DE102008002105A1 - Injection pump for supplying diesel fuel to internal combustion engine in motor vehicle, has eccentric tappet radially and slidingly supported at edge of cup at inner side and outer side, where tappet is opened parallel to axis - Google Patents
Injection pump for supplying diesel fuel to internal combustion engine in motor vehicle, has eccentric tappet radially and slidingly supported at edge of cup at inner side and outer side, where tappet is opened parallel to axis Download PDFInfo
- Publication number
- DE102008002105A1 DE102008002105A1 DE200810002105 DE102008002105A DE102008002105A1 DE 102008002105 A1 DE102008002105 A1 DE 102008002105A1 DE 200810002105 DE200810002105 DE 200810002105 DE 102008002105 A DE102008002105 A DE 102008002105A DE 102008002105 A1 DE102008002105 A1 DE 102008002105A1
- Authority
- DE
- Germany
- Prior art keywords
- edge
- cup
- axis
- injection pump
- radially
- 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- Withdrawn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
- 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
- F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
-
- 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
-
- 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
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
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
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 sind die Druckfedern. Diese sind sehr voluminös gestaltet und sie benötigen daher sehr viel Raum. Außerdem ist die Herstellung und Montage der Druckfedern aufwändig. Sie müssen in vorgespanntem Zustand einbaut werden. Es besteht daher der Wunsch, auf den Einbau derartiger Federn verzichten zu können.requirement for a correct function are the compression springs. These are very voluminous designed and they need therefore a lot of space. In addition, the production and Assembly of the pressure springs consuming. You need to be installed in a prestressed condition. There is therefore a desire to be able to dispense with the installation of such springs.
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 Druckfedern für eine ordnungsgemäße Funktion der Einspritzpumpe nicht mehr benötigt werden. Damit entfallen auch die Probleme des für den Einbau benötigten Bauraums, der Montage und der Materialermüdung mit unzureichender Elastizität infolge andauernder Belastung bei einer erhöhten Temperaturbeanspruchung. Außerdem ist es nicht mehr erforderlich, während der normalen Verwendung der Einspritzpumpe andauernd eine vorgespannte Druckfeder zusammenzudrücken und nachfolgend wieder zu entlasten. Daraus resultiert eine erhebliche Kraftstoffersparnis.The injection pump according to the invention with the features according to claim 1 has the advantage that compression springs for the proper functioning of the Injection pump is no longer needed. This accounts also the problems of the installation needed Space, assembly and material fatigue with inadequate Elasticity due to prolonged stress at an elevated level Temperature stress. In addition, it is no longer necessary during normal use of the injection pump constantly to compress a preloaded compression spring and subsequently relieve again. This results in a significant fuel economy.
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 besonders kostengünstig verfügbare Bauform gezeigt, die sehr einfach zu montieren und zu demontieren ist.By the training according to claim 2 becomes a special cost-effectively available design shown very easy to assemble and disassemble.
Durch die Ausbildung gemäß Anspruch 3 wird eine Bauform gezeigt, die eine extrem gute Funktionssicherheit und Langlebigkeit aufweist und es gestattet, höchste Pumpendrücke von mehr als 2000 bar zu realisieren.By The embodiment according to claim 3 becomes a design demonstrated an extremely good reliability and longevity and allows highest pump pressures to realize more than 2000 bar.
Durch die Ausbildung gemäß Anspruch 4 wird eine Bauform gezeigt, die es vermeidet, dass beim Arbeitshub der Einspritzpumpe achsparallele Kräfte von dem den Gleitschuhen in die Führung des Kolbens eingeleitet werden können.By The embodiment according to claim 4 becomes a design shown that it avoids that during the working stroke of the injection pump axis-parallel forces of the sliding shoes in the leadership of the piston can be initiated.
Durch die Ausbildung gemäß Anspruch 5 wird eine Bauform beansprucht, die eine besonders kostengünstige Herstellung der Tasse gestattet.By The embodiment according to claim 5 is a design claims that a particularly cost-effective production the cup allowed.
Die Ausbildung gemäß Anspruch 6 nimmt Bezug auf eine Einspritzpumpe, bei der mehrere in Umfangsrichtung verteilte Zylinderköpfe einer einzigen, zentral angeordneten Antriebswelle mit einem einzigen Exzenter zugeordnet sind, die parallel zueinander von der Antriebswelle angetrieben werden. Die von der Einspritzpumpe geförderte Kraftstoffmenge lässt sich so nach Bedarf vergrößern und an bestimmte Erfordernisse anpassen, ohne das Grundkonzept der Einspritzpumpe zu verlassen. Diese kann vielmehr baukastenartig aus verschiedenen Teilkomponenten zusammengesetzt und zur Anwendung gebracht werden.The Training according to claim 6 makes reference to a Injection pump, in which several circumferentially distributed cylinder heads a single, centrally located drive shaft with a single Eccentric are assigned, which are parallel to each other from the drive shaft are driven. The pumped by the injection pump Fuel quantity can be increased as needed and adapt to specific needs, without the basic concept of To leave injection pump. This can rather like a box composed of different subcomponents and for use to be brought.
Zeichnungdrawing
Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt. Sie werden nachfolgend näher erläutert. Es zeigen:Several Embodiments of the invention are in the drawing shown. They are explained in more detail below. Show it:
Die
in
Die
in
Beschreibung der AusführungsbeispieleDescription of the embodiments
Die
in
In der nachfolgenden Detailbeschreibung bezeichnen übereinstimmende Bezugszeichen der Figuren übereinstimmende Gegenstände.In The following detailed description refers to the same Reference numerals of the figures matching objects.
Die
Einspritzpumpe umfasst jeweils einen mit einem Gehäuse
Der
Exzenter bildet dabei erfindungsgemäß einen Bestandteil
einer exzentrisch an der Antriebswelle
Bei
der Bauform nach
Der
Rand
Bei
der Bauform nach
Der
Gleitring
Der
Rand
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 (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810002105 DE102008002105A1 (en) | 2008-05-30 | 2008-05-30 | Injection pump for supplying diesel fuel to internal combustion engine in motor vehicle, has eccentric tappet radially and slidingly supported at edge of cup at inner side and outer side, where tappet is opened parallel to axis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810002105 DE102008002105A1 (en) | 2008-05-30 | 2008-05-30 | Injection pump for supplying diesel fuel to internal combustion engine in motor vehicle, has eccentric tappet radially and slidingly supported at edge of cup at inner side and outer side, where tappet is opened parallel to axis |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008002105A1 true DE102008002105A1 (en) | 2009-12-03 |
Family
ID=41253566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810002105 Withdrawn DE102008002105A1 (en) | 2008-05-30 | 2008-05-30 | Injection pump for supplying diesel fuel to internal combustion engine in motor vehicle, has eccentric tappet radially and slidingly supported at edge of cup at inner side and outer side, where tappet is opened parallel to axis |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008002105A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2492491A1 (en) * | 2011-02-28 | 2012-08-29 | Delphi Technologies Holding S.à.r.l. | Pumping assembly |
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
- 2008-05-30 DE DE200810002105 patent/DE102008002105A1/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 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2492491A1 (en) * | 2011-02-28 | 2012-08-29 | Delphi Technologies Holding S.à.r.l. | Pumping assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R005 | Application deemed withdrawn due to failure to request examination |