DE102011007686A1 - Fuel delivery device for a fuel injection device of an internal combustion engine - Google Patents
Fuel delivery device for a fuel injection device of an internal combustion engine Download PDFInfo
- Publication number
- DE102011007686A1 DE102011007686A1 DE201110007686 DE102011007686A DE102011007686A1 DE 102011007686 A1 DE102011007686 A1 DE 102011007686A1 DE 201110007686 DE201110007686 DE 201110007686 DE 102011007686 A DE102011007686 A DE 102011007686A DE 102011007686 A1 DE102011007686 A1 DE 102011007686A1
- Authority
- DE
- Germany
- Prior art keywords
- drive shaft
- pump elements
- fuel
- delivery device
- fuel delivery
- 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- Withdrawn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
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Classifications
-
- 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
- F04B1/0413—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
- F02M59/02—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
- 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
- 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
- F02M63/0265—Pumps feeding common rails
- F02M63/027—More than one high pressure pump feeding a single common rail
-
- 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
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
-
- 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
- F04B1/06—Control
- F04B1/07—Control by varying the relative eccentricity between two members, e.g. a cam and a drive shaft
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
Die Kraftstofffördereinrichtung für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine weist mehrere Pumpenelemente (14) auf, durch die Kraftstoff in einen Hochdruckbereich (16) gefördert wird. Die Pumpenelemente (14) werden durch jeweils einen oder einen gemeinsamen Mehrfachnocken (42) einer rotierenden Antriebswelle (44) angetrieben und führen bei der Drehbewegung der Antriebswelle (44) aufeinander folgend Saug- und Förderhübe aus. Der gemeinsame Mehrfachnocken oder die Mehrfachnocken sind als 1800.
Doppelnocken (42) ausgebildet. Der gemeinsame Doppelnocken (42) oder die Doppelnocken (42) sind derart asymmetrisch ausgebildet, dass sich die jeweiligen Förderhübe (A) der Pumpenelemente (14) über einen Drehwinkelbereich (Ω2) der Antriebswelle (44) erstrecken, der größer ist als der Drehwinkelbereich (Ω1) der Antriebswelle (44), über den sich die jeweiligen Saughübe (B) der Pumpenelemente (14) erstrecken.The fuel delivery device for a fuel injection device of an internal combustion engine has a plurality of pump elements (14) through which fuel is conveyed into a high-pressure region (16). The pump elements (14) are driven by one or a common multiple cam (42) of a rotating drive shaft (44) and perform during the rotational movement of the drive shaft (44) successively suction and delivery strokes. The common multi-cam or multi-cam are as 1800.
Double cam (42) formed. The common double cam (42) or the double cam (42) are formed asymmetrically such that the respective delivery strokes (A) of the pump elements (14) extend over a rotation angle range (Ω2) of the drive shaft (44) which is greater than the rotation angle range ( Ω1) of the drive shaft (44) over which the respective suction strokes (B) of the pump elements (14) extend.
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Kraftstofffördereinrichtung für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine nach der Gattung des Anspruchs 1.The invention relates to a fuel delivery device for a fuel injection device of an internal combustion engine according to the preamble of
Eine solche Kraftstofffördereinrichtung ist durch die
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Kraftstofffördereinrichtung mit den Merkmalen gemäß Anspruch 1 hat demgegenüber den Vorteil, dass die Belastung des oder der Mehrfachnocken verringert ist, da anteilig für die Förderhübe ein größerer Drehwinkelbereich der Antriebswelle zur Verfügung steht. Entsprechend ist die Haltbarkeit des oder der Mehrfachnocken verbessert.The fuel delivery device according to the invention with the features according to
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Kraftstofffördereinrichtung angegeben. Durch die Ausbildung gemäß Anspruch 3 ist sichergestellt, dass zumindest annähernd die gleiche Kraftstoffmenge durch die Pumpenelemente in den Hochdruckbereich gefördert wird wie bei der bekannten Kraftstofffördereinrichtung mit zwei Pumpenelementen und Dreifachnocken. Durch die Ausbildung gemäß Anspruch 4 ist erreicht, dass für die Saughübe der Pumpenelemente zumindest annähernd derselbe Drehwinkelbereich der Antriebswelle zur Verfügung steht wie bei der bekannten Kraftstofffördereinrichtung mit Dreifachnocken, so dass die Befüllung der Pumpenelemente nicht verschlechtert wird. Für die Förderhübe der Pumpenelemente steht zumindest annähernd der doppelte Drehwinkelbereich der Antriebswelle wie bei der bekannten Kraftstofffördereinrichtung mit Dreifachnocken zur Verfügung, so dass die Belastung des Doppelnockens wesentlich reduziert ist gegenüber einem Dreifachnocken. Durch die Ausbildung gemäß Anspruch 6 ist eine gleichmäßige Befüllung der Pumpenelemente bei deren Saughüben ermöglicht, da diese sich nicht gegenseitig beeinflussen. Durch die Ausbildung gemäß Anspruch 7 kann die Entstehung von Druckschwankungen im Hochdruckbereich gering gehalten werden. Durch die Ausbildung gemäß Anspruch 8 oder Anspruch 9 wird auf einfache Weise eine gleichmäßige Kraftstoffförderung ermöglicht.In the dependent claims advantageous refinements and developments of the fuel delivery device according to the invention are given. The embodiment according to claim 3 ensures that at least approximately the same amount of fuel is conveyed through the pump elements into the high pressure region as in the known fuel delivery device with two pump elements and triple cams. The embodiment according to claim 4 ensures that at least approximately the same rotational angle range of the drive shaft is available for the suction strokes of the pump elements as in the known fuel delivery device with triple cams, so that the filling of the pump elements is not impaired. For the delivery strokes of the pump elements is at least approximately twice the rotational angle range of the drive shaft as in the known fuel conveyor with triple cam available, so that the load of the double cam is substantially reduced compared to a triple cam. Due to the design according to claim 6, a uniform filling of the pump elements in their suction strokes is possible because they do not affect each other. Due to the design according to claim 7, the formation of pressure fluctuations in the high pressure region can be kept low. The embodiment according to claim 8 or claim 9 enables a uniform fuel delivery in a simple manner.
Zeichnungdrawing
Drei Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert Es zeigen
Beschreibung der AusführungsbeispieleDescription of the embodiments
In
Die Kraftstofffördereinrichtung kann eine zwischen der Förderpumpe
Jedes Pumpenelement
Bei der Kraftstofffördereinrichtung sind insbesondere drei Pumpenelemente
Die Doppelnocken
Die Antriebswelle
In
Bei einem in
Die Förderung der Pumpenelemente
Die Pumpenelemente
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10237586 A1 [0002] DE 10237586 A1 [0002]
Claims (12)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110007686 DE102011007686A1 (en) | 2011-04-19 | 2011-04-19 | Fuel delivery device for a fuel injection device of an internal combustion engine |
PCT/EP2012/053182 WO2012143157A1 (en) | 2011-04-19 | 2012-02-24 | Fuel delivery device for a fuel injection device of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110007686 DE102011007686A1 (en) | 2011-04-19 | 2011-04-19 | Fuel delivery device for a fuel injection device of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011007686A1 true DE102011007686A1 (en) | 2012-10-25 |
Family
ID=45757427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110007686 Withdrawn DE102011007686A1 (en) | 2011-04-19 | 2011-04-19 | Fuel delivery device for a fuel injection device of an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102011007686A1 (en) |
WO (1) | WO2012143157A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135313A1 (en) * | 2013-03-07 | 2014-09-12 | Robert Bosch Gmbh | High-pressure pump for a fuel injection system |
WO2014202266A1 (en) * | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | High-pressure pump |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201502686D0 (en) * | 2015-02-18 | 2015-04-01 | Finishing Brands Uk Ltd | High pressure pump |
CN108374740A (en) * | 2018-01-29 | 2018-08-07 | 中国第汽车股份有限公司 | A kind of cam and oil feed pump plunger driving device for driving fuel feeding pump plunger |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10237586A1 (en) | 2002-08-16 | 2004-02-26 | Robert Bosch Gmbh | Fuel injection installation for IC engine, such as diesel engine with high pressure pump for fuel delivery to buffer container, whose piston is driven from engine camshaft |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1408171A (en) * | 1963-11-04 | 1965-08-13 | Inst Francais Du Petrole | Double injection device |
US3827419A (en) * | 1969-12-30 | 1974-08-06 | Nippon Denso Co | Fuel injection means for a diesel engine |
JPH10231763A (en) * | 1997-02-18 | 1998-09-02 | Zexel Corp | Fuel injection pump |
SE518040C2 (en) * | 1997-03-17 | 2002-08-20 | Volvo Lastvagnar Ab | Four-stroke diesel engine with catalytic converter |
DE19955778A1 (en) * | 1999-11-19 | 2001-06-13 | Siemens Ag | Multi-cylinder piston pump |
-
2011
- 2011-04-19 DE DE201110007686 patent/DE102011007686A1/en not_active Withdrawn
-
2012
- 2012-02-24 WO PCT/EP2012/053182 patent/WO2012143157A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10237586A1 (en) | 2002-08-16 | 2004-02-26 | Robert Bosch Gmbh | Fuel injection installation for IC engine, such as diesel engine with high pressure pump for fuel delivery to buffer container, whose piston is driven from engine camshaft |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135313A1 (en) * | 2013-03-07 | 2014-09-12 | Robert Bosch Gmbh | High-pressure pump for a fuel injection system |
CN105026753A (en) * | 2013-03-07 | 2015-11-04 | 罗伯特·博世有限公司 | High-pressure pump for a fuel injection system |
CN105026753B (en) * | 2013-03-07 | 2018-06-05 | 罗伯特·博世有限公司 | For the high-pressure pump of fuel injection system |
WO2014202266A1 (en) * | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | High-pressure pump |
US10060420B2 (en) | 2013-06-21 | 2018-08-28 | Robert Bosch Gmbh | High-pressure pump |
Also Published As
Publication number | Publication date |
---|---|
WO2012143157A1 (en) | 2012-10-26 |
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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: 20131101 |