DE3014066C2 - Spring clip for securing the axial position of a fuel injection nozzle when it is connected to a fuel rail of an internal combustion engine - Google Patents
Spring clip for securing the axial position of a fuel injection nozzle when it is connected to a fuel rail of an internal combustion engineInfo
- Publication number
- DE3014066C2 DE3014066C2 DE3014066A DE3014066A DE3014066C2 DE 3014066 C2 DE3014066 C2 DE 3014066C2 DE 3014066 A DE3014066 A DE 3014066A DE 3014066 A DE3014066 A DE 3014066A DE 3014066 C2 DE3014066 C2 DE 3014066C2
- Authority
- DE
- Germany
- Prior art keywords
- spring clip
- connection
- legs
- injection nozzle
- fuel
- 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
Links
- 238000002347 injection Methods 0.000 title claims description 15
- 239000007924 injection Substances 0.000 title claims description 15
- 239000000446 fuel Substances 0.000 title claims description 14
- 238000002485 combustion reaction Methods 0.000 title claims 4
- 238000009434 installation Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 5
- 239000007921 spray Substances 0.000 claims 2
- 210000003608 fece Anatomy 0.000 claims 1
- 239000010871 livestock manure Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
-
- 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
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
hier im Hinblick darauf, daß beide Leitungen mit ihrem Bund in die Durchbrechungen eingreifen, eine größere axiale Erstreckung der Federklammern erforderlich. Weitgehend die gleiche vorbekannte Bauart und den gleichen Zweck offenbart die Federklammer für die Verbindung nach der US-PS 34 79 069. In beiden Fällen ist im übrigen kein Hinweis auf die Verbindung einer Kraftstoffeinspritzdüse mit einer Kraftstoffverteilerleitung gegeben.here with a view to the fact that both lines engage with their collar in the openings, a larger one axial extension of the spring clips required. Largely the same previously known design and the The same purpose is disclosed by the spring clip for the connection according to US Pat. No. 3,479,069. In both cases is not an indication of the connection of a fuel injector to a fuel rail given.
Ferner ist aus der FR-PS 14 80 240 eine C-förmige, federnde Kunststoffklammer bekannt, die mit stirnseitigen eingebogenen lappenartigen Rändern in Nuten zweier miteinander zu verbindender Rohrstücke eingreift Zwischen den lappenartigen Rändern ist außerdem eine Buchse festgelegt, die unter Zwischenschaltung von zwei Dichtringen den Spalt zwischen den beiden Rohrstücken überbrückt. Auch bei dieser Rohrverbindung ist kein Hinweis auf die Verbindung einer Kraftstoffeinspritzdüse mit einer KraftstoPVerteilerleitung entnehmbar.Furthermore, from FR-PS 14 80 240 a C-shaped, resilient plastic clip is known, which with frontal engages bent lobe-like edges in grooves of two pipe pieces to be connected to one another In addition, a socket is defined between the flap-like edges, which is interposed bridges the gap between the two pipe sections by two sealing rings. Even with this pipe connection does not indicate the connection of a fuel injection nozzle to a fuel rail removable.
Die Erfindung ist im folgenden anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher erläutert Es zeigtThe invention is described in more detail below with reference to an exemplary embodiment shown in the drawing explained it shows
F i g. 1 einen Querschnitt durch den Anschlußstutzen einer mit einer Kraftstoffverteilerleitung verbundenen und durch eine Federklammer axial gesicherten Einspritzdüse; F i g. 1 shows a cross section through the connection piece of a connected to a fuel rail and injector axially secured by a spring clip;
F i g. 2 einen Schnitt nach der Linie H-II in F i g. 1; und F i g. 3 eine Seitenansicht der Federklammer.F i g. 2 shows a section along the line H-II in FIG. 1; and F i g. 3 is a side view of the spring clip.
Bei dem in der Zeichnung dargestellten Ausführungsbeispiel ist mit 1 die Anschlußbuchse einer Kraftstoffverteilerleitung bezeichnet, in die der Anschlußstutzen 2 einer Einspritzdüse 3 unter Zwischenschaltung einer elastischen Dichtung 5 eingesetzt ist Die Anschlußbuchse I ist mit der lediglich angedeuteten Wandung 4 der Kraftstoffverteilerleitung verlötetIn the embodiment shown in the drawing, 1 is the connector socket of a fuel rail denotes, in which the connection piece 2 of an injection nozzle 3 with the interposition of a elastic seal 5 is inserted soldered to the fuel rail
Im dargestellten Beispiel dient die Federklammer 6, die aus einem Biechstanzteil ausgebildet ist und (in der Zeichenebene der Fig. 1) eine im wesentlichen U-förmige Grundform hat, zur Lagesicherung von Anschlußbuchse 1 und Anschlußstutzen 2 in beiden axialen Richtungen. Von dem Steg 7 der U-förmigen Federklammer 6 erstrecken sich die Schenkel 8 rechtwinkelig zur Längsachse der Einspritzdüse 3.In the example shown, the spring clip 6, which is formed from a punched bending part and (in the The plane of the drawing in FIG. 1) is essentially U-shaped Has basic shape, to secure the position of connection socket 1 and connection piece 2 in both axial directions. From the web 7 of the U-shaped spring clip 6, the legs 8 extend at right angles to Longitudinal axis of the injection nozzle 3.
Jeder Schenkel 8 weist eine (insbesondere in F i g. 3 gut erkennbare) Durchbrechung 9 auf, in die ein radialer Vorsprung 10 am Umfang der Anschlußbuchse 1 einrastbar ist.Each leg 8 has an opening 9 (particularly clearly visible in FIG. 3) into which a radial Projection 10 on the circumference of the connection socket 1 can be latched.
Bei dem dargestellten Ausführungsbeispiel ist der radiale Vorsprung 10 ein über den Umfang 11 des Anschlußstutzens 1 vorstehender Bund. Der radiale Vorsprung kann aber auch die seitliche Begrenzung einer Nut bilden, die, insbesondere wenn sie eine Uinfangsnut ist, verhältnismäßig einfach durch Einstechen herstellbar ist, wodurch der Raumbedarf durchmessermäßig noch günstiger gestaltet werden kann.In the illustrated embodiment, the radial projection 10 is a circumference 11 of the connecting piece 1 above covenant. The radial projection can also be the lateral limitation of a Form groove which, especially if it is a Uinfangsnut, can be produced relatively easily by piercing is, whereby the space requirement can be made even more favorable in terms of diameter.
Die Durchbrechung 9 hat gemäß Fig.2 die Form eines schmalen Rechtecks, das sich in Längsrichtung des Schenkels 8 erstreckt.The opening 9 has the shape according to FIG a narrow rectangle which extends in the longitudinal direction of the leg 8.
Zur Verrastung mit dem Anschlußstutzen 2 der Ein-For locking with the connecting piece 2 of the input
ο üü ucSScfiο üü ucSScfi
Zur radialen Fixierung der Federklammer 7 (zusätzlich zu der Fixierung durch die Durchbrechung 9 in Verbindung mit dem als Bund 10 ausgebildeten Vorsprung) weisen die Lappen 12 einen kreisbogenförmig konkav verlaufenden Abschnitt 14 auf. Der Radius des Kreisbogens entspricht dabei dem Radius der Ringnut 13 im Nutgrund. Zum leichteren Aufstecken der Federklammer sind die Lappen 12 mit Anlaufschrägen 15 vergehen, wozu ferner die äußeren Kanten der Ringnut 13 angefast sein können.For the radial fixation of the spring clip 7 (in addition to the fixation through the opening 9 in Connection with the projection formed as a collar 10), the tabs 12 have a circular arc shape concave section 14. The radius of the circular arc corresponds to the radius of the annular groove 13 in the groove base. To make it easier to attach the spring clip, the tabs 12 with bevels 15 are removed, For this purpose, the outer edges of the annular groove 13 can also be chamfered.
Wie man insbesondere in F i g. 1 erkennt, ist der die beiden Schenkel 8 verbindende Steg 7 der Federklammer 6 nach außen gekrümmt, wodurch etwas weniger Einbauraum beansprucht wird und trotzdem noch Raum zum Ansetzen eines Werkzeugs, etwa eines Schraubenziehers, verbleibt, um die Verbindung gegebenenfalls auch sehr einfach wieder lösen zu können.As can be seen in particular in FIG. 1 recognizes, is the one the web 7 of the spring clip 6 connecting the two legs 8 is curved outward, which means somewhat less Installation space is claimed and still space for attaching a tool, such as one Screwdriver is left to make the connection if necessary also very easy to solve again.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
schlußbuchse 1 abgewandten Rand rechtwinkelig einwärts gebogene Lappen 12 vorhanden, die eine Schulter 13' an der Einspritzdüse 3 hintergreifen. Der Vorsprung wird im vorliegenden Beispiel durch die seitliche Wandung einer Ringnut 13 gebildet, so daß die Lappen 12 in diese Nut eingreifen und somit die Einspritzdüse 3 axial in beiden Richtungen festlegen.Terminal socket 1 facing away from the edge at right angles inwardly curved tabs 12 present, which have a shoulder 13 'reach behind the injection nozzle 3. In the present example, the projection is created by the side wall an annular groove 13 is formed so that the tabs 12 engage in this groove and thus the injection nozzle 3 axially set in both directions.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3014066A DE3014066C2 (en) | 1980-04-11 | 1980-04-11 | Spring clip for securing the axial position of a fuel injection nozzle when it is connected to a fuel rail of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3014066A DE3014066C2 (en) | 1980-04-11 | 1980-04-11 | Spring clip for securing the axial position of a fuel injection nozzle when it is connected to a fuel rail of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3014066A1 DE3014066A1 (en) | 1981-10-15 |
| DE3014066C2 true DE3014066C2 (en) | 1986-12-04 |
Family
ID=6099823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3014066A Expired DE3014066C2 (en) | 1980-04-11 | 1980-04-11 | Spring clip for securing the axial position of a fuel injection nozzle when it is connected to a fuel rail of an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3014066C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568075A1 (en) * | 1992-04-29 | 1993-11-03 | ARMATURENFABRIK HERMANN VOSS GMBH & CO. | Plug-in connector for hoses or pipe conduits especially for fuel conduits of combustion engines |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3146889C2 (en) * | 1981-11-26 | 1986-04-30 | Bayerische Motoren Werke AG, 8000 München | Fuel injection assembly for internal combustion engines |
| DE3223556A1 (en) * | 1982-06-24 | 1983-12-29 | Robert Bosch Gmbh, 7000 Stuttgart | FLUID LINE |
| US4475516A (en) * | 1983-05-02 | 1984-10-09 | General Motors Corporation | Fuel rail assembly and clip |
| FR2606089B1 (en) * | 1986-10-31 | 1988-12-09 | Gerard De Bruyn | METHOD AND PLANT FOR MANUFACTURING A FUEL INJECTION RAMP AND FUEL INJECTION RAMP MANUFACTURED ACCORDING TO THE PROCESS |
| DE3542430A1 (en) * | 1985-11-30 | 1987-06-04 | Bosch Gmbh Robert | Spacer plate |
| JPH0622140Y2 (en) * | 1988-02-15 | 1994-06-08 | 臼井国際産業株式会社 | Fuel delivery pipe |
| US4993390A (en) * | 1988-05-27 | 1991-02-19 | Mitsubishi Jidosha Kogyo Akbushiki Kaisha | Injector positioning device |
| DE3918410A1 (en) * | 1989-06-06 | 1990-12-13 | Bosch Gmbh Robert | FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES |
| DE4000044A1 (en) * | 1990-01-03 | 1991-07-04 | Bosch Gmbh Robert | ELECTRICALLY CONTROLLED FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES, IN PARTICULAR PUMPEDUESE |
| US5301647A (en) * | 1993-06-14 | 1994-04-12 | Siemens Automotive L.P. | Fuel injector attachment clip |
| EP0758969B1 (en) * | 1994-05-05 | 1998-07-22 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Rack and pinion power steering gear, in particular for motor vehicles |
| JP2000153183A (en) * | 1998-11-17 | 2000-06-06 | Hakko Kk | Attachable/detachable nozzle for hot air |
| AT3081U1 (en) * | 1999-04-07 | 1999-09-27 | Hoerbiger Hydraulik | PRESSURE SYSTEM, PRESSURE CYLINDER AND CLAMP |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1480240A (en) * | 1966-03-28 | 1967-05-12 | Beaudouin Ets | Watertight connection for fluid lines |
| US3479069A (en) * | 1967-10-20 | 1969-11-18 | Amseco Corp | Connector assembly |
| DE1945025A1 (en) * | 1969-09-05 | 1971-03-11 | Exxon Research Engineering Co | Liquid polymers for use in coating or encapsulation - applications |
| DE2926490A1 (en) * | 1979-06-30 | 1981-02-05 | Bosch Gmbh Robert | FUEL INJECTION SYSTEM |
-
1980
- 1980-04-11 DE DE3014066A patent/DE3014066C2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0568075A1 (en) * | 1992-04-29 | 1993-11-03 | ARMATURENFABRIK HERMANN VOSS GMBH & CO. | Plug-in connector for hoses or pipe conduits especially for fuel conduits of combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3014066A1 (en) | 1981-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8125 | Change of the main classification |
Ipc: F02M 61/14 |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8365 | Fully valid after opposition proceedings |