JPH09242643A - Fuel supplying device - Google Patents
Fuel supplying deviceInfo
- Publication number
- JPH09242643A JPH09242643A JP9044504A JP4450497A JPH09242643A JP H09242643 A JPH09242643 A JP H09242643A JP 9044504 A JP9044504 A JP 9044504A JP 4450497 A JP4450497 A JP 4450497A JP H09242643 A JPH09242643 A JP H09242643A
- Authority
- JP
- Japan
- Prior art keywords
- fuel supply
- cylinder head
- supply device
- ring
- ring flange
- 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
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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
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
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、燃料供給装置、特
に内燃機関のシリンダヘッドに挿入された燃料噴射弁の
ための燃料供給装置であって、シリンダヘッドにおける
貫通部を貫通する管片が設けられており、該管片がその
高圧孔の供給側の端部に高圧接続部を有していて、かつ
流出側においてシール面で、燃料噴射弁の弁保持体にお
ける供給部の円錐形の座面に対して軸方向で緊定されて
いる形式のものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel supply device, and more particularly to a fuel supply device for a fuel injection valve inserted in a cylinder head of an internal combustion engine, in which a pipe piece penetrating a penetrating portion of the cylinder head is provided. The pipe piece has a high-pressure connection at the supply-side end of the high-pressure hole, and a sealing surface on the outflow side, and a conical seat of the supply portion in the valve holder of the fuel injection valve. It is of a type that is axially constrained to the surface.
【０００２】[0002]
【従来の技術】ヨーロッパ特許第０５６９７２７号明細
書に基づいて公知のこのような形式の燃料供給装置は、
シリンダヘッドの貫通部に突入している管片を有してい
る。この場合管片はその高圧孔の供給側の端部に高圧接
続部を有しており、この高圧接続部には、例えば燃料噴
射弁の高圧源から外方に延びる高圧導管が接続可能であ
る。管片はその流出側の端部にシール面を有しており、
このシール面で、燃料噴射弁の弁保持体における円錐形
の座面に対して軸方向で緊定されている。2. Description of the Prior Art A fuel supply device of this type, known from EP 0 569 727, is
It has a pipe piece protruding into the penetrating portion of the cylinder head. In this case, the pipe piece has a high-pressure connection at the supply-side end of its high-pressure hole, to which a high-pressure conduit, for example extending outward from the high-pressure source of the fuel injection valve, can be connected. . The pipe piece has a sealing surface at the end on the outflow side,
This sealing surface is axially clamped against the conical seat surface of the valve holder of the fuel injection valve.
【０００３】この場合公知の管片は、袋ナットを用いて
燃料噴射弁に対して緊定されており、この袋ナットは、
管片を取り囲むようにしてシリンダヘッドの貫通孔にね
じ込まれている。管片の、シリンダヘッドの貫通孔から
軸方向に突出する供給側の端部には、別の袋ナットを用
いて、高圧導管が高圧接続部に接続されている。In this case, the known pipe piece is clamped against the fuel injection valve by means of a cap nut, which is
It is screwed into the through hole of the cylinder head so as to surround the pipe piece. A high pressure conduit is connected to the high pressure connection using another cap nut at the end of the pipe piece on the supply side that projects in the axial direction from the through hole of the cylinder head.
【０００４】この公知の燃料供給装置にはしかしながら
次のような欠点がある。すなわちこの場合、袋ナットを
用いた管片の固定形式は、シリンダヘッドにおける貫通
孔に対して及び燃料噴射弁における座面に対して管片が
軸方向のずれ又は角度的なずれを有している場合に、こ
のような許容誤差に対する大きな補償能力を有すること
ができない。さらに袋ナットは、シリンダヘッドにおけ
る貫通孔の大きな直径を必要とするが、このような大き
な直径もしくはスペースは今日の内燃機関においてはし
ばしば利用することができない。However, this known fuel supply device has the following drawbacks. That is, in this case, in the case of fixing the pipe piece using the cap nut, the pipe piece has an axial deviation or an angular deviation with respect to the through hole in the cylinder head and the seat surface of the fuel injection valve. , It is not possible to have a large compensation capacity for such tolerances. Furthermore, cap nuts require a large diameter through-hole in the cylinder head, which is often not available in today's internal combustion engines.
【０００５】[0005]
【発明が解決しようとする課題】ゆえに本発明の課題
は、冒頭に述べた形式の燃料供給装置を改良して、管片
において生じるおそれのある軸方向ずれや角度ずれを補
償するための大きな能力を有していて、しかも比較的小
さな取付けスペースしか必要としない燃料供給装置を提
供することである。SUMMARY OF THE INVENTION The object of the present invention is therefore to improve a fuel supply device of the type mentioned at the outset and to have a great ability to compensate for axial and angular deviations which may occur in the pipe pieces. It is an object of the present invention to provide a fuel supply apparatus having the above-mentioned features and requiring a relatively small mounting space.
【０００６】[0006]
【課題を解決するための手段】この課題を解決するため
に本発明の構成では、管片が固定フランジを用いて、弁
保持体における円錐形の座面に対して軸方向で緊定され
ている。In order to solve this problem, in the arrangement according to the invention the tube piece is axially clamped against the conical seat surface of the valve holder by means of a fixing flange. There is.
【０００７】[0007]
【発明の効果】本発明のように構成された燃料供給装置
には公知のものに比べて次のような利点、すなわち管片
が、貫通孔の外側に配置された固定フランジを用いて噴
射弁の円錐形の座面に対して軸方向で緊定されている、
という利点を有している。The fuel supply device constructed according to the present invention has the following advantages over known fuel supply devices: the pipe piece uses a fixed flange which is arranged outside the through hole. Axially clamped against the conical seat surface of
It has the advantage of
【０００８】有利にはリングフランジとして構成された
固定フランジは、シリンダヘッドにおける貫通孔の小さ
な直径を可能にし、この場合管片における必要な軸方向
の圧着力は、少なくとも２つの固定ねじによって確実に
保証されており、これらの固定ねじは貫通孔の半径方向
外側においてシリンダヘッドにねじ込まれている。この
場合全周にわたって均一に分配配置された複数の固定ね
じをリングフランジに設けることも可能である。The fixing flange, which is preferably embodied as a ring flange, allows a small diameter of the through hole in the cylinder head, the required axial crimping force on the tube being ensured by at least two fixing screws. Guaranteed, these fixing screws are screwed into the cylinder head radially outside the through hole. In this case, it is possible to provide the ring flange with a plurality of fixing screws which are evenly distributed over the entire circumference.
【０００９】さらに本発明のように構成されていること
によって、管片の長さ及びさらには貫通孔の長さを短縮
することが可能であり、このことによって、必要な構造
スペースはさらに減じられる。Furthermore, the configuration according to the invention makes it possible to reduce the length of the tube piece and also the length of the through hole, which further reduces the required structural space. .
【００１０】貫通孔及び／又は座面に対する管片の軸方
向ずれ又は角度ずれに対して、可能な限り大きな遊び補
償を可能にするために、本発明の別の有利な構成では、
リングフランジにおける接触面が円錐形であり、かつこ
の接触面と共働するリング肩部と管片における流出側の
シール面とが、球面状に、有利には球形に外側に向かっ
て湾曲されて構成されている。しかしながら択一的に、
座面もしくはリングフランジに球面状の面を設けること
も可能である。In order to allow as great a play compensation as possible for axial or angular deviations of the tube piece with respect to the through hole and / or the bearing surface, in another advantageous embodiment of the invention:
The contact surface on the ring flange is conical, and the ring shoulder cooperating with this contact surface and the sealing surface on the outflow side of the tube piece are curved spherically, preferably spherically, towards the outside. It is configured. However, alternatively,
It is also possible to provide the seating surface or the ring flange with a spherical surface.
【００１１】同時に、管片のシャフトと貫通孔の壁との
間及びリングフランジとシリンダヘッドとの間には、管
片の規定された軸方向ずれ及び／又は角度ずれを可能に
する遊びが設けられている。At the same time, a play is provided between the shaft of the tube piece and the wall of the through hole and between the ring flange and the cylinder head, which allows a defined axial and / or angular deviation of the tube piece. Has been.
【００１２】本発明による燃料供給装置はこの場合、内
燃機関のシリンダヘッドに挿入された燃料噴射弁への接
続のために特に適しているが、しかしながら択一的に、
例えば燃料ポンプのような類似の部材への接続のために
も使用することができる。The fuel supply device according to the invention is in this case particularly suitable for connection to a fuel injection valve inserted in the cylinder head of an internal combustion engine, but alternatively, however,
It can also be used for connection to similar components such as fuel pumps.
【００１３】[0013]
【発明の実施の形態】次に図面につき本発明の実施の形
態を説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１に示された本発明による燃料供給装置
の実施例では、内燃機関のシリンダヘッド１において公
知の燃料噴射弁が、内燃機関の燃焼室に開口する孔３に
挿入されており、図１には燃料噴射弁のうちの弁保持体
５の一部だけしか示されていない。燃料を供給するため
に噴射弁の弁保持体５は、半径方向孔７を有しており、
この半径方向孔７の流出開口は、円錐形の座面９を形成
している。この座面９に向かって方向付けられて、シリ
ンダヘッド１には、段付けされた貫通孔１１の形の貫通
部が配置されており、この貫通孔１１には管片１３が突
入している。この場合、管片１３の、座面９に隣接する
流出側の端部は、円錐形の座面９と共働するシール面１
４を形成しており、このシール面１４は球形に外方に向
かって湾曲している。管片１３は軸方向に貫通する高圧
孔１５を有しており、この高圧孔１５は、供給側の端部
区分１７に拡大部を備えており、この拡大部には、公知
の棒状の燃料フィルタ１９が挿入されている。In the embodiment of the fuel supply device according to the invention shown in FIG. 1, a known fuel injection valve in a cylinder head 1 of an internal combustion engine is inserted into a hole 3 opening in the combustion chamber of the internal combustion engine, In FIG. 1, only a part of the valve holder 5 of the fuel injection valve is shown. The valve holder 5 of the injection valve for supplying fuel has a radial bore 7
The outflow opening of this radial hole 7 forms a conical seat surface 9. Oriented towards this seating surface 9, the cylinder head 1 is provided with a penetrating part in the form of a stepped through hole 11, into which a pipe piece 13 projects. . In this case, the end of the tube piece 13 on the outflow side adjacent to the seating surface 9 has the sealing surface 1 cooperating with the conical seating surface 9.
4 is formed, and this sealing surface 14 is spherically curved outward. The pipe piece 13 has a high-pressure hole 15 penetrating in the axial direction, the high-pressure hole 15 being provided with an enlarged portion in the end section 17 on the supply side, and this enlarged portion has a known rod-shaped fuel. The filter 19 is inserted.
【００１５】供給側の端部区分１７の周面には、さらに
横断面拡大部によって形成されたリング段部２１が設け
られており、このリング段部２１は貫通孔１１から突出
するリング端面で、リング肩部２３を形成しており、こ
のリング肩部２３は球形に外側に向かって湾曲してい
る。このリング肩部２３には、リングフランジ２５が、
シリンダヘッド１側の端面２７に設けられたリング状の
接触面２９で係合作用しており、この接触面２９は円錐
形に構成されている。リングフランジ２５はこの場合、
接触面２９によって取り囲まれた軸方向に延びる中央の
貫通開口３１を有しており、この貫通開口３１を貫い
て、管片１３はその供給側における自由端部で突出して
いる。座面９に対して管片１３を軸方向で緊定するため
に、リングフランジ２５は、図２に示されているように
２つの受容孔３５を有しており、この両受容孔３５には
２つの固定ねじ３３が挿入されている。そしてこの場合
両固定ねじ３３はそのヘッドで、リングフランジ２５
の、シリンダヘッド１とは反対側の端面に接触してお
り、かつ自由な端部で、シリンダヘッド１の壁における
対応するねじ山３７にねじ込まれている。On the peripheral surface of the end section 17 on the supply side, there is further provided a ring step portion 21 formed by an enlarged cross section, and this ring step portion 21 is a ring end surface protruding from the through hole 11. , A ring shoulder portion 23 is formed, and the ring shoulder portion 23 is spherically curved outward. A ring flange 25 is attached to the ring shoulder 23.
A ring-shaped contact surface 29 provided on the end surface 27 on the cylinder head 1 side is engaged, and the contact surface 29 is formed in a conical shape. In this case, the ring flange 25
It has an axially extending central through opening 31 surrounded by a contact surface 29, through which the tube piece 13 projects at its free end on the feed side. In order to axially clamp the tube piece 13 against the seat surface 9, the ring flange 25 has two receiving holes 35, as shown in FIG. Has two fixing screws 33 inserted therein. In this case, both fixing screws 33 are the heads of the ring flange 25.
Contacting the end face of the cylinder head 1 facing away from the cylinder head 1 and screwing at its free end into the corresponding thread 37 on the wall of the cylinder head 1.
【００１６】管片１３の、リングフランジ２５から突出
する供給側の端部には、雄ねじ山３９が配置されてお
り、この雄ねじ山３９には袋ナット４１が螺合してお
り、この袋ナット４１は供給管４５の円錐形の接続片４
３を、高圧孔１５の流入部における円錐形の高圧接続面
４７に押し付けている。リング段部２１における周溝４
９に挿入されたシールリング５１は、その外側面で貫通
孔１１の壁に接触しており、そして管片１３と貫通孔１
１の壁との間に形成された漏れ油室５３を外方に向かっ
てシールする。A male screw thread 39 is arranged at the end of the pipe piece 13 on the supply side protruding from the ring flange 25, and a cap nut 41 is screwed into the male screw thread 39. 41 is a conical connecting piece 4 of the supply pipe 45
3 is pressed against the conical high-pressure connection surface 47 at the inlet of the high-pressure hole 15. Circumferential groove 4 in the ring step portion 21
The seal ring 51 inserted in 9 is in contact with the wall of the through hole 11 on its outer surface, and the tube piece 13 and the through hole 1
The leaking oil chamber 53 formed between the wall 1 and the wall 1 is sealed outward.
【００１７】上に述べたように構成されていると、座面
９と管片１３のシール面１４との間における球面状の接
触面及び管片１３におけるリング肩部２３とリングフラ
ンジ２５における接触面２９との間における球面状の接
触面によって、管片１３の軸方向ずれもしくは角度ずれ
に基づく遊びを十分に補償することができる。そしてこ
のことは、貫通孔１１における管片１３の遊びや、リン
グフランジ２５の端面２７とシリンダヘッド壁との間に
おける遊びによって、さらに助成される。With the construction described above, the spherical contact surface between the seat surface 9 and the sealing surface 14 of the tube piece 13 and the contact between the ring shoulder 23 and the ring flange 25 of the tube piece 13. The spherical contact surface with the surface 29 makes it possible to adequately compensate for play due to axial or angular deviations of the tube piece 13. This is further aided by the play of the pipe piece 13 in the through hole 11 and the play between the end face 27 of the ring flange 25 and the cylinder head wall.
【図１】内燃機関のシリンダヘッドに挿入された供給装
置の１実施例を示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a supply device inserted in a cylinder head of an internal combustion engine.
【図２】図１に示されたリングフランジを簡略化して示
す平面図である。FIG. 2 is a plan view showing the ring flange shown in FIG. 1 in a simplified manner.
１ シリンダヘッド、 ３ 孔、 ５ 弁保持体、 ７
半径方向孔、 ９座面、 １１ 貫通孔、 １３ 管
片、 １４ シール面、 １５ 高圧孔、１７ 端部区
分、 １９ 燃料フィルタ、 ２１ リング段部、 ２
３ リング肩部、 ２５ リングフランジ、 ２７ 端
面、 ２９ 接触面、 ３１ 貫通開口、 ３３ 固定
ねじ、 ３５ 受容孔、 ３７ ねじ山、 ３９ 雄ね
じ山、 ４１ 袋ナット、 ４３ 接続片、 ４５ 供
給管、 ４７ 高圧接続面、４９ 周溝、 ５１ シー
ルリング、 ５３ 漏れ油室1 cylinder head, 3 holes, 5 valve holder, 7
Radial hole, 9 seat surface, 11 through hole, 13 tube piece, 14 sealing surface, 15 high pressure hole, 17 end section, 19 fuel filter, 21 ring step, 2
3 ring shoulder, 25 ring flange, 27 end face, 29 contact surface, 31 through opening, 33 fixing screw, 35 receiving hole, 37 screw thread, 39 male screw thread, 41 cap nut, 43 connecting piece, 45 supply pipe, 47 high pressure Connection surface, 49 circumferential groove, 51 seal ring, 53 leaking oil chamber
Claims (8)
ヘッド（１）に挿入された燃料噴射弁のための燃料供給
装置であって、シリンダヘッド（１）における貫通部
（１１）を貫通する管片（１３）が設けられており、該
管片（１３）がその高圧孔（１５）の供給側の端部に高
圧接続部（４７）を有していて、かつ流出側においてシ
ール面（１４）で、燃料噴射弁の弁保持体（５）におけ
る供給部の円錐形の座面（９）に対して軸方向で緊定さ
れている形式のものにおいて、管片（１３）が固定フラ
ンジを用いて、弁保持体（５）における円錐形の座面
（９）に対して軸方向で緊定されていることを特徴とす
る燃料供給装置。1. A fuel supply device, in particular a fuel supply device for a fuel injection valve inserted in a cylinder head (1) of an internal combustion engine, the pipe penetrating a penetrating part (11) of the cylinder head (1). A piece (13) is provided which has a high pressure connection (47) at the end of the high pressure hole (15) on the supply side and which has a sealing surface (14) on the outflow side. ), The pipe piece (13) is fixed to the valve seat (5) of the fuel injection valve in the axial direction with respect to the conical seat surface (9) of the supply part. A fuel supply device characterized in that it is axially clamped against the conical seat surface (9) of the valve holder (5).
として構成されている、請求項１記載の燃料供給装置。2. The fixed flange is a ring flange (25).
The fuel supply device according to claim 1, wherein the fuel supply device is configured as.
径の増大によって形成されたリング肩部（２３）を有し
ており、該リング肩部（２３）に固定フランジが係合作
用している、請求項１記載の燃料供給装置。3. The tube piece (13) has a ring shoulder (23) formed by an increase in diameter at its supply-side end, the ring flange (23) being engaged by a fixing flange. The fuel supply system according to claim 1, wherein the fuel supply system operates in combination.
ッド（１）側の端面（２７）にリング状の接触面（２
９）を有しており、該接触面（２９）が、リングフラン
ジ（２５）における管片（１３）のための軸方向の貫通
開口（３１）に隣接しており、かつ接触面（２９）でリ
ングフランジ（２５）が管片（１３）のリング肩部（２
３）に接触している、請求項２又は３記載の燃料供給装
置。4. The ring flange (25) has a ring-shaped contact surface (2) on the end surface (27) on the cylinder head (1) side.
9), said contact surface (29) being adjacent to the axial through opening (31) for the tube piece (13) in the ring flange (25) and the contact surface (29). The ring flange (25) is attached to the ring shoulder (2) of the tube piece (13).
The fuel supply device according to claim 2 or 3, which is in contact with 3).
３）が、球面状に、有利には球表面の一部として外方に
向かって湾曲されていて、かつこのリング肩部（２３）
と共働する、リングフランジ（２５）における接触面
（２９）が円錐形に構成されている、請求項４記載の燃
料供給装置。5. A ring shoulder (2) in the tube piece (13).
3) is curved spherically, preferably outwardly as part of the spherical surface, and this ring shoulder (23)
5. The fuel supply device according to claim 4, wherein the contact surface (29) on the ring flange (25) cooperating with the conical surface.
円錐形の座面（９）と共働するシール面（１４）が、球
面状に、有利には球表面の一部として外方に向かって湾
曲されている、請求項１記載の燃料供給装置。6. At the outflow-side end of the tube piece (13),
2. The fuel supply device according to claim 1, wherein the sealing surface (14) cooperating with the conical seat surface (9) is curved outwardly, preferably outwardly as part of a spherical surface. .
（３３）を受容するために少なくとも２つの受容孔（３
５）を有しており、固定ねじ（３３）がその自由端部
で、シリンダヘッド（１）の対応するねじ山（３７）に
ねじ込まれている、請求項２記載の燃料供給装置。7. The ring flange (25) has at least two receiving holes (3) for receiving the fixing screws (33).
5) Fuel supply device according to claim 2, characterized in that it has a fixing screw (33) and at its free end it is screwed into the corresponding thread (37) of the cylinder head (1).
ッド（１）側の端面（２７）と、シリンダヘッド（１）
の壁との間に、規定された間隔が設けられている、請求
項２記載の燃料供給装置。8. An end surface (27) of the ring flange (25) on the cylinder head (1) side, and a cylinder head (1).
3. The fuel supply device according to claim 2, wherein a defined distance is provided between the fuel supply device and the wall of the fuel supply device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19608574A DE19608574A1 (en) | 1996-03-06 | 1996-03-06 | Fuel supply device |
| DE19608574.8 | 1996-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09242643A true JPH09242643A (en) | 1997-09-16 |
Family
ID=7787334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9044504A Pending JPH09242643A (en) | 1996-03-06 | 1997-02-28 | Fuel supplying device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH09242643A (en) |
| KR (1) | KR100480399B1 (en) |
| DE (1) | DE19608574A1 (en) |
| FR (1) | FR2745851B1 (en) |
| GB (1) | GB2310891B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014502697A (en) * | 2011-01-21 | 2014-02-03 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Fuel injector with improved high pressure connection |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19608572A1 (en) * | 1996-03-06 | 1997-09-11 | Bosch Gmbh Robert | Fuel supply device |
| GB9727421D0 (en) | 1997-12-30 | 1998-02-25 | Perkins Ltd | Apparatus and method for connecting a fuel pressure tube to a fuel injector of an internal combustion engine |
| DE19807711A1 (en) * | 1998-02-24 | 1999-09-09 | Man Nutzfahrzeuge Ag | Device for dismantling pressure pipes on ice injection units of internal combustion engines |
| GB9816264D0 (en) | 1998-07-24 | 1998-09-23 | Lucas Ind Plc | Connector |
| DE10115325A1 (en) † | 2001-03-28 | 2002-10-17 | Bosch Gmbh Robert | Fuel injector, for an IC motor, has a clamp system to hold the injector housing at the base body, with a convex curvature in a ball segment shape at the clamping surface for an increased sealing action |
| US6840268B2 (en) * | 2002-05-23 | 2005-01-11 | Detroit Diesel Corporation | High-pressure connector having an integrated flow limiter and filter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB362773A (en) * | 1930-03-04 | 1931-12-10 | Swiss Locomotive & Machine Works | Improvements in fuel injection valves for internal combustion engines |
| GB2100334B (en) * | 1982-04-20 | 1984-11-28 | Lucas Ind Plc | Clamping device |
| DE9206268U1 (en) * | 1992-05-09 | 1993-09-09 | Robert Bosch Gmbh, 70469 Stuttgart | Fuel supply device for an injection nozzle |
| DE4239173C1 (en) * | 1992-11-21 | 1993-09-02 | Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De | Cylinder-head for fuel-injection engine - has pressure pipe passing through clamping screw and with union at protruding end for injection pipe |
| JP3295562B2 (en) * | 1994-11-15 | 2002-06-24 | ヤンマーディーゼル株式会社 | Diesel engine fuel supply mechanism |
-
1996
- 1996-03-06 DE DE19608574A patent/DE19608574A1/en not_active Withdrawn
-
1997
- 1997-02-10 GB GB9702682A patent/GB2310891B/en not_active Expired - Fee Related
- 1997-02-28 JP JP9044504A patent/JPH09242643A/en active Pending
- 1997-03-05 KR KR1019970007230A patent/KR100480399B1/en not_active IP Right Cessation
- 1997-03-05 FR FR9702612A patent/FR2745851B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014502697A (en) * | 2011-01-21 | 2014-02-03 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Fuel injector with improved high pressure connection |
| US10954906B2 (en) | 2011-01-21 | 2021-03-23 | Robert Bosch Gmbh | Fuel injector having an improved high-pressure connection |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9702682D0 (en) | 1997-04-02 |
| GB2310891A (en) | 1997-09-10 |
| FR2745851A1 (en) | 1997-09-12 |
| GB2310891B (en) | 1998-06-03 |
| KR100480399B1 (en) | 2005-07-28 |
| KR970066066A (en) | 1997-10-13 |
| FR2745851B1 (en) | 2001-09-07 |
| DE19608574A1 (en) | 1997-09-11 |
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