JPH0176557U - - Google Patents

Info

Publication number
JPH0176557U
JPH0176557U JP1988143514U JP14351488U JPH0176557U JP H0176557 U JPH0176557 U JP H0176557U JP 1988143514 U JP1988143514 U JP 1988143514U JP 14351488 U JP14351488 U JP 14351488U JP H0176557 U JPH0176557 U JP H0176557U
Authority
JP
Japan
Prior art keywords
valve
fuel
flange
nozzle body
needle
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.)
Pending
Application number
JP1988143514U
Other languages
Japanese (ja)
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 filed Critical
Publication of JPH0176557U publication Critical patent/JPH0176557U/ja
Pending legal-status Critical Current

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
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/10—Other injectors with multiple-part delivery, e.g. with vibrating 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

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

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
、第２図及び第３図は弁ニードル及び弁ブツシユ
の順次に続く３つの作動位置における噴射ノズル
の燃焼室側端部範囲を著しく拡大して示した図で
ある。 １０……ノズル体、１２……弁ニードル、１４
……つば付きナツト、１６……ノズルホルダ、１
８……室、２０……閉鎖ばね、２２……横穴、２
４……センタ穴、２４ａ，２４ｂ，２４ｃ……穴
区分、２８……シール円錐体、３０……弁座、３
２……端面、３４……弁フランジ、３６……弁座
、３８……シール円錐面、４０，４２……出口間
隙、４４……横穴、４８……スワール、５０……
環状室、５２……円錐面。 The drawings show an embodiment of the invention, and FIGS. 1, 2 and 3 show significantly the combustion chamber end area of the injection nozzle in three successive operating positions of the valve needle and valve bush. It is an enlarged view. 10... Nozzle body, 12... Valve needle, 14
... Nut with flange, 16 ... Nozzle holder, 1
8... Chamber, 20... Closing spring, 22... Horizontal hole, 2
4... Center hole, 24a, 24b, 24c... Hole division, 28... Seal cone, 30... Valve seat, 3
2... End face, 34... Valve flange, 36... Valve seat, 38... Seal conical surface, 40, 42... Outlet gap, 44... Horizontal hole, 48... Swirl, 50...
Annular chamber, 52...conical surface.

Claims (1)

【実用新案登録請求の範囲】 １ 燃料噴射ノズルであつて、 (イ) ノズル体を有し、 (ロ) 外側へ開く弁ニードルを有し、該弁ニー
ドルはノズル体中の、燃料供給にも役立つセンタ
穴内に支承されていてかつ燃料の流れに対して逆
向きに面しているシール円錐体を有し、このシー
ル円錐体には、センタ穴の燃焼室側の開口を取囲
んでいる、ノズル体にある弁座が対向しており、 (ハ) 良好な燃料霧化を目的とする、開放位置
における弁ニードルの振動を惹起させる手段を有
している形式のものにおいて、 (ニ) ノズル体１０のセンタ穴２４内に、弁ニ
ードル１２を取囲む弁ブツシユ２６が移動可能に
支承されており、 (ホ) 弁ブツシユ２６が燃焼室側に弁フランジ
３４を有し、該弁フランジ３４が弁ニードル１２
のシール円錐体２８とノズル体１０にある弁座３
０との間に係合しており、 (ヘ) 弁フランジ３４が弁ニードル１２のため
の弁座３６を形成し、上記弁ニードルのシール円
錐体２８が上記弁フランジ３４と共に、燃料のた
めの第１の出口間隙４０を形成しており、 (ト) 弁フランジ３４が、ノズル体１０にある
弁座３０のための、有利にはやはり円錐形のシー
ル面３８を有し、ノズル体にある上記弁座が弁フ
ランジ３４と共に、燃料のための第２の出口間隙
４２を形成しており、 〓(チ)チ〓 上記の両出口間隙４０，４２を制
限している、弁フランジ３４の移動面５２，３８
が互いに異なる大きさを有していて、燃料によつ
て小さい方の移動面３８に作用する移動力が、燃
料によつて大きい方の移動面５２に作用する反対
の移動力を、大きい方の移動面５２によつて制限
される出口間隙４０が開き該出口間隙４０中の燃
料の流れに圧力低下が生じたときに、浚駕する。 ことを特徴とする、燃料噴射ノズル。 ２ ノズル体１０及び弁フランジ３４にある両弁
座３０，３６が環状のエツジとして構成されてお
り、かつ両出口間隙４０，４２がそれぞれ、弁座
３６若しくは３０に向つて先細の楔形の横断面形
状を有していることを特徴とする、請求項１記載
の燃料噴射ノズル。 ３ 弁フランジ３４にある弁座３６がノズル体１
０にある弁座３０よりも大きな直径を有している
ことを特徴とする、請求項２記載の噴射ノズル。 ４ 両方の出口間隙４０，４２が弁ブツシユ２６
中の、弁ブツシユ全周に亘つて分配された横穴４
４を介して、互いに接続されていることを特徴と
する、請求項１から３までのいずれか１項記載の
噴射ノズル。 ５ 弁ブツシユ２６がノズル体１０のセンタ穴２
４ｃ内に、かつ弁ニードル１２の燃焼室側の端部
区分が弁ブツシユ２６内に、案内されていること
を特徴とする、請求項４記載の噴射ノズル。 ６ 弁ニードル１２が環状つば４６を以つて弁ブ
ツシユ２６内で案されており、上記環状つば４６
がその外周面に、燃料を通すためのスワール溝４
８を有していることを特徴とする、請求項５記載
の噴射ノズル。[Scope of Claim for Utility Model Registration] 1. A fuel injection nozzle, which (a) has a nozzle body, and (b) has a valve needle that opens outward, and the valve needle also has a fuel supply in the nozzle body. a sealing cone which is seated in the useful center bore and faces away from the flow of fuel, the sealing cone surrounding the opening of the center bore towards the combustion chamber; In a type in which the valve seats in the nozzle body face each other, and (c) there is a means for inducing vibration of the valve needle in the open position for the purpose of good fuel atomization, (d) the nozzle A valve bush 26 surrounding the valve needle 12 is movably supported in the center hole 24 of the body 10, and (e) the valve bush 26 has a valve flange 34 on the combustion chamber side, and the valve flange 34 Valve needle 12
seal cone 28 and valve seat 3 in the nozzle body 10
0, and (f) the valve flange 34 forms a valve seat 36 for the valve needle 12, the sealing cone 28 of said valve needle together with said valve flange 34 forming a valve seat 36 for the fuel. (g) the valve flange 34 has an advantageously also conical sealing surface 38 for the valve seat 30 on the nozzle body 10; The valve seat together with the valve flange 34 forms a second outlet gap 42 for the fuel; Surfaces 52, 38
have different magnitudes, and the moving force acting on the smaller moving surface 38 due to the fuel is equal to the opposite moving force acting on the larger moving surface 52 due to the fuel. Dredge occurs when the outlet gap 40 limited by the moving surface 52 opens and a pressure drop occurs in the flow of fuel in the outlet gap 40 . A fuel injection nozzle characterized by: 2. Both valve seats 30, 36 on the nozzle body 10 and on the valve flange 34 are configured as annular edges, and the two outlet gaps 40, 42 each have a wedge-shaped cross section tapering towards the valve seat 36 or 30. The fuel injection nozzle according to claim 1, characterized in that it has a shape. 3 The valve seat 36 on the valve flange 34 is connected to the nozzle body 1
3. Injection nozzle according to claim 2, characterized in that it has a larger diameter than the valve seat (30) at zero. 4 Both outlet gaps 40, 42 are connected to the valve bush 26
Inside, horizontal holes 4 distributed around the entire circumference of the valve bushing.
4. Injection nozzles according to claim 1, characterized in that the injection nozzles are connected to each other via 4. 5 The valve bush 26 is located in the center hole 2 of the nozzle body 10.
5. Injection nozzle according to claim 4, characterized in that the end section of the valve needle (12) facing the combustion chamber is guided in the valve bush (26). 6. The valve needle 12 is guided in the valve bushing 26 with an annular collar 46, which
has a swirl groove 4 on its outer circumferential surface for passing fuel.
6. The injection nozzle according to claim 5, characterized in that it has a diameter of 8.
JP1988143514U 1987-11-07 1988-11-04 Pending JPH0176557U (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873737896 DE3737896A1 (en) 1987-11-07 1987-11-07 Fuel injection nozzle, in particular for internal combustion engines with direct injection

Publications (1)

Publication Number Publication Date
JPH0176557U true JPH0176557U (en) 1989-05-24

Family

ID=6340047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988143514U Pending JPH0176557U (en) 1987-11-07 1988-11-04

Country Status (2)

Country Link
JP (1) JPH0176557U (en)
DE (1) DE3737896A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114658580A (en) * 2022-03-15 2022-06-24 上海工程技术大学 Air-entraining jet nozzle with swirl groove on head guide

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3719459A1 (en) * 1987-06-11 1988-12-29 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
US5685492A (en) * 1990-01-26 1997-11-11 Orbital Engine Company (Australia) Pty. Limited Fuel injector nozzles
ATE131578T1 (en) * 1990-01-26 1995-12-15 Orbital Eng Pty FUEL INJECTOR
DE4310154A1 (en) * 1993-03-29 1994-10-06 Bosch Gmbh Robert Fuel injection nozzle for internal combustion engines
DE4322313A1 (en) * 1993-07-05 1995-01-12 Kanis Paul Gerhard Dipl Ing Vibrating-plunger nozzle
DE10039544A1 (en) * 2000-08-12 2002-04-04 Daimler Chrysler Ag Injection valve for injection of fuel under high pressure into combustion chamber of IC engine has in region of nozzle needle, twist transmitter designed as needle guide for nozzle needle in lower region above injection opening
FR2913465B1 (en) * 2007-03-07 2009-11-20 Peugeot Citroen Automobiles Sa FUEL INJECTOR AND METHOD FOR OPERATING THE INJECTOR.
US9683739B2 (en) * 2009-11-09 2017-06-20 Woodward, Inc. Variable-area fuel injector with improved circumferential spray uniformity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114658580A (en) * 2022-03-15 2022-06-24 上海工程技术大学 Air-entraining jet nozzle with swirl groove on head guide

Also Published As

Publication number Publication date
DE3737896A1 (en) 1989-05-18

Similar Documents

Publication Publication Date Title
JP3527126B2 (en) Fuel injection device for internal combustion engine
US5570841A (en) Multiple disk swirl atomizer for fuel injector
US1952816A (en) Fuel injector
EP0008500B1 (en) Fuel injection valve
JPH01247761A (en) Fuel injection valve
JPH0176557U (en)
JPS6238478U (en)
US4825906A (en) Angle pattern control valve
JPH0626416A (en) Fuel injection nozzle for pre-injection and main injection
US4341351A (en) Outwardly opening poppet pintle nozzle
US2712962A (en) Double deflecting spray nozzle
JPH01143492U (en)
ITBO940223A1 (en) HIGH ATOMIZATION INJECTOR
US5577666A (en) Air assist atomizer for a split stream fuel injector
US5058810A (en) Fuel metering and atomizing valve for an internal combustion engine fuel supply device
JP2006509139A (en) Fuel injection valve
JPH07507613A (en) Fuel injection nozzle for internal combustion engines
JPH0163772U (en)
JPH09509717A (en) Fuel injection valve used for internal combustion engine
US3156414A (en) Fuel injection nozzle
JPH03275973A (en) Solenoid fuel injection valve
JPH05256228A (en) Fuel injection nozzle for internal combustion engine
JPH11501382A (en) Fuel injection valve for internal combustion engine
GB2207463A (en) I.C. engine petrol injector
JPH04101059A (en) Assist air type fuel injector