state in which the throttle valve 50 of the intake vortex continuous variable passage 30 of the present invention is in a fully open position, that is, a plate surface of the valve plate 51 and a continuously variable passage of the intake vortex.
  • the angle between the 30 directions is 0°.
  • the intake vortex continuous variable passage 30 has a cross-sectional shape of a square hole, and the four corners of the square hole are rounded transitions, and the transition round diameter is about seven tenths of the square hole length.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

La présente invention concerne un dispositif mécanique à variation continue à tourbillon pour moteur diesel, comprenant une enveloppe pourvue d'un orifice d'admission d'air et d'un conduit à variation continue pour tourbillon à l'entrée disposé derrière ledit orifice d'admission. Dans ledit conduit à variation continue pour tourbillon à l'entrée est fixé un papillon des gaz. La présente invention commande le papillon des gaz situé dans le conduit à variation continue, pour tourbillon à l'entrée pour permettre à la section d'écoulement du conduit d'être à variation continue, et modifie ainsi le rapport de tourbillon pour satisfaire aux exigences correspondantes pour différentes charges de fonctionnement. Le dispositif permet de commander le rapport de tourbillon de manière précise et de mélanger correctement le carburant et l'air. En outre, le dispositif est peu coûteux et simple à couler, à fabriquer et à assembler. De préférence, un conduit de recirculation des gaz d'échappement (RGE) est prévu derrière ledit orifice d'admission.
PCT/CN2008/072966 2007-11-07 2008-11-06 Dispositif mécanique à variation continue à tourbillon pour moteur diesel WO2009067894A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710135371.0 2007-11-07
CN2007101353710A CN101158317B (zh) 2007-11-07 2007-11-07 高速柴油机电子控制涡流连续可变机械装置

Publications (1)

Publication Number Publication Date
WO2009067894A1 true WO2009067894A1 (fr) 2009-06-04

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ID=39306526

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/072966 WO2009067894A1 (fr) 2007-11-07 2008-11-06 Dispositif mécanique à variation continue à tourbillon pour moteur diesel

Country Status (2)

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CN (1) CN101158317B (fr)
WO (1) WO2009067894A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158317B (zh) * 2007-11-07 2011-09-21 奇瑞汽车股份有限公司 高速柴油机电子控制涡流连续可变机械装置
CN101761399B (zh) * 2010-02-09 2012-12-05 力帆实业(集团)股份有限公司 一种节气门结构
CN101907045A (zh) * 2010-08-17 2010-12-08 无锡隆盛科技有限公司 一种带节气门的egr阀
CN102410089A (zh) * 2010-09-20 2012-04-11 广西玉柴机器股份有限公司 轻型柴油机egr进气控制系统
CN102207027B (zh) * 2010-10-25 2013-03-13 浙江吉利汽车研究院有限公司 柴油机进气涡流调节结构
CN102374012A (zh) * 2011-11-08 2012-03-14 天津大学 配有废气再循环（egr）的汽油机进气涡流发生装置
CN103397959A (zh) * 2013-07-02 2013-11-20 广西玉柴机器股份有限公司 Egr发动机进气接管
GB2523378B (en) * 2014-02-24 2016-01-20 Perkins Engines Co Ltd Exhaust gas mixing system
JP6990364B2 (ja) * 2017-10-13 2022-01-12 いすゞ自動車株式会社 吸気ダクト
CN109281776B (zh) * 2018-11-29 2020-06-26 潍柴动力股份有限公司 一种废气回流故障监测方法及装置
CN109958555A (zh) * 2019-05-07 2019-07-02 一汽解放汽车有限公司 一种柴油机用简易高效egr混合装置

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US4635609A (en) * 1984-05-11 1987-01-13 Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek System and device for exhaust gas recirculation in combustion machine
US20030111065A1 (en) * 2001-12-18 2003-06-19 Blum David E. Variable capacity modular venturi system for exhaust gas recirculation in a diesel engine
CN2661937Y (zh) * 2003-10-16 2004-12-08 扬动股份有限公司 柴油机节气门
CN1651731A (zh) * 2004-02-03 2005-08-10 株式会社电装 柴油机的控制设备
CN1878944A (zh) * 2003-11-28 2006-12-13 株式会社日立制作所 柴油发动机的egr控制装置及马达驱动式节流阀装置
CN1918376A (zh) * 2004-02-10 2007-02-21 西门子公司 节流阀装置
CN101158317A (zh) * 2007-11-07 2008-04-09 奇瑞汽车有限公司 高速柴油机电子控制涡流连续可变机械装置
CN201133287Y (zh) * 2007-12-26 2008-10-15 奇瑞汽车股份有限公司 一种新型高速柴油机电子控制涡流连续可变机械装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635609A (en) * 1984-05-11 1987-01-13 Nederlandse Centrale Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek System and device for exhaust gas recirculation in combustion machine
US20030111065A1 (en) * 2001-12-18 2003-06-19 Blum David E. Variable capacity modular venturi system for exhaust gas recirculation in a diesel engine
CN2661937Y (zh) * 2003-10-16 2004-12-08 扬动股份有限公司 柴油机节气门
CN1878944A (zh) * 2003-11-28 2006-12-13 株式会社日立制作所 柴油发动机的egr控制装置及马达驱动式节流阀装置
CN1651731A (zh) * 2004-02-03 2005-08-10 株式会社电装 柴油机的控制设备
CN1918376A (zh) * 2004-02-10 2007-02-21 西门子公司 节流阀装置
CN101158317A (zh) * 2007-11-07 2008-04-09 奇瑞汽车有限公司 高速柴油机电子控制涡流连续可变机械装置
CN201133287Y (zh) * 2007-12-26 2008-10-15 奇瑞汽车股份有限公司 一种新型高速柴油机电子控制涡流连续可变机械装置

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Publication number Publication date
CN101158317A (zh) 2008-04-09
CN101158317B (zh) 2011-09-21

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