WO2020062738A1 - Moteur et procédé d'allumage par compression stratifiée de carburant dans un cylindre - Google Patents

Moteur et procédé d'allumage par compression stratifiée de carburant dans un cylindre Download PDF

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Publication number
WO2020062738A1
WO2020062738A1 PCT/CN2019/072723 CN2019072723W WO2020062738A1 WO 2020062738 A1 WO2020062738 A1 WO 2020062738A1 CN 2019072723 W CN2019072723 W CN 2019072723W WO 2020062738 A1 WO2020062738 A1 WO 2020062738A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
fuel
engine
exhaust gas
combustion
Prior art date
Application number
PCT/CN2019/072723
Other languages
English (en)
Chinese (zh)
Inventor
杜家坤
陈泓
李钰怀
冶麟
Original Assignee
广州汽车集团股份有限公司
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 广州汽车集团股份有限公司 filed Critical 广州汽车集团股份有限公司
Publication of WO2020062738A1 publication Critical patent/WO2020062738A1/fr

Links

Classifications

    • 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
    • F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • 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
    • F02B75/00—Other engines
    • F02B75/12—Other methods of operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • 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
    • F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • 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

  • An engine includes a cylinder, a cylinder head, a piston, and an injector, the cylinder head is disposed on the cylinder, the piston is movably disposed in the cylinder, and the cylinder head and the cylinder A combustion chamber is formed between the pistons, the fuel injector is arranged on the cylinder head, the fuel injector is used to inject fuel into the combustion chamber, and the cylinder head is provided with a spiral intake duct and an exhaust duct An exhaust gas guide channel is connected between the spiral intake channel and the exhaust gas channel, and an exhaust gas control valve for controlling the flow of exhaust gas is provided on the exhaust gas guide channel, and when the engine is in an intake stroke, the exhaust gas is After the air and air pass through the spiral inlet, a vortex mixed gas is formed and enters the combustion chamber of the cylinder.
  • an end of the piston is recessed in a direction away from the cylinder head to form a first A combustion tank and a second combustion tank, the first combustion tank is located in a middle portion of the piston, and the second combustion tank is disposed along a circumferential direction of the first combustion tank.
  • the second combustion tank is an annular groove and surrounds the periphery of the first combustion tank, and the depth of the second combustion tank is greater than the depth of the first combustion tank. shallow.
  • the cylinder head of the engine of the present invention is provided on the cylinder, and the piston is movably disposed in the cylinder.
  • a combustion chamber is formed between the cylinder head and the piston.
  • An injector is provided on the cylinder head. Fuel injection, the cylinder head is provided with a spiral intake duct and an exhaust duct, an exhaust gas guide duct is connected between the spiral intake duct and the exhaust duct, and an exhaust gas control valve for controlling the exhaust gas flow is provided on the exhaust gas duct.
  • FIG. 2 is a schematic structural diagram of an engine of the present invention during an intake stroke.
  • the injector 14 injects gasoline fuel into the cylinder 11, the density of the gasoline is relatively high, and it is thrown into the peripheral region 101b near the side wall of the cylinder 11 under the action of eddy current inertia. And mixed with exhaust gas and air to achieve stratification of gasoline, exhaust gas and air mixture.
  • step three the fuel is injected into the cylinder 11 during the compression stroke by using the fuel injector 14, and the fuel is gasified and mixed with the air in the central area 101a of the cylinder 11.
  • the injector 14 injects a small amount of gasoline fuel into the cylinder 11, and the injected gasoline fuel enters the first combustion tank 102 of the piston 13, and the first combustion tank 102 discharges gasoline Fuel limit In the central region 101a of the cylinder 11, to avoid the diffusion of gasoline fuel into the cylinder 11 of the peripheral region 101b, 10 la at this time the air mixing gasoline fuel and the central region to form a more stable mixture.
  • the vortex mixture in the peripheral area 101b flows around the axis of the cylinder 11, when the piston 13 moves in the direction close to the cylinder head 12, the vortex mixture will not be destroyed, which is beneficial to the layering of the mixture Advantage.
  • Step 4 At the end of the compression stroke, the mixture in the central area 101a is first compressed to form a plurality of fire cores, and the fire cores ignite the mixture in the peripheral area 101b.
  • the working fluid (mixed air of air and fuel) in the cylinder 11 is preheated by using a glow plug to ensure that the fuel can catch fire naturally.
  • Exhaust control valve 126 opens when fully opened, and controls injector 14 to inject a single fuel during the intake stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

L'invention concerne un moteur comprenant un cylindre (11), une culasse (12), un piston (13) et un injecteur de carburant (14). La culasse (12) est disposée sur le cylindre (11). Le piston (13) est disposée de manière mobile dans le cylindre (11). Une chambre de combustion (101) est formée entre la culasse (12) et le piston (13). L'injecteur de carburant (14) est disposé sur la culasse (12). L'injecteur de carburant (14) est utilisé afin d'injecter du carburant dans la chambre de combustion (101). Un canal d'entrée d'air hélicoïdal (121) et un canal d'échappement (123) sont disposés sur la culasse (12). Un canal de guidage d'échappement (125) est relié entre le canal d'entrée de gaz hélicoïdal (121) et le canal d'échappement (123). Une soupape de commande d'échappement (126) destinée à commander un débit d'échappement est disposée sur le canal de guidage d'échappement (125). Lorsque le moteur est dans une course d'admission, l'échappement et l'air passent à travers le canal d'entrée de gaz hélicoïdal afin de former un mélange de gaz tourbillonnant, puis entrent dans la chambre de combustion du cylindre. Le moteur évite les cognements provoqués par une combustion spontanée d'un mélange gazeux au niveau d'une extrémité essence lorsqu'un taux de compression est élevé, et améliore l'efficacité thermique. L'invention concerne également un procédé d'allumage par compression stratifiée d'un carburant dans un cylindre.
PCT/CN2019/072723 2018-09-26 2019-01-22 Moteur et procédé d'allumage par compression stratifiée de carburant dans un cylindre WO2020062738A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811126324.4 2018-09-26
CN201811126324.4A CN110953066B (zh) 2018-09-26 2018-09-26 发动机及燃料缸内分层压燃方法

Publications (1)

Publication Number Publication Date
WO2020062738A1 true WO2020062738A1 (fr) 2020-04-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/072723 WO2020062738A1 (fr) 2018-09-26 2019-01-22 Moteur et procédé d'allumage par compression stratifiée de carburant dans un cylindre

Country Status (2)

Country Link
CN (1) CN110953066B (fr)
WO (1) WO2020062738A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114000940A (zh) * 2021-07-08 2022-02-01 柳州职业技术学院 一种提高发动机效率的方法
CN113719341B (zh) * 2021-07-29 2022-11-29 东风商用车有限公司 多分区燃烧室的射流-压燃燃烧系统

Citations (6)

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CN1603592A (zh) * 2004-11-19 2005-04-06 清华大学 用两次喷射控制直喷式汽油机压缩着火燃烧的方法
JP2013044299A (ja) * 2011-08-25 2013-03-04 Mazda Motor Corp 内燃機関
CN104533584A (zh) * 2014-10-30 2015-04-22 长城汽车股份有限公司 发动机进排气系统及车辆
CN104675506A (zh) * 2014-12-31 2015-06-03 大连理工大学 柴油机多点分布式导向台燃烧室
CN104791149A (zh) * 2015-04-21 2015-07-22 吉林大学 汽油机空气与废气分层调节装置及其方法
WO2018100707A1 (fr) * 2016-12-01 2018-06-07 マツダ株式会社 Moteur à essence à allumage par compression

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FR2728939A1 (fr) * 1994-12-29 1996-07-05 Inst Francais Du Petrole Procede et dispositif ameliores de recyclage de gaz d'echappement a l'admission d'un moteur quatre temps a allumage commande
US5918577A (en) * 1998-02-04 1999-07-06 Ford Global Technologies, Inc. Stratified exhaust residual engine
WO2001055567A1 (fr) * 2000-01-25 2001-08-02 Kabushiki Kaisha Toyota Chuo Kenkyusho Moteur a combustion interne a injection directe
DE10161853A1 (de) * 2001-12-15 2003-06-26 Daimler Chrysler Ag Brennkraftmaschine mit Direkteinspritzung
DE10307456B4 (de) * 2003-02-21 2007-10-31 Audi Ag Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
JP2004270566A (ja) * 2003-03-10 2004-09-30 Toyota Industries Corp 予混合圧縮自着火式内燃機関
DE102004003900A1 (de) * 2004-01-27 2005-08-18 Adam Opel Ag Brennkraftmaschine
JP5278399B2 (ja) * 2010-10-14 2013-09-04 株式会社デンソー 内燃機関の吸気制御装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1603592A (zh) * 2004-11-19 2005-04-06 清华大学 用两次喷射控制直喷式汽油机压缩着火燃烧的方法
JP2013044299A (ja) * 2011-08-25 2013-03-04 Mazda Motor Corp 内燃機関
CN104533584A (zh) * 2014-10-30 2015-04-22 长城汽车股份有限公司 发动机进排气系统及车辆
CN104675506A (zh) * 2014-12-31 2015-06-03 大连理工大学 柴油机多点分布式导向台燃烧室
CN104791149A (zh) * 2015-04-21 2015-07-22 吉林大学 汽油机空气与废气分层调节装置及其方法
WO2018100707A1 (fr) * 2016-12-01 2018-06-07 マツダ株式会社 Moteur à essence à allumage par compression

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CN110953066A (zh) 2020-04-03
CN110953066B (zh) 2021-04-06

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