WO2018087849A1 - Soupape d'injection de carburant - Google Patents

Soupape d'injection de carburant Download PDF

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Publication number
WO2018087849A1
WO2018087849A1 PCT/JP2016/083254 JP2016083254W WO2018087849A1 WO 2018087849 A1 WO2018087849 A1 WO 2018087849A1 JP 2016083254 W JP2016083254 W JP 2016083254W WO 2018087849 A1 WO2018087849 A1 WO 2018087849A1
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WO
WIPO (PCT)
Prior art keywords
seat
fuel
valve
nozzle hole
ball
Prior art date
Application number
PCT/JP2016/083254
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English (en)
Japanese (ja)
Inventor
範久 福冨
恭輔 渡邉
宗実　毅
学 平井
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/083254 priority Critical patent/WO2018087849A1/fr
Priority to CN201680090515.2A priority patent/CN109891083B/zh
Priority to JP2018549683A priority patent/JP6692451B2/ja
Publication of WO2018087849A1 publication Critical patent/WO2018087849A1/fr

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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
    • 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

Definitions

  • This invention relates to a fuel injection valve for supplying fuel to, for example, an internal combustion engine.
  • the valve body is disposed displaceably upstream of the fuel flow from the valve seat, the fuel passage is closed by bringing the ball of the valve body into contact with the seat surface of the valve seat, and the ball of the valve body is
  • a fuel injection valve is known in which a fuel passage is opened by being separated from a seat surface.
  • An injection hole plate having a plurality of injection holes is fixed downstream of the valve seat in the fuel flow.
  • the valve seat is provided with an opening through which fuel flows from the fuel passage along the seat surface to the nozzle hole plate. The fuel that is opened from the opening of the valve seat when the fuel passage is opened is injected outside through a plurality of injection holes.
  • the seat surface of the valve seat is inclined in a direction approaching the axis of the valve seat toward the downstream side of the fuel flow.
  • the plurality of nozzle holes incline in a direction away from the axis of the valve seat toward the downstream side of the fuel flow.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a fuel injection valve capable of promoting atomization of fuel injected from the injection hole to the outside.
  • a fuel injection valve has a valve seat and a ball on which a seat surface that is inclined in a direction approaching an axis toward a downstream side of a fuel flow is formed, and a valve-closed position in which the ball is brought into contact with the seat surface And a valve opening position that opens and closes a gap fuel passage formed between the ball and the seat surface, and a plurality of nozzle holes are provided.
  • the nozzle plate is disposed downstream of the seat in the flow of the fuel, and the nozzle plate has a plate-facing surface facing the valve seat, and the plate-facing surface has a plurality of nozzle holes.
  • Each of the openings is formed as an injection hole inlet, and the plurality of injection holes are inclined in a direction away from the axis toward the downstream side of the fuel flow from the injection hole inlet.
  • the fuel injection valve of the present invention it is possible to suppress the rapid expansion of the flow of the fuel exiting from the passage outlet of the gap fuel passage, and to more reliably flow the fuel into the nozzle hole inlet of the nozzle hole. it can.
  • FIG. 4 is a graph showing a relationship between a cross-sectional area of a gap fuel passage formed between a ball and a seat surface when the valve body in FIG. 3 is in a valve opening position, and a position on the seat surface. The relationship between the cross-sectional area of the gap fuel passage at the seat outlet position in FIG. 5 and the cross-sectional area of the gap fuel passage at the seat contact position, and the particle diameter of the fuel injected from the nozzle hole It is a graph which shows.
  • FIG. 1 is a cross-sectional view showing a fuel injection valve according to Embodiment 1 of the present invention.
  • the fuel injection valve 1 has a drive device 2 and a valve device 3 operated by the drive device 2.
  • the fuel is injected from the valve device 3 after sequentially passing through the drive device 2 and the valve device 3.
  • the drive device 2 includes a housing 4 which is a two-stage cylindrical yoke portion, a cylindrical core 5 which is a fixed iron core disposed inside the housing 4, and an inner side of the housing 4 so as to surround the core 5.
  • the terminal 9 for electrically connecting the coil 6 to the outside, the housing 4, the core 5, the coil 6, the bobbin 7, the cap 8 and the terminal 9 are integrated to form the outer shape of the fuel injection valve 1.
  • the molded body 10 made of resin, a filter 11 disposed inside the core 5, and a rubber ring 12 surrounding the outer periphery of the core 5 are included.
  • the housing 4, the core 5, the coil 6, the bobbin 7 and the cap 8 are arranged coaxially with the axis P of the fuel injection valve 1.
  • the cap 8 has a notch.
  • a terminal 9 is connected to the coil 6 through a notch portion of the cap 8. When the coil 6 is energized through the terminal 9, an electromagnetic force is generated from the coil 6.
  • the valve device 3 includes a valve seat 14 provided with a valve seat inner space portion 13, a nozzle hole plate 15 disposed on the downstream side of the fuel flow with respect to the valve seat 14, and fuel flow more than the valve seat 14.
  • a valve body 16 disposed upstream of the flow and displaceable with respect to the valve seat 14 in a direction along the axis P, and a cylindrical holder 17 that accommodates the valve seat 14, the nozzle hole plate 15, and the valve body 16;
  • a cylindrical fixed rod 18 that is disposed upstream of the valve body 16 in the fuel flow and is fixed to the core 5, and an elastic body that is disposed between the valve body 16 and the fixed rod 18.
  • the holder 17 is fixed to the housing 4.
  • the valve seat 14 is fixed to the inner peripheral surface of the holder 17. Further, the valve seat 14 is disposed downstream of the core 5 in the fuel flow. Thereby, the valve body 16 is disposed between the core 5 and the valve seat 14.
  • the nozzle hole plate 15 is fixed to the valve seat 14.
  • the valve seat 14, the injection hole plate 15, the valve body 16, the holder 17, the fixed rod 18 and the spring 19 are arranged coaxially with the axis P of the fuel injection valve 1.
  • FIG. 2 is an enlarged cross-sectional view showing the main parts of the valve seat 14 and the nozzle hole plate 15 of FIG.
  • the valve seat 14 is provided with a through hole 14a that penetrates from the valve seat inner space 13 to the nozzle hole plate 15 side.
  • the through hole 14 a is provided coaxially with the axis P.
  • the inner surface of the valve seat inner space 13 has a cylindrical sliding surface 20 along the direction in which the valve body 16 is displaced, and a conical shape that is inclined with respect to the axis P and reaches the through hole 14a from the sliding surface 20. Sheet surface 21.
  • valve seat 14 has a cylindrical sliding surface 20 along the axis P, and a seat surface 21 that continuously inclines from the sliding surface 20 toward the axis P toward the downstream side of the fuel. Is formed.
  • the inner diameter of the sliding surface 20 is larger than the inner diameter of the through hole 14a.
  • the valve body 16 is disposed between the core 5 and the seat surface 21 so as to be displaceable.
  • the valve body 16 connects the ball 22 inserted into the valve seat inner space portion 13, the tubular armature 23 that is a movable iron core disposed in the holder 17, and the ball 22 and the armature 23.
  • a connecting member 24 having a cylindrical hole.
  • the valve body 16 is displaced with respect to the valve seat 14 while guiding the ball 22 to the sliding surface 20.
  • the amateur 23 faces the core 5 in the direction along the axis P of the fuel injection valve 1.
  • the ball 22 is formed with a plurality of slit surfaces 22a which are planes along the axis P.
  • four slit surfaces 22 a are formed at equal intervals in the circumferential direction of the ball 22.
  • a gap fuel passage through which fuel flows is formed between each of the sliding surface 20 and the seat surface 21 and the ball 22.
  • a gap fuel passage between the sliding surface 20 and the ball 22 is formed between each slit surface 22 a of the ball 22 and the sliding surface 20. Therefore, in this example, four gap fuel passages are formed at equal intervals in the circumferential direction of the ball 22 between the inner surface of the valve seat space 13 and the ball 22.
  • the valve body 16 is displaceable between a valve closing position where the ball 22 is brought into contact with the seat surface 21 and a valve opening position where the ball 22 is separated from the seat surface 21.
  • the amateur 23 contacts the core 5 when the valve body 16 reaches the valve opening position, and moves away from the core 5 when displaced from the valve opening position toward the valve closing position.
  • valve body 16 When the valve body 16 reaches the valve open position, the gap fuel passage formed between the ball 22 and the seat surface 21 is opened, that is, the valve is opened.
  • valve body 16 When the valve body 16 reaches the valve closing position, the ball 22 comes into a line contact state in which the ball 22 contacts the seat surface 21 on the circumference. Thereby, there is no gap between the ball 22 and the seat surface 21, and the gap fuel passage is closed, that is, the valve is closed.
  • 1 and 2 show a valve closing state in which the valve body 16 has reached the valve closing position.
  • the fuel flows through the gap fuel passage formed between the inner surface of the valve seat inner space 13 and the ball 22 in the order of the sliding surface 20 and the seat surface 21, and then passes through the through hole 14 a to the nozzle plate 15. Get out.
  • the amount of fuel exiting from the through hole 14 a to the nozzle hole plate 15 is adjusted by the ball 22 contacting the seat surface 21 or the ball 22 moving away from the seat surface 21.
  • the nozzle hole plate 15 is fixed to the valve seat 14 by welding.
  • the nozzle hole plate 15 is provided with a plurality of nozzle holes 31 penetrating the nozzle hole plate 15.
  • the fuel that has exited from the through hole 14a of the valve seat 14 to the injection hole plate 15 is injected from the plurality of injection holes 31 to the outside.
  • the spring 19 generates an elastic restoring force while being contracted between the fixed rod 18 and the connecting member 24. As a result, the spring 19 biases the valve body 16 in the direction in which the ball 22 contacts the seat surface 21.
  • the amateur 23 is attracted to the core 5. That is, the coil 6 generates an electromagnetic attractive force that attracts the armature 23 to the core 5.
  • the valve body 16 is displaced in a direction away from the seat surface 21 against the urging force of the spring 19.
  • the space in the fixed rod 18, the space in which the spring 19 is disposed, and the space in the connecting member 24 are fuel passages through which fuel flows.
  • the fuel flows through the fuel passage in the order of the fixed rod 18, the spring 19, and the connecting member 24, and then flows into the valve seat inner space 13 of the valve seat 14.
  • the seat surface 21 has a contact portion with which the ball 22 contacts when the valve body 16 is in the valve closing position.
  • the position of the upstream end of the seat surface 21 is the sheet entrance position A
  • the position of the contact portion of the seat surface 21 with the ball 22 is the seat contact position B
  • the downstream end of the seat surface 21 is Assuming that the position is the seat exit position C
  • the portion from the seat entrance position A to the seat contact position B in the gap fuel passage when the valve body 16 is in the valve open position is a running passage
  • the seat contact position B To the sheet exit position C is a diffusion passage.
  • the length of the gap fuel passage from the seat entrance position A to the seat contact position B is the length of the gap fuel passage from the seat contact position B to the seat exit position C, ie, the length of the diffusion passage. It is longer than L2.
  • FIG. 3 is an enlarged cross-sectional view showing a main part of the nozzle hole plate 15 of FIG. 4 is a top view showing the nozzle hole plate 15 when viewed from the ball 22 of FIG.
  • the axis of each nozzle hole 31 is inclined with respect to the axis P in a direction away from the axis P toward the downstream side of the fuel flow.
  • the nozzle hole plate 15 is formed with a plate facing surface 15 a that faces the valve seat 14.
  • each opening of each nozzle hole 31 is formed as a nozzle hole inlet.
  • Each nozzle hole 31 is concentratedly arranged close to the axis P to the limit of mass production control.
  • the distance h between the nozzle hole inlet and the ball 22 is shorter than the length t of the nozzle hole 31 in the direction along the axis of the nozzle hole 31. ing.
  • the dimension of the gap between the plate facing surface 15a of the nozzle hole plate 15 and the ball 22 is the minimum value that can be managed in mass production. Thereby, the volume of the space in the through hole 14a in the closed state is reduced, and the loss due to the flow of excess fuel flowing in the through hole 14a when the valve is closed is minimized.
  • the plurality of injection holes 31 are arranged at intervals from each other in the circumferential direction of the injection hole plate 15.
  • four injection holes 31 are provided at equal intervals in the circumferential direction of the injection hole plate 15 on a circle centering on the axis P of the fuel injection valve 1.
  • the four injection holes 31 are described as injection holes 31a, 31b, 31c, and 31d, respectively, as shown in FIGS.
  • the circumferential position of each nozzle hole 31a, 31b, 31c, 31d (hereinafter referred to as “each nozzle hole 31a to 31d”) is set in accordance with the circumferential position of each slit surface 22a.
  • the nozzle holes 31a to 31d are provided in the nozzle hole plate 15 so as to correspond to the respective circumferential positions of the gap fuel passages generated by the slit surfaces 22a.
  • the nozzle hole inlets of the nozzle hole 31a and the nozzle hole 31c are arranged at symmetrical positions with respect to the axis P, and each of the nozzle hole 31b and the nozzle hole 31d is provided.
  • the nozzle hole inlets are arranged symmetrically with respect to the axis P.
  • FIG. 5 is an enlarged cross-sectional view showing the main part of the valve device 3 when the valve body 16 of FIG. 3 has reached the valve opening position.
  • the passage outlet 30 of the gap fuel passage is formed at the position of the outlet of the diffusion passage, that is, the seat outlet position C.
  • the injection hole inlets of the injection holes 31a to 31d are formed in a range in which the corresponding gap fuel passage directly faces the plate facing surface 15a from the seat outlet position C when the valve body 16 is in the valve open position. That is, as shown in FIG. 5, the tangent VL1 of the ball 22 at the passage outlet 30 of the gap fuel passage formed at the seat outlet position C and the extension line VL2 of the seat surface 21 intersect with the plate facing surface 15a.
  • the nozzle hole inlets of the corresponding nozzle holes 31a to 31d are located in the range between the two intersections.
  • each of the injection hole inlets of the pair of injection holes 31a and 31c are symmetric with respect to the axis P.
  • the fuel flows that have passed above face each other on the axis P. Thereby, the fuel collides with each other on the axis P, and the flow velocity of the fuel is suppressed on the axis P.
  • the flow velocity of the fuel that has passed above the respective nozzle hole inlets of the pair of nozzle holes 31b and 31d that are symmetric with respect to the axis P is also suppressed on the axis P.
  • FIG. 6 shows the relationship between the cross-sectional area of the gap fuel passage formed between the ball 22 and the seat surface 21 and the position on the seat surface 21 when the valve body 16 of FIG. It is a graph.
  • the cross-sectional area of the running passage in the gap fuel passage continuously decreases from the seat entrance position A toward the seat contact position B, that is, toward the downstream side of the fuel flow.
  • the cross-sectional area of the diffusion passage in the gap fuel passage continuously increases from the seat contact position B toward the seat exit position C, that is, toward the downstream side of the fuel flow.
  • the gap portion where the cross-sectional area of the gap fuel passage becomes the smallest when the valve body 16 is in the valve opening position is the passage of the gap fuel passage. It is formed as a narrow part.
  • the fuel supplied from the gap fuel passages to the nozzle hole plate 15 flows into the nozzle holes 31a to 31d corresponding to the gap fuel passages from the nozzle hole inlets.
  • the fuel flowing into each nozzle hole 31a to 31d is turned into a liquid film when flowing through each nozzle hole 31a to 31d.
  • the following first to third elements promote the formation of a liquid film of fuel in the nozzle hole 31a.
  • the inflow of fuel from the outer side in the radial direction than the nozzle hole 31a becomes dominant due to the pressure distribution at the nozzle hole inlet of the nozzle hole 31a.
  • This fuel supply balance is referred to as “fuel supply balance to the nozzle holes due to the inclination of the nozzle holes”.
  • the fuel supply from the radially outer side to the nozzle hole 31a is caused by the fuel supply balance to the nozzle hole by the arrangement of the nozzle hole and the fuel supply balance to the nozzle hole by the inclination of the nozzle hole. The inflow becomes stronger.
  • the distance h between the nozzle hole inlet and the ball 22 in the direction along the axis of the nozzle hole 31a is about the direction along the axis of the nozzle hole 31a. It is shorter than the length t of the nozzle hole 31a.
  • the nozzle hole inlet of the nozzle hole 31a is formed in a range in which the gap fuel passage corresponding to the nozzle hole 31a directly faces the plate facing surface 15a from the seat outlet position C.
  • the fuel exiting from the passage outlet 30 of the gap fuel passage corresponding to the nozzle hole 31a directly reaches the nozzle hole inlet of the nozzle hole 31a without being blocked by the ball 22 and the valve seat 14. Therefore, energy loss of the fuel flow is suppressed.
  • the cross-sectional area of the gap fuel passage formed between the seat surface 21 and the ball 22 continuously increases from the seat contact position B toward the seat exit position C.
  • the fuel that mainly flows near the ball 22 is injected as shown by the arrow in FIG. 4 and the arrow AR in FIG. It passes above the nozzle hole entrance of the hole 31a and goes behind the other nozzle hole 31b.
  • the fuel that has flowed behind the other nozzle holes 31b hinders the promotion of fuel film formation at the nozzle holes 31b.
  • the fuel since the flow velocity of the fuel that has passed above the nozzle hole inlets of the nozzle holes 31a to 31d is suppressed on the axis P, the fuel flows from the rear in each of the nozzle holes 31a to 31d. It is suppressed.
  • the passage sectional area ratio SC / SB is set to 1.3 or less.
  • the cross-sectional area SC of the gap fuel passage at the seat outlet position C is 1.3 times or less than the cross-sectional area SB of the gap fuel path at the seat contact position B.
  • the passage sectional area ratio SC / SB is 1.2.
  • the fuel filled in the valve seat space 13 is formed at the seat outlet position C through the gap fuel passages in the order of the sliding surface 20 and the seat surface 21. It exits toward the nozzle hole plate 15 from the exit 30 of the passage.
  • the fuel exiting from the passage outlet 30 of each gap fuel passage mainly flows into each nozzle hole 31a to 31d corresponding to each gap fuel passage from the nozzle hole inlet, and flows through each nozzle hole 31a to 31d while being formed into a liquid film. . Thereafter, the liquid film fuel is injected from the nozzle holes 31a to 31d and atomized by friction with the external air.
  • the cross-sectional area SC of the gap fuel passage at the seat outlet position C is 1.3 times or less of the cross-sectional area SB of the gap fuel path at the seat contact position B. It is possible to suppress the rapid expansion of the flow of fuel from the passage outlet 30 of the fuel passage, and it is possible to more reliably flow the fuel into the injection hole inlet of each injection hole 31 corresponding to each gap fuel passage. . Accordingly, it is possible to suppress the fuel that has exited from the passage outlet 30 of the gap fuel passage from flowing into the other nozzle holes 31 other than the nozzle holes 31 corresponding to the gap fuel passage from behind. It is possible to promote the formation of a liquid film of fuel. Therefore, atomization of the fuel injected to the outside from each nozzle hole 31 can be promoted.
  • the length L1 of the gap fuel passage from the seat inlet position A to the sheet contact position B is longer than the length L2 of the gap fuel path from the seat contact position B to the seat outlet position C.
  • the flow at the position close to the ball 22 in the flow of fuel exiting from the passage outlet 30 of the gap fuel passage can be weakened, and the fuel flows directly into each nozzle hole 31 along the extension line of the seat surface 21. You can make the flow dominant. Therefore, the fuel can be more reliably flowed into the nozzle hole inlets of the nozzle holes 31 corresponding to the gap fuel passages.
  • the distance h between the injection hole inlet of the injection hole 31 and the ball 22 in the direction along the axis of the injection hole 31 is longer than the length t of the injection hole 31. Therefore, the nozzle hole 31 out of the flow of fuel flowing from the nozzle hole inlet to the nozzle hole 31 in a low fuel pressure state where the valve body 16 starts to be displaced from the valve closing position to the valve opening position.
  • the component orthogonal to the axis of the injection hole 31 can be strengthened rather than the component along the axis of As a result, the action of the fuel being pressed against the inner surface of the nozzle hole 31 can be increased, and the formation of a liquid film of fuel at the nozzle hole 31 can be further promoted.
  • the length of the gap fuel passage from the seat entrance position A to the seat contact position B is the length of the gap fuel passage from the seat contact position B to the seat exit position C. That is, although it is longer than the length L2 of the diffusion passage, the sectional area SC of the gap fuel passage at the seat outlet position C is 1.3 times the sectional area SB of the gap fuel passage at the seat contact position B.
  • the length L1 of the run-up passage may be the same as the length L2 of the diffusion passage, or the length L1 of the run-up passage may be shorter than the length L2 of the diffusion passage.
  • the tangent line VL1 of the ball 22 at the passage outlet 30 of the gap fuel passage is the axis P in the space between the ball 22 and the plate facing surface 15a. If the cross-sectional area SC of the gap fuel passage at the seat outlet position C is 1.3 times or less than the cross-sectional area SB of the gap fuel path at the seat contact position B, the valve body When 16 is in the valve open position, the tangent line VL1 of the ball 22 at the passage outlet 30 of the gap fuel passage may not intersect the axis P in the space between the ball 22 and the plate facing surface 15a.
  • the distance h between the injection hole inlet of the injection hole 31 and the ball 22 in the direction along the axis of the injection hole 31 is the length t of the injection hole 31. If the cross-sectional area SC of the gap fuel passage at the seat outlet position C is 1.3 times or less than the cross-sectional area SB of the gap fuel path at the seat contact position B, the valve body 16 is The distance h when in the valve closing position may be the same as the length t of the injection hole 31, or the distance h when the valve body 16 is in the valve closing position is longer than the length t of the injection hole 31. May be.

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

Abstract

La présente invention concerne une soupape d'injection de carburant, dans laquelle une surface de siège qui s'incline dans une direction s'approchant d'une ligne d'axe vers le côté aval du flux de carburant est formée dans un siège de soupape. Un corps de soupape peut se déplacer entre une position de soupape fermée dans laquelle une bille du corps de soupape est amenée en contact avec la surface de siège, et une position de soupape ouverte dans laquelle la bille est séparée de la surface de siège. Le corps de soupape ouvre et ferme un passage de carburant d'espace créé entre la bille et la surface de siège. Une pluralité de trous de buse disposés dans une plaque de trous de buse sont inclinés dans une direction opposée à la ligne d'axe, à partir d'une entrée de trou de buse vers le côté aval du flux de carburant. Lorsque le corps de soupape est dans la position de soupape ouverte, la surface de section transversale du passage de carburant d'espace au niveau de la position de sortie de siège n'est pas supérieure à 1,3 fois la surface de section transversale du passage de carburant d'espace au niveau de la position de contact de siège, la position de sortie de siège étant la position de l'extrémité côté aval de la surface de siège, et la position de contact de siège étant la position de la partie de la surface de siège qui entre en contact avec la bille.
PCT/JP2016/083254 2016-11-09 2016-11-09 Soupape d'injection de carburant WO2018087849A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2016/083254 WO2018087849A1 (fr) 2016-11-09 2016-11-09 Soupape d'injection de carburant
CN201680090515.2A CN109891083B (zh) 2016-11-09 2016-11-09 燃料喷射阀
JP2018549683A JP6692451B2 (ja) 2016-11-09 2016-11-09 燃料噴射弁

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/083254 WO2018087849A1 (fr) 2016-11-09 2016-11-09 Soupape d'injection de carburant

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WO2018087849A1 true WO2018087849A1 (fr) 2018-05-17

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CN (1) CN109891083B (fr)
WO (1) WO2018087849A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN112840117A (zh) * 2018-10-23 2021-05-25 三菱电机株式会社 电磁式燃料喷射阀

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Publication number Priority date Publication date Assignee Title
JP2002332935A (ja) * 2001-05-08 2002-11-22 Hitachi Ltd 燃料噴射弁および内燃機関
JP2006207439A (ja) * 2005-01-27 2006-08-10 Keihin Corp 燃料噴射弁
JP2013002432A (ja) * 2011-06-22 2013-01-07 Mitsubishi Electric Corp 燃料噴射弁

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JP2004308648A (ja) * 2003-03-25 2004-11-04 Hitachi Unisia Automotive Ltd 燃料噴射弁
CN101589222B (zh) * 2007-01-29 2012-05-09 三菱电机株式会社 燃料喷射阀
JP5875442B2 (ja) * 2012-03-30 2016-03-02 日立オートモティブシステムズ株式会社 燃料噴射弁
WO2014064766A1 (fr) * 2012-10-23 2014-05-01 三菱電機株式会社 Injecteur de carburant
JP2015078603A (ja) * 2013-10-15 2015-04-23 三菱電機株式会社 燃料噴射弁

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002332935A (ja) * 2001-05-08 2002-11-22 Hitachi Ltd 燃料噴射弁および内燃機関
JP2006207439A (ja) * 2005-01-27 2006-08-10 Keihin Corp 燃料噴射弁
JP2013002432A (ja) * 2011-06-22 2013-01-07 Mitsubishi Electric Corp 燃料噴射弁

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112840117A (zh) * 2018-10-23 2021-05-25 三菱电机株式会社 电磁式燃料喷射阀

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CN109891083A (zh) 2019-06-14
CN109891083B (zh) 2021-05-14
JPWO2018087849A1 (ja) 2019-02-21
JP6692451B2 (ja) 2020-05-13

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