WO2003044346A1 - Dispositif de guidage d'admission pour moteur a combustion interne - Google Patents

Dispositif de guidage d'admission pour moteur a combustion interne Download PDF

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Publication number
WO2003044346A1
WO2003044346A1 PCT/CN2002/000845 CN0200845W WO03044346A1 WO 2003044346 A1 WO2003044346 A1 WO 2003044346A1 CN 0200845 W CN0200845 W CN 0200845W WO 03044346 A1 WO03044346 A1 WO 03044346A1
Authority
WO
WIPO (PCT)
Prior art keywords
intake
internal combustion
combustion engine
air
guide device
Prior art date
Application number
PCT/CN2002/000845
Other languages
English (en)
Chinese (zh)
Inventor
Naicheng Tan
Yaofu Jiang
Original Assignee
Jiangsu Changfa Group
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 Jiangsu Changfa Group filed Critical Jiangsu Changfa Group
Priority to AU2002366207A priority Critical patent/AU2002366207A1/en
Priority to CNB028273524A priority patent/CN100389250C/zh
Publication of WO2003044346A1 publication Critical patent/WO2003044346A1/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
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
    • 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 technical improvement scheme disclosed now mainly optimizes the shape and size of the intake port to increase the intake air flow to form a high-speed swirling vortex when passing through the intake port, and improve combustion.
  • US Pat. No. 4,274,386 discloses a through-plate type carburetor, which includes a thin plate clamped and fixed between the carburetor and the intake manifold.
  • the thin plate has a thickness consistent with the carburetor outlet and the intake manifold inlet.
  • the other side of the guide vane is also in the same direction.
  • the apex of the guide vane bends to form a cup or funnel shape to guide the fuel-air mixture that has not vaporized
  • the liquid part is further atomized and vaporized when being sucked into the air flow flowing toward the center of the opening at the apex of the plurality of guide vanes to further help inhale the air and further vaporize the mixture at the apex to improve combustion Efficiency and reduce pollution.
  • the transparent flat-plate carburetor is only suitable for gasoline engines.
  • US 4432312 The US patent discloses an intake port of an internal combustion engine with a variable vortex guide vane.
  • a plurality of rotatable guide vanes is provided at the end of the intake port adjacent to the head of the intake valve, thereby changing the engine throttle.
  • the vortex intensity of the intake air charge applied to the cylinder is changed accordingly to effectively meet the vortex required when the throttle is partially opened and the relatively free flow required when the throttle is fully opened or fully loaded Nai pieces.
  • to install these rotatable guide vanes on the cylinder head of the internal combustion engine adjacent to the inlet end of each intake valve head requires a major modification to the cylinder head, which may even weaken the strength of the cylinder head.
  • CN 2105560U Chinese utility model patent application specification discloses an air vortex device for an internal combustion engine, which includes a casing and a set of guide vanes extending in a radial direction from the casing, so as to generate vortex of the intake air.
  • the guide vanes have slits.
  • the air vortex device is installed at the center of the air cleaner and at the exhaust manifold inlet. Since the air sucked from the air cleaner needs to flow through the carburetor and the intake manifold to reach the combustion chamber of the internal combustion engine, it is difficult for the provided air swirl device to generate a strong swirl in the combustion chamber.
  • CN 2334879Y Chinese Utility Model Patent Specification discloses an engine turbine combustor installed between an air filter and a carburetor of an automobile engine, that is, an exhaust pipe of the air filter for increasing intake air.
  • the turbine combustor is composed of a cylindrical shell and a plurality of guide vanes arranged in the shell at equal intervals in the circumferential direction.
  • the guide vanes are fixed by means of a tongue formed at the end of the guide vane and a tongue hole formed on the shell wall Inside a cylindrical shell. Since the air still needs to pass through a long passage to reach the combustion chamber, it is still difficult for the turbine burner to generate a strong swirl in the combustion chamber.
  • the connection between each guide vane of the turbo-fuel burner and the cylindrical shell can only be completed through a separate assembly process, which does not meet the needs of mass production.
  • the present invention aims at overcoming the shortcomings of the prior art, and provides an intake guide device for an internal combustion engine, which has a simple structure, no moving parts, does not affect the volumetric efficiency of the engine, and can cause air to vortex when entering the cylinder.
  • the intake guide device is close to the intake valve of the internal combustion engine cylinder, which can not only enhance the intensity of the swirling vortex of the air entering the combustion chamber of the internal combustion engine, and make the fuel and air fully mixed, but also do not need to modify the cylinder head of the internal combustion engine.
  • the intake air guide device of the internal combustion engine is provided with inclined guide vanes to generate a swirling flow of the gas flowing through the guide vanes.
  • the guide device is installed at the connection between the cylinder head and the intake pipe of the internal combustion engine.
  • the guide vanes extend into an intake passage of a cylinder head of an internal combustion engine.
  • the internal combustion engine air intake guide device provided has a first-class linear guide vane, which is fixed to an intake flange interface of a cylinder head through a flange, and the guide vane is close to the intake air.
  • One side surface of the channel has a blade head partially extending into the vortex chamber of the cylinder head, preventing airflow from entering the vortex chamber in advance.
  • the guide vane is preferably biased toward the bottom surface of the intake passage, and the width of the blade head is narrowed to increase the flow area, reduce the flow resistance, and enhance the vortex intensity.
  • the tip portion of the blade head is preferably slightly curved toward the back of the blade.
  • the intake air guide device with guide vanes of the present invention is installed at the connection between the cylinder head and the intake pipe of the internal combustion engine, and the guide vanes extend into the intake passage of the internal combustion engine cylinder head, so that The guide vane is close to the intake valve of the internal combustion engine cylinder, preventing the airflow from entering the vortex chamber in advance, which can effectively enhance the swirling vortex intensity of the air entering the combustion chamber of the internal combustion engine, fully mix the fuel and air, improve combustion efficiency, and achieve fuel saving and purification
  • the purpose of the exhaust gas to reduce pollution, without the need to make major modifications to the cylinder head of the internal combustion engine, can be applied to the existing internal combustion engine.
  • the air intake deflector does not have any moving parts. Only an air duct deflector fixed between the cylinder head intake flange and the intake manifold flange can be used to prevent the airflow from entering the vortex chamber in advance.
  • the distance that the airflow advances makes it enter the vortex chamber tangentially, and then enter the air rainbow after the vortex is generated. In this way, the distance of the tangential travel of the airflow is increased, the flow of the tangential travel of the airflow is increased, and the vortex entering the gas red is enhanced; meanwhile, the condition of the airflow is improved, and the flow resistance is reduced.
  • the combustion process in the combustion chamber of the diesel engine is improved, and the fuel consumption of the diesel engine is reduced.
  • FIG. 1 is an assembly schematic diagram of a first embodiment of an air intake guide device of an internal combustion engine of the present invention
  • FIG. 2 is a cross-sectional view taken along the A-A section in FIG. 1;
  • FIG. 3 is a cross-sectional view of a first embodiment of an air intake guide device of an internal combustion engine of the present invention
  • FIG. 4 is a cross-sectional view taken along the B-B cross-section in FIG. 3;
  • FIG. 5 is a top view of an embodiment of an air intake guide device of an internal combustion engine according to the present invention
  • FIG. FIG. 6 is a plan view of a second embodiment of an air intake guide device for an internal combustion engine of the present invention
  • FIG. 7 is a plan view of a third embodiment of an air intake guide device for an internal combustion engine of the present invention
  • FIG. 8 is a cross-sectional view taken along the line C-C in FIG. 7;
  • FIG. 9 is an assembly cross-sectional view of a third embodiment of an intake air guide device of an internal combustion engine of the present invention.
  • FIG. 10 is a top cross-sectional view of a preferred embodiment of the air intake diversion device of the present invention installed in a single-cylinder diesel gas rainbow head;
  • FIG. 11 is an arrow A view of FIG. 10;
  • FIG. 12 is a sectional view taken along the B-B section in FIG. 10;
  • FIG. 13 is a top view of the embodiment shown in FIG. 10;
  • FIG. 14 is a front view of the embodiment shown in FIG. 10;
  • FIG. 15 is a side view of the embodiment shown in FIG. 14;
  • FIG. 16 is a perspective view of the embodiment shown in FIG.
  • FIG. 1 and FIG. 2 are assembly schematic diagrams of a first embodiment of an intake guide device of an internal combustion engine of the present invention.
  • the air intake guide device of the present invention is installed on the joint surface of the air intake pipe 5 and the gas rainbow head 4, and a guide vane 8 and a flange 81 sandwiched between the air intake pipe 5 and the air bow 4 are formed as a whole.
  • the bolts (not shown) connecting the intake pipe 5 and the gas head 4 are fixed, and the guide vanes 8 of the air intake guide device protrude into the intake passage 10 of the cylinder head 4. After the intake valve is opened, when the air flows through the intake duct 6 and the cylinder head intake passage 10, it is necessarily guided by the guide vanes 8 to generate a vortex.
  • the guide vane 8 Since the guide vanes 8 can reach the position close to the intake valve, the intake air entering the combustion chamber still maintains a strong swirling vortex, and fully mixed with the fuel for combustion.
  • the guide vane 8 is a curved surface, which is inclined at a certain angle to cause the airflow to rotate. The best inclination angle, geometry and material of the guide vane 8 can be selected through experiments to achieve the best fuel-saving and pollution-reducing effect. fruit.
  • the guide vane 8 and the gasket 1 are made into one body to reduce cost and facilitate assembly, and is suitable for mass production with a mold, and can be conveniently applied to an existing internal combustion engine.
  • FIGs 3, 4 and 5 show a first embodiment of the intake air guiding device of the present invention.
  • the shape of the guide vane 8 is inclined with respect to the axis of the intake duct, and it extends to the intake valve to enhance the swirling effect of the intake flow.
  • FIG. 5 reflects that most of the air flowing through the intake passage 10 must be guided by the guide vanes 8.
  • Fig. 6 is a plan view of a second embodiment of the present invention, and three separate guide vanes 8 are provided in the figure.
  • FIG. 7 is a plan view of a third embodiment of the air intake guide device of the present invention.
  • the shape of this embodiment is designed to have a circular seat 12 with a peripheral wall.
  • a circular air passage is formed in the circular seat 12, and the guide vanes 8 It is integrated with the circular seat 12 as long as the circular seat 12 is designed to match the inlet of the gas inlet of the internal combustion engine gas rainbow head.
  • the air intake deflector provided in this embodiment can be press-fitted at the inlet of the cylinder head, and then the engine intake pipe is assembled, which can reduce the collision in the process flow and save the total assembly time.
  • the flow guiding device may also have a non-circular seat, and the guide vanes are connected to the non-circular seat.
  • the non-circular seat When assembling, the non-circular seat can be pressed into the cylinder head intake duct, intake duct air duct and air that cooperate with the outer shape. Filter outlet.
  • the device can also be press-fitted at the end of the intake pipe, or the guide vanes 8 can be reversely extended into the intake pipe 6.
  • the guide vanes 8 protruding into the rainbow-head air passage 10 are easy to be damaged during the transportation.
  • the door can avoid scratches or pilling during transportation, and can save production materials.
  • FIG. 8 is a cross-sectional view taken along the line C-C in FIG. 7, showing that the circular seat 12 and the guide vane 8 are connected together.
  • the upper surface of the cylinder head is 36.
  • a guide hole 37 for the intake valve stem and a guide hole for the exhaust valve stem (not shown) are opened in the upper part of the gas head.
  • the intake valve seat hole is 47, and the exhaust valve seat hole is not shown.
  • An air intake manifold (not shown) is connected to the gas rainbow head through an air inlet flange 39.
  • the exhaust manifold is connected to the cylinder head through a flange (not shown).
  • the intake port in the gas rainbow head is 10, and the exhaust port is not shown in the figure.
  • the flange 81 of the cylinder head intake duct deflector 8 is installed between the flange (not shown) of the intake manifold and the cylinder head intake port flange 39 to fix the deflector 8
  • the blade portion 82 of the deflector is adjacent to the right side surface 12 of the air inlet 10.
  • the shape of the blade portion 82 of the deflector 8 is made streamlined, which reduces the resistance of the intake air and increases the vortex of the intake air. See Figures 13, 14, 15 and 16 for detailed views of the deflector 8.
  • the deflector 8 is divided into a deflector flange 81, a deflector blade 82 and a blade head 83, an upper surface 84 of the deflector, a lower surface 85 of the deflector, and Left side 86, right side 87 of the deflector.
  • the inner surface of the cylinder head intake duct 10 is divided into a left side 11, a right side 12, an upper surface 13, and a lower surface 14.
  • the shape of the inlet of the cylinder head inlet 10 is generally round or rectangular.
  • the shape of the deflector blade 82 is connected to the flange 81 on the one hand, and its lower surface 85 is to be close to the right side 12 of the air intake duct. Therefore, at the connection between the blade and the flange 81, a smooth transition is required. .
  • an intake air guide device of an internal combustion engine is provided with first-class linear guide vanes, and is fixed to an intake flange of a cylinder head through a flange. On the interface, the guide vane is close to one side surface of the air intake passage.
  • the vane 8 of the deflector of the present invention has a vane head 83 partially extending into the cylinder head vortex chamber 42 to prevent airflow from entering the vortex chamber in advance and directing the airflow to the tangential direction of the cylinder head vortex chamber 42.
  • the guide vane 82 is preferably biased toward the bottom surface 14 of the intake passage 10 and the width of the blade head 83 is narrowed (in the preferred embodiment, the method is implemented by using a chamfered angle) to increase the circulation. Area, reducing flow resistance and enhancing eddy current strength.
  • the tip portion of the blade head 83 is slightly curved toward the lower surface 85 of the blade, and the effect is even better.
  • the cylinder bore is 110mm
  • the length of the deflector blade head 83 projecting into the vortex chamber is 7mm
  • the width of the blade is 20mm
  • the gap is less than 2mm
  • the experimental test results the power of the engine is unchanged
  • the fuel consumption of the engine has been reduced by 10g / KWh.
  • the fuel consumption is reduced to 5 to 25 g / KWh with the same engine power, which indicates the economic value of the present invention.
  • the air intake guide device of the present invention can be made of sheet metal by punching or made of synthetic material, and the original curved surface and the overall geometry can be set as required.
  • the vortex effect of the overall gas flow can be generated, which has a stronger effect than controlling the air flow only by the wall of the air intake duct.
  • the invention can improve the economy, the solution is clean, and it can be easily manufactured by applying the existing process technology.
  • the present invention can be conveniently and economically applied to a gasoline engine, a diesel engine, or an internal combustion engine using other fuels, whether a multi-cylinder engine or a single-cylinder engine, or a vertical or horizontal engine. The investment is small, but the effect of saving fuel and reducing emissions and pollution is huge.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Cette invention concerne un dispositif de guidage d'admission disposé au niveau de la connexion d'un conduit d'admission et d'un couvercle de cylindres pour un moteur à combustion interne. Ledit dispositif comprend des pales de guidage inclinées saillantes à l'intérieur de l'orifice d'entrée dans un couvercle de cylindre pour former un tourbillon dans un cylindre. Dans un mode de réalisation préféré, ledit dispositif de guidage est doté d'une pale de guidage profilée fixée au niveau de l'orifice d'entrée dans le couvercle de cylindre par un rebord. Ladite pale de guidage est dotée d'une partie de tête saillante partiellement dans la chambre de tourbillonnement, dans le couvercle de cylindre, près de la surface latérale de l'orifice d'entrée, afin d'empêcher qu'un flux ne s'écoule à l'intérieur de la chambre de tourbillonnement en avance. Il est préférable que la pale de guidage soit inclinée vers le fond de l'orifice d'entrée, et que la largeur de la tête de la pale soit plus petite. Il est également préférable que la pointe de la tête de la pale soit quelque peu courbée vers l'arrière de la pale.
PCT/CN2002/000845 2001-11-23 2002-11-25 Dispositif de guidage d'admission pour moteur a combustion interne WO2003044346A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002366207A AU2002366207A1 (en) 2001-11-23 2002-11-25 An inlet guiding device for an internal combustion engine
CNB028273524A CN100389250C (zh) 2001-11-23 2002-11-25 一种内燃机进气导流装置及装有这种导流装置的内燃机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01139378.5 2001-11-23
CN01139378A CN1421601A (zh) 2001-11-23 2001-11-23 一种内燃机进气导流装置

Publications (1)

Publication Number Publication Date
WO2003044346A1 true WO2003044346A1 (fr) 2003-05-30

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PCT/CN2002/000845 WO2003044346A1 (fr) 2001-11-23 2002-11-25 Dispositif de guidage d'admission pour moteur a combustion interne

Country Status (3)

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CN (2) CN1421601A (fr)
AU (1) AU2002366207A1 (fr)
WO (1) WO2003044346A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102482986A (zh) * 2009-08-20 2012-05-30 品纳科动力有限公司 高涡流引擎
FR2981985A1 (fr) * 2011-10-27 2013-05-03 Pierre Yves Junker Generateur de vortex compact
CN105443275A (zh) * 2015-12-14 2016-03-30 重庆博玉天成文化传媒有限责任公司 一种节油器及汽车发动机系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1707087B (zh) * 2004-06-10 2010-04-28 Avl里斯脱有限公司 至少具有一个进气流道的内燃机
JP6994998B2 (ja) * 2018-03-29 2022-01-14 本田技研工業株式会社 エンジン
CN109159902B (zh) * 2018-08-23 2020-08-21 金湖县农副产品营销协会 一种无人机发动机进气口引流机构
CN109236504B (zh) * 2018-11-22 2023-08-29 潍坊力创电子科技有限公司 气体发动机空气/燃气混合装置
CN113898793A (zh) * 2021-11-19 2022-01-07 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） 风管导流附件

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274386A (en) * 1979-08-24 1981-06-23 Jose Reyes Turbo plate vaporizer
US4432312A (en) * 1982-02-08 1984-02-21 General Motors Corporation Engine intake port with variable swirl vanes
WO1996035045A1 (fr) * 1995-04-29 1996-11-07 Ford Motor Company Limited Moteur a charge stratifiee

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274386A (en) * 1979-08-24 1981-06-23 Jose Reyes Turbo plate vaporizer
US4432312A (en) * 1982-02-08 1984-02-21 General Motors Corporation Engine intake port with variable swirl vanes
WO1996035045A1 (fr) * 1995-04-29 1996-11-07 Ford Motor Company Limited Moteur a charge stratifiee

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102482986A (zh) * 2009-08-20 2012-05-30 品纳科动力有限公司 高涡流引擎
FR2981985A1 (fr) * 2011-10-27 2013-05-03 Pierre Yves Junker Generateur de vortex compact
CN105443275A (zh) * 2015-12-14 2016-03-30 重庆博玉天成文化传媒有限责任公司 一种节油器及汽车发动机系统

Also Published As

Publication number Publication date
CN100389250C (zh) 2008-05-21
CN1615396A (zh) 2005-05-11
AU2002366207A1 (en) 2003-06-10
CN1421601A (zh) 2003-06-04

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