WO2013103162A1 - Injecteur pour dispositif d'injection de carburant - Google Patents

Injecteur pour dispositif d'injection de carburant Download PDF

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Publication number
WO2013103162A1
WO2013103162A1 PCT/KR2012/000053 KR2012000053W WO2013103162A1 WO 2013103162 A1 WO2013103162 A1 WO 2013103162A1 KR 2012000053 W KR2012000053 W KR 2012000053W WO 2013103162 A1 WO2013103162 A1 WO 2013103162A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
injector
injection device
cylinder
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.)
Ceased
Application number
PCT/KR2012/000053
Other languages
English (en)
Korean (ko)
Inventor
심대일
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.)
Vitesco Technologies Korea Corp
Original Assignee
Continental Automotive Systems Corp
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 Continental Automotive Systems Corp filed Critical Continental Automotive Systems Corp
Priority to PCT/KR2012/000053 priority Critical patent/WO2013103162A1/fr
Publication of WO2013103162A1 publication Critical patent/WO2013103162A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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

Definitions

  • the present invention relates to an injector of a fuel injection device, and more particularly to an injector of a fuel injection device in relation to the internal shape of the injection nozzle among the components constituting the injector of the fuel injection device.
  • an engine in general, includes an intake stroke that sucks air into a cylinder, a compression stroke that compresses the sucked air into a combustion chamber to increase its temperature, a combustion stroke that generates power by injecting fuel into the heated air and burns it, and exhausts exhaust gas out of the cylinder. Power is obtained through the exhaust stroke.
  • the fuel is self-ignited by the heat of compression and burned.
  • the exhaust valve is opened, the exhaust gas is discharged to the outside of the cylinder.
  • the needle valve opens the injection hole of the injection nozzle by the armature located in the middle of the housing to inject the fuel. It is made of a structure to make it.
  • the structure forming the injection port of the injection nozzle is made of a single circular shape is formed so as to evenly fuel injection to all surfaces inside the cylinder (a).
  • a shape (a) has a problem in that fuel loss occurs as the injected fuel collides with the intake valve when the fuel is injected into the cylinder through the injector of the fuel injection device as shown in FIG. 3.
  • an object of the present invention is to inject a nozzle so as to minimize the collision between the intake valve inside the cylinder and the fuel injected when injecting fuel from the injector of the fuel injection device. It is to provide an injector of a fuel injection device having an injection port shape of.
  • the injector of the fuel injection device for achieving the above object is an injector of the fuel injection device for injecting fuel by opening the injection port of the needle valve when the current is applied to the solenoid coil, the inner center of the injection port
  • the injection port is formed to block the one side of the needle valve to inject the fuel to the side portion of the inside of the injection port.
  • the inner central portion and the side portion of the injection port is characterized in that it is formed in a circular shape.
  • one side of the needle valve is characterized in that it is formed in a protruding shape at the last end of the needle valve for opening and closing the injection port.
  • the present invention implements the injection hole shape of the injection nozzle to minimize the collision between the intake valve in the cylinder and the injected fuel when injecting the fuel from the injector of the fuel injection device, the cylinder when injecting the fuel in the cylinder While increasing the amount of fuel injected into the interior, there is an advantage of improving fuel efficiency by minimizing the amount of fuel lost when injecting fuel into the cylinder.
  • FIG. 1 is a view showing an injector of a fuel injection device according to the prior art.
  • FIG. 2 is a view showing the shape of the injection hole of the injection nozzle in the injector of the fuel injection device shown in FIG.
  • FIG. 3 is a view showing that fuel is injected into the cylinder from the injector of the fuel injection device shown in FIG.
  • Figure 4 is a view showing an injector of the fuel injection device according to the present invention as an embodiment.
  • FIG. 5 is a view showing an embodiment of the injection hole shape of the injection nozzle in the injector of the fuel injection device shown in FIG.
  • FIG. 6 is a view illustrating an end shape of a needle valve of an injector of the fuel injection device illustrated in FIG. 4 as an example.
  • FIG. 4 is a view showing an injector 100 of a fuel injection device according to an embodiment of the present invention.
  • the injector 100 of the fuel injection device opens the injection port of the injection nozzle by the armature located at the middle of the housing when the needle valve 110 is applied with current to the solenoid coil. It is made to have a structure to inject, and in particular is formed so that the fuel injection to the side portion of the injection hole inside the injection nozzle of the injection nozzle of the injection nozzle in a predetermined size to block the inside.
  • the injector 100 of the fuel injection device consists of a nozzle body in which the needle valve 110 is disposed, the needle valve 110 interacts with the valve closing body and close the valve
  • the body forms a sealing seat with the valve seat face disposed on the valve seat body.
  • the magnetic coil of the injector 100 of the fuel injection device is encapsulated in the coil housing and wound on the coil carrier, which is supported by the inner pole of the magnetic coil.
  • the inner and outer poles are separated from each other through the narrow portion and are connected to each other through the non-ferromagnetic connecting parts.
  • the magnetic coil is caused by a current that can be supplied via a line and via an electrical plug contact.
  • the needle valve 110 is guided in the guide of the disk-shaped needle valve 110, and a pair of adjusting disks is used to adjust the stroke. On the other side of this adjustment disc is the armature.
  • This armature is nonpositively connected to the needle valve by a flange, and the needle valve 110 is connected to the flange by a welding seam.
  • the flange is supported by a return spring which is prestressed through the sleeve in this form of the injector 100.
  • the armature is acted opposite to the direction of stroke by the return spring, so that the valve closing body is supported in the sealed position of the valve seat surface.
  • the coil When the magnetic coil is excited, the coil forms a magnetic field that moves the armature in the stroke direction against the spring force of the return spring.
  • the armature likewise leads the flange welded to the needle valve in the stroke direction, and the valve closing body connected to the needle valve rises from the valve seat surface, whereby fuel is injected through the injection nozzle.
  • the armature When the coil current is connected, the armature is lowered from the inner pole by the pressure of the return spring after the magnetic field is sufficiently reduced, so that the flange connected to the needle valve moves in the opposite direction of stroke.
  • the injection hole of the injection nozzle to inject more fuel into the cylinder while preventing the collision between the intake valve in the cylinder and the injected fuel, the injection hole inside the injection nozzle Among them, it is preferable that the central portion is formed in a structure that blocks a predetermined size.
  • the specific shape of the injection port of the injection nozzle is shown as an example in FIG.
  • an injection hole of the injection nozzle is formed in the plate 120 forming the injection nozzle, and a center of the injection hole inside the injection nozzle is formed at one side of the needle valve 110.
  • the shape of the connected valve closing body of the needle valve 110 is structured in the final stage as the spire formation, so that the needle valve 110 is sprayed even when it rises from the valve seek surface.
  • the valve closing body of the needle valve 110 stays at the center of the injection hole of the nozzle, thereby achieving the injection hole shape of the injection nozzle shown in FIG. 5.
  • the present invention is to implement the injection hole shape of the injection nozzle to minimize the collision between the intake valve and the fuel injected into the cylinder when injecting fuel from the injector of the fuel injection device, the possibility of commercial or commercial This is not only sufficient but also practically evident, and thus it is an invention with industrial applicability.

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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

L'invention concerne un injecteur pour un dispositif d'injection de carburant. L'injecteur selon la présente invention est configuré de manière à avoir la forme d'un orifice de jet d'une buse d'injection de manière à réduire au minimum les collisions entre le carburant injecté et la soupape d'admission d'air à l'intérieur d'un cylindre lorsque du carburant est injecté par l'injecteur du dispositif d'injection de carburant. Par conséquent, selon la présente invention, il est possible d'améliorer l'efficacité du carburant en maintenant la plus grande quantité possible de carburant qui peut être injectée dans le cylindre lors de l'injection du carburant dans le cylindre tout en réduisant au minimum la quantité de carburant qui est perdue lorsque le carburant est injecté dans le cylindre.
PCT/KR2012/000053 2012-01-03 2012-01-03 Injecteur pour dispositif d'injection de carburant Ceased WO2013103162A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/000053 WO2013103162A1 (fr) 2012-01-03 2012-01-03 Injecteur pour dispositif d'injection de carburant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2012/000053 WO2013103162A1 (fr) 2012-01-03 2012-01-03 Injecteur pour dispositif d'injection de carburant

Publications (1)

Publication Number Publication Date
WO2013103162A1 true WO2013103162A1 (fr) 2013-07-11

Family

ID=48745217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/000053 Ceased WO2013103162A1 (fr) 2012-01-03 2012-01-03 Injecteur pour dispositif d'injection de carburant

Country Status (1)

Country Link
WO (1) WO2013103162A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR820000998B1 (ko) * 1978-12-19 1982-06-04 쿠르트 쿠클라 연료 분사기
KR830001509A (ko) * 1979-08-17 1983-05-17 쿠르트 쿠클라, 리하르트 바우어 연료분사기
JPS60190663A (ja) * 1984-03-12 1985-09-28 Toyota Motor Corp 内燃機関の燃料噴射弁
JPH08261111A (ja) * 1995-03-24 1996-10-08 Nissan Diesel Motor Co Ltd ディーゼルエンジンの燃料噴射ノズル

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR820000998B1 (ko) * 1978-12-19 1982-06-04 쿠르트 쿠클라 연료 분사기
KR830001509A (ko) * 1979-08-17 1983-05-17 쿠르트 쿠클라, 리하르트 바우어 연료분사기
JPS60190663A (ja) * 1984-03-12 1985-09-28 Toyota Motor Corp 内燃機関の燃料噴射弁
JPH08261111A (ja) * 1995-03-24 1996-10-08 Nissan Diesel Motor Co Ltd ディーゼルエンジンの燃料噴射ノズル

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