DE102009000859A1 - Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition - Google Patents
Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition Download PDFInfo
- Publication number
- DE102009000859A1 DE102009000859A1 DE200910000859 DE102009000859A DE102009000859A1 DE 102009000859 A1 DE102009000859 A1 DE 102009000859A1 DE 200910000859 DE200910000859 DE 200910000859 DE 102009000859 A DE102009000859 A DE 102009000859A DE 102009000859 A1 DE102009000859 A1 DE 102009000859A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel
- pump
- high pressure
- pressure pump
- recess
- 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
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
- 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
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0421—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
-
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Die Erfindung betrifft eine Kraftstoff-Hochdruckpumpe für eine Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1 und des nebengeordneten Anspruchs 2.The The invention relates to a high-pressure fuel pump for a Internal combustion engine according to the preamble of claim 1 and of independent claim 2.
Stand der TechnikState of the art
Kraftstoff-Hochdruckpumpen
sind für den Einsatz in Common-Rail-Einspritzsystemen zur
Erzeugung eines Hochdrucks im Common-Rail in unterschiedlichen Ausführungsformen
bekannt. Ein Beispiel für eine solche Kraftstoff-Hochdruckpumpe ist
aus der
Bekannt ist auch die Verwendung einer Kraftstoff-Hochdruckpumpe als Steckpumpe zu verwenden. D. h. die Kraftstoff-Hochdruckpumpe wird zum Beispiel in einen Zylinderkopf der Brennkraftmaschine gesteckt und von der im Zylinderkopf angeordneten Nockenwelle angetrieben. Dadurch können ein Pumpengehäuse und eine separate Antriebswelle für die Kraftstoff-Hochdruckpumpe entfallen. Dadurch werden der Bauraumbedarf und die Herstellungskosten verringert.Known is also the use of a high-pressure fuel pump as a plug-in pump to use. Ie. the fuel high-pressure pump is for example stuck in a cylinder head of the engine and of the driven in the cylinder head arranged camshaft. Thereby can a pump housing and a separate drive shaft for the Fuel high-pressure pump omitted. As a result, the space requirement and the manufacturing cost is reduced.
Offenbarung der ErfindungDisclosure of the invention
Aufgabe der Erfindung ist es, eine Kraftstoff-Hochdruckpumpe der eingangs genannten Art so weiterzuentwickeln, dass sie auch als Steckpumpe eingesetzt werden kann. Die Kraftstoff-Hochdruckpumpe soll zudem in der Herstellung kostengünstig sein.task The invention is a high-pressure fuel pump of the beginning so-called type so that they also as plug-in pump can be used. The high-pressure fuel pump should also be inexpensive to manufacture.
Die Aufgabe wird durch die Merkmale des Anspruchs 1, sowie des nebengeordneten Anspruchs 2 gelöst. Für die Erfindung wichtige Merkmale finden sich ferner in der nachfolgenden Beschreibung und in der Zeichnung, wobei die Merkmale sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen für die Erfindung wichtig sein können, ohne dass hierauf jeweils explizit hingewiesen wird. Vorteilhafte Weiterbildungen finden sich in den Unteransprüchen.The The object is achieved by the features of claim 1, as well as the sibling Claim 2 solved. Important for the invention Features can also be found in the following description and in the drawing, the features both in isolation and also in different combinations for the invention can be important without being explicit on each one is pointed out. Advantageous developments can be found in the Dependent claims.
Die
Verwendung eines Pumpenelements mit Rollenstößel
erfordert eine Verliersicherung des Rollenstößels,
damit er sich nicht vom übrigen Teil des Pumpenelements
vor der Montage im Zylinderkopf der Brennkraftmaschine lösen
kann. Erfindungsgemäß wird dies durch einen Sicherungsring
sichergestellt, der bspw. nach
Nach erfolgter Montage des Stößels entspannt sich der Sicherungsring wieder und ragt dann in eine Ausnehmung in einer inneren Führungsfläche des Stößels bzw. des Zylinders. Dadurch wird eine demontierbare Verliersicherung zwischen Stößel und Zylinder gebildet,To Successful assembly of the plunger relaxes the Retaining ring again and then protrudes into a recess in one inner guide surface of the plunger or of the cylinder. This will be a demountable captive formed between plunger and cylinder,
Der Durchmesser der Ausnehmung ist so bemessen, dass der Sicherungsring in entspanntem Zustand nicht an der Ausnehmung anliegt und in Folge dessen weder Reibung noch Verschleiß auftritt.Of the Diameter of the recess is such that the retaining ring in a relaxed state is not applied to the recess and in consequence where neither friction nor wear occurs.
Die Ausnehmung ist derart ausgestaltet, dass sie in axialer Richtung größer oder gleich dem Hub des Pumpenelements ist, so dass sie die Bewegung des Pumpenkolbens nicht behindert. Die Ausnehmung ist darüber hinaus derart ausgestaltet, dass sie mindestens an einem Ende eine Fase oder einen Radius aufweist und dass die Ringnut so dimensioniert ist, dass der Sicherungsring in einem gespanntem Zustand vollständig in der Ringnut aufgenommen ist. Dies vereinfacht eine Montage erheblich und macht eine zerstörungsfreie Demontage möglich. Hierzu kann eine notwendige Radialkraft zum Zusammenschieben des Sicherungsrings über eine Axialkraft beim Aufschieben oder Herabziehen des Stößels aufgebracht werden. Außerdem kann an einem freien Ende des Stößels ebenfalls eine Fase oder ein Radius vorgesehen sein, um besonders zur Montage das Aufschieben des Stößels über den Sicherungsring zu erleichtern. Die Fase oder der Radius unterstützen die Kraftübersetzung.The Recess is designed such that it in the axial direction greater than or equal to the stroke of the pump element is so that it does not hinder the movement of the pump piston. The recess is also designed in such a way that it has a chamfer or a radius at least at one end and that the annular groove is dimensioned so that the retaining ring in a tensioned state completely in the annular groove is included. This simplifies assembly considerably and makes a non-destructive disassembly possible. For this can be a necessary radial force for pushing the locking ring over an axial force when pushing or pulling down the plunger be applied. Besides, at a free end the plunger also has a chamfer or a radius Be provided to slide over the push especially about the assembly to facilitate the circlip. Support the chamfer or radius the power transmission.
Schließlich kann durch den Winkel der Fase bzw. der Größe des Radius die Montage- und damit auch die Haltekraft konstruktiv vorgegeben werden.After all can by the angle of the chamfer or the size the radius of the assembly and thus the holding force constructive be specified.
Die Ausnehmung unterteilt die Führungsfläche zwischen Stößel und Zylinder in einen ersten Abschnitt und einen zweiten Abschnitt. Bei der Positionierung der Ausnehmung ist zu berücksichtigen, dass eine optimale Führung des Stößels auf dem Zylinderkopf gewährleistet ist. Der näher an einem Antrieb der Kraftstoff-Hochdruckpumpe angeordnete Abschnitt der Führungsfläche sollte dabei in aller Regel länger sein, als der am entgegengesetzten Ende des Führungsfläche vorhandene Abschnitt. Dadurch werden eventuelle Querkräfte, die vom Antrieb herrühren weitgehend neutralisiert. Der Verschleiß der Anordnung wird gemindert und damit die Nutzungsdauer verlängert.The Recess divides the guide surface between Tappet and cylinder in a first section and a second section. When positioning the recess is to take into account that optimal leadership ensures the ram on the cylinder head is. The closer to a drive of the high-pressure fuel pump arranged section of the guide surface should be usually be longer than the opposite End of the guide surface existing section. This will cause any lateral forces that come from the drive largely neutralized. The wear of the arrangement is reduced and thus extends the useful life.
Kurzbeschreibung der FigurenBrief description of the figures
Nachfolgend wird anhand der Figuren ein Ausführungsbeispiel der Erfindung beispielhaft erläutert. Es zeigen:following is an embodiment of the invention with reference to the figures exemplified. Show it:
Detaillierte BeschreibungDetailed description
Beginnend
mit der
Mit
Hilfe eines Überdruckventils
Ein
tassenförmig ausgebildeter Stößel
Der
durch den Hochdruckkolben
Der
Zylinderkopf
Im
Zylinderkopfschaft
Die
beiden axialen Enden der Ausnehmung
Die
Ausgestaltung des Stößels
Zunächst
wird der Sprengring
First, the snap ring
Der
Zylinderkopfschaft
Zu
einer Demontage wird der Stößel
In
einer nicht dargestellten Ausführungsform ist es auch möglich,
dass der Stößel
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006048722 A1 [0002] - DE 102006048722 A1 [0002]
Zitierte Nicht-PatentliteraturCited non-patent literature
- - DIN 7993 [0006] - DIN 7993 [0006]
- - DIN 7993 [0025] - DIN 7993 [0025]
- - DIN 7993 [0025] - DIN 7993 [0025]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910000859 DE102009000859A1 (en) | 2009-02-13 | 2009-02-13 | Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910000859 DE102009000859A1 (en) | 2009-02-13 | 2009-02-13 | Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009000859A1 true DE102009000859A1 (en) | 2010-08-19 |
Family
ID=42338425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910000859 Ceased DE102009000859A1 (en) | 2009-02-13 | 2009-02-13 | Fuel high pressure pump for use as plug-in pump for conveying fuel for common rail fuel injection system of internal combustion engine, has safety ring inserted into annular ring and projecting over annular ring in relaxed condition |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009000859A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014203551A1 (en) | 2014-02-27 | 2015-08-27 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
ITBO20140261A1 (en) * | 2014-05-05 | 2015-11-06 | FUEL PUMP FOR A DIRECT INJECTION SYSTEM | |
DE102014213715A1 (en) | 2014-07-15 | 2016-01-21 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
WO2016015913A1 (en) * | 2014-07-30 | 2016-02-04 | Robert Bosch Gmbh | Plug-in pump with integrated transport securing means |
DE102014217388A1 (en) | 2014-09-01 | 2016-03-03 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
CN105840377A (en) * | 2016-05-23 | 2016-08-10 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | Economical tappet body guiding structure for fuel feed pump |
WO2016142072A1 (en) | 2015-03-11 | 2016-09-15 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
EP3085944A1 (en) * | 2015-04-22 | 2016-10-26 | Delphi International Operations Luxembourg S.à r.l. | Externally sprung tappet with head turret guide for a fuel pump |
EP3088728A1 (en) | 2015-04-28 | 2016-11-02 | Magneti Marelli S.p.A. | Fuel pump for a direct injection system with an improved hydraulic sealing of the intake valve |
WO2016177431A1 (en) * | 2015-05-07 | 2016-11-10 | Volvo Truck Corporation | Fuel pump assembly |
DE102015216024A1 (en) | 2015-08-21 | 2017-02-23 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
DE102016215092A1 (en) | 2016-08-12 | 2018-02-15 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006048722A1 (en) | 2006-10-16 | 2008-04-17 | Robert Bosch Gmbh | Piston pump, in particular high-pressure fuel pump, with roller tappet |
-
2009
- 2009-02-13 DE DE200910000859 patent/DE102009000859A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006048722A1 (en) | 2006-10-16 | 2008-04-17 | Robert Bosch Gmbh | Piston pump, in particular high-pressure fuel pump, with roller tappet |
Non-Patent Citations (1)
Title |
---|
DIN 7993 |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014203551A1 (en) | 2014-02-27 | 2015-08-27 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
ITBO20140261A1 (en) * | 2014-05-05 | 2015-11-06 | FUEL PUMP FOR A DIRECT INJECTION SYSTEM | |
DE102014213715A1 (en) | 2014-07-15 | 2016-01-21 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
WO2016008626A1 (en) * | 2014-07-15 | 2016-01-21 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
CN106574589A (en) * | 2014-07-30 | 2017-04-19 | 罗伯特·博世有限公司 | Plug-in pump with integrated transport securing means |
WO2016015913A1 (en) * | 2014-07-30 | 2016-02-04 | Robert Bosch Gmbh | Plug-in pump with integrated transport securing means |
CN106574589B (en) * | 2014-07-30 | 2019-04-05 | 罗伯特·博世有限公司 | Grafting pump with integrated transport clamp device |
DE102014217388A1 (en) | 2014-09-01 | 2016-03-03 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
WO2016034316A1 (en) | 2014-09-01 | 2016-03-10 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
WO2016142072A1 (en) | 2015-03-11 | 2016-09-15 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
DE102015204321A1 (en) | 2015-03-11 | 2016-09-15 | Robert Bosch Gmbh | High-pressure fuel pump, in particular for a fuel injection device of an internal combustion engine |
EP3085944A1 (en) * | 2015-04-22 | 2016-10-26 | Delphi International Operations Luxembourg S.à r.l. | Externally sprung tappet with head turret guide for a fuel pump |
EP3088728A1 (en) | 2015-04-28 | 2016-11-02 | Magneti Marelli S.p.A. | Fuel pump for a direct injection system with an improved hydraulic sealing of the intake valve |
US9856844B2 (en) | 2015-04-28 | 2018-01-02 | MAGNETI MARELLI S.p.A. | Fuel pump for a direct injection system with a better hydraulic sealing of the intake valve |
WO2016177431A1 (en) * | 2015-05-07 | 2016-11-10 | Volvo Truck Corporation | Fuel pump assembly |
WO2016177799A1 (en) * | 2015-05-07 | 2016-11-10 | Volvo Truck Corporation | Fuel pump assembly |
US10578083B2 (en) | 2015-05-07 | 2020-03-03 | Volvo Truck Corporation | Fuel pump assembly |
DE102015216024A1 (en) | 2015-08-21 | 2017-02-23 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
WO2017032484A1 (en) | 2015-08-21 | 2017-03-02 | Robert Bosch Gmbh | Pump, in particular a high-pressure fuel pump for a fuel injection device of an internal combustion engine |
CN105840377A (en) * | 2016-05-23 | 2016-08-10 | 中国第汽车股份有限公司无锡油泵油嘴研究所 | Economical tappet body guiding structure for fuel feed pump |
DE102016215092A1 (en) | 2016-08-12 | 2018-02-15 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine |
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