DE102017207197A1 - High-pressure fuel pump - Google Patents
High-pressure fuel pump Download PDFInfo
- Publication number
- DE102017207197A1 DE102017207197A1 DE102017207197.4A DE102017207197A DE102017207197A1 DE 102017207197 A1 DE102017207197 A1 DE 102017207197A1 DE 102017207197 A DE102017207197 A DE 102017207197A DE 102017207197 A1 DE102017207197 A1 DE 102017207197A1
- Authority
- DE
- Germany
- Prior art keywords
- sleeve
- shaped part
- pump housing
- pressure fuel
- pressure
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 60
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 239000012530 fluid Substances 0.000 claims abstract description 3
- 239000012528 membrane Substances 0.000 description 9
- 238000013016 damping Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
Images
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
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
-
- 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
-
- 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
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/04—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
-
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
- F02M59/46—Valves
-
- 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
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- 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
- F02M2200/8084—Fuel injection apparatus manufacture, repair or assembly involving welding or soldering
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Kraftstoff-Hochdruckpumpe, beispielsweise für ein Kraftstoffsystem (10) einer Brennkraftmaschine, mit einem Pumpengehäuse und einem an einer gewölbten Außenfläche des Pumpengehäuses montierten Anschlussstutzen, durch den ein Fluid in das Pumpengehäuse hinein oder aus dem Pumpengehäuse heraus gelangen kann, dadurch gekennzeichnet, dass der Anschlussstutzen mehrteilig ausgeführt ist und ein erstes hülsenförmiges Teil aufweist, das den Anschlussstutzen in einer Bohrung des Pumpengehäuses zentriert, und ein zweites hülsenförmiges Teil aufweist, das den Anschlussstutzen an der gewölbten Außenfläche des Pumpengehäuses fixiert.High-pressure fuel pump, for example, for a fuel system (10) of an internal combustion engine, with a pump housing and a mounted on a curved outer surface of the pump housing spigot through which a fluid can get into the pump housing or out of the pump housing, characterized in that the connecting piece has a plurality of parts and has a first sleeve-shaped part, which centers the connection piece in a bore of the pump housing, and a second sleeve-shaped part which fixes the connection piece on the curved outer surface of the pump housing.
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Kraftstoff-Hochdruckpumpe, beispielsweise für ein Kraftstoffsystem einer Brennkraftmaschine mit einem Pumpengehäuse und einem an einer gewölbten Außenfläche des Pumpengehäuses montierten Anschlussstutzen, durch den ein Fluid in das Pumpengehäuse hinein oder aus dem Pumpengehäuse heraus gelangen kann.The invention relates to a high-pressure fuel pump, for example for a fuel system of an internal combustion engine with a pump housing and a mounted on a curved outer surface of the pump housing connecting piece through which a fluid can get into the pump housing or out of the pump housing.
Offenbarung der ErfindungDisclosure of the invention
Das der Erfindung zugrunde liegende Problem wird durch eine Kraftstoff-Hochdruckpumpe nach Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen und in den Ausführungsbeispielen angegeben.The problem underlying the invention is achieved by a high-pressure fuel pump according to claim 1. Advantageous developments are specified in the dependent claims and in the embodiments.
Die Erfindung geht von dem Bedürfnis aus, einen Anschlussstutzen an einer gewölbten Außenfläche des Pumpengehäuses fest und dauerhaft, zugleich aber mit geringem fertigungstechnischem Aufwand vorzusehen.The invention is based on the need to provide a connection piece on a curved outer surface of the pump housing firmly and permanently, but at the same time with low manufacturing effort.
Die Erfindung basiert ferner auf der Erkenntnis, dass es für eine feste und dauerhafte Verbindung der gewölbten Außenfläche des Pumpengehäuses mit dem Anschlussstutzen erforderlich ist, den Anschlussstutzen sowohl in einer Bohrung des Pumpengehäuse zu zentrieren, als auch an der gewölbten Außenfläche des Pumpengehäuses zu fixieren, sodass der Anschlussstutzen sowohl einen, beispielsweise zylindrischen, Bereich benötigt, mit dem er in der Bohrung des Pumpengehäuses zentrierbar ist, als auch einen, beispielsweise gewölbten, Bereich benötigt, mit dem er an der gewölbten Außenfläche des Pumpengehäuses fixierbar ist. Die Erfinder haben erkannt, dass ein solches Teil grundsätzlich komplex ist und nur aufwändig hergestellt werden kann und sind nachfolgend zu der Lösung gemäß dem Anspruch 1 der vorliegenden Erfindung gelangt.The invention is further based on the recognition that it is necessary for a firm and permanent connection of the curved outer surface of the pump housing with the connection piece to center the connection both in a bore of the pump housing, as well as to fix the curved outer surface of the pump housing, so the connecting piece requires both a, for example, cylindrical, area with which it is centered in the bore of the pump housing, as well as a, for example curved, area required with which it can be fixed to the curved outer surface of the pump housing. The inventors have recognized that such a part is fundamentally complex and can only be produced in a complicated manner, and has subsequently arrived at the solution according to claim 1 of the present invention.
Dadurch, dass der Anschlussstutzen mehrteilig ausgeführt ist und ein erstes hülsenförmiges Teil aufweist, das den Anschlussstutzen in einer Bohrung des Pumpengehäuses zentriert, und ein zweites hülsenförmiges Teil aufweist, das den Anschlussstutzen an der gewölbten Außenfläche des Pumpengehäuses fixiert, können diese beiden hülsenförmigen Teile mit vergleichsweise einfacher Geometrie mit geringem Aufwand gefertigt werden und mit an sich bekannten Verfahren an der Kraftstoff-Hochdruckpumpe montiert werden. Insgesamt wird ein Anschlussstutzen an einer gewölbten Außenfläche des Pumpengehäuses fest und dauerhaft, zugleich aber mit geringem fertigungstechnischem Aufwand vorgesehen.Characterized in that the connecting piece is designed in several parts and having a first sleeve-shaped part which centers the connection piece in a bore of the pump housing, and a second sleeve-shaped part which fixes the connection piece on the curved outer surface of the pump housing, these two sleeve-shaped parts with comparatively Simple geometry can be manufactured with little effort and mounted with known methods to the high-pressure fuel pump. Overall, a connecting piece on a curved outer surface of the pump housing is fixed and durable, but at the same time provided with low manufacturing complexity.
Bei dem Anschlussstutzen kann es sich insbesondere um einen Kraftstoffeinlass der Kraftstoff-Hochdruckpumpe handeln, über den die Kraftstoff-Hochdruckpumpe mit einem Niederdruckbereich eines Kraftstoffsystems, beispielsweise einer Niederdruckpumpe, verbindbar ist. Anderseits kann ein Anschlussstutzen auch der Auslass einer Kraftstoff-Hochdruckpumpe sein, durch den der insbesondere verdichtete, Kraftstoff die Pumpe wieder verlässt. Auch ein Auslass, durch den Kraftstoff, der die Pumpe verlässt ohne selbst in der Pumpe verdichtet worden zu sein und/oder der beispielsweise eine Leckage darstellt oder der beispielsweise einer Spülung der Pumpe dient, stellt insbesondere einen Anschlussstutzen dar.The connecting piece may in particular be a fuel inlet of the high-pressure fuel pump, via which the high-pressure fuel pump can be connected to a low-pressure region of a fuel system, for example a low-pressure pump. On the other hand, a connecting piece can also be the outlet of a high-pressure fuel pump, through which the particularly compressed fuel leaves the pump again. An outlet through which the fuel leaves the pump without being compressed in the pump itself and / or which, for example, constitutes a leak or which, for example, serves to flush the pump, in particular constitutes a connecting piece.
Es versteht sich, dass der Anschlussstutzen an allen Seiten des Pumpengehäuses, insbesondere an allen Seiten eines Deckelelements des Pumpengehäuses, z.B. an einer radialen und/oder axialen Seite des Pumpengehäuses bzw. des Deckelelements ohne weiteres vorgesehen werden kann.It is understood that the connection piece on all sides of the pump housing, in particular on all sides of a cover element of the pump housing, e.g. can be readily provided on a radial and / or axial side of the pump housing or the cover element.
Unter einem hülsenförmigen Teil wird im Rahmen der Anmeldung insbesondere ein Teil verstanden, das durchströmbar ist und/oder insbesondere die Form einer Ringscheibe oder eines zylindrischen und/oder gebogenen Rohrstücks hat. Hülsenförmige Teile können insbesondere kreisförmige Außen- und/oder Innenumfänge aufweisen.Under a sleeve-shaped part is understood in the context of the application, in particular a part which can be flowed through and / or in particular has the shape of an annular disc or a cylindrical and / or bent pipe section. Sleeve-shaped parts may in particular have circular outer and / or inner peripheries.
Nachfolgend werden beispielhafte Ausführungsformen der Erfindung unter Bezugnahme auf die Zeichnung erläutert. In der Zeichnung zeigen:
-
1 eine vereinfachte schematisierte Darstellung eines Kraftstoffsystems für eine Brennkraftmaschine; -
2 eine Schnittdarstellung einer erfindungsgemäßen Kraftstoff-Hochdruckpumpe; -
3a, b , c verschiedene Ansichten eines ersten Ausführbeispiel der Erfindung -
4 eine Schnittdarstellung gemäß einem zweiten Ausführbeispiel der Erfindung
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1 a simplified schematic representation of a fuel system for an internal combustion engine; -
2 a sectional view of a fuel high-pressure pump according to the invention; -
3a, b , c show various views of a first embodiment of the invention -
4 a sectional view according to a second Ausführbeispiel example of the invention
Ein Kolben
Über ein Druckbegrenzungsventil
Die Kraftstoff-Hochdruckpumpe
In der Darstellung von
Das Deckelelement
Das Pumpengehäuse
Der Membrandämpfer
Im Betrieb der Kraftstoff-Hochdruckpumpe
Der Einlassstutzen
Gemäß dem in den
Das zweite hülsenförmige Teil
Das erste hülsenförmige Teil
Das zweite hülsenförmige Teil
Das erste hülsenförmige Teil
Gemäß dem in der
Das zweite hülsenförmige Teil
Das erste hülsenförmige Teil
Dabei sind das erste hülsenförmige Teil
Das zweite hülsenförmige Teil
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017207197.4A DE102017207197A1 (en) | 2017-04-28 | 2017-04-28 | High-pressure fuel pump |
CN201810389894.6A CN108798960B (en) | 2017-04-28 | 2018-04-27 | High-pressure fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017207197.4A DE102017207197A1 (en) | 2017-04-28 | 2017-04-28 | High-pressure fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017207197A1 true DE102017207197A1 (en) | 2018-10-31 |
Family
ID=63797241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017207197.4A Pending DE102017207197A1 (en) | 2017-04-28 | 2017-04-28 | High-pressure fuel pump |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN108798960B (en) |
DE (1) | DE102017207197A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200026A1 (en) | 2019-01-03 | 2020-07-09 | Robert Bosch Gmbh | Fuel piston pump |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5774982A (en) * | 1994-03-16 | 1998-07-07 | Eaton Corporation | Conduit attachment to receiver/drier or accumulator |
CN2675996Y (en) * | 2004-01-17 | 2005-02-02 | 伍剑海 | Pipe connection |
WO2013018129A1 (en) * | 2011-08-01 | 2013-02-07 | トヨタ自動車株式会社 | Fuel pump |
DE102015209263B3 (en) * | 2015-05-21 | 2016-09-22 | Continental Automotive Gmbh | High-pressure connection device, high-pressure fuel pump and method for producing a high-pressure connection device for a high-pressure fuel pump |
-
2017
- 2017-04-28 DE DE102017207197.4A patent/DE102017207197A1/en active Pending
-
2018
- 2018-04-27 CN CN201810389894.6A patent/CN108798960B/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200026A1 (en) | 2019-01-03 | 2020-07-09 | Robert Bosch Gmbh | Fuel piston pump |
WO2020141029A1 (en) | 2019-01-03 | 2020-07-09 | Robert Bosch Gmbh | Fuel piston pump |
Also Published As
Publication number | Publication date |
---|---|
CN108798960A (en) | 2018-11-13 |
CN108798960B (en) | 2022-06-10 |
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Legal Events
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R012 | Request for examination validly filed |