DE102007062181A1 - High pressure fuel pump - Google Patents
High pressure fuel pump Download PDFInfo
- Publication number
- DE102007062181A1 DE102007062181A1 DE102007062181A DE102007062181A DE102007062181A1 DE 102007062181 A1 DE102007062181 A1 DE 102007062181A1 DE 102007062181 A DE102007062181 A DE 102007062181A DE 102007062181 A DE102007062181 A DE 102007062181A DE 102007062181 A1 DE102007062181 A1 DE 102007062181A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- pressure
- low
- fuel
- pressure 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.)
- Withdrawn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
- F02M59/02—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
- F02M59/06—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 with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Hochdruckkraftstoffpumpe zum Betrieb einer Brennkraftmaschine und bestehend aus einem Pumpengehäuse und zwei auf diesem aufgesetzten Pumpenzylinderköpfen, in welchen jeweils ein Pumpenkolben zur Verdichtung von unter Niederdruck stehendem Kraftstoff aus jeweils einem Niederdruckzulauf in jeweils einem Hochdruckraum auf Hochdruck und zur Förderung des Kraftstoff zu jeweils einem Hochdruckanschluss eines Hochdruckspeichers geführt ist, wobei die beiden Pumpenkolben über eine gemeinsame polygone Ausbildung einer Pumpennockenwelle betreibbar sind.The The invention relates to a high pressure fuel pump for operating a Internal combustion engine and consisting of a pump housing and two on this attached pump cylinder heads, in each of which a pump piston for compression of low pressure each standing fuel from a low pressure inlet in each case a high-pressure chamber at high pressure and to promote the fuel each led to a high pressure port of a high-pressure accumulator is, wherein the two pump pistons via a common polygons training a pump camshaft are operable.
Stand der TechnikState of the art
Aus
der
Nachteilhaft am bekannten Stand der Technik ist, dass bei der Verwendung einer derartigen Hochdruckkraftstoffpumpe für eine Brennkraftmaschine mit vier Zylindern, und damit aus ökonomischer Sicht mit zwei Pumpenkolben, ein anderes Pumpengehäuse verwendet wird, bei welchem die beiden Pumpenkolben gegenüberliegend um eine Pumpennockenwelle angeordnet sind. Die Verwendung eines anderen Pumpengehäuses führt allerdings zu einer Erhöhung des Fertigungsaufwandes, da andere Fertigungswerkzeuge benutzt werden müssen, als bei dem Pumpengehäuse der Dreizylinderhochdruckkraftstoffpumpe.disadvantageous in the prior art is that when using a such high-pressure fuel pump for an internal combustion engine with four cylinders, and thus from an economic point of view two pump pistons, another pump housing used is, in which the two pump pistons opposite are arranged around a pump camshaft. The use of a However, other pump housing leads to a Increase production costs, because other production tools must be used, as with the pump housing the three-cylinder high-pressure fuel pump.
Es ist daher die Aufgabe der vorliegenden Erfindung, eine Hochdruckkraftstoffpumpe zu schaffen, bei welcher ein Pumpengehäuse für unterschiedliche Pumpenkolbenzahlen der Hochdruckkraftstoffpumpe verwendet werden kann.It Therefore, the object of the present invention is a high pressure fuel pump to provide, in which a pump housing for different pump piston numbers of the high pressure fuel pump can be used.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die beiden Pumpenzylinderköpfe derart auf dem Pumpengehäuse befestigt sind, dass die beiden Pumpenkolben in einem Winkel von 120° zueinander liegen. Dadurch ist es möglich, dass Pumpengehäuse einer Hochdruckkraftstoffpumpe mit drei Pumpenkolben zu verwenden und somit den Aufwand der Konstruktion und Herstellung eines eingeständigen Pumpengehäuses für eine Zweikolbenhochdruckkraftstoffpumpe einzusparen.According to the invention This object is achieved in that the two pump cylinder heads in such a way attached to the pump housing are that the two pump pistons at an angle of 120 ° to each other. This is it is possible that pump housing of a high-pressure fuel pump with To use three pump piston and thus the cost of construction and manufacture of a stationary pump housing to save for a two-piston high-pressure fuel pump.
In Weiterbildung der Erfindung ist eine Zumesseinheit zur Versorgung der beiden Niederdruckzuläufe der Pumpenkolben in einem 120° Winkel zu beiden Pumpenkolben angeordnet. Eine Anordnung in diesem Bereich ist aufgrund des vorhandenen Bauraumes und der guten Erreichbarkeit der beiden Niederdruckzuläufe von Vorteil.In Further development of the invention is a metering unit for supply the two low-pressure inlets of the pump piston in one 120 ° angle to both pump pistons arranged. An arrangement in This area is due to the available space and the good Accessibility of the two low pressure inlets of advantage.
In einer weiteren Ausgestaltung der Erfindung beträgt die Antriebsdrehzahl der Hochdruckkraftstoffpumpe bezüglich der Drehzahl der Brennkraftmaschine 2/3. Durch diese Maßnahme wird eine teilsynchrone Förderung der Pumpe bezüglich des Hochdruckspeichers der Brennkraftmaschine erreicht und somit deren Betrieb gewährleistet.In a further embodiment of the invention is the Drive speed of the high pressure fuel pump with respect the speed of the engine 2/3. By this measure is a semi-synchronous pumping with respect to reaches the high-pressure accumulator of the internal combustion engine and thus ensures their operation.
In Weiterbildung der Erfindung ist die Zumesseinheit in einen Niederdruckblock integriert, welcher auf das Pumpengehäuse aufgesetzt ist und auf der Aufsatzfläche über eine Ausnehmung verfügt, in welcher die beiden Niederdruckzuläufe in einem Winkel größer als 90° zusammenlaufen. Durch die Integration der Zumesseinheit ist eine kompaktere Anordnung möglich, während gleichzeitig durch die Ausnehmung und die Anordnung der beiden Niederdruckzuläufe eine sichere Versorgung der Pumpenzylinderköpfe mit Kraftstoff gewährleistet wird.In Further development of the invention is the metering unit in a low-pressure block integrated, which is placed on the pump housing and on the top surface via a recess features, in which the two low-pressure inlets converge at an angle greater than 90 °. The integration of the metering unit is a more compact arrangement possible while passing through the recess and the arrangement of the two low-pressure inlets a safe Ensuring supply of pump cylinder heads with fuel becomes.
In einer weiteren Ausgestaltung der Erfindung ist in dem Niederdruckblock ein Niederdruckanschluss im 90°Winkel zu der Zumesseinheit angeordnet. Vorteilhaft ist hierbei, dass auch die Kraftstoffzuführung zu der Zumesseinheit sehr kompakt an der Hochdruckkraftstoffpumpe angeordnet ist.In Another embodiment of the invention is in the low-pressure block a low-pressure connection at 90 ° to the metering unit arranged. The advantage here is that the fuel supply to the metering unit very compact on the high pressure fuel pump is arranged.
Weitere, die Erfindung verbessernde Maßnahmen werden nachstehend gemeinsam mit der Beschreibung eines bevorzugten Ausführungsbeispiels der Erfindung anhand einer Figur näher dargestellt.Further, The measures improving the invention will be described below together with the description of a preferred embodiment of the invention with reference to a figure shown in more detail.
Ausführungsbeispielembodiment
Die
einzige Figur zeigt eine Schnittdarstellung der erfindungsgemäßen
Hochdruckkraftstoffpumpe, geschnitten in der Anordnungsebene der Pumpenkolben.
Diese Hochdruckkraftstoffpumpe besteht aus einem Pumpengehäuse
Bei
Betrieb der Brennkraftmaschine wird durch die rotatorische Bewegung
der Pumpennockenwelle und der polygonen Ausbildung
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 19635164 A1 [0002] - DE 19635164 A1 [0002]
Claims (5)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062181A DE102007062181A1 (en) | 2007-12-21 | 2007-12-21 | High pressure fuel pump |
AT08864925T ATE526500T1 (en) | 2007-12-21 | 2008-11-24 | HIGH PRESSURE FUEL PUMP |
CN2008801222844A CN101903639A (en) | 2007-12-21 | 2008-11-24 | High-pressure fuel pump |
EP08864925A EP2235353B1 (en) | 2007-12-21 | 2008-11-24 | High-pressure fuel pump |
PCT/EP2008/066048 WO2009080425A1 (en) | 2007-12-21 | 2008-11-24 | High-pressure fuel pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007062181A DE102007062181A1 (en) | 2007-12-21 | 2007-12-21 | High pressure fuel pump |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007062181A1 true DE102007062181A1 (en) | 2009-06-25 |
Family
ID=40261020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007062181A Withdrawn DE102007062181A1 (en) | 2007-12-21 | 2007-12-21 | High pressure fuel pump |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2235353B1 (en) |
CN (1) | CN101903639A (en) |
AT (1) | ATE526500T1 (en) |
DE (1) | DE102007062181A1 (en) |
WO (1) | WO2009080425A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2530315A1 (en) * | 2011-06-02 | 2012-12-05 | Delphi Technologies Holding S.à.r.l. | Fuel pump lubrication |
CN103089507B (en) * | 2013-01-09 | 2015-06-10 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Double-row six-cylinder radial type common-rail oil feed pump |
DE102018108406A1 (en) | 2017-06-22 | 2018-12-27 | Denso Corporation | High pressure fuel pump and fuel supply system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635164A1 (en) | 1996-08-30 | 1998-03-05 | Bosch Gmbh Robert | Piston pump |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB460327A (en) * | 1935-11-27 | 1937-01-26 | Bristol Aeroplane Co Ltd | Improvements in or relating to fuel-injection pumps for internal-combustion engines |
US2902989A (en) * | 1957-02-04 | 1959-09-08 | Gen Motors Corp | Charge forming means |
DE102004017049A1 (en) * | 2004-04-07 | 2005-10-27 | Robert Bosch Gmbh | Pump for use in braking system, has two pumping units between which feeder line with increased diameter is provided, so that additional absorption volume is made available, where cylinder bore of one unit is similar to that of other unit |
JP4650629B2 (en) * | 2004-11-16 | 2011-03-16 | 株式会社アドヴィックス | Radial plunger pump |
DE102006017301B4 (en) | 2006-04-12 | 2008-03-06 | Siemens Ag | pump |
-
2007
- 2007-12-21 DE DE102007062181A patent/DE102007062181A1/en not_active Withdrawn
-
2008
- 2008-11-24 CN CN2008801222844A patent/CN101903639A/en active Pending
- 2008-11-24 AT AT08864925T patent/ATE526500T1/en active
- 2008-11-24 EP EP08864925A patent/EP2235353B1/en not_active Not-in-force
- 2008-11-24 WO PCT/EP2008/066048 patent/WO2009080425A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19635164A1 (en) | 1996-08-30 | 1998-03-05 | Bosch Gmbh Robert | Piston pump |
Also Published As
Publication number | Publication date |
---|---|
WO2009080425A1 (en) | 2009-07-02 |
EP2235353B1 (en) | 2011-09-28 |
EP2235353A1 (en) | 2010-10-06 |
ATE526500T1 (en) | 2011-10-15 |
CN101903639A (en) | 2010-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130702 |