DE102008040122A1 - Piston fuel pump for an internal combustion engine - Google Patents
Piston fuel pump for an internal combustion engine Download PDFInfo
- Publication number
- DE102008040122A1 DE102008040122A1 DE200810040122 DE102008040122A DE102008040122A1 DE 102008040122 A1 DE102008040122 A1 DE 102008040122A1 DE 200810040122 DE200810040122 DE 200810040122 DE 102008040122 A DE102008040122 A DE 102008040122A DE 102008040122 A1 DE102008040122 A1 DE 102008040122A1
- Authority
- DE
- Germany
- Prior art keywords
- drive shaft
- cam
- fuel pump
- piston
- piston 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- Withdrawn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
- F02M59/10—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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
Abstract
Eine Kolben-Kraftstoffpumpe für eine Brennkraftmaschine umfasst ein Gehäuse, mehrere in Reihe angeordnete Zylinder, welche durch baugleiche Fördermodule gebildet sind, die in entsprechende Aufnahmeöffnungen in dem Gehäuse eingesteckt sind, und eine gemeinsame Antriebswelle (24) für die Fördermodule, welche für jedes Fördermodul einen Nockenabschnitt (50a, 50b) aufweist. Es wird vorgeschlagen, dass der Nockenabschnitt (50a, 50b) eines Fördermoduls zwei entgegengesetzt angeordnete gleiche Nocken (52) aufweist, deren höchste Erhebungen durch eine Nockenachse (54a, 54b) miteinander verbunden sind, und dass die Nockenachsen (54a, 54b) der Nockenabschnitte (50a, 50b) um die Mittelachse (56) der Antriebswelle (24) so zueinander verkippt sind, dass alle Nocken (52), in Umfangsrichtung der Antriebswelle (24) gesehen, gleichmäßig verteilt sind.A piston fuel pump for an internal combustion engine comprises a housing, a plurality of cylinders arranged in series, which are formed by identical delivery modules, which are inserted into corresponding receiving openings in the housing, and a common drive shaft (24) for the delivery modules, which for each delivery module Cam portion (50a, 50b). It is proposed that the cam portion (50a, 50b) of a conveyor module comprises two oppositely disposed like cams (52) whose highest peaks are interconnected by a cam axis (54a, 54b) and that the cam axes (54a, 54b) of the cam portions (50a, 50b) about the central axis (56) of the drive shaft (24) are tilted to each other so that all the cams (52), seen in the circumferential direction of the drive shaft (24), are evenly distributed.
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Kolben-Kraftstoffpumpe nach dem Oberbegriff des Anspruchs 1.The The invention relates to a piston fuel pump according to the preamble of claim 1.
Eine
Kolben-Kraftstoffpumpe der eingangsgenannten Art ist beispielsweise
aus der
Offenbarung der ErfindungDisclosure of the invention
Aufgabe der vorliegenden Erfindung ist es, eine Kolben-Kraftstoffpumpe zu schaffen, welche den Kraftstoff möglichst gleichmäßig fördert und eine lange Lebensdauer aufweist.task The present invention is to a piston fuel pump to create the fuel as evenly as possible promotes and has a long life.
Diese Aufgabe wird durch eine Kolben-Kraftstoffpumpe mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in Unteransprüchen angegeben. Darüber hinaus finden sich für die Erfindung wichtige Merkmale in der nachfolgenden Beschreibung und der Zeichnung. Dabei können diese Merkmale für die Erfindung sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen wichtig sein, ohne dass hierauf nochmals explizit hingewiesen wird.These Task is by a piston fuel pump with the features of claim 1. Advantageous developments of Invention are specified in subclaims. About that In addition, find important features for the invention in the following description and the drawing. It can these features for the invention both in isolation as well as being important in different combinations without that This is again explicitly pointed out.
Durch die im Grunde symmetrische Anordnung der beiden Nocken eines Nockenabschnitts und die in Umfangsrichtung der Antriebswelle gesehen gleichmäßige Verteilung der Nocken aller Nockenabschnitte wird erreicht, dass die auf die Antriebswelle wirkenden Lasten, insbesondere Biegemomente, vergleichsweise gering sind, wodurch die Lebensdauer der erfindungsgemäßen Kolben-Kraftstoffpumpe hoch ist. Außerdem wird durch die Anordnung der Nocken ein gleichmäßiger Förderstrom erreicht, mit vergleichsweise geringen Druckspitzen, was ebenfalls der Lebensdauer der Kolben-Kraftstoffpumpe zugute kommt.By the basically symmetrical arrangement of the two cams of a cam portion and seen in the circumferential direction of the drive shaft uniform Distribution of the cams of all cam sections is achieved the loads acting on the drive shaft, in particular bending moments, are relatively low, whereby the life of the invention Piston fuel pump is high. In addition, by the Arrangement of the cam a uniform flow achieved, with comparatively low pressure peaks, which also the service life of the piston fuel pump benefits.
Eine Laufrolle zwischen einem Kolben eines Fördermoduls und der Antriebswelle reduziert die auf den Kolben wirkenden Querkräfte und den Verschleiß an der Antriebswelle. Auch hierdurch wird die Lebensdauer verbessert.A Roller between a piston of a conveyor module and the drive shaft reduces the transverse forces acting on the piston and the wear on the drive shaft. Also by this the life is improved.
Bei zwei Zylindern sind die Nockenachsen vorzugsweise um neunzig Grad zueinander verkippt, wohingegen bei drei Zylindern die Nockenachsen zueinander um sechzig Grad verkippt sind. Hierdurch wird die erfindungsgemäß vorgesehene gleichmäßige Verteilung der Nocken in Umfangsrichtung erreicht.at two cylinders, the cam axes are preferably ninety degrees tilted to each other, whereas in three cylinders, the cam axes tilted to each other by sixty degrees. As a result, the invention provided even distribution of the cams in the circumferential direction reached.
Die Integration der Antriebswelle in die Brennkraftmaschine spart Platz, wohingegen eine außerhalb der Brennkraftmaschine angeordnete Antriebswelle die Einsatzflexibilität und die Wartbarkeit der Kolben-Kraftstoffpumpe verbessert.The Integration of the drive shaft in the internal combustion engine saves space, whereas one outside the engine Drive shaft the versatility and maintainability of Piston fuel pump improved.
Nachfolgend werden Ausführungsformen der Erfindung unter Bezugnahme auf die beiliegende Zeichnung erläutert. In der Zeichnung zeigen:following Be embodiments of the invention with reference explained in the accompanying drawings. In the drawing demonstrate:
Eine
Kolben-Kraftstoffpumpe trägt in den
In
dem Pumpengehäuse
Jedes
Fördermodul
Zu
einem Fördermodul
Die
Ausgestaltung der für beide Fördermodule
Zwischen
Kolben
Eine
andere Ausführungsform einer Kolben-Kraftstoffpumpe
Bei
der Kolben-Kraftstoffpumpe
Die
vorab beschriebenen Ausführungsbeispiele von Kolben-Kraftstoffpumpen
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 10322604 A1 [0002] - DE 10322604 A1 [0002]
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810040122 DE102008040122A1 (en) | 2008-07-03 | 2008-07-03 | Piston fuel pump for an internal combustion engine |
PCT/EP2009/055353 WO2010000522A1 (en) | 2008-07-03 | 2009-05-04 | Piston fuel pump for an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810040122 DE102008040122A1 (en) | 2008-07-03 | 2008-07-03 | Piston fuel pump for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008040122A1 true DE102008040122A1 (en) | 2010-01-07 |
Family
ID=40974652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810040122 Withdrawn DE102008040122A1 (en) | 2008-07-03 | 2008-07-03 | Piston fuel pump for an internal combustion engine |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008040122A1 (en) |
WO (1) | WO2010000522A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8120060B2 (en) | 2005-11-01 | 2012-02-21 | Massachusetts Institute Of Technology | Monolithically integrated silicon and III-V electronics |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322604A1 (en) | 2003-05-20 | 2004-12-09 | Robert Bosch Gmbh | Set of piston pumps, in particular fuel pumps for internal combustion engines with direct fuel injection |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2639036B2 (en) * | 1988-12-28 | 1997-08-06 | 株式会社デンソー | Variable discharge high pressure pump |
JPH09222056A (en) * | 1996-02-19 | 1997-08-26 | Denso Corp | Fuel injection device |
JP4467469B2 (en) * | 2005-06-08 | 2010-05-26 | ボッシュ株式会社 | Fuel supply pump and tappet structure |
-
2008
- 2008-07-03 DE DE200810040122 patent/DE102008040122A1/en not_active Withdrawn
-
2009
- 2009-05-04 WO PCT/EP2009/055353 patent/WO2010000522A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10322604A1 (en) | 2003-05-20 | 2004-12-09 | Robert Bosch Gmbh | Set of piston pumps, in particular fuel pumps for internal combustion engines with direct fuel injection |
Also Published As
Publication number | Publication date |
---|---|
WO2010000522A1 (en) | 2010-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110201 |