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KR970707382A - (FUEL INJECTOR HAVING REDUCED STREAM DISPERSION, ESPECIALLY OF AN OFF-AXIS INJECTED STREAM) - Google Patents

(FUEL INJECTOR HAVING REDUCED STREAM DISPERSION, ESPECIALLY OF AN OFF-AXIS INJECTED STREAM)

Info

Publication number
KR970707382A
KR970707382A KR1019970702510A KR19970702510A KR970707382A KR 970707382 A KR970707382 A KR 970707382A KR 1019970702510 A KR1019970702510 A KR 1019970702510A KR 19970702510 A KR19970702510 A KR 19970702510A KR 970707382 A KR970707382 A KR 970707382A
Authority
KR
South Korea
Prior art keywords
fuel injector
tip
fuel
orifices
seat
Prior art date
Application number
KR1019970702510A
Other languages
Korean (ko)
Other versions
KR100386218B1 (en
Inventor
로스 더블유. 우드
헨리 씨. 도지어
Original Assignee
러셀 씨. 웰스
지멘스 오토모티브 코퍼레이션
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 러셀 씨. 웰스, 지멘스 오토모티브 코퍼레이션 filed Critical 러셀 씨. 웰스
Publication of KR970707382A publication Critical patent/KR970707382A/en
Application granted granted Critical
Publication of KR100386218B1 publication Critical patent/KR100386218B1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • 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
    • 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

Landscapes

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

Abstract

분사된 연료 스트림의 분산을 제한하는 주요한 개량점은 선단부분과 말단부분을 가지도록 니들밸브(21)의 첨단을 구성함으로써 얻어지며 여기에서 선단부분은 이러한 가상구를 통과하는 가상 이격된 평행면에 의해서 기하학적으로 형성된 가상구의 부위의 형상을 한 표면(52)을 가지고 있으며, 선단부분의 표면은 상기 밸브요소가 왕복운동함에 따라 절두원추형 시트에 안착 및 탈착하는 상기 첨단의 부분이며 말단부분(56)은 선단부분으로부터 접선방향으로 뻗어 있는 절두원추형 표면을 포함하고 있다. 분사된 스트림의 분산의 이러한 제한은 분사된 연료의 더 좋은 목표를 제공한다.A major improvement point that limits the dispersion of the injected fuel stream is obtained by constructing the tip of the needle valve 21 so as to have a tip portion and a distal portion, wherein the tip portion is formed by virtually spaced parallel planes passing through this virtual hole And the surface of the tip portion is the tip portion for seating and detaching in the frusto-conical seat as the valve element reciprocates, and the distal portion (56) And includes a frusto-conical surface extending in the tangential direction from the tip portion. This limitation of the dispersion of the injected stream provides a better target of the injected fuel.

Description

축선이탈분사스트림의 감소된 스트림분산을 가진 연료 인젝터(FUEL INJECTOR HAVING REDUCED STREAM DISPERSION, ESPECIALLY OF AN OFF-AXIS INJECTED STREAM)(FUEL INJECTOR HAVING REDUCED STREAM DISPERSION, ESPECIALLY OF AN OFF-AXIS INJECTED STREAM)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 본 발명의 원리를 구체화하는 연료 인젝터의 종단면도, 제2도는 연료 인젝터의 노즐의 부분종단면도, 제3도는 니들 첨단의 종단면도.FIG. 1 is a longitudinal section of a fuel injector embodying the principles of the invention, FIG. 2 is a partial longitudinal section of a nozzle of a fuel injector, and FIG. 3 is a longitudinal section of a needle tip.

Claims (14)

연료를 내연기관내로 분사하기 위하여 몸체, 몸체를 통하여 연료가 분사되는 노즐에 이르는 연료통로, 통로내의 몸체의 내부에 배치되고 구멍에 이르는 절두원추형시트를 가지고 있고 구멍을 제한하는 밸브시트부재, 밸브시트에 니틀밸브요소의 첨단을 안착 및 탈착함으로써 유동하게 하는 통로를 개폐하여 밸브시트부재의 제한된 구멍을 통하여 유동을 허용하고 허용하지 않도록 밸브시트에 대해 왕복이동되는 니들밸브요소를 가진 전기 작동식 기구, 상기 구멍을 덮는 관계로 있는 시트 부재에 대해 배치되는 오리피스 디스크를 가지고 있고 이 오리피스 디스크의 다수의 메터링 오리피스중의 하나를 통하여 연료가 분사되는 연료 인젝터에 있어서, 니들밸브요소의 첨단은 선단부분과 말단부분을 가지고 있고 상기 선단부분은 이러한 가상구를 통과하는 가상 이격된 평행면에 의해서 기하학적으로 형성된 가상구의 부위와 형상을 한 표면을 가지고 있으며 상기 선단부분의 상기 표면은 상기 밸브요소가 왕복운동함에 따라 상기 시트에 안착 또는 탈착되는 상기 첨단의 부분이며, 상기 말단부분은 상기 선단부분의 상기 표면으로부터 접선적으로 뻗어 있는 절두원추형 표면을 포함하고 있는 것을 특징으로 하는 연료 인젝터.A fuel passage leading to a nozzle through which fuel is injected through the body and the body for injecting the fuel into the smoke pipe, a valve seat member disposed inside the body of the passage and having a truncated conical seat leading to the hole, An electrically operated mechanism having a needle valve element reciprocated relative to the valve seat to open and close the passage through which the tip of the knet valve element is seated and detached in the seat to allow and permit flow through the limited aperture of the valve seat member A fuel injector having an orifice disc disposed about the sheet member in contact with the hole and through which one of a plurality of metering orifices of the orifice disc is injected, And a distal end portion, wherein the distal end portion passes through the virtual sphere Wherein the surface of the tip portion is a portion of the tip that is seated or detached from the seat as the valve element reciprocates, And the distal portion includes a frusto-conical surface extending tangentially from the surface of the tip portion. 제1항에 있어서, 상기 절두원추형 표면은 말단부분의 전체가 실질적으로 완전히 원뿔로 되도록 원뿔첨단에서 종결되어 있는 것을 특징으로 하는 연료 인젝터.2. The fuel injector of claim 1, wherein the frusto-conical surface terminates at the tip of the cone so that the entirety of the distal portion is substantially completely conical. 제2항에 있어서, 상기 원뿔 첨단의 사잇각은 110도이며 상기 시트의 사잇각은 90도인 것을 특징으로 하는 연료 인젝터.3. The fuel injector of claim 2, wherein the angle of the conical tip is 110 degrees and the angle of the seat is 90 degrees. 제1항에 있어서, 상기 하나 이상의 메터링 오리피스는 연료 인젝터의 주길이방향 축선둘레에서 정반대로 마주보는 2개의 이러한 오리피스를 포함하고 있는 것을 특징으로 하는 연료 인젝터.2. The fuel injector of claim 1, wherein the at least one metering orifice comprises two such orifices opposite diametrically about a directional axis of the fuel injector. 제4항에 있어서, 상기 2개의 이러한 오리피스는 상기 오리피스 디스크내의 딤플내에 배치되어 있는 것을 특징으로 하는 연료 인젝터.5. A fuel injector according to claim 4, wherein the two orifices are disposed in dimples in the orifice disc. 제1항에 있어서, 상기 하나 이상의 메터링 오리피스는 상기 디스크의 정반대로 마주보는 절반내에 각각 배치되는 2개의 이러한 오리피스를 포함하고 있는 것을 특징으로 하는 연료 인젝터.2. The fuel injector of claim 1, wherein said at least one metering orifice comprises two such orifices each disposed within a diametrically opposed half of said disk. 연료를 내연기관 내로 분사하기 위하여, 몸체, 몸체를 통하여 연료가 분사되는 하나 이상의 메터링 오리피스를 가진 노즐에 이르는 연료통로, 연료통로내에서 몸체의 내부에 배치되는 밸브시트부재, 니들밸브요소의 첨단을 밸브시트에 안착 및 탈착시킴으로써 유동하게 하는 연료통로를 개폐하여 상기 하나 이상의 메터링 오리피스로의 유동을 허용하고 허용하지 않도록 밸브시트에 대해 왕복운동하는 니들밸브를 가진 전기 작동식 기구를 가지고 있는 연료 인젝터에 있어서, 니들밸브요소의 첨단은 선단부분과 말단부분을 가지고 있으며 상기 선단부분은 이러한 가상구를 통과하는 가상 이격된 평행면에 의해서 기하학적으로 형성된 가상구의 부위의 형상을 한 표면을 가지고 있으며, 상기 선단부분의 상기 표면은 상기 밸브요소가 왕복운동함에 따라 상기 시트에 안착 및 탈착하는 상기 첨단의 부분이며 상기 말단부분은 상기 선단부분의 상기 표면으로부터 접선방향으로 뻗어 있는 절두원추형 표면을 포함하고 있는 것을 특징으로 하는 연료 인젝터.A fuel passage leading to a nozzle having one or more metering orifices through which fuel is injected through the body, a valve seat member disposed within the body in the fuel passage, a tip of the needle valve element Which has an electrically operated mechanism having a needle valve reciprocating with respect to the valve seat so as to permit opening and closing of the fuel passage for allowing the fuel to flow into the at least one metering orifice, In the injector, the tip of the needle valve element has a tip portion and a distal portion, and the tip portion has a surface having a shape of a virtual sphere formed geometrically by virtually spaced parallel planes passing through the virtual sphere, The surface of the tip portion is in contact with the valve element when the valve element reciprocates The portion of the state-of-the-art for mounting and dismounting the seat the distal portion of the fuel injector, characterized in that comprises a frustoconical surface extending tangentially from the surface of the tip portion. 제7항에 있어서, 상기 절두원추형 표면은 말단부분의 전체가 실질적으로 완전한 원뿔로 되도록 원뿔첨단에서 종결되어 있는 것을 특징으로 하는 연료 인젝터.8. The fuel injector of claim 7, wherein the frusto-conical surface terminates at the tip of the cone so that the entirety of the distal portion is a substantially complete cone. 제8항에 있어서, 상기 원뿔 첨단의 사잇각은 110도이며 상기 시트의 사잇각은 90도인 것을 특징으로 하는 연료 인젝터.The fuel injector according to claim 8, wherein the angle of the conical tip is 110 degrees and the angle of the seat is 90 degrees. 제7항에 있어서, 상기 하나 이상의 메터링 오리피스는 연료 인젝터의 주길이방향 축선둘레에서 정반대로 마주보는 2개의 이러한 오리피스를 포함하고 있는 것을 특징으로 하는 연료 인젝터.8. The fuel injector of claim 7, wherein the at least one metering orifice comprises two such orifices oppositely opposite the circumferential axis of the fuel injector. 제10항에 있어서, 상기 2개의 이러한 오리피스는 상기 오리피스 디스크의 딤플내에 배치되어 있는 것을 특징으로 하는 연료 인젝터.11. The fuel injector of claim 10, wherein the two orifices are disposed in a dimple of the orifice disc. 제7항에 있어서, 상기 하나 이상의 메터링 오리피스는 상기 디스크의 정반대로 마주보는 절반내에 각각 배치되는 2개의 이러한 오리피스를 포함하고 있는 것을 특징으로 하는 연료 인젝터.8. The fuel injector of claim 7, wherein the at least one metering orifice comprises two such orifices respectively disposed in opposing halves of the disk. 제7항에 있어서, 상기 하나 이상의 메터링 오리피스는 상기 시트부재에 대하여 배치되는 분리오리시트는 디스크부재내에 수용되는 것을 특징으로 하는 연료 인젝터.8. The fuel injector of claim 7, wherein the at least one metering orifice is housed within the disc member. 제7항에 있어서, 상기 밸브는 니들밸브요소인 것을 특징으로 하는 연료 인젝터.8. The fuel injector of claim 7, wherein the valve is a needle valve element. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019970702510A 1994-10-17 1995-10-16 Fuel injector having reduced stream dispersion, especially of an off-axis injected stream KR100386218B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32397294A 1994-10-17 1994-10-17
US08/323,972 1994-10-17

Publications (2)

Publication Number Publication Date
KR970707382A true KR970707382A (en) 1997-12-01
KR100386218B1 KR100386218B1 (en) 2003-08-19

Family

ID=23261513

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970702510A KR100386218B1 (en) 1994-10-17 1995-10-16 Fuel injector having reduced stream dispersion, especially of an off-axis injected stream

Country Status (6)

Country Link
EP (1) EP0787253B1 (en)
JP (1) JP3625834B2 (en)
KR (1) KR100386218B1 (en)
CN (1) CN1168712A (en)
DE (1) DE69518432T2 (en)
WO (1) WO1996012104A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19545333A1 (en) * 1995-12-05 1997-06-12 Bosch Gmbh Robert Valve closing body and method and device for producing sealing seats on valve closing bodies
JP2001231203A (en) * 2000-02-10 2001-08-24 Mitsubishi Electric Corp Ac generator for vehicle
JP4025768B2 (en) 2004-09-27 2007-12-26 株式会社ケーヒン Fuel injection valve
EP1757803B1 (en) * 2005-08-24 2007-12-12 Delphi Technologies, Inc. Injection nozzle
CN103277225A (en) * 2013-06-07 2013-09-04 苏州柏德纳科技有限公司 Oil injection nozzle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2097638A5 (en) * 1970-07-16 1972-03-03 Kugelfischer G Schaefer & Co
BR8707711A (en) * 1986-05-31 1989-10-31 Bosch Gmbh Robert FUEL INJECTION VALVE
JPH0196463A (en) * 1987-10-05 1989-04-14 Aisan Ind Co Ltd Spherical valve piece for electromagnetic field injector and method for manufacturing same
DE4123692C2 (en) * 1991-07-17 1995-01-26 Bosch Gmbh Robert Fuel injector
JPH06207568A (en) * 1993-01-11 1994-07-26 Hitachi Ltd Fuel injection valve and manufacture of fuel injection valve

Also Published As

Publication number Publication date
EP0787253B1 (en) 2000-08-16
JP3625834B2 (en) 2005-03-02
DE69518432D1 (en) 2000-09-21
KR100386218B1 (en) 2003-08-19
EP0787253A1 (en) 1997-08-06
DE69518432T2 (en) 2001-03-15
CN1168712A (en) 1997-12-24
WO1996012104A1 (en) 1996-04-25
JPH10507507A (en) 1998-07-21

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