JPS5867972U - internal combustion engine fuel injection valve - Google Patents

internal combustion engine fuel injection valve

Info

Publication number
JPS5867972U
JPS5867972U JP14727282U JP14727282U JPS5867972U JP S5867972 U JPS5867972 U JP S5867972U JP 14727282 U JP14727282 U JP 14727282U JP 14727282 U JP14727282 U JP 14727282U JP S5867972 U JPS5867972 U JP S5867972U
Authority
JP
Japan
Prior art keywords
valve
internal combustion
fuel injection
combustion engine
valve 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
JP14727282U
Other languages
Japanese (ja)
Inventor
パウル・フユ−スナ−
カ−ル・ホ−フマン
イヴアン・コマロフ
クルト・ザイフエルト
デイ−トリヒ・トラハテ
ヴイルヘルム・フオ−ゲル
ハンス−イエルク・フオ−クトマン
Original Assignee
ロ−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
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 ロ−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 filed Critical ロ−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
Publication of JPS5867972U publication Critical patent/JPS5867972U/en
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
    • 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
    • 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
    • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift

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

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

図面は本考案による、ジーゼル機関用燃料噴射弁の一実
施例の縦断面図である。 １０・・・ノズル本体、１２・・・ねじ部分、１４・・
・ノズルホルダ、１６・・・縦孔、１８・・・孔区分、
２０・・・弁座、２２・・・孔区分、２４・・・端面、
２６・・・端面、３０・・・弁ニードル、３２・・・ヘ
ッド、３４・・・シャフト（弁ニードルの案内区分）、
３６・・・シャフト付　。 加部、３８・・・密封円錐、４０・・・区分、４２・・
・鍔、４４・・・縦溝、４６・・・環状室、４８・・・
環状室、５０・・・室、５２・・・孔、５４・・・燃料
接続部、５６・・・センタ孔、５８・・・端部、６０・
・・横孔、６２・・・肩、６４・・・ばね受け、６６・
・・円板、６８・・・側方スリット、７０・・・切欠き
、７？・・・巻条、７３・・・ねじ山区分、７４・・・
ポリアミド部体。The drawing is a longitudinal sectional view of an embodiment of a fuel injection valve for a diesel engine according to the present invention. 10... Nozzle body, 12... Threaded part, 14...
・Nozzle holder, 16... Vertical hole, 18... Hole division,
20... Valve seat, 22... Hole division, 24... End face,
26... End face, 30... Valve needle, 32... Head, 34... Shaft (guide section of valve needle),
36...With shaft. Part, 38...Sealing cone, 40...Division, 42...
- Tsuba, 44... Vertical groove, 46... Annular chamber, 48...
Annular chamber, 50... Chamber, 52... Hole, 54... Fuel connection portion, 56... Center hole, 58... End portion, 60...
・・Horizontal hole, 62・・Shoulder, 64・Spring receiver, 66・
...Disc, 68...Side slit, 70...Notch, 7? ... winding, 73... thread classification, 74...
Polyamide body.

Claims (1)

【実用新案登録請求の範囲】 １　内燃機関の燃料噴射弁であって、ノズル本体を有し
、該ノズル本体中の縦孔内に弁座が形成されており、か
つ縦孔内に弁ニードルが移動可能に配置されており、該
弁ニードルが開放方向−で燃料圧力によりかつ閉鎖方向
でコイルばね部材により負荷されるようになっており、
上記コイルばねの巻条直径が弁ニードルのシャフト直径
にほぼ相応しており、かつ上記コイルばね部材かばね受
けもしくは押圧片を介在さ妊ることなしに直接に弁ニー
ドルに作用している形式のものにおいて、弁ニードル３
０が中空のシャフト付加部３６を有しており、該シャフ
ト付加部がその外周の螺旋状切欠き７０により、弁ニー
ドル３０に一体に結合されたコイルばね部材として形成
されていることを特徴とする、内燃機関の燃料噴射弁。 ２　弁ニードルが開放行程のさいに燃料の流れ方向に運
動せしめられ、かつ弁ニードル３０の、コイルばね部材
を形成するシャフト付加部３６がその自由端部には螺旋
状切欠き７０を有しておらず、かつノズル本体１０の対
応する肩２６に支持されるための環状の肩６２を有して
いる実用新案登録請求の範囲第１墳記載の内燃機関の燃
料噴射弁。 ３　シャフト付加部３６が自由端部に組立用層、殊にね
じ山区分７３を有している実用新案登録請求の範囲第２
項記載の内燃機関の燃料噴射弁。 ４　弁ニードルが開放行程のさい燃料流れ方向に運動せ
しめられ、かつ弁ニードル３０がその弁密封面３８と、
螺旋状切欠き７０の、弁密封面側の始端との間で、ノズ
ル本体１０の縦孔１６内で案内されている実用新案登録
請求の範囲第１項記載の内燃機関の燃料噴射弁。 ５　弁ニードル３０の案内区分３４が少なくとも１つの
縦溝４４を有しており、該縦溝が、案内区分３４の上流
側に位置する、燃料接続部５４に接続した、縦孔１６内
の環状室４６を弁開口部２０．３８に接続している実用
新案登録請求の範囲第４項記載の内燃機関の燃料噴射弁
。 ６　ノズル本体１０の縦孔１６中の環状室４６が、弁ニ
ードル３０の、コイルばね部材を形成するシャフト付加
部３６の全長にわたって、延在している実用新案登録請
求の範囲第５項記載の内燃機関の燃料噴射弁。 ７　弁ニードル３０のシャフト付加部３６中の孔５６が
弁ニードルの案内区分３４のところまで達しており、か
っこ）で少なくとも１つの横孔６０を介して、縦孔１６
中の環状室４６に接続している実用新案登録請求の範囲
第５項又は第６項のうちいずれか１項記載の内燃機関の
燃料噴射弁。 ８　弁ニードルシャフトの螺旋状の切欠き７０に軟弾性
材料より成る部体７４が充填されており、該軟弾性材料
が切欠き７０によって形成されたばね巻条７２のフラン
クに付着している実用新ノー＼−−、へ 案登録請求の範囲第１項記載の内燃機関の燃料噴射弁。 ９　螺旋状切欠き７０に充填される部体７４が、有利に
は窒素気泡が封入されているポリテトラフルオルエチレ
ンより成る実用新案登録請求の範囲第８項記載の内燃機
関の燃料噴射弁。 １０　　上記部体７４が発泡されたポリアミドから形成
されている実用新案登録請求の範囲第８項記載の内燃機
関の燃料噴射弁。[Claims for Utility Model Registration] 1. A fuel injection valve for an internal combustion engine, comprising a nozzle body, a valve seat formed in a vertical hole in the nozzle body, and a valve needle in the vertical hole. movably arranged such that the valve needle is loaded by fuel pressure in the opening direction and by a coil spring member in the closing direction;
The coil spring has a winding diameter approximately corresponding to the shaft diameter of the valve needle, and acts directly on the valve needle without intervening the coil spring member, spring receiver, or pressing piece. , valve needle 3
0 has a hollow shaft extension 36 which is formed as a coiled spring element integrally connected to the valve needle 30 by means of a helical cutout 70 on its outer periphery. Fuel injection valves for internal combustion engines. 2. The valve needle is moved in the direction of fuel flow during the opening stroke, and the shaft extension 36 of the valve needle 30, which forms a coiled spring element, has a helical recess 70 at its free end. A fuel injection valve for an internal combustion engine according to claim 1, which has an annular shoulder 62 for being supported by a corresponding shoulder 26 of a nozzle body 10. 3. Utility model registration claim 2, in which the shaft attachment part 36 has an assembly layer, in particular a threaded section 73, at its free end.
A fuel injection valve for an internal combustion engine as described in 2. 4 the valve needle is moved in the direction of fuel flow during the opening stroke, and the valve needle 30 is in contact with its valve sealing surface 38;
The fuel injection valve for an internal combustion engine according to claim 1, wherein the spiral notch 70 is guided within the vertical hole 16 of the nozzle body 10 between the starting end on the valve sealing surface side. 5. The guide section 34 of the valve needle 30 has at least one longitudinal groove 44, which longitudinal groove has an annular shape in the longitudinal bore 16 connected to the fuel connection 54 located upstream of the guide section 34. Fuel injection valve for an internal combustion engine according to claim 4, in which the chamber 46 is connected to the valve opening 20.38. 6 The annular chamber 46 in the vertical hole 16 of the nozzle body 10 extends over the entire length of the shaft attachment part 36 of the valve needle 30 forming a coil spring member. Fuel injection valve for internal combustion engine. 7 The bore 56 in the shaft attachment 36 of the valve needle 30 reaches as far as the guide section 34 of the valve needle and connects the longitudinal bore 16 via at least one transverse bore 60 with parentheses).
A fuel injection valve for an internal combustion engine according to claim 5 or 6, which is connected to an annular chamber 46 therein. 8 A utility novelty device in which a helical notch 70 of the valve needle shaft is filled with a member 74 made of a soft elastic material, and the soft elastic material adheres to the flank of the spring winding 72 formed by the notch 70. A fuel injection valve for an internal combustion engine according to claim 1. 9. A fuel injection valve for an internal combustion engine according to claim 8, wherein the member 74 filling the helical cutout 70 is made of polytetrafluoroethylene, preferably filled with nitrogen bubbles. 10. The fuel injection valve for an internal combustion engine according to claim 8, wherein the member 74 is made of foamed polyamide.
JP14727282U 1981-10-02 1982-09-30 internal combustion engine fuel injection valve Pending JPS5867972U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813139170 DE3139170A1 (en) 1981-10-02 1981-10-02 Fuel injection nozzle for internal combustion engines
DE31391702 1981-10-02

Publications (1)

Publication Number Publication Date
JPS5867972U true JPS5867972U (en) 1983-05-09

Family

ID=6143208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14727282U Pending JPS5867972U (en) 1981-10-02 1982-09-30 internal combustion engine fuel injection valve

Country Status (2)

Country Link
JP (1) JPS5867972U (en)
DE (1) DE3139170A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9217085D0 (en) * 1992-08-12 1992-09-23 Lucas Ind Plc Fuel system
GB9301793D0 (en) * 1993-01-29 1993-03-17 Lucas Ind Plc Fuel injection nozzle
GB9919423D0 (en) * 1999-08-18 1999-10-20 Lucas France Valve
DE102020215276A1 (en) * 2020-12-03 2022-06-23 Mahle International Gmbh Valve body for an expansion valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231222A (en) * 1975-07-21 1977-03-09 Johnson Lloyd E Fuel injection valve for internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231222A (en) * 1975-07-21 1977-03-09 Johnson Lloyd E Fuel injection valve for internal combustion engine

Also Published As

Publication number Publication date
DE3139170A1 (en) 1983-04-21

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