DE10239939A1 - Fuel system for IC engines has separate neighboring fuel feed and fuel outlet pipes, opening into connection blocks associated with injection pump elements - Google Patents
Fuel system for IC engines has separate neighboring fuel feed and fuel outlet pipes, opening into connection blocks associated with injection pump elements Download PDFInfo
- Publication number
- DE10239939A1 DE10239939A1 DE2002139939 DE10239939A DE10239939A1 DE 10239939 A1 DE10239939 A1 DE 10239939A1 DE 2002139939 DE2002139939 DE 2002139939 DE 10239939 A DE10239939 A DE 10239939A DE 10239939 A1 DE10239939 A1 DE 10239939A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- injection pump
- sleeve
- fuel system
- pump element
- 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.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 238000002347 injection Methods 0.000 title claims abstract description 27
- 239000007924 injection Substances 0.000 title claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- 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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common 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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/803—Fuel injection apparatus manufacture, repair or assembly using clamp elements and fastening means; e.g. bolts or screws
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft ein Kraftstoffsystem einer Brennkraftmaschine mit einem Kurbelgehäuse, in dem eine Kurbelwelle drehbar gelagert ist, an der je einen Kolben tragende Pleuel angelenkt sind, wobei die Kolben in von Zylinderköpfen abgedeckten Zylindern bewegbar sind, denen Einspritzventile zugeordnet sind, die in den Zylinderköpfen angeordnet sind, wobei jedes Einspritzventil über eine Einspritzleitung mit einem von einer Nockenwelle angetriebenen und dem Zylinder zugeordneten Einspritzpumpenelement verbunden ist und wobei das Einspritzpumpenelement mit einer Kraftstoffzufuhrleitung und einer Kraftstoffabfuhrleitung verbunden ist.The invention relates to a fuel system an internal combustion engine with a crankcase in which a crankshaft is rotatably mounted on the connecting rods each carrying a piston are, the pistons in cylinders covered by cylinder heads Are movable, which are associated with injectors, which in the cylinder heads are arranged, with each injection valve via an injection line one driven by a camshaft and assigned to the cylinder Injection pump element is connected and wherein the injection pump element with a fuel supply line and a fuel discharge line connected is.
Eine derartige Brennkraftmaschine
ist aus der
Der Erfindung liegt die Aufgabe zugrunde, das Kraftstoffsystem zu vereinfachen.The invention has for its object that Simplify fuel system.
Diese Aufgabe wird dadurch gelöst, dass die Kraftstoffzufuhrleitung und die Kraftstoffabfuhrleitung als separate, nebeneinander verlaufende Leitungen ausgebildet sind, die in einen jeweils einem Einspritzpumpenelement zugeordneten Anschlussblock einmünden, der Kraftstoffübertrittsverbindungen zu der dem Einspritzpumpenelement zugewandten Seitenwand aufweist. Diese Ausbildung hat den Vorteil, dass das Kraftstoffversorgungsleitungssystem als komplettes separates Bauteil gefertigt werden kann, wobei bezüglich der Leitungen auf Standardteile zugegriffen werden kann und die Anschlussblöcke als leicht und kostengünstig zu fertigende Teile ausgebildet sind. Die Leitungen können beispielsweise durch Schweißen oder Löten mit den Anschlussblöcken verbunden werden. Vorteilhaft sind die Leitungen zwischen den Anschlussblöcken s-bogenförmig gebogen ausgebildet. Dadurch ist es möglich, kleine Fertigungstoleranzen bezüglich des Abstandes zwischen zwei Anschlussblöcken oder zwischen zwei Einspritzpumpenelementen durch Strecken oder Stauchen der Leitungen auszugleichen. Die Leitungen können aber auch geradlinig zwischen den Anschlussblöcken verlaufend ausgebildet sein, wenn vorgegebene Fertigungstoleranzen sicher eingehalten werden.This task is solved in that the fuel supply line and the fuel discharge line as separate lines running side by side are formed, into a connection block assigned to an injection pump element open out, the fuel transfer connections to the side wall facing the injection pump element. This training has the advantage that the fuel supply line system can be manufactured as a complete separate component, with respect to the Lines on standard parts can be accessed and the connection blocks as light and inexpensive parts to be manufactured are formed. The lines can, for example by welding or soldering connected to the terminal blocks become. The lines between the terminal blocks are advantageously bent in an S-shape educated. This makes it possible small manufacturing tolerances the distance between two connection blocks or between two injection pump elements compensate by stretching or compressing the lines. The lines can but also designed to run in a straight line between the connection blocks be when specified manufacturing tolerances are safely adhered to.
In Weiterbildung der Erfindung ist eine Befestigungsöffnung mittig zwischen den Kraftstoffübertrittsverbindungen in dem Anschlussblock angeordnet. Dadurch kann eine zentrale Befestigungsschraube verwendet werden, die zudem gegebenenfalls als Drehpunkt für die Anschlussblöcke für den zuvor geschilderten Längenausgleich dient.In development of the invention a mounting hole in the middle between the fuel transfer connections arranged in the connection block. This allows a central fastening screw are used, which may also be used as a fulcrum for the connection blocks for the previous described length compensation serves.
In weiterer Ausgestaltung ist der Anschlussblock an einer das Einspritzpumpenelement aufnehmenden Hülse befestigt. Prinzipiell kann der Anschlussblock selbstverständlich auch direkt an dem Einspritzpumpenelement befestigt werden.In a further embodiment, the Connection block on a receiving the injection pump element Sleeve attached. In principle, the connection block can of course also be attached directly to the injection pump element be attached.
In Weiterbildung der Erfindung ist zwischen der Hülse und dem Anschlussblock eine Dichtung eingefügt und die Dichtung weist in weiterer Ausgestaltung eine endseitige Abkantung auf, die auf der von dem Kurbelgehäuse wegweisenden Stirnseite der Hülse bzw. des Einspritzpumpenelements aufliegt. Diese Ausbildung trägt zu einer weiteren Vereinfachung der Montage bei, da die Dichtungen zunächst auf die Hülsen aufgelegt werden, wobei hier zu berücksichtigen ist, dass die Hülsen unter einem Winkel von zwischen 10 und 80° zur Mittelsenkrechten der insbesondere als V-Motor ausgebildeten Brennkraftmaschine geneigt angeordnet sind. Somit liegen die Dichtungen auf einer schrägen Fläche auf und sind gegen ein Abrutschen durch die Abkantung gesichert.In development of the invention between the sleeve and the connection block inserted a seal and the seal has in a further embodiment has an end-sided bend on the of the crankcase groundbreaking face of the sleeve or the injection pump element rests. This training contributes to one to further simplify assembly, since the seals are initially on the sleeves be placed, taking into account here that the sleeves under an angle of between 10 and 80 ° to the normal to the middle in particular designed as a V-engine internal inclined are. This means that the seals rest on an inclined surface and are against one another Slip secured by the fold.
In Weiterbildung der Erfindung weist die Dichtung auf der der Abkantung gegenüberliegenden Seite eine Sicke auf, die in eine in die Hülse eingelassene Ausnehmung eingreift. Dadurch ist die Dichtung auch seitlich fixiert und die Leitungen mit den Anschlussblöcken können problemlos montiert werden. Die auch nach der Montage sichtbare Abkantung ermöglicht im Übrigen eine Kontrolle, ob eine Dichtung montiert ist.In a further development of the invention the seal on the side opposite the fold is a bead on that in a in the sleeve recessed recess engages. This is also the seal laterally fixed and the cables with the connection blocks can be easily to be assembled. The bevel, which is also visible after assembly, also enables a Check whether a seal is installed.
Weitere Vorteile sind der Zeichnungsbeschreibung zu entnehmen, in der ein in den Figuren dargestelltes Ausführungsbeispiel der Erfindung näher beschrieben ist.Further advantages are the description of the drawing can be seen in the an embodiment shown in the figures the invention closer is described.
Es zeigen:Show it:
Die Hülsen
In diese Hülsen werden Einspritzpumpenelemente
eingesetzt, die mit einem Hochdruckauslass- und gegebenenfalls einem
Magnetsteuerventil aus dem oberen Teil der Hülse hinausragen, während ein Rollenstößel zumindest
mit einem unteren Teil aus dem Hülsenteil
Zur Montage des vorgefertigten Leitungssystems
werden auf die Hülsen
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002139939 DE10239939A1 (en) | 2002-08-30 | 2002-08-30 | Fuel system for IC engines has separate neighboring fuel feed and fuel outlet pipes, opening into connection blocks associated with injection pump elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002139939 DE10239939A1 (en) | 2002-08-30 | 2002-08-30 | Fuel system for IC engines has separate neighboring fuel feed and fuel outlet pipes, opening into connection blocks associated with injection pump elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10239939A1 true DE10239939A1 (en) | 2004-03-04 |
Family
ID=31197514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2002139939 Ceased DE10239939A1 (en) | 2002-08-30 | 2002-08-30 | Fuel system for IC engines has separate neighboring fuel feed and fuel outlet pipes, opening into connection blocks associated with injection pump elements |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10239939A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007113038A1 (en) * | 2006-03-30 | 2007-10-11 | Robert Bosch Gmbh | Fuel injection device for a multi-cylinder fuel internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3643270A1 (en) * | 1986-12-18 | 1988-06-23 | Kloeckner Humboldt Deutz Ag | Low-pressure fuel line system for internal combustion engines with multipoint fuel injection pumps |
| DE4340885A1 (en) * | 1993-12-01 | 1995-06-08 | Kloeckner Humboldt Deutz Ag | V-shaped internal combustion engine |
-
2002
- 2002-08-30 DE DE2002139939 patent/DE10239939A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3643270A1 (en) * | 1986-12-18 | 1988-06-23 | Kloeckner Humboldt Deutz Ag | Low-pressure fuel line system for internal combustion engines with multipoint fuel injection pumps |
| DE4340885A1 (en) * | 1993-12-01 | 1995-06-08 | Kloeckner Humboldt Deutz Ag | V-shaped internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007113038A1 (en) * | 2006-03-30 | 2007-10-11 | Robert Bosch Gmbh | Fuel injection device for a multi-cylinder fuel internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |