DE102009002533A1 - Injection pump for internal combustion engine, has piston, which is adjustable in cylinder by eccentric cam of eccentric shaft rotating in housing around axle - Google Patents
Injection pump for internal combustion engine, has piston, which is adjustable in cylinder by eccentric cam of eccentric shaft rotating in housing around axle Download PDFInfo
- Publication number
- DE102009002533A1 DE102009002533A1 DE200910002533 DE102009002533A DE102009002533A1 DE 102009002533 A1 DE102009002533 A1 DE 102009002533A1 DE 200910002533 DE200910002533 DE 200910002533 DE 102009002533 A DE102009002533 A DE 102009002533A DE 102009002533 A1 DE102009002533 A1 DE 102009002533A1
- Authority
- DE
- Germany
- Prior art keywords
- injection pump
- piston
- eccentric
- cylinder
- eccentric shaft
- 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- Withdrawn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
- 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
- F02M59/445—Selection of particular materials
-
- 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
- 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
- F04B1/0439—Supporting or guiding means for the pistons
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht aus von einer Einspritzpumpe für eine Verbrennungskraftmaschine nach der Gattung des Anspruch 1.The The invention is based on an injection pump for an internal combustion engine according to the preamble of claim 1.
Stand der TechnikState of the art
Eine
solche Einspritzpumpe für eine Verbrennungskraftmaschine
ist aus der
Offenbarung der ErfindungDisclosure of the invention
Vorteile der Erfindung Advantages of the invention
Die erfindungsgemäße Vorrichtung mit den Merkmalen gemäß Anspruch 1 hat den Vorteil, dass der Laufring kostengünstiger herstell- und montierbar ist als ein Polygonring. Es ist insbesondere nicht mehr erforderlich, den Laufring dem oder den Kolben in einer definierten Relativerdrehung zuzuordnen. Seine Montage lässt sich dadurch einfacher automatisieren.The inventive device with the features according to claim 1 has the advantage that the raceway cheaper producible and mountable than a polygon ring. In particular, it is no longer necessary, the raceway or assign the piston in a defined Relativerdrehung. His Assembly is easier to automate.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Vorrichtung angegeben.In the dependent claims are advantageous embodiments and further developments of the device according to the invention specified.
Durch die Ausgestaltung nach Anspruch 2 wird der Vorteil erzielt, dass sich die spezifische Flächenpressung vermindert, mit der Kolbenfuß den Laufring berührt. Dadurch können größere Pumpendrücke erzielt werden.By the embodiment according to claim 2, the advantage is achieved that the specific surface pressure decreases, with the Piston foot touches the race. Thereby can larger pump pressures are achieved.
Die Ausgestaltung nach Anspruch 3 hat neben einer guten Langlebigkeit den Vorteil einer platzsparenden Bauweise. Sie verbessert zudem die Möglichkeiten, hohe Pumpendrücke von bis zu 2.000 bar erzeugen zu können.The Embodiment according to claim 3 has in addition to a good longevity the advantage of a space-saving design. It also improves the possibilities, high pump pressures of up to 2,000 bar to generate.
Die Ausgestaltung nach Anspruch 4 hat den Vorteil, dass sich die Einspritzpumpe leicht und gegebenenfalls mit Hilfe von Industrierobotern montieren lässt.The Embodiment according to claim 4 has the advantage that the injection pump easy and if necessary with the help of industrial robots can be mounted.
Die Ausgestaltung nach Anspruch 5 hat den Vorteil, dass sich der Laufring sehr kostengünstig in der gewünschten Qualität als Massenteil auf einem Automaten erzeugen lässt. Bezüglich der Laufringe, die auf dem Exzenter zur Anwendung gelangen, besteht dabei die Möglichkeit, die Laufspur zu härten oder zu vergüten, um die Dauerhaltbarkeit noch weiter zu verbessern. Ein Lagerrücken aus Metall und insbesondere aus Stahl neigt nicht zum Relaxieren. Falls der Laufring ortsfest in eine Bohrung des Gehäuses eingepresst wird, ist es daher leicht zu gewährleisten, dass das enthaltene Gleitlager der Exzenterwelle dauerhaft in der vorherbestimmten Weise zugeordnet ist. Für einen dauerhaften und leichten Lauf der Exzenterwelle ist das sehr wichtig.The Embodiment according to claim 5 has the advantage that the raceway very cost-effective in the desired quality as a mass part on a machine can generate. In terms of the races that are used on the eccentric, consists doing the ability to harden the track or to improve their durability. A bearing back of metal and in particular of steel tends not for relaxation. If the race stationary in a hole is pressed in the housing, it is therefore easy to ensure that the included plain bearing of the eccentric shaft permanently in the assigned in a predetermined manner. For a lasting and easy running of the eccentric shaft is very important.
Die Ausgestaltung nach Anspruch 6 hat den Vorteil, dass sich der Schmierstoffbedarf während der bestimmungsgemäßen Verwendung verringert und dass gute Notlaufeigenschaften erzielt werden.The Embodiment according to claim 6 has the advantage that the lubricant requirement during the intended use reduced and that good emergency running properties are achieved.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird in der nachfolgenden Beschreibung näher erläutert. Es zeigen:One Embodiment of the invention is in the drawing and will become more apparent in the following description explained. Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
In den Zeichnungen bezeichnen übereinstimmende Bezugszeichen übereinstimmende Funktionsteile.In In the drawings, corresponding reference numerals indicate corresponding ones Functional parts.
Am
Eingang und am Ausgang des Zylinders
Auf
dem Exzenter
Der
Laufring
Das
Gleitlager
Das
Gleitlager
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 19612412 B4 [0002] - DE 19612412 B4 [0002]
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910002533 DE102009002533A1 (en) | 2009-04-21 | 2009-04-21 | Injection pump for internal combustion engine, has piston, which is adjustable in cylinder by eccentric cam of eccentric shaft rotating in housing around axle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910002533 DE102009002533A1 (en) | 2009-04-21 | 2009-04-21 | Injection pump for internal combustion engine, has piston, which is adjustable in cylinder by eccentric cam of eccentric shaft rotating in housing around axle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009002533A1 true DE102009002533A1 (en) | 2010-10-28 |
Family
ID=42779485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910002533 Withdrawn DE102009002533A1 (en) | 2009-04-21 | 2009-04-21 | Injection pump for internal combustion engine, has piston, which is adjustable in cylinder by eccentric cam of eccentric shaft rotating in housing around axle |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009002533A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013098300A1 (en) * | 2011-12-27 | 2013-07-04 | Robert Bosch Gmbh | High-pressure fuel pump for a fuel injection system |
EP2469088A3 (en) * | 2010-12-23 | 2014-01-22 | Robert Bosch GmbH | Eccentric drive for at least one piston of a piston pump |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612412B4 (en) | 1996-03-28 | 2006-07-06 | Siemens Ag | Control for a pressurized fluid supply system, in particular for the high pressure in a fuel injection system |
-
2009
- 2009-04-21 DE DE200910002533 patent/DE102009002533A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612412B4 (en) | 1996-03-28 | 2006-07-06 | Siemens Ag | Control for a pressurized fluid supply system, in particular for the high pressure in a fuel injection system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2469088A3 (en) * | 2010-12-23 | 2014-01-22 | Robert Bosch GmbH | Eccentric drive for at least one piston of a piston pump |
WO2013098300A1 (en) * | 2011-12-27 | 2013-07-04 | Robert Bosch Gmbh | High-pressure fuel pump for a fuel injection system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |