WO2014148218A1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

Info

Publication number
WO2014148218A1
WO2014148218A1 PCT/JP2014/054799 JP2014054799W WO2014148218A1 WO 2014148218 A1 WO2014148218 A1 WO 2014148218A1 JP 2014054799 W JP2014054799 W JP 2014054799W WO 2014148218 A1 WO2014148218 A1 WO 2014148218A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
swirl
valve
chamber
radius
Prior art date
Application number
PCT/JP2014/054799
Other languages
English (en)
Japanese (ja)
Inventor
洋史 大野
小林　信章
貴博 齋藤
敦士 中井
岡本　良雄
Original Assignee
日立オートモティブシステムズ株式会社
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 日立オートモティブシステムズ株式会社 filed Critical 日立オートモティブシステムズ株式会社
Priority to DE112014000267.4T priority Critical patent/DE112014000267B4/de
Priority to CN201480001654.4A priority patent/CN105190019B/zh
Publication of WO2014148218A1 publication Critical patent/WO2014148218A1/fr

Links

Images

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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size

Definitions

  • the present invention relates to a fuel injection valve used for fuel injection of an engine.
  • Patent Document 1 discloses a fuel injection valve having a swirl chamber in which the corners of the bottom of the swirl chamber are formed in an edge shape.
  • the fuel passing through the passage connecting the central chamber and the swirl chamber has a reduced flow velocity near the side and bottom of the passage.
  • an edge is formed between the side surface portion and the bottom portion of the passage, and the area of the side surface portion and the bottom portion is large. For this reason, the flow rate of the fuel in the passage becomes non-uniform, and there is a possibility that the atomization of the fuel after injection is hindered.
  • the present invention has been made paying attention to the above problems, and an object of the present invention is to provide a fuel injection valve that can equalize the flow rate of fuel in a passage and promote atomization of fuel after injection. It is to be.
  • the cross-sectional shape of the corner portion between the side surface portion and the bottom portion of the communication passage is a curved surface shape, and the swirl application chamber swells when the swirl application chamber is viewed from the axial direction.
  • the side surface portion of the communication passage is the first side surface portion
  • the side surface portion of the communication passage opposite to the side where the swirl application chamber bulges is the second side surface portion
  • the cross-sectional shape between the first side surface portion and the bottom portion is The communication path was formed so that the radius r1 was larger than the radius r2 when the radius was r1 and the radius of the cross-sectional shape between the second side surface portion and the bottom portion was r2.
  • the fuel flow rate in the passage can be made uniform, and atomization of the fuel after injection can be promoted.
  • FIG. 2 is a perspective view of a nozzle plate of Example 1.
  • FIG. 2 is a plan view and a cross-sectional view of a nozzle plate of Example 1.
  • FIG. It is a schematic cross section of the communicating path of Example 1, and a swirl grant chamber. It is the figure which described the flow of the fuel in the perspective view of the swirl chamber and fuel injection hole of Example 1.
  • FIG. 6 is a simulation result of the flow velocity of fuel in the communication path of the first embodiment. It is a schematic diagram of the flow of the fuel in the communicating path of Example 1, and the flow of the fuel in a swirl provision chamber. It is a simulation result of the flow of the fuel in the communicating path of Example 1, and the flow of the fuel in a swirl provision chamber. It is a perspective view of the nozzle plate of another Example. It is a perspective view of the nozzle plate of another Example.
  • FIG. 1 is an axial sectional view of the fuel injection valve 1.
  • the fuel injection valve 1 is a so-called low-pressure fuel injection valve that is used in an automobile gasoline engine and injects fuel into an intake manifold.
  • the fuel injection valve 1 includes a magnetic cylinder 2, a core cylinder 3 accommodated in the magnetic cylinder 2, a valve element 4 slidable in the axial direction, and a valve shaft formed integrally with the valve element 4.
  • valve seat member 7 having a valve seat 6 that is closed by the valve body 4 when the valve is closed, a nozzle plate 8 having a fuel injection hole through which fuel is injected when the valve is opened, and the valve body 4 is opened when energized. It has an electromagnetic coil 9 that slides in the direction and a yoke 10 that induces magnetic flux lines.
  • the magnetic cylinder 2 is made of a metal pipe made of a magnetic metal material such as electromagnetic stainless steel, for example, and is stepped as shown in FIG. 1 by using means such as deep drawing or pressing or grinding. It is integrally formed in a cylindrical shape.
  • the magnetic cylinder 2 has a large-diameter portion 11 formed on one end side and a small-diameter portion 12 having a smaller diameter than the large-diameter portion 11 and formed on the other end side.
  • the small diameter portion 12 is formed with a thin portion 13 that is partially thinned.
  • the small-diameter portion 12 includes a core tube housing portion 14 that houses the core tube body 3 on one end side from the thin portion 13, and a valve member 15 (valve body 4, valve shaft 5, valve seat member on the other end side from the thin portion 13. 7) and is divided into a valve member accommodating portion 16 for accommodating.
  • the thin portion 13 is formed so as to surround a gap portion between the core cylinder 3 and the valve shaft 5 in a state where the core cylinder 3 and the valve shaft 5 described later are accommodated in the magnetic cylinder 2.
  • the thin wall portion 13 increases the magnetic resistance between the core tube housing portion 14 and the valve member housing portion 16 and magnetically blocks between the core tube housing portion 14 and the valve member housing portion 16.
  • the inner diameter of the large diameter portion 11 constitutes a fuel passage 17 for sending fuel to the valve member 15, and a fuel filter 18 for filtering the fuel is provided at one end of the large diameter portion 11.
  • a pump 47 is connected to the fuel passage 17.
  • the pump 47 is controlled by a pump control device 54.
  • the core cylinder 3 is formed in a cylindrical shape having a hollow portion 19 and is press-fitted into the core cylinder housing portion 14 of the magnetic cylinder 2.
  • the hollow portion 19 accommodates a spring receiver 20 fixed by means such as press fitting.
  • a fuel passage 43 penetrating in the axial direction is formed at the center of the spring receiver 20.
  • the outer shape of the valve body 4 is formed in a substantially spherical shape, and has a fuel passage surface 21 cut in parallel with the axial direction of the fuel injection valve 1 on the circumference.
  • the valve shaft 5 has a large-diameter portion 22 and a small-diameter portion 23 whose outer shape is smaller than the large-diameter portion 22.
  • the valve body 4 is integrally fixed to the tip of the small diameter portion 23 by welding.
  • the black semicircle and black triangle in a figure have shown the welding location.
  • a spring insertion hole 24 is formed at the end of the large diameter portion 22.
  • a spring seat 25 having a smaller diameter than the spring insertion hole 24 is formed at the bottom of the spring insertion hole 24, and a stepped spring receiving portion 26 is formed.
  • a fuel passage hole 27 is formed at the end of the small diameter portion 23. The fuel passage hole 27 communicates with the spring insertion hole 24.
  • a fuel outflow hole 28 penetrating the outer periphery of the small diameter portion 23 and the fuel passage hole 27 is formed.
  • the valve seat member 7 includes a substantially conical valve seat 6, a valve body holding hole 30 formed on the one end side of the valve seat 6 so as to be substantially the same as the diameter of the valve body 4, and one end opening side from the valve body holding hole 30.
  • An upstream opening 31 formed with a larger diameter and a downstream opening 48 opened to the other end side of the valve seat 6 are formed.
  • valve shaft 5 and the valve body 4 are accommodated in the magnetic cylinder 2 so as to be slidable in the axial direction.
  • a coil spring 29 is provided between the spring receiver 26 and the spring receiver 20 of the valve shaft 5 to urge the valve shaft 5 and the valve body 4 to the other end side.
  • the valve seat member 7 is inserted into the magnetic cylinder 2 and fixed to the magnetic cylinder 2 by welding.
  • the valve seat 6 is formed so that the diameter decreases from the valve body holding hole 30 toward the downstream opening 48 at an angle of about 45 °, and the valve body 4 is seated on the valve seat 6 when the valve is closed.
  • An electromagnetic coil 9 is inserted into the outer periphery of the core cylinder 3 of the magnetic cylinder 2.
  • the electromagnetic coil 9 is disposed on the outer periphery of the core cylinder 3.
  • the electromagnetic coil 9 includes a bobbin 32 formed of a resin material and a coil 33 wound around the bobbin 32.
  • the coil 33 is connected to the electromagnetic coil control device 55 via the connector pin 34.
  • the electromagnetic coil control device 55 energizes the coil 33 of the electromagnetic coil 9 in accordance with the timing of injecting fuel into the combustion chamber calculated based on the information from the crank angle sensor that detects the crank angle. Open the valve.
  • the yoke 10 has a hollow through hole, and has a large diameter portion 35 formed on one end opening side, a medium diameter portion 36 formed smaller than the large diameter portion 35, and a diameter smaller than the medium diameter portion 36. It is comprised from the small diameter part 37 formed in the end opening side. The small diameter portion 37 is fitted to the outer periphery of the valve member housing portion 16. An electromagnetic coil 9 is accommodated on the inner periphery of the medium diameter portion 36.
  • a connecting core 38 is disposed on the inner periphery of the large diameter portion 35.
  • the connecting core 38 is formed in a substantially C shape by a magnetic metal material or the like.
  • the yoke 10 is connected to the magnetic cylinder 2 at the large diameter portion 35 via the small diameter portion 37 and the connecting core 38, that is, magnetically connected to the magnetic cylinder 2 at both ends of the electromagnetic coil 9. It becomes.
  • a protector 52 for holding the O-ring 40 for connecting the fuel injection valve 1 to the intake port of the engine and protecting the tip of the magnetic cylinder is attached to the tip of the yoke 10 on the other end side.
  • the front end portion of the connector pin 34 is formed by opening a resin cover 53 so that the connector of the control unit can be inserted.
  • An O-ring 39 is provided on the outer periphery of one end portion of the magnetic cylinder 2, and an O-ring 40 is provided on the outer periphery of the small diameter portion 37 of the yoke 10.
  • a nozzle plate 8 is welded to the other end side of the valve seat member 7.
  • the nozzle plate 8 is injected with a plurality of swirl chambers 41 that give a swirl (swirl flow) to the fuel, a central chamber 42 that distributes the fuel to each swirl chamber 41, and fuel that has been swirled in the swirl chamber 41.
  • a fuel injection hole 44 is formed.
  • FIG. 2 is an enlarged cross-sectional view of the vicinity of the nozzle plate 8 of the fuel injection valve 1.
  • FIG. 3 is a perspective view of the nozzle plate 8.
  • FIG. 4 is a view (FIG. 4A) of the nozzle plate viewed from one end side in the axial direction (the side in contact with the valve seat member 7), and a cross-sectional view taken along the line AA (FIG. 4B).
  • 1 is a cross-sectional view taken along a line BB in FIG. 4A.
  • a swirl chamber 41 is formed on one side surface of the nozzle plate 8.
  • Four swirl chambers 41 are formed, each including a communication path 45 and a swirl application chamber 46. Each communication path 45 is connected near the center of the nozzle plate 8.
  • the communication path 45 is formed by a groove extending radially from the vicinity of the center of the nozzle plate 8. That is, the communication path 45 has a bottom portion 45a serving as the bottom of the groove, and side surface portions 45b and 45c standing on the bottom portion 45a.
  • a swirl application chamber 46 is formed at the tip of the communication passage 45.
  • the swirl imparting chamber 46 is formed in a bottomed concave shape. That is, the swirl imparting chamber 46 has a bottom portion 46a serving as a bottom and a side surface portion 46b standing on the bottom portion 46a.
  • a fuel injection hole 44 penetrating the other end side of the nozzle plate 8 is formed in the bottom 46 a of the swirl application chamber 46.
  • the side surface portion 46 b of the swirl application chamber 46 is formed in a spiral shape when viewed from one end side of the nozzle plate 8.
  • the side surface portion of the communication passage 45 on the side where the swirl imparting chamber 46 swells is the first side surface portion 45b, and the communication passage on the side opposite to the side on which the swirl imparting chamber 46 swells.
  • the side surface portion 45 is referred to as a second side surface portion 45c.
  • the second side surface portion 45 c is connected to the side surface portion 46 b of the swirl application chamber 46 in the tangential direction.
  • the axial direction of the nozzle plate 8 is between the bottom portion 45a and the first side surface portion 45b of the communication passage 45, between the bottom portion 45a and the second side surface portion 45c, and between the swirl application chamber 46, the bottom portion 46a and the side surface portion 46b. Is formed in an R shape (curved shape) in a cross section parallel to the shape.
  • FIG. 5 is a schematic cross-sectional view of the communication path 45.
  • the radius of the cross-sectional shape between the bottom 46 and the first side surface 45b is r1
  • the radius of the cross-sectional shape between the bottom 46 and the second side surface 45c is r2.
  • the radius r1 is formed to be larger than the radius r2.
  • the radius of the cross-sectional shape between the bottom portion 46a and the side surface portion 46b of the swirl application chamber 46 is formed to be r2.
  • the nozzle plate 8 is formed by cutting, pressing, etching, or the like, and the swirl chamber 41 and the fuel injection hole 44 are integrally formed on a single plate.
  • FIG. 6 is a perspective view of the swirl chamber 41 and the fuel injection hole 44 in which the fuel flow is described.
  • the space between the valve body 4 and the valve seat 6 is released, and fuel is supplied to the nozzle plate 8 side.
  • the fuel supplied to the nozzle plate 8 first enters the central chamber 42, collides with the bottom of the central chamber 42, thereby converting the axial flow into the radial flow and flows into each communication passage 45. Since the communication passage 45 is connected in the tangential direction of the swirl application chamber 46, the fuel that has passed through the communication passage 45 swirls along the inner surface of the swirl application chamber 46.
  • a swirl force (swirl force) is applied to the fuel in the swirl imparting chamber 46, and the fuel having the swirl force is injected while swirling along the side wall portion of the fuel injection hole 44.
  • the fuel injected from the fuel injection hole 44 is scattered in the tangential direction of the fuel injection hole 44.
  • the fuel spray immediately after being injected from the fuel injection hole 44 is in a liquid film state in which the fuel forms a film on the substantially hollow conical spray surface by the edge portion of the opening of the fuel injection hole 44.
  • the fuel spray that has been in the form of a film gradually starts to split and enters a liquid yarn state. Further, the splitting further proceeds, and the fuel is in a droplet state split into particles.
  • FIG. 7 shows a simulation result of the flow rate of the fuel in the communication path 45.
  • FIG. 7A shows the result when the cross-sectional shape between the bottom portion and the side surface portion is an R shape
  • FIG. 7B shows the result when the cross-sectional shape between the bottom portion and the side surface portion is an edge shape.
  • the cross-sectional shape between the bottom portion and the side surface portion of the communication path 45 is an R shape, so that a region where the flow velocity is fast is widened and the flow in the communication path 45 is smooth. I understand. This is because, when the cross-sectional shape is R-shaped compared to the edge-shaped, the area where the fuel contacts the bottom or side surface can be reduced, and the pressure resistance is reduced.
  • FIG. 8 is a schematic diagram of the fuel flow in the communication passage 45 and the fuel flow in the swirl application chamber 46.
  • FIG. 8A shows the fuel flow when the radius r1 on the first side face 45b side of the communication path 45 is larger than the radius r2 on the second side face 45c side of the communication path 45, and FIG.
  • the flow of fuel when the radius r1 on the first side face 45b side of the passage 45 and the radius r2 on the second side face 45c side of the communication passage 45 are equalized is shown.
  • the main flow of the fuel is to flow away from the first side face 45b by increasing the radius on the first side face 45b side. Thereby, the position where the fuel flowing into the swirl application chamber 46 from the communication hole 45 interferes with the swirl flow in the swirl application chamber 46 can be increased (distance L1> distance L2).
  • the flow of fuel to the application chamber 46 can be made smooth.
  • FIG. 9 is a simulation result of the fuel flow in the communication passage 45 and the fuel flow in the swirl application chamber 46.
  • 9A shows a result when the radius r1 on the first side face 45b side of the communication path 45 is made larger than the radius r2 on the second side face 45c side of the communication path 45.
  • FIG. The result of what made the radius r1 of the 1st side surface part 45b side and the radius r2 of the 2nd side surface part 45c side of the communicating path 45 equal is shown.
  • FIG. 9A it can be seen that a region having a high flow velocity spreads from the communication path 45 to the swirl application chamber 46 as compared with FIG. 9B. By moving away the position where the fuel flowing into the swirl application chamber 46 from the communication hole 45 interferes, the flow of fuel from the communication path 45 to the swirl application chamber 46 can be made smooth.
  • the dead volume refers to a volume in which fuel remains in the downstream opening 48, the swirl chamber 41, and the fuel injection hole 44 when the fuel injection valve 1 is closed.
  • the inside of the intake manifold into which the fuel injection valve 1 injects fuel becomes negative pressure, the remaining fuel boils under reduced pressure, causing the flow rate to vary with respect to the target fuel flow rate.
  • there is generally no negative volume effect because there is no negative pressure inside the cylinder.
  • the fluid generally has the highest flow velocity near the center of the flow path, and the flow speed is slower as it is closer to the wall of the flow path.
  • the corner between the bottom 45a of the communication passage 45 and the side portions 45b and 45c and the corner between the bottom 46a and the side portion 46b of the swirl application chamber 46 are formed in an edge shape, the corner is formed on the wall.
  • the flow rate of the fuel is particularly slow because it is surrounded. That is, the fuel flowing in the vicinity of the corner portion has been a cause of an increase in dead volume, although the contribution to the promotion of fuel miniaturization is small.
  • the cross-sectional shape between the bottom portion 45a of the communication passage 45 and the side surface portions 45b and 45c and between the bottom portion 46a and the side surface portion 46b of the swirl application chamber 46 is formed into an R shape, thereby
  • the volume of the portion where the fuel with a small contribution to the miniaturization promotion is accumulated can be cut, and the dead volume can be reduced without affecting the fuel miniaturization.
  • a valve body 4 provided so as to be capable of opening and closing, a valve seat 6 on which the valve body 4 sits when the valve is closed, a valve seat member 7 having a downstream opening 48 on the downstream side, and downstream of the valve seat member 7
  • a nozzle plate 8 provided on the valve seat member 7 side of the nozzle plate 8, a swirl imparting chamber 46 that swirls fuel inside to impart a swirling force, and a bottom portion of the swirl imparting chamber 46.
  • a fuel injection hole 44 penetrating to the outside and a communication passage 45 formed in a concave shape on the valve seat member 7 side of the nozzle plate 8 and communicating the swirl application chamber 46 and the downstream opening 48 of the valve seat member 7.
  • the cross-sectional shape of the corner between the bottom 45a and the side surfaces 45b and 45c of the communication passage 45 is a curved surface, and the communication passage on the side where the swirl application chamber 46 swells when the swirl application chamber 46 is viewed from the axial direction.
  • the side surface portion 45 is a first side surface portion 45b, the side surface portion of the communication passage 45 opposite to the side on which the swirl application chamber 46 bulges is a second side surface portion 45c, and between the bottom portion 45a and the first side surface portion 45b.
  • the communication path 45 is formed so that the radius r1 is larger than the radius r2, where r1 is the radius of the cross-sectional shape and r2 is the radius of the cross-sectional shape between the bottom portion 45a and the second side surface portion 45c. Therefore, a region where the flow velocity is high in the communication path 45 is widened, and the flow in the communication path 45 can be made smooth. Further, the fuel flows in a position away from the first side surface portion 45b, and the position where the fuel flowing into the swirl application chamber 46 from the communication path 45 interferes with the swirling flow in the swirl application chamber 46 may be increased. The flow of fuel from the communication passage 45 to the swirl application chamber 46 can be made smooth.
  • FIG. 10 is a perspective view of the nozzle plate 8.
  • two swirl chambers 41 may be formed as shown in FIG.
  • FIG. 11 is a view showing the nozzle plate 8.
  • six swirl chambers 41 may be formed as shown in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Selon la présente invention, la forme en coupe transversale d'une partie angle entre une partie de surface latérale et une partie inférieure d'un passage de communication est une forme arrondie ; lorsqu'une chambre de création de tourbillons est vue depuis une direction axiale, la partie de surface latérale du passage de communication sur un côté où la chambre de création de tourbillons fait saillie, est une première partie de surface latérale et la partie de surface latérale du passage de communication sur le côté opposé duquel fait saillie la chambre de création de tourbillons, est une seconde partie de surface latérale ; et le passage de communication est formé de telle sorte qu'un rayon (r1) soit plus grand qu'un rayon (r2), le rayon (r1) étant le rayon de la forme en coupe transversale entre la première partie de surface latérale et la partie inférieure et le rayon (r2) étant le rayon de la forme en coupe transversale entre la seconde partie de surface latérale et la partie inférieure.
PCT/JP2014/054799 2013-03-19 2014-02-27 Soupape d'injection de carburant WO2014148218A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112014000267.4T DE112014000267B4 (de) 2013-03-19 2014-02-27 Brennstoffeinspritzventil
CN201480001654.4A CN105190019B (zh) 2013-03-19 2014-02-27 燃料喷射阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-056740 2013-03-19
JP2013056740A JP5980706B2 (ja) 2013-03-19 2013-03-19 燃料噴射弁

Publications (1)

Publication Number Publication Date
WO2014148218A1 true WO2014148218A1 (fr) 2014-09-25

Family

ID=51579909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/054799 WO2014148218A1 (fr) 2013-03-19 2014-02-27 Soupape d'injection de carburant

Country Status (4)

Country Link
JP (1) JP5980706B2 (fr)
CN (1) CN105190019B (fr)
DE (1) DE112014000267B4 (fr)
WO (1) WO2014148218A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6448814B2 (ja) * 2015-10-05 2019-01-09 三菱電機株式会社 燃料噴射弁
JP6716063B2 (ja) * 2016-12-22 2020-07-01 株式会社ケーヒン 電磁式燃料噴射弁
CN111279066B (zh) * 2017-11-01 2022-03-01 三菱电机株式会社 燃料喷射阀

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003336561A (ja) * 2002-05-17 2003-11-28 Keihin Corp 燃料噴射弁
JP2004510915A (ja) * 2000-10-04 2004-04-08 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 燃料噴射弁
JP2012193713A (ja) * 2011-03-17 2012-10-11 Hitachi Automotive Systems Ltd 燃料噴射弁

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5435884A (en) * 1993-09-30 1995-07-25 Parker-Hannifin Corporation Spray nozzle and method of manufacturing same
US6783085B2 (en) * 2002-01-31 2004-08-31 Visteon Global Technologies, Inc. Fuel injector swirl nozzle assembly
JP5277264B2 (ja) * 2011-01-27 2013-08-28 日立オートモティブシステムズ株式会社 燃料噴射弁
JP5537512B2 (ja) * 2011-07-25 2014-07-02 日立オートモティブシステムズ株式会社 燃料噴射弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004510915A (ja) * 2000-10-04 2004-04-08 ローベルト　ボツシユ　ゲゼルシヤフト　ミツト　ベシユレンクテル　ハフツング 燃料噴射弁
JP2003336561A (ja) * 2002-05-17 2003-11-28 Keihin Corp 燃料噴射弁
JP2012193713A (ja) * 2011-03-17 2012-10-11 Hitachi Automotive Systems Ltd 燃料噴射弁

Also Published As

Publication number Publication date
DE112014000267B4 (de) 2018-02-01
JP2014181610A (ja) 2014-09-29
CN105190019A (zh) 2015-12-23
JP5980706B2 (ja) 2016-08-31
CN105190019B (zh) 2017-11-21
DE112014000267T5 (de) 2015-10-15

Similar Documents

Publication Publication Date Title
JP5200047B2 (ja) 燃料噴射弁
JP5852463B2 (ja) 燃料噴射弁
JP5492123B2 (ja) 燃料噴射弁
JP5253480B2 (ja) 燃料噴射弁
JP2012215135A (ja) 燃料噴射弁
JP5877768B2 (ja) 燃料噴射弁
JP2013194624A (ja) 燃料噴射弁
JP5336451B2 (ja) 燃料噴射弁
US20200400112A1 (en) Fuel Injection Valve
JP2013185522A (ja) 燃料噴射弁
WO2014148218A1 (fr) Soupape d'injection de carburant
JP2012211532A (ja) 燃料噴射弁
JP5341045B2 (ja) 燃料噴射弁
JP2013194725A (ja) 燃料噴射弁
JP5341046B2 (ja) 燃料噴射弁
JP5492131B2 (ja) 燃料噴射弁
WO2014050266A1 (fr) Soupape d'injection de carburant
JP2014181611A (ja) 燃料噴射弁
JP4129688B2 (ja) 流体噴射弁
JP2014173515A (ja) 燃料噴射弁
JP5492133B2 (ja) 燃料噴射弁
JP5579888B2 (ja) 燃料噴射弁
JP2014066186A (ja) 燃料噴射弁
JP5955181B2 (ja) 燃料噴射弁
JP5818856B2 (ja) 燃料噴射弁

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201480001654.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14770217

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1120140002674

Country of ref document: DE

Ref document number: 112014000267

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: IDP00201505493

Country of ref document: ID

122 Ep: pct application non-entry in european phase

Ref document number: 14770217

Country of ref document: EP

Kind code of ref document: A1