EP2169211B1 - Corps de papillon doté d'une soupape d'injection de carburant - Google Patents

Corps de papillon doté d'une soupape d'injection de carburant Download PDF

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Publication number
EP2169211B1
EP2169211B1 EP09171587.0A EP09171587A EP2169211B1 EP 2169211 B1 EP2169211 B1 EP 2169211B1 EP 09171587 A EP09171587 A EP 09171587A EP 2169211 B1 EP2169211 B1 EP 2169211B1
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EP
European Patent Office
Prior art keywords
throttle
bank
paired
throttle body
fuel injection
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.)
Not-in-force
Application number
EP09171587.0A
Other languages
German (de)
English (en)
Other versions
EP2169211A1 (fr
Inventor
Masahiro Toriumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Keihin Corp
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Keihin Corp
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Filing date
Publication date
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Publication of EP2169211A1 publication Critical patent/EP2169211A1/fr
Application granted granted Critical
Publication of EP2169211B1 publication Critical patent/EP2169211B1/fr
Not-in-force legal-status Critical Current
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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
    • 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
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • 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
    • F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10078—Connections of intake systems to the engine
    • F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • 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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10124—Ducts with special cross-sections, e.g. non-circular cross-section
    • 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
    • F02M35/1015—Air intakes; Induction systems characterised by the engine type
    • F02M35/10177—Engines having multiple fuel injectors or carburettors per cylinder
    • 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
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
    • 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
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto
    • F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
    • F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve

Definitions

  • the present invention relates to an engine arrangement with the features of the preamble part of claim 1.
  • a single fuel injection valve attached to the throttle body is designed to form, at the time of fuel injection, fuel spray forms directed in the two respective directions to paired branched paths of the intake port.
  • fuel injection holes have to be processed with a high-level technology, for forming, by use of the single fuel injection valve, the fuel spray forms directed in the two respective directions, and causing the fuel spray forms to precisely be directed to the two branched paths.
  • This high-level processing technology tends to increase costs.
  • the conventional throttle body is not easily applied to a large-displacement engine.
  • Japanese Patent No. 3724184 has disclosed an engine arrangement with another type of throttle body having fuel injection valves.
  • This throttle body has paired fuel injection valves, which are arranged in parallel, attached thereto, and is capable of injecting a large amount of fuel to cope with a large-displacement engine.
  • the throttle body having the cross-section of its intake passage complete round, makes it difficult to secure a space, which allows the two parallel fuel injection valves to attach thereto, in a sidewall of the throttle body. Accordingly, it is difficult to direct fuel injections of the two fuel injection valves toward two predetermined directions.
  • US 5829408 A discloses an engine arrangement comprising an intake port having a downstream side formed into a pair of branched paths, a throttle body having paired fuel injection valves being adapted to inject fuel towards the pair of branched paths and a throttle valve with a throttle body and a valve shaft penetrating the throttle body perpendicular to the direction in which the pair of branched paths of the intake port are arranged.
  • An object of the present invention is to provide an V-type engine arrangement wherein the throttle bodies are arranged in an efficient and space saving manner allowing a precise control of the fuel injection from a small flow amount to a large flow amount.
  • the oblong circle includes an ellipse or an oval.
  • the oblong circle is a flat circle formed of a combination of multiple arcs, or a combination of multiple arcs and multiple straight lines.
  • the transverse cross-section of the intake passage of each of the throttle bodies is formed of an oblong circle having the long diameter extending in the direction in which the branched paths of the intake port are arranged, and the short diameter extending orthogonal to the long diameter. This secures a large flow passage area for the intake passage.
  • any one of the sidewalls extending along the long diameter of the throttle bodies can have an attachment space wider than the sidewall of a throttle body which has a perfect circle cross-sectional shape and the same passage area.
  • the paired fuel injection valves arranged along the long diameter are attached to one of the sidewalls. This enables the free arrangement of the two fuel injection valves, so that the two fuel injection valves can be arranged corresponding to the interval between the branched paths. Accordingly, it is possible to direct the conic spray forms, formed by fuel injected from the two respective fuel injection valves, to the respective branched paths appropriately. This prevents the injected fuel to attach to the inner surface of the intake port as few as possible, thereby leading to contributions to reduction in fuel consumption and exhaust emission.
  • the oblong circle is formed by combining paired opposed short arcs with paired opposed long arcs or paired opposed straight lines, the paired short arcs extending in a direction of the short diameter, the paired long arcs or straight lines being longer than the short arcs and extending in a direction of the long diameter;
  • the contour of each of the intake passage and the throttle valve which extends along the short diameter is formed by the short arcs. Therefore, when the throttle valve is opened from its closed position even slightly, a space is formed between end surfaces of the throttle valve extending along the direction of the short diameter and inner surfaces of the intake passage, which oppose to the end surfaces. This prevents friction between the end surfaces of the throttle valve and the inner surfaces of the intake passage, and accordingly allows smooth opening and closing of the throttle valve.
  • a pair of the throttle bodies are respectively attached to sidewalls of first and second banks of a V-type engine, the sidewalls facing a valley between the two banks, and the throttle bodies are arranged so that the short diameters of the intake passages are directed in a direction in which the first and second banks are arranged, i.e. so that the short diameters are contained in a plane perpendicular to a crank shaft of the engine, said plane extending between the first bank and the second bank;.
  • the first and second throttle bodies arranged over the valley between the first and second banks of the V-type engine are arranged in a flat form in the direction as the two banks are arranged. Accordingly, the first and second throttle bodies can be easily arranged over the narrow valley without interfering with each other.
  • FIG. 1 shows an engine E mounted on a body of an automobile, a motorcycle or the like.
  • the engine E includes a first bank B1 and a second bank B2 which project upward from a crank supporting part 2 to together form a V shape.
  • the crank supporting part 2 supports a crank shaft 1.
  • Each of the banks B1 and B2 includes a cylinder block 3 connected to the crank supporting part 2, and a cylinder head 4 connected to the upper end of the cylinder block 3.
  • the cylinder block 3 includes a cylinder bore 6 in which a piston 5 reciprocates.
  • the cylinder head 4 includes: a combustion chamber 7 communicating with the cylinder bore 6; an intake port 8 and an exhaust port 9 which are opened to this combustion chamber 7.
  • the intake port 8 includes branched paths 8a and 8a into which the intake port 8 is branched from a longitudinal middle portion thereof and the branched paths 8a and 8a extend toward the combustion chamber 7 in a direction to which the crank shaft 1 extends.
  • Paired intake valves 10 and 10 for opening and closing the respective branched paths 8a and 8a are installed in the cylinder head 4.
  • the exhaust port 9 has a branched structure similar to that of the intake port 8.
  • Paired exhaust valves 11 and 11 (only one of which is shown in FIG. 1 ) for opening and closing the exhaust port 9 are installed in the cylinder head 4 as well.
  • the upstream ends of the intake ports 8 and 8 of the two banks B1 and B2 are opened to a valley 15 between the two banks B1 and B2.
  • First and second throttle bodies T1 and T2 whose intake passages 17 and 17 communicate with the upstream ends of the intake ports 8 and 8 are attached to the first and second banks B1 and B2 with cylinder-shaped insulators 16 and 16 interposed in between, respectively.
  • the first and second throttle bodies T1 and T2 are arranged symmetrically over the valley 15.
  • the first and second throttle bodies T1 and T2 have the same structure. Therefore, taking the first throttle body T1 as a representative of these, descriptions will be provided referring to FIGS. 2 to 4 .
  • the first throttle body T1 is simply referred to as a "throttle body T1.”
  • the intake passage 17 of the throttle body T1 which communicates with the intake port 8 has a transverse cross-section formed of an oblong circle.
  • the oblong circle has a long diameter L extending in a direction in which the paired branched paths 8a and 8a of the intake port 8 are arranged, and a short diameter S extending orthogonal to the long diameter L.
  • the oblong circle shown in the drawings is formed of a combination of paired short arcs 20 and 20 and paired long arcs 21 and 21.
  • the paired short arcs 20 and 20 extend along the short diameter S, and are opposed to each other.
  • the paired long arcs 21 and 21 extend along the long diameter L, are opposed to each other, and are longer than the paired short arcs 20 and 20.
  • Each corner portion is curved at which one of the short arcs 20 and the corresponding one of the long arcs 22 cross.
  • a valve shaft 23 is rotatably supported by the throttle body T1.
  • the valve shaft 23 penetrates a longitudinal middle portion of the throttle body T1 along the long diameter L.
  • a butterfly-type throttle valve 24 which opens and closes the intake passage 17 according to rotation of the valve shaft 23 is fixedly attached to the valve shaft 23.
  • This throttle valve 24 has an oblong-circle contour which matches the transverse cross-section of the intake passage 17 so as to come into close contact with the inner peripheral surface of the intake passage 17 when the throttle valve 24 is at the closing position.
  • Paired attachment bosses 25 and 25 are integrally formed in a side surface, extending along the long diameter L, of the throttle body T1, particularly in the side surface closer to the middle of the valley 15.
  • the paired attachment bosses 25 and 25 are arranged along the long diameter L, in other words, in a direction in which the branched paths 8a and 8a are arranged.
  • Paired electromagnetic fuel injection valves 28 and 28 are fitted into the respective attachment bosses 25 and 25 with seal members 32 being interposed in between, respectively.
  • a fuel joint 34 for enabling fuel to be supplied to these fuel injection valves 28 and 28 is fitted to the outer end portions of the fuel injection valves 28 and 28, respectively.
  • the fuel joint 34 includes a supporting arm 34a.
  • the fuel joint 34 is fixed to the throttle body T1, and concurrently holds the paired fuel injection valves 28 and 28.
  • the attachment bosses 26 are formed in the side surface of the throttle body T1.
  • Each fuel injection valve 28 includes a power supply coupler 28a which projects in a lateral direction.
  • Positioning forks 34b are formed in the fuel joint 34. Each positioning fork 34b pinches the root of the corresponding coupler 28a to prevent the corresponding fuel injection valve 28 from rotating.
  • the paired fuel injection valves 28 and 28 are arranged in a way that conic spray forms 29 and 29 formed by fuel injected from the fuel injection valves 28 and 28 are directed to the branched paths 8a and 8a, respectively.
  • the first and second throttle bodies T1 and T2 mounted on the first and second banks B1 and B2 over the valley 15 between the first and second banks B 1 and B2 are arranged in a way that the short diameters S of the intake passages 17 are directed in a direction in which the first and second banks B1 and B2 are arranged, respectively.
  • a fuel distributing block 36 to which the fuel is supplied from a fuel pump (not illustrated) through a fuel supplying pipe 37 is connected to the fuel joints 34 and 34 of the first and second throttle bodies T1 and T2, respectively.
  • the transverse cross-section of the intake passage 17 of each of the first and second throttle bodies T 1 and T2 is formed of an oblong circle having a long diameter L extending in the direction in which the branched paths 8a and 8a of the intake port 8 are arranged, and a short diameter S extending orthogonal to the long diameter L. This secures a large flow passage area for the intake passage 17.
  • any one of the sidewalls extending along the long diameter L of each of the throttle bodies T1 and T2 can have an attachment space wider than the sidewall of a throttle body which has a perfect circle cross-sectional shape and the same flow passage area.
  • the paired fuel injection valves 28 and 28 arranged along the long diameter L are attached to one of the sidewalls. This enables the free arrangement of the two fuel injection valves 28 and 28, so that the two fuel injection valves 28 and 28 can be arranged corresponding to the interval between the branched paths 8a and 8a. Accordingly, it is possible to direct the conic spray forms 29 and 29, formed by fuel injected from the two respective fuel injection valves 28 and 28, to the respective branched paths 8a and 8a appropriately. This causes the injected fuel to attach to the inner surface of the intake port 8 as little as possible, thereby leading to contributions to reduction in fuel consumption and exhaust emission.
  • each of the intake passage 17 and the throttle valve 24 which extends along the short diameter S is formed by the short arcs 20. Therefore, when the throttle valve 24 is opened from its closed position even slightly, a space is formed between the end surfaces of the throttle valve 24 extending along a direction of the short diameter S and inner surfaces of the intake passage 17, which oppose to the end surfaces. This prevents friction between the end surfaces of the throttle valve 24 and the inner surfaces of the intake passage 17, and accordingly allows smooth opening and closing of the throttle valve 24.
  • first and second throttle bodies T1 and T2 are arranged over the valley 15 between the first and second banks B1 and B2 of the V-type engine E in a way that the short diameters S of their respective intake passages 17 are directed in the direction in which the first and second banks B1 and B2 are arranged. Accordingly, the first and second throttle bodies T1 and T2 are arranged in a flat form in the direction as the two banks B1 and B2 are arranged. Accordingly, the first and second throttle bodies T1 and T2 can be easily arranged over the narrow valley 15 without interfering with each other.
  • FIG. 5 Next, a second embodiment of the present invention shown in FIG. 5 will be described.
  • the engine arrangement according to the second embodiment is the same as the engine arrangement according to the above-described embodiment except for the following point.
  • the transverse cross-section having an oblong circle of an intake passage 17 of each of first and second throttle bodies T1 and T2 is formed of a combination of paired opposed short arcs 20, extending along a direction of a short diameter S, and paired opposed straight lines 21' and 21' which are longer than the short arcs 20 and 20, and which extend along a direction of a long diameter L.
  • parts corresponding to those of the previous embodiment will be denoted by the same reference numerals. Thereby, overlapped descriptions will be omitted.
  • the second embodiment is capable of bringing about the same operation effect as the previous embodiment has.
  • the present invention is not limited to the above-mentioned embodiments and may be modified in a variety of ways as long as the modifications do not depart from the gist of the present invention as described in the claims.
  • the paired fuel injection valves 28 and 28 in each of the throttle bodies T1 and T2 can be arranged in parallel as shown in the illustrated examples, or in such a way as to tilt to each other, depending on the arrangement and/or shapes of the paired branched paths 8a and 8a at discretion.
  • an intake passage (17) is formed to have a transverse cross-section thereof in an oblong circle having a long diameter (L) extending in a direction in which paired branched paths (8a, 8a), which are formed in downstream portions of an intake port (8) of an engine (E), are arranged, and a short diameter (S) extending orthogonal to the long diameter (L); and paired fuel injection valves (28, 28) are attached to a sidewall, extending along the long diameter (L), of the throttle body (T1, T2) so as to be arranged along the long diameter (L), and to be allowed to inject fuel toward the paired branched paths (8a, 8a), respectively. Accordingly it is possible to secure a wide attachment space in the sidewall of the throttle body, to easily attach the paired parallel fuel injection valves thereto, and cause the fuel injection valves to inject fuel in adequate directions to the respective paired intake passages.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (2)

  1. Agencement de moteur à combustion interne comprenant :
    un moteur à combustion interne de type en V (E) avec un premier bloc (B1) et un deuxième bloc (B2) agencés en forme de V,
    chaque bloc (B1, B2) comprenant une chambre de combustion (7) et un orifice d'admission (8) ayant un côté aval formé en une paire de trajets divisés (8a, 8a), la paire de trajets divisés (8a, 8a) s'ouvrant vers la chambre de combustion (7) ;
    l'agencement de moteur à combustion interne comprenant en outre des premier et deuxième agencements de corps de papillon associés au premier bloc (B1) et au deuxième bloc (B2), respectivement,
    chaque agencement de corps de papillon comprenant :
    un corps de papillon (T1, T2) comportant un passage d'admission (17) communiquant avec une extrémité amont de l'orifice d'admission (8) du bloc (B1, B2) associé ;
    le passage d'admission (17) comportant une section transversale sous la forme d'un cercle oblong ayant un diamètre long (L) et un diamètre court (S) s'étendant orthogonalement au diamètre long (L) ;
    dans lequel le corps de papillon (T1, T2) est attaché au moteur à combustion interne (E) de sorte que le diamètre long (L) s'étende dans une direction dans laquelle la paire de trajets divisés (8a, 8a) de l'orifice d'admission (8) du bloc (B1, B2) associé sont agencés ;
    un papillon des gaz (24) supporté de manière pivotante par le corps de papillon (T1, T2), le papillon des gaz (24) étant conçu pour ouvrir et fermer le passage d'admission (17) ;
    le papillon des gaz (24) ayant le même contour que le cercle oblong et étant attaché à une tige de papillon (23) pénétrant dans le corps de papillon (T1, T2) le long du diamètre long (L) ;
    un agencement de soupapes d'injection de carburant (28, 28) conçu pour injecter du carburant vers la paire de trajets divisés (8a, 8a) de l'orifice d'admission (8) du bloc (B1, B2) associé à partir d'un côté aval du papillon des gaz (24),
    caractérisé en ce que l'agencement de soupapes d'injection de carburant (28, 28) est formé par une paire de soupapes d'injection de carburant (28, 28) assemblées dans des bossages de fixation (25, 25) appariés respectifs, chaque bossage de fixation (25) étant formé d'un seul tenant dans une paroi latérale du corps de papillon (T1, T2) qui s'étend le long d'une direction du diamètre long (L) et la paire de soupapes d'injection de carburant (28, 28) étant agencées dans la direction du diamètre long (L),
    dans lequel les corps de papillon (T1, T2) des premier et deuxième agencements de corps de papillon sont respectivement attachés à des parois latérales des premier et deuxième blocs (B1, B2), les parois latérales faisant face à un creux (15) entre les deux blocs (B1, B2),
    dans lequel les corps de papillon (B1, B2) sont agencés de sorte que les diamètres courts (S) des sections des passages d'admission (17) soient contenus dans un plan perpendiculaire à un vilebrequin (1) du moteur à combustion interne (E), ledit plan s'étendant entre le premier bloc (B1) et le deuxième bloc (B2) ;
    et dans lequel les parois latérales des corps de papillon (T1, T2) dans lesquelles les bossages de fixation (25, 25) appariés sont formés d'un seul tenant sont les parois latérales des corps de papillon (T1, T2) s'étendant dans la direction du diamètre long (L) qui sont plus près du milieu du creux (15).
  2. Agencement de moteur à combustion interne selon la revendication 1,
    dans lequel le cercle oblong est formé en combinant des arcs courts (20, 20) opposés appariés avec des arcs longs (21, 21) opposés appariés ou avec des droites (21', 21') opposées appariées, les arcs courts (20, 20) appariés s'étendant dans une direction du diamètre court (S), les arcs longs (21, 21) ou les droites (21', 21') appariés étant plus longs que les arcs courts (20, 20) et s'étendant dans une direction du diamètre long (L).
EP09171587.0A 2008-09-30 2009-09-29 Corps de papillon doté d'une soupape d'injection de carburant Not-in-force EP2169211B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008254841A JP2010084633A (ja) 2008-09-30 2008-09-30 燃料噴射弁付きスロットルボディ

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Publication Number Publication Date
EP2169211A1 EP2169211A1 (fr) 2010-03-31
EP2169211B1 true EP2169211B1 (fr) 2016-02-10

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JP5802592B2 (ja) * 2012-03-29 2015-10-28 株式会社クボタ 火花点火式エンジン
JP5893989B2 (ja) * 2012-03-29 2016-03-23 株式会社クボタ 火花点火式エンジン
JP6395259B2 (ja) * 2014-10-14 2018-09-26 ダイハツ工業株式会社 内燃機関のインジェクタユニット
CN105443290A (zh) * 2015-12-30 2016-03-30 无锡开普机械有限公司 一种用于电喷数码发电机组的喷油器组件
BR112022015806A2 (pt) * 2020-03-11 2022-10-11 Honda Motor Co Ltd Dispositivo de admissão de motor de combustão interna para veículo do tipo para conduzir montado em selim
CN216811991U (zh) * 2022-01-14 2022-06-24 上海峰飞航空科技有限公司 发动机和飞行器及其节气门

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DE69217092T2 (de) * 1991-02-22 1997-05-15 Yamaha Motor Co Ltd Einlassystem für Brennkraftmaschine mit mehreren Ventilen
JP2591384B2 (ja) * 1991-10-07 1997-03-19 三菱自動車工業株式会社 エンジンの吸気系構造
JP3107489B2 (ja) * 1993-11-08 2000-11-06 株式会社日立製作所 内燃機関の混合気形成装置
JPH0914104A (ja) * 1995-06-26 1997-01-14 Yamaha Motor Co Ltd 内燃機関の燃料供給装置
JP3724184B2 (ja) 1998-04-15 2005-12-07 スズキ株式会社 燃料噴射装置

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