DE102008002012A1 - Injection pump for supplying diesel fuel in internal combustion engine of motor vehicle, has bracket radially supported on edge by rollers at inner and outer sides of bracket in transversely displaceable manner - Google Patents
Injection pump for supplying diesel fuel in internal combustion engine of motor vehicle, has bracket radially supported on edge by rollers at inner and outer sides of bracket in transversely displaceable manner Download PDFInfo
- Publication number
- DE102008002012A1 DE102008002012A1 DE200810002012 DE102008002012A DE102008002012A1 DE 102008002012 A1 DE102008002012 A1 DE 102008002012A1 DE 200810002012 DE200810002012 DE 200810002012 DE 102008002012 A DE102008002012 A DE 102008002012A DE 102008002012 A1 DE102008002012 A1 DE 102008002012A1
- Authority
- DE
- Germany
- Prior art keywords
- edge
- axis
- piston
- injection pump
- cup
- 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- Withdrawn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
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- 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
- F04B1/0408—Pistons
-
- 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
Abstract
Description
Technisches GebietTechnical area
Die Erfindung geht aus von einer Einspritzpumpe, insbesondere von einer Einspritzpumpe nach dem Oberbegriff von Anspruch 1.The The invention is based on an injection pump, in particular of a Injection pump according to the preamble of claim 1.
Stand der TechnikState of the art
Eine
solche Einspritzpumpe ist aus der
Voraussetzung für eine korrekte Funktion der Einspritzpumpe sind die Druckfedern, die eine Anlageberühung zwischen dem Kolben und der ihm zugewandten Außenseite des Exzenters bewirken und in diesem Zusammenhang vor allem das Ansaugen von Kraftstoff in den Pumpenraum. Die Druckfedern sind sehr voluminös und benötigen daher sehr viel Raum. Außerdem ist die Herstellung und Montage der Druckfedern, die für eine ordnungsgemäße Funktion vorgespannt sein müssen, unfallträchtig und sehr aufwändig. Es besteht daher der Wunsch, auf den Einbau derartiger Federn verzichten zu können.requirement for a correct function of the injection pump are the Compression springs, which make a contact between the piston and cause it facing the outside of the eccentric and in this context, especially the suction of fuel in the pump room. The springs are very voluminous and therefore require a lot of space. Besides that is the manufacture and assembly of compression springs for a must be biased to proper function, accident prone and very expensive. It exists Therefore, the desire to dispense with the installation of such springs can.
Offenbarung der ErfindungDisclosure of the invention
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Einspritzpumpe mit den Merkmalen gemäß Anspruch 1 hat den Vorteil, dass keine vorgespannten Druckfedern mehr für die korrekte Funktion benötigt werden. Dadurch ergibt sich eine Platzersparnis, ein verminderter Montageaufwand und der Wegfall einer Störungsquelle. Auch ist der bisher für die andauernde Verformung der Federn benötigte Energieaufwand nicht mehr erforderlich.The injection pump according to the invention with the features according to claim 1 has the advantage that no prestressed Compression springs more needed for proper function become. This results in a space savings, a reduced Assembly effort and the elimination of a source of interference. Also is the hitherto for the ongoing deformation of the springs energy required no longer required.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltungen und Weiterbildungen der erfindungsgemäßen Einspritzpumpe angegeben.In the dependent claims are advantageous embodiments and further developments of the injection pump according to the invention specified.
Durch die Ausbildung gemäß Anspruch 2 wird eine Möglichkeit erhalten, einem einzigen Exzenter mehrere Einspritzpumpen in Umfangsrichtung verteilt zuzuordnen, ohne dass die bisher benötigten Federn für deren Verwendung nötig sind.By The training according to claim 2 becomes an option received, distributed a single eccentric several injection pumps in the circumferential direction assign, without the springs previously required for their use is necessary.
Durch die Ausbildung gemäß Anspruch 3 ergibt sich eine statisch stabilere Zuordnung der Achse des Kolbens zu der im Arbeitstakt besonders belasteten, exzentrischen Innenfläche der Tasse. Zusätzlich kann der Kolben durch den Bügel parallel zu seiner Bewegungsrichtung geführt und dadurch seine eigene Führung von Querkräften entlastet sein, die aus der Kraftübertragung des Exzenters resultieren.By the training according to claim 3 results in a statically more stable assignment of the axis of the piston to the working stroke particularly loaded, eccentric inner surface of the cup. In addition, the piston can be parallel through the bracket led to his direction of movement and thereby his own Leadership of lateral forces to be relieved, the the power transmission of the eccentric result.
Durch die Ausbildung gemäß Anspruch 4 eröffnet die Möglichkeit, den Kolben drehrichtungstunabhängig durch die Antriebswelle zu führen und von Querkräften zu entlasten. Für eine neutrale Verwendbarkeit der Einspritzpumpe unter den verschiedensten Anwendungsbedingungen ist das von großem Vorteil.By the training opens according to claim 4 the possibility of the piston direction of rotation independent through the drive shaft and by lateral forces to relieve. For a neutral usability of the injection pump This is a great advantage under a wide range of application conditions.
Durch die Ausbildung gemäß Anspruch 5 wird verhindert, dass von der Antriebselle achsparalelle Querkräfte auf den Kolben übertragen werden können. Dies ist für die Dauerhaltbarkeit von großem Vorteil.By the training according to claim 5 is prevented that from the drive axle axis-parallel transverse forces can be transmitted to the piston. This is for the durability of great advantage.
Durch die Ausbildung gemäß Anspruch 6 wird eine besonders kostengünstig herstellbare Tasse gezeigt, die den vorliegenden Anforderungen genügt.By the training according to claim 6 becomes a special cost-manufacturable cup shown the present Requirements are sufficient.
Durch die Ausbildung gemäß Anspruch 7 wird eine weitere vorteilhaft herstellbare Tasse gezeigt, die es ermöglicht, je Umdrehung der Antriebswelle zwei Pumpenhübe zu erzielen und auf diese Weise die Förderleistung der Einspritzpumpe zu verdoppeln.By The training according to claim 7 will be another shown advantageously producible cup, which allows per revolution of the drive shaft to achieve two pump strokes and in this way the delivery rate of the injection pump to double.
Durch die Ausbildung gemäß Anspruch 8 wird eine Bauform gezeigt, die sich durch eine besonders gute Leichtgängigkeit und einen besonders geringen Verschleiß auszeichnet.By The embodiment according to claim 8 becomes a design shown, which is characterized by a particularly good smoothness and a particularly low wear characterizes.
Zeichnungdrawing
Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. Sie werden in der nachfolgend näher erläutert. Es zeigen:Several Embodiments of the invention are in the drawing shown. They are explained in more detail below. Show it:
Beschreibung der AusführungsbeispieleDescription of the embodiments
Die
in
Die
Einspritzpumpe umfasst zu diesem Zweck einen mit einem Gehäuse
Der
Vorsprung bildet erfindungsgemäß einen Bestandteil
einer Tasse
Die
Tasse
Das
Ende des Kolbens
Die
Antriebswelle
Der
Rand
Durch
die Gestaltung des Randes
Der
Rand
Der
Rand
Grundsätzlich
kann der Kolben
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 19515191 A1 [0002] DE 19515191 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810002012 DE102008002012A1 (en) | 2008-05-27 | 2008-05-27 | Injection pump for supplying diesel fuel in internal combustion engine of motor vehicle, has bracket radially supported on edge by rollers at inner and outer sides of bracket in transversely displaceable manner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810002012 DE102008002012A1 (en) | 2008-05-27 | 2008-05-27 | Injection pump for supplying diesel fuel in internal combustion engine of motor vehicle, has bracket radially supported on edge by rollers at inner and outer sides of bracket in transversely displaceable manner |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008002012A1 true DE102008002012A1 (en) | 2009-12-03 |
Family
ID=41253533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810002012 Withdrawn DE102008002012A1 (en) | 2008-05-27 | 2008-05-27 | Injection pump for supplying diesel fuel in internal combustion engine of motor vehicle, has bracket radially supported on edge by rollers at inner and outer sides of bracket in transversely displaceable manner |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008002012A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19515191A1 (en) | 1994-04-28 | 1995-11-02 | Nippon Denso Co | High pressure fuel pump |
-
2008
- 2008-05-27 DE DE200810002012 patent/DE102008002012A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19515191A1 (en) | 1994-04-28 | 1995-11-02 | Nippon Denso Co | High pressure fuel pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |