JP2851425B2 - Fuel injection nozzle with leaking oil connection - Google Patents
Fuel injection nozzle with leaking oil connectionInfo
- Publication number
- JP2851425B2 JP2851425B2 JP3502187A JP50218791A JP2851425B2 JP 2851425 B2 JP2851425 B2 JP 2851425B2 JP 3502187 A JP3502187 A JP 3502187A JP 50218791 A JP50218791 A JP 50218791A JP 2851425 B2 JP2851425 B2 JP 2851425B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection nozzle
- bolt
- oil connection
- leaking oil
- 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.)
- Expired - Lifetime
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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
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
【発明の詳細な説明】 技術分野 本発明は、請求項１の上位概念に基く漏洩油接続部を
備えた燃料噴射ノズルに関する。Description: TECHNICAL FIELD The invention relates to a fuel injection nozzle with a leaking oil connection according to the preamble of claim 1.
背景技術 燃料噴射ノズルのノズル保持体の漏洩油戻り案内部に
対しては、ねじ軸内の軸方向の盲孔及び頭近傍の横方向
孔を備えた頭付ボルトが主に使用されており、接続ニッ
プルを備えた受容リングは、該頭付ボルトによりノズル
保持体に密に圧着される。この種の中空ボルトは、丸削
り、孔あけ、バリ取り熱処理といった多くの加工工程に
よって鋼材から製作される。BACKGROUND ART For a leaked oil return guide portion of a nozzle holder of a fuel injection nozzle, a headed bolt having an axial blind hole in a screw shaft and a lateral hole near a head is mainly used, The receiving ring with the connecting nipple is pressed tightly onto the nozzle holder by the headed bolt. This type of hollow bolt is manufactured from a steel material through many processing steps such as rounding, drilling, and deburring heat treatment.
本発明の課題は、燃料噴射ノズルの漏洩油接続部のた
めの、受容リングを接続するためのボルトを改良して、
その製作を簡単かつ廉値に行うことができるようにする
ことにある。An object of the present invention is to improve a bolt for connecting a receiving ring for a leaking oil connection of a fuel injection nozzle,
It is an object of the present invention to make the production simple and inexpensive.
発明の開示 請求項１の特徴を備えた本発明の燃料噴射ノズルの漏
洩油接続部は、受容リングへ漏洩油を貫流せしめるボル
トを冷間変形によって製作することができるという利点
を有している。このようなほぼ冷間変形だけによる製作
法の採用によって、同時に冷間加工による硬化によりそ
の熱処理を省くこともできる。DISCLOSURE OF THE INVENTION The leaking oil connection of the fuel injection nozzle according to the invention with the features of claim 1 has the advantage that bolts which allow the leaking oil to flow into the receiving ring can be produced by cold deformation. . By adopting such a manufacturing method based on only cold deformation, it is possible to simultaneously eliminate the heat treatment by hardening by cold working.
漏洩油接続部のための充分な流れ横断面積を得るため
にボルトのねじ軸内に、長手方向軸線に対し平行して又
は傾斜して延びている多数の長手方向溝が配置されてい
る場合は特に有利である。長手方向溝は、有利にはねじ
軸の面取部として形成されていても宜い。If a number of longitudinal grooves are arranged in the screw axis of the bolt, parallel or oblique to the longitudinal axis, in order to obtain a sufficient flow cross-section for the leaking oil connection It is particularly advantageous. The longitudinal groove may advantageously be formed as a chamfer of the screw shaft.
図面の簡単な説明 本発明の実施例を図面に図示し、次にこれを詳細に説
明する。その際図１は、燃料噴射ノズルの漏洩油接続部
を備えたノズル保持体の部分の、部分的に切断した縦断
面図、図２は漏洩油接続部の頭付ボルトの第１実施例の
側面図、図３は図２の頭付きボルトの平面図、図４は頭
付ボルトの第２実施例の側面図、図５は図４の頭付ボル
トの平面図、を夫々図示している。BRIEF DESCRIPTION OF THE DRAWINGS An embodiment of the invention is illustrated in the drawings and will now be described in detail. FIG. 1 is a longitudinal sectional view of a part of a nozzle holder provided with a leaked oil connection of a fuel injection nozzle, and FIG. 2 is a first embodiment of a head bolt of the leaked oil connection. FIG. 3 is a side view of the headed bolt of FIG. 2, FIG. 3 is a side view of the second embodiment of the headed bolt, and FIG. 5 is a plan view of the headed bolt of FIG. .
実施例 燃料噴射ノズルのノズル保持体１は、漏洩油を戻すた
めにねじ孔３内に開口している通路２を有している。こ
のねじ孔３に漏洩油接続部５が接続されており、該接続
部５は、ねじ軸11及び頭12を備えた頭付ボルト10と受容
リング14とを有している。内方のリング溝15及び接続ニ
ップル16を備えている受容リング14は、ボルト10のねじ
軸11に跨っており、かつ２つの封止リング17の間挿下で
ボルト10の頭12によってノズル保持体１に対して圧着さ
れている。ボルト10は、漏洩油を、ノズル保持体１の通
路２から受容リング14のリング溝15内及び接続ニップル
16内に戻すために、そのねじ軸11の外周部に複数の、有
利には４つの長手方向溝20を有しており、その領域では
ねじが中断されている。長手方向溝20は、軸11の自由端
面からボルト10の頭12の近くにまで延びている。Embodiment A nozzle holder 1 of a fuel injection nozzle has a passage 2 opened in a screw hole 3 for returning leaked oil. A leaking oil connection 5 is connected to the screw hole 3, and the connection 5 has a headed bolt 10 having a screw shaft 11 and a head 12, and a receiving ring 14. A receiving ring 14 having an inner ring groove 15 and a connecting nipple 16 straddles the screw shaft 11 of the bolt 10 and holds the nozzle by the head 12 of the bolt 10 under insertion between two sealing rings 17. It is crimped against the body 1. The bolts 10 leak oil from the passage 2 of the nozzle holder 1 into the ring groove 15 of the receiving ring 14 and the connection nipple.
In order to be returned into 16, a plurality, preferably four, longitudinal grooves 20 are provided on the outer periphery of the screw shaft 11, in which region the screw is interrupted. The longitudinal groove 20 extends from the free end face of the shaft 11 to near the head 12 of the bolt 10.
図２及び図３に基く実施例にあっては、長手方向溝20
がＵ字状の横断面を備えた溝21として形成されている。
溝21の深さはボルト10の軸11内のねじ山の高さよりも大
きいため、ノズル保持体１内のねじ孔３のねじの背面と
軸11内の溝21の底部との間に漏洩油を貫通せしめるため
の通路が形成される。軸11内のねじは圧延によって製作
され、また溝12は冷間変形によって製作可能である。In the embodiment according to FIGS.
Are formed as grooves 21 having a U-shaped cross section.
Since the depth of the groove 21 is greater than the height of the thread in the shaft 11 of the bolt 10, the oil leaking between the bottom of the groove 21 in the shaft 11 and the back of the screw in the screw hole 3 in the nozzle holder 1 A passage is formed to allow the air to pass therethrough. The screw in the shaft 11 can be manufactured by rolling, and the groove 12 can be manufactured by cold deformation.
図４及び図５に基く実施例にあっては、面取部22の形
状をした２つの溝20がボルト10の軸11上に形成されてい
る。ねじ部及び面取部22は冷却衝撃によって形成され、
その際ダイス分割部は面取部22の中心線内を延びてい
る。In the embodiment according to FIGS. 4 and 5, two grooves 20 in the form of chamfers 22 are formed on the shaft 11 of the bolt 10. The screw portion and the chamfered portion 22 are formed by cooling impact,
At this time, the die dividing portion extends within the center line of the chamfered portion 22.
更に補足的に述べれば、溝はボルトのねじ軸11の軸線
に対し平行に延びることができるだけでなく、その軸線
に対し傾斜して乃至はスパイラル状に延びることも可能
である。In addition, the grooves can extend not only parallel to the axis of the screw shaft 11 of the bolt, but can also extend obliquely or spirally with respect to that axis.
フロントページの続き (72)発明者 アスレンダー，ペーター ドイツ連邦共和国 Ｄ―8600 バムベル ク オットーシュトラーセ ３ (56)参考文献 特開 平２−218859（ＪＰ，Ａ) 特開 昭49−111032（ＪＰ，Ａ) 特開 平３−43659（ＪＰ，Ａ) 実開 昭55−123666（ＪＰ，Ｕ) 実開 昭63−158580（ＪＰ，Ｕ) 実開 昭63−168265（ＪＰ，Ｕ) 米国特許4315603（ＵＳ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F02M 55/00 - 55/02 F02M 61/16 F02M 61/10 F02M 61/00 - 61/08Continuation of the front page (72) Inventor Aslender, Peter D-8600 Bamberg Ottostraße 3 (56) References JP-A-2-218859 (JP, A) JP-A-49-1111032 (JP, A JP-A-3-43659 (JP, A) JP-A-55-123666 (JP, U) JP-A-63-158580 (JP, U) JP-A-63-168265 (JP, U) US Pat. , A) (58) Fields investigated (Int. Cl. 6 , DB name) F02M 55/00-55/02 F02M 61/16 F02M 61/10 F02M 61/00-61/08
Claims (2)
って、ねじ山付き軸（11）の外周部に延びる溝（22）と
して構成された貫通通路を備えた、ノズル保持体のねじ
孔内に螺入された頭付ボルト（10）と、頭付ボルトの頭
とノズル保持体との間に張着されている受容リング（1
4）とを備えている形式のものにおいて、前記溝がボル
ト（10）のねじ山付き軸（11）に形成された軸平行な扁
平部（22）として構成されていることを特徴とする、漏
洩油接続部を備えた燃料噴射ノズル。A fuel injection nozzle with a leaking oil connection, the nozzle of a nozzle holder having a through passage formed as a groove (22) extending around the outer periphery of a threaded shaft (11). A head bolt (10) screwed into the hole, and a receiving ring (1) attached between the head of the head bolt and the nozzle holder.
4) wherein the groove is configured as an axially parallel flat part (22) formed on the threaded shaft (11) of the bolt (10). Fuel injection nozzle with leaking oil connection.
付き軸（11）に直径方向で互いに向き合って配置されて
いる、請求項１記載の燃料噴射ノズル。2. The fuel injection nozzle according to claim 1, wherein the flats (22) are arranged diametrically opposite one another on a threaded shaft (11) of a screw (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9001194U DE9001194U1 (en) | 1990-02-03 | 1990-02-03 | Fuel injection nozzle with leak oil connection |
| DE9001194.5U | 1990-02-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05504389A JPH05504389A (en) | 1993-07-08 |
| JP2851425B2 true JP2851425B2 (en) | 1999-01-27 |
Family
ID=6850625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3502187A Expired - Lifetime JP2851425B2 (en) | 1990-02-03 | 1991-01-17 | Fuel injection nozzle with leaking oil connection |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0513020B1 (en) |
| JP (1) | JP2851425B2 (en) |
| BR (1) | BR9105979A (en) |
| DE (2) | DE9001194U1 (en) |
| WO (1) | WO1991011606A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10201353B4 (en) * | 2002-01-16 | 2004-04-08 | Daimlerchrysler Ag | High-pressure connection for a fuel injection system for internal combustion engines |
| CN108940626A (en) * | 2018-09-05 | 2018-12-07 | 红塔烟草(集团)有限责任公司 | A kind of anti-overflow leakage device of nozzle |
| CN111830410B (en) * | 2020-07-24 | 2022-11-29 | 上海外高桥造船有限公司 | Oil head test fixing and oil collecting device of diesel generating set |
| USD1023736S1 (en) | 2022-10-27 | 2024-04-23 | Fleece Performance Engineering, Inc. | Bolt |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1521875A (en) * | 1977-03-08 | 1978-08-16 | Zuev A | Fluid conduit apparatus and a method of making same |
| JPS5752376Y2 (en) * | 1979-02-26 | 1982-11-13 | ||
| DE8104261U1 (en) * | 1981-02-17 | 1981-08-06 | Robert Bosch Gmbh, 7000 Stuttgart | LIQUID-COOLED FUEL INJECTION NOZZLE |
-
1990
- 1990-02-03 DE DE9001194U patent/DE9001194U1/en not_active Expired - Lifetime
-
1991
- 1991-01-17 EP EP91901696A patent/EP0513020B1/en not_active Expired - Lifetime
- 1991-01-17 DE DE59102948T patent/DE59102948D1/en not_active Expired - Lifetime
- 1991-01-17 JP JP3502187A patent/JP2851425B2/en not_active Expired - Lifetime
- 1991-01-17 WO PCT/DE1991/000030 patent/WO1991011606A1/en active IP Right Grant
- 1991-01-17 BR BR919105979A patent/BR9105979A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05504389A (en) | 1993-07-08 |
| DE9001194U1 (en) | 1991-05-29 |
| EP0513020A1 (en) | 1992-11-19 |
| DE59102948D1 (en) | 1994-10-20 |
| EP0513020B1 (en) | 1994-09-14 |
| BR9105979A (en) | 1992-11-10 |
| WO1991011606A1 (en) | 1991-08-08 |
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