DE102008040083A1 - high pressure pump - Google Patents
high pressure pump Download PDFInfo
- Publication number
- DE102008040083A1 DE102008040083A1 DE200810040083 DE102008040083A DE102008040083A1 DE 102008040083 A1 DE102008040083 A1 DE 102008040083A1 DE 200810040083 DE200810040083 DE 200810040083 DE 102008040083 A DE102008040083 A DE 102008040083A DE 102008040083 A1 DE102008040083 A1 DE 102008040083A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- cylinder head
- pressure pump
- plug
- housing
- 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.)
- Withdrawn
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
- F02M59/20—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
Abstract
Eine Hochdruckpumpe (1), die insbesondere als Radial- oder Reihenkolbenpumpe für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen dient, weist ein Gehäuse (2) und eine in dem Gehäuse (2) gelagerte Antriebswelle (4) auf. Mit dem Gehäuse (2) ist ein Zylinderkopf (3) verbunden, wobei eine von einem Nocken (10) der Antriebswelle (4) antreibbare Steckpumpe (11) in den Zylinderkopf (3) integriert ist. Ferner ist eine Zumesseinheit (26) vorgesehen, die der Steckpumpe (11) zugeordnet ist und die ebenfalls in den Zylinderkopf (3) integriert ist. Dadurch ist eine kompakte Ausgestaltung der Hochdruckpumpe (1) möglich.A high-pressure pump (1), which serves in particular as a radial or series piston pump for fuel injection systems of air-compressing, self-igniting internal combustion engines, has a housing (2) and a drive shaft (4) mounted in the housing (2). A cylinder head (3) is connected to the housing (2), one plug-in pump (11) which can be driven by a cam (10) of the drive shaft (4) being integrated in the cylinder head (3). Further, a metering unit (26) is provided which is associated with the plug-in pump (11) and which is also integrated in the cylinder head (3). As a result, a compact design of the high-pressure pump (1) is possible.
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Hochdruckpumpe, insbesondere eine Radial- oder Reihenkolbenpumpe für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen. Speziell betrifft die Erfindung das Gebiet der Brennstoffpumpen zum Fördern von Brennstoff zu einem Common-Rail.The The invention relates to a high-pressure pump, in particular a radial or inline piston pump for fuel injection systems of air-compressing, self-igniting internal combustion engines. Specifically, the invention relates to the field of fuel pumps for Conveying fuel to a common rail.
Aus
der
Die
aus der
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Hochdruckpumpe mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass eine optimierte Ausgestaltung einer Hochdruckpumpe möglich ist. Speziell kann der benötigte Bauraum für die Brennstoffeinspritzanlage optimiert werden.The High-pressure pump according to the invention with the features of claim 1 has the advantage that an optimized design a high-pressure pump is possible. Specifically, the required Space for the fuel injection system to be optimized.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Hochdruckpumpe möglich.By the measures listed in the dependent claims are advantageous developments of specified in claim 1 High pressure pump possible.
In vorteilhafter Weise ist ein Saugventil vorgesehen, das als Einlassventil für die Steckpumpe dient, wobei das Saugventil in den Zylinderkopf integriert ist und wobei die Zumesseinheit über das Saugventil mit der Steckpumpe verbunden ist. Dabei ist es ferner vorteilhaft, dass das Saugventil eine Verbindung eines Zulaufs mit einem Pumpenarbeitsraum der Steckpumpe steuert, wobei der Pumpenarbeitsraum in dem Zylinderkopf ausgestaltet und durch einen Kolben der Steckpumpe begrenzt ist. Dadurch ist eine kompakte Ausgestaltung der Hochdruckpumpe möglich, die sowohl die Steckpumpe als auch die Zumesseinheit aufnimmt. Solch eine Ausgestaltung ist speziell für eine hochübersetzte Hochdruckpumpe von Vorteil. Beispielsweise kann die Hochdruckpumpe auf der Ausgleichswelle einer Brennkraftmaschine, insbesondere eines Diesel-Pkw-Motors Anwendung finden, der mit einer Übersetzungszahl in Bezug zum Kurbelwinkel von ungefähr 2 läuft. Dabei ist es auch möglich, dass eine Verbindung einer Antriebswelle der Hochdruckpumpe mit einer Nockenwelle erfolgt.In Advantageously, a suction valve is provided, which serves as an inlet valve for the plug-in pump, the suction valve in the cylinder head is integrated and wherein the metering unit via the suction valve connected to the plug-in pump. It is also advantageous that the suction valve is a connection of an inlet with a pump working space the plug-in pump controls, the pump working space in the cylinder head configured and limited by a piston of the plug-in pump. Thereby is a compact design of the high pressure pump possible which receives both the plug-in pump and the metering unit. Such An embodiment is especially for a highly translated High pressure pump of advantage. For example, the high-pressure pump on the balance shaft of an internal combustion engine, in particular a Diesel car engine find application with a gear ratio in relation to the crank angle of about 2 runs. It is also possible that a connection of a drive shaft the high-pressure pump takes place with a camshaft.
Vorteilhaft ist es, dass die Steckpumpe einen Stößelkörper aufweist, der in einer Bohrung des Gehäuses verschiebbar angeordnet ist, dass ein Ansatz des Zylinderkopfes in die Bohrung des Gehäuses ragt und dass ein Stift vorgesehen ist, der einerseits in den Stößelkörper und andererseits in eine an dem Ansatz des Zylinderkopfes vorgesehene Nut eingreift. Dadurch ist zum einen eine Verdrehsicherung für den Stößelkörper gewährleistet, die übermäßige Verdrehungen des Stößelkörpers verhindert. Ferner kann durch den Stift, insbesondere in Kombination mit einem weiteren Stift, eine Verliersicherung für den Rollenstößel ausgebildet sein.Advantageous it is that the plug-in pump has a tappet body has, which displaceable in a bore of the housing arranged is that an approach of the cylinder head into the bore of the housing protrudes and that a pin is provided, the on the one hand in the ram body and on the other engages in a provided on the neck of the cylinder head groove. As a result, on the one hand an anti-rotation device for the plunger body ensures the excessive twists prevents the plunger body. Furthermore, can through the pen, especially in combination with another Pen, a lunge lock for the roller tappet be educated.
Vorteilhaft ist es auch, dass die an dem Ansatz des Zylinderkopfes vorgesehene Nut die Verschiebbarkeit des Stößelkörpers in der Bohrung des Gehäuses sowohl in einer Saugrichtung als auch entgegen einer Saugrichtung begrenzt. Speziell in diesem Fall ist es ferner von Vorteil, dass in der Bohrung des Gehäuses eine Stößelfeder vorgesehen ist, die zwischen dem Zylinderkopf und dem Stößelkörper eingespannt ist, und dass die Stößelfeder vorgespannt ist. Ferner ist in vorteilhafter Weise ein durch die Nut vorgegebener Freiweg des Stiftes etwas größer als ein durch den Nocken der Antriebswelle vermittelter Hub der Steckpumpe. Somit ist eine gewisse Vorspannung der Stößelfeder möglich, die einen zuverlässigen Betrieb, insbesondere eine zuverlässige Rückstellung des Kolbens der Steckpumpe ermöglicht. Ferner können durch die Stifte mehrere Funktionen erzielt werden. Dabei ist es möglich, eine Verdrehsicherung, eine Verliersicherung und eine vorteilhafte Befestigung oder Fixierung des Rollenstößels zu erzielen.Advantageous It is also that the provided on the approach of the cylinder head Groove the displaceability of the plunger body in the bore of the housing both in a suction direction limited as well as against a suction direction. Especially in this Case, it is also advantageous that in the bore of the housing a pusher spring is provided between the the cylinder head and the tappet body clamped is, and that the plunger spring is biased. Furthermore, a predetermined by the groove is advantageously Free path of the pen slightly larger than a through the cam of the drive shaft mediated stroke of the plug-in pump. Consequently is a certain bias of the plunger spring possible a reliable operation, in particular a reliable provision the piston of the plug-in pump allows. Furthermore, can several functions are achieved by the pins. That's it possible, an anti-rotation, a captive and an advantageous attachment or fixation of the roller tappet to achieve.
Kurze Beschreibung der ZeichnungShort description of the drawing
Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der nachfolgenden Beschreibung anhand der beigefügten Zeichnung näher erläutert. Es zeigt:A preferred embodiment of the invention is explained in more detail in the following description with reference to the accompanying drawings. It shows:
Ausführungsformen der Erfindungembodiments the invention
Die
Hochdruckpumpe
Die
Hochdruckpumpe
Die
Hochdruckpumpe
Das
Gehäuse
Die
Steckpumpe
In
den Stößelkörper
Die
Hochdruckpumpe
Der
Ansatz
Durch
die Zusammenwirkung der Stifte
Die
Hochdruckpumpe
i = 2.The high pressure pump
i = 2.
Dabei
kann die Antriebswelle
Die Erfindung ist nicht auf das beschriebene Ausführungsbeispiel beschränkt.The Invention is not on the described embodiment limited.
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 102005046670 A1 [0002, 0003] - DE 102005046670 A1 [0002, 0003]
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810040083 DE102008040083A1 (en) | 2008-07-02 | 2008-07-02 | high pressure pump |
PCT/EP2009/055326 WO2010000512A1 (en) | 2008-07-02 | 2009-05-04 | High-pressure pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810040083 DE102008040083A1 (en) | 2008-07-02 | 2008-07-02 | high pressure pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008040083A1 true DE102008040083A1 (en) | 2010-01-07 |
Family
ID=40937510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810040083 Withdrawn DE102008040083A1 (en) | 2008-07-02 | 2008-07-02 | high pressure pump |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008040083A1 (en) |
WO (1) | WO2010000512A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011128150A1 (en) * | 2010-04-14 | 2011-10-20 | Robert Bosch Gmbh | High-pressure pump |
WO2012019881A1 (en) | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Noise optimized high pressure pump |
DE102010039205A1 (en) | 2010-08-11 | 2012-02-16 | Robert Bosch Gmbh | Roller tappet for use in high pressure pump, particularly for common rail injection system of internal combustion engine, has tappet body with roller shoe and track roller, where track roller cooperates with cam surface of cam shaft |
DE102010042472A1 (en) | 2010-10-14 | 2012-04-19 | Robert Bosch Gmbh | High-pressure pump of a fuel injection system of an internal combustion engine |
WO2012048967A1 (en) * | 2010-10-15 | 2012-04-19 | Robert Bosch Gmbh | Roller shoe for a high-pressure pump of a fuel injection system |
DE102010042488A1 (en) | 2010-10-15 | 2012-04-19 | Robert Bosch Gmbh | High pressure pump for e.g. common-rail injection system of diesel engine, has plunger space held in fluid connection with pumping space via longitudinal grooves, and plunger body moveably fed in pump casing |
CN104204501A (en) * | 2012-03-19 | 2014-12-10 | 罗伯特·博世有限公司 | High-pressure pump |
US9984558B2 (en) | 2012-06-27 | 2018-05-29 | RobArt GmbH | Interaction between a mobile robot and an alarm installation |
CH716632A1 (en) * | 2019-09-25 | 2021-03-31 | Liebherr Machines Bulle Sa | In-line piston pump. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005046670A1 (en) | 2005-09-29 | 2007-04-05 | Robert Bosch Gmbh | High pressure pump for fuel injection device of internal combustion engine, has ball indirectly fixed in part of base plate in tangential direction to tappet and engaged in groove approximately radial to longitudinal axis of tappet |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307828A1 (en) * | 1983-03-05 | 1984-09-06 | Robert Bosch Gmbh, 7000 Stuttgart | FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES |
JP3747061B2 (en) * | 1993-11-08 | 2006-02-22 | ツェーエルテー・コモン・レイル・テクノロジーズ・アクチェンゲゼルシャフト | Control device for injection ratio adjusting pump |
JPH1018941A (en) * | 1996-07-01 | 1998-01-20 | Mitsubishi Electric Corp | Variable discharge quantity high pressure pump |
ATE399936T1 (en) * | 2003-11-28 | 2008-07-15 | Ganser Hydromag | HIGH PRESSURE PUMP FOR COMBUSTION ENGINES |
WO2005078273A1 (en) * | 2004-02-11 | 2005-08-25 | Robert Bosch Gmbh | High pressure pump, in particular for a fuel injection device in an internal combustion engine |
-
2008
- 2008-07-02 DE DE200810040083 patent/DE102008040083A1/en not_active Withdrawn
-
2009
- 2009-05-04 WO PCT/EP2009/055326 patent/WO2010000512A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005046670A1 (en) | 2005-09-29 | 2007-04-05 | Robert Bosch Gmbh | High pressure pump for fuel injection device of internal combustion engine, has ball indirectly fixed in part of base plate in tangential direction to tappet and engaged in groove approximately radial to longitudinal axis of tappet |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102859178A (en) * | 2010-04-14 | 2013-01-02 | 罗伯特·博世有限公司 | High-pressure pump |
WO2011128150A1 (en) * | 2010-04-14 | 2011-10-20 | Robert Bosch Gmbh | High-pressure pump |
CN102859178B (en) * | 2010-04-14 | 2016-01-20 | 罗伯特·博世有限公司 | High-pressure service pump |
JP2013527365A (en) * | 2010-04-14 | 2013-06-27 | 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 | High pressure pump |
WO2012019881A1 (en) | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Noise optimized high pressure pump |
DE102010039113A1 (en) | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Noise-optimized high-pressure pump |
DE102010039205A1 (en) | 2010-08-11 | 2012-02-16 | Robert Bosch Gmbh | Roller tappet for use in high pressure pump, particularly for common rail injection system of internal combustion engine, has tappet body with roller shoe and track roller, where track roller cooperates with cam surface of cam shaft |
WO2012048960A1 (en) | 2010-10-14 | 2012-04-19 | Robert Bosch Gmbh | High-pressure pump of a fuel injection system of an internal combustion engine |
DE102010042472A1 (en) | 2010-10-14 | 2012-04-19 | Robert Bosch Gmbh | High-pressure pump of a fuel injection system of an internal combustion engine |
DE102010042488A1 (en) | 2010-10-15 | 2012-04-19 | Robert Bosch Gmbh | High pressure pump for e.g. common-rail injection system of diesel engine, has plunger space held in fluid connection with pumping space via longitudinal grooves, and plunger body moveably fed in pump casing |
WO2012048967A1 (en) * | 2010-10-15 | 2012-04-19 | Robert Bosch Gmbh | Roller shoe for a high-pressure pump of a fuel injection system |
CN104204501A (en) * | 2012-03-19 | 2014-12-10 | 罗伯特·博世有限公司 | High-pressure pump |
US9984558B2 (en) | 2012-06-27 | 2018-05-29 | RobArt GmbH | Interaction between a mobile robot and an alarm installation |
CH716632A1 (en) * | 2019-09-25 | 2021-03-31 | Liebherr Machines Bulle Sa | In-line piston pump. |
Also Published As
Publication number | Publication date |
---|---|
WO2010000512A1 (en) | 2010-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |