DE102010011436A1 - Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece - Google Patents
Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece Download PDFInfo
- Publication number
- DE102010011436A1 DE102010011436A1 DE201010011436 DE102010011436A DE102010011436A1 DE 102010011436 A1 DE102010011436 A1 DE 102010011436A1 DE 201010011436 DE201010011436 DE 201010011436 DE 102010011436 A DE102010011436 A DE 102010011436A DE 102010011436 A1 DE102010011436 A1 DE 102010011436A1
- Authority
- DE
- Germany
- Prior art keywords
- shirt
- plunger
- assembly according
- pump
- pump piston
- 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- Withdrawn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
Images
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
- F02M59/10—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
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Badeinheit für eine Kraftstoffhochdruckpumpe einer qualitäts- oder quantitätsgeregelten Brennkraftmaschine, mit einem tassenförmigen Stößel und einem Pumpenkolben, welchem Stößel ein hohlzylindrisches Hemd mit einem Führungsmantel zur axialbeweglichen Aufnahme gegenüber einem pumpenfesten Bauteil immanent ist, welches Hemd an einer Stirn mit einem Boden versehen ist, dessen Außenseite [Boden] Nockenanlaufmitteln aufweist, wobei an einer zentrischen Kontaktfläche der Innenseite [Boden] der Pumpenkolben anliegt und wobei die Baueinheit mit einer Abstützung für eine Rückstellfeder versehen ist.The invention relates to a bath unit for a high-pressure fuel pump of a quality- or quantity-controlled internal combustion engine, with a cup-shaped plunger and a pump piston, which plunger is a hollow cylindrical shirt immanent with a guide casing for axialbeweglichen recording against a pump-fixed component, which shirt provided on a forehead with a bottom is whose outside [bottom] cam starting means, wherein at a central contact surface of the inside [bottom] of the pump piston rests and wherein the assembly is provided with a support for a return spring.
Hintergrund der ErfindungBackground of the invention
Eine derartige Baueinheit geht aus dem Dokument
Summa summarum wird festgestellt, dass die Baueinheit nach der
Des Weiteren wird auf die Dokumente
Aufgabe der ErfindungObject of the invention
Aufgabe ist es daher, eine Baueinheit der vorgenannten Art zu schaffen, bei welche die zitierten Nachteile nicht mehr auftreten. Insbesondere soll die Baueinheit einfach aufgebaut sein und sich preiswert in Massenfertigung darstellen lassen.The object is therefore to provide a structural unit of the aforementioned type, in which the cited disadvantages no longer occur. In particular, the assembly should be simple and inexpensive in mass production.
Lösung der AufgabeSolution of the task
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass das Hemd und der Boden des Stößel einteilig miteinander verbunden und spanlos hergestellt sind, wobei der Führungsmantel des Hemds an einer Innenfläche liegt, wobei als Nockenanlaufmittel an der Außenseite des Bodens eine Gleitfläche vorliegt und wobei die Abstützung für die Rückstellfeder als einteilig von einer Außenfläche des Hemds abragender Ringbund vorliegt.According to the invention, this object is achieved in that the shirt and the bottom of the plunger are integrally connected to each other and produced without cutting, wherein the guide sheath of the shirt is located on an inner surface, wherein the cam starting means on the outside of the bottom is a sliding surface and wherein the support for the Return spring is present as an integrally projecting from an outer surface of the shirt collar.
Somit liegt eine Baueinheit ohne die vorhergehend aufgeführten Nachteile vor. Die Baueinheit besteht aus relativ wenigen, einfach montierbaren Bauteilen.Thus, there is a unit without the disadvantages listed above. The assembly consists of relatively few, easily assembled components.
Der in Konkretisierung der Erfindung als Fließpressteil (bspw. Einsatzstahl 16MnCr5) vorgeschlagene Stößel besitzt eine hervorragende Festigkeit und Verschleißbeständigkeit. Aufgrund der einteiligen Verbindung des Bodens mit dem Hemd des Stößels entfällt der Arbeitsschritt zum Verbinden des Hemds mit dem Boden. Zugleich ist eine einteilig mit dem Stößel verbundene Abstützung für die außen liegende Druckfeder (Rückstellfeder bei Saughub) Bestandteil der Erfindung. Diese geht als einteilige Anbindung von der Außenfläche des Hemds auf Bodenhöhe aus.The plunger proposed in concretization of the invention as extruded part (for example, 16MnCr5 insert steel) has excellent strength and wear resistance. Due to the one-piece connection of the floor with the shirt of the plunger eliminates the step to connect the shirt with the ground. At the same time a one-piece connected to the plunger support for the outer compression spring (return spring at suction stroke) is part of the invention. This comes as a one-piece connection from the outer surface of the shirt at ground level.
Alternativ kann der Stößel auch aus Stahlblech stanz-biegetechnisch hergestellt sein oder als Massivteil vorliegen.Alternatively, the plunger can also be made of sheet steel punching-bending technology or present as a solid part.
Der Führungsmantel des Hemds gegenüber dem pumpenfesten Bauteil wie einem Zylinderkopf oder Gehäuseteil der Kraftstoffpumpe, wobei auch andere Pumpenarten denkbar sind, in welche die nocken- oder exzenterfolgende Baueinheit eingesetzt werden kann, liegt erfindungsgemäß innenwändig, was bei geschickter konstruktiver Auslegung hilft, radialen Bauraum zu sparen, so dass der Stößel ggf. leichter baut.The guide casing of the shirt opposite the pump-fixed component such as a cylinder head or housing part of the fuel pump, with other pump types are conceivable, in which the cam or Exzenterfolgende assembly can be used according to the invention internally, which helps skilful constructive design to save radial space , so that the ram may be easier to build.
Ein Einsatz des Stößels (ohne Pumpenkolben) kommt auch als „klassischer”, nockenfolgender Tassenstößel in einem Ventiltrieb einer Brennkraftmaschine infrage.An insert of the plunger (without pump piston) is also a "classic", cam-following bucket tappet in a valve train of an internal combustion engine in question.
Aufgrund des in Fortbildung der Erfindung vorgeschlagenen Verzichts auf eine Nockenanlaufrolle durch den Einsatz einer entsprechend verschleißgeschützten Gleitfläche an der Außenseite des Bodens ist der Aufbau weiter vereinfacht und kostenoptimiert.Due to the proposed in development of the invention waiver of a Nockenanlaufrolle by the use of a correspondingly wear-protected sliding surface on the outside of the bottom of the structure is further simplified and cost-optimized.
Zudem ist vorgeschlagen, auf eine Verdrehsicherung im Hemd des Stößels zu verzichten, was die Konstruktion weiter verbilligt. Auch ist daran gedacht, die Außenseite des Bodens geringfügig ballig zu gestalten, so dass aufgrund der somit vergrößerten Nockenanlauffläche der Stößel in seinem Durchmesser ggf. weiter reduziert werden kann.In addition, it is proposed to dispense with a rotation in the shirt of the ram, which further reduces the cost of the construction. It is also thought, the outside of the soil slightly convex to make, so that due to the thus enlarged cam contact surface of the plunger in its diameter can optionally be further reduced.
Aufgrund der gemäß einem weiteren Unteranspruch vorgeschlagenen komplett glattzylindrischen Ausbildung des Pumpenkolbens am Außenmantel kann dieser, da somit ohne Radialbund o. -bünde, bspw. in einem einfachen Centerless-Schleifverfahren oder durch Außenrundhonen im Durchlauf feinbearbeitet werden. Ggf. kann der Außenmantel jedoch mit Mikrorillen o. dgl. versehen sein.Due to the proposed according to a further subclaim completely smooth cylindrical design of the pump piston on the outer shell of this, as thus without radial collar o. - Bundles, for example, in a simple centerless grinding process or by Außenrundhonen be processed in the run. Possibly. However, the outer sheath may be provided with microgrooves or the like.
Eine einfache Anbindung des Pumpenkolbens an den Stößel (Rückführung bei Saughub, evtl. Transportsicherung) ist Gegenstand eines weiteren Unteranspruchs. Demnach ist auf dem Außenmantel des Pumpenkolbens, im Bereich dessen bodenseitiger Stirn, ein Ringkragen bspw. aufgepresst. Ggf. kann der Ringkragen auch einteilig mit dem Pumpenkolben verbunden sein, wobei dann jedoch die vorgenannte Feinbearbeitung so nicht realisiert werden kann.A simple connection of the pump piston to the plunger (return at intake stroke, possibly transport lock) is the subject of another subclaim. Accordingly, on the outer jacket of the pump piston, in the region of the bottom-side forehead, an annular collar, for example, is pressed. Possibly. may also be integrally connected to the pump piston, the annular collar, but then the aforementioned fine machining can not be realized.
Unter den Ringkragen greift ein mit der Innenfläche des Hemds verbundener, federnder Ringteller, der bspw. aus Blech besteht. Letztgenannter Federteller erfährt nach der Erfindung eine einfache Befestigung hinter einem von der Innenseite des Hemds bevorzugt (jedoch nicht Bedingung) einteilig abstehenden Ringvorsprung.Under the ring collar engages a connected with the inner surface of the shirt, resilient ring plate, which consists, for example, of sheet metal. The latter spring plate learns according to the invention, a simple attachment behind a preferred from the inside of the shirt (but not condition) integrally projecting annular projection.
Beschreibung der ZeichnungDescription of the drawing
Dargestellt ist eine Baueinheit
An einer zentrischen Kontaktfläche
Zudem ist dargestellt, dass eine Abstützung
Die Baueinheit
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Baueinheitunit
- 22
- Stößeltappet
- 33
- Pumpenkolbenpump pistons
- 44
- Hemdshirt
- 55
- Führungsmantelguide sheath
- 66
- Stirnforehead
- 77
- Bodenground
- 88th
- Außenseiteoutside
- 99
- NockenanlaufmittelCam nose means
- 1010
- Kontaktflächecontact area
- 1111
- Innenseiteinside
- 1212
- Abstützungsupport
- 1313
- Innenflächepalm
- 1414
- Außenflächeouter surface
- 1515
- Außenmantelouter sheath
- 1616
- Innenstirninterior forehead
- 1717
- Ringkragengorget
- 1818
- bodenferne Stirnaway from the ground
- 1919
- Innenseiteinside
- 2020
- MitnehmertellerMitnehmerteller
- 2121
- Stößelinneretappet inside
- 2222
- Außenrandouter edge
- 2323
- Ringvorsprungannular projection
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 10157076 A1 [0002, 0003] DE 10157076 A1 [0002, 0003]
- DE 102006933 A1 [0004] DE 102006933 A1 [0004]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010011436 DE102010011436A1 (en) | 2010-03-15 | 2010-03-15 | Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010011436 DE102010011436A1 (en) | 2010-03-15 | 2010-03-15 | Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010011436A1 true DE102010011436A1 (en) | 2011-09-15 |
Family
ID=44507960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010011436 Withdrawn DE102010011436A1 (en) | 2010-03-15 | 2010-03-15 | Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010011436A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017080738A1 (en) * | 2015-11-12 | 2017-05-18 | Robert Bosch Gmbh | Pump, in particular a high-pressure pump of a fuel injection system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10157076A1 (en) | 2001-11-21 | 2003-05-28 | Bosch Gmbh Robert | Tappet with piston has axial and/or radial roller guide adjustable on tappet by means of roller shoe fixed to tappet |
DE102006000933A1 (en) | 2006-01-05 | 2007-07-12 | Bullemer, Bernhard, Prof. Dr. | Disinfecting an article surface comprises treating the article with heated water vapor produced from water that contains heavy and/or half-heavy and/or over-heavy water |
-
2010
- 2010-03-15 DE DE201010011436 patent/DE102010011436A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10157076A1 (en) | 2001-11-21 | 2003-05-28 | Bosch Gmbh Robert | Tappet with piston has axial and/or radial roller guide adjustable on tappet by means of roller shoe fixed to tappet |
DE102006000933A1 (en) | 2006-01-05 | 2007-07-12 | Bullemer, Bernhard, Prof. Dr. | Disinfecting an article surface comprises treating the article with heated water vapor produced from water that contains heavy and/or half-heavy and/or over-heavy water |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017080738A1 (en) * | 2015-11-12 | 2017-05-18 | Robert Bosch Gmbh | Pump, in particular a high-pressure pump of a fuel injection system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102007000422B4 (en) | piston pump | |
DE102010030498A1 (en) | Pump, in particular high-pressure fuel pump | |
DE102012223413A1 (en) | Roller tappet for a pump, in particular high-pressure fuel pump, and pump with roller tappet | |
DE102010022319A1 (en) | Component for fuel high pressure pump of quality or quantity- controlled combustion engine, has pump piston exhibiting equal diameter continuously and provided with separate drive plate within sleeve that is protruded from bottom of plate | |
DE102017216900A1 (en) | Pressure medium control valve, in particular for controlling a flow direction in a pressure medium circuit and piston pump, in particular for the promotion of a pressure medium in an electronically slip-regulated vehicle brake system | |
DE102012221604A1 (en) | Roller plunger for pump i.e. fuel high pressure pump, for fuel injector of combustion engine, has roller shaft faced away from through-hole that is formed between inner surface of first plunger part and outer surface of second plunger part | |
DE102011002589A1 (en) | Roller cam follower for stroke operation of rocker arm in overhead valve train, comprises down or lateral cam shaft of internal combustion engine, where roller cam follower is assembled from roller shaft | |
EP1658433B1 (en) | High-pressure pump for a fuel-injection device of an internal combustion engine | |
EP2951435B1 (en) | Plunger | |
DE102008000824A1 (en) | Pump, in particular high-pressure fuel pump | |
DE102012217260A1 (en) | Pump, in particular high-pressure fuel pump for a fuel injection device of an internal combustion engine | |
DE102008043420A1 (en) | Fuel injection pump and method for its assembly | |
DE102009056305A1 (en) | Roller plunger, particularly for high-pressure fuel pump or for valve train of quality-or quantity controlled internal combustion engine, has housing which is projected under roller by bridge piece | |
DE102013215455A1 (en) | cam follower | |
DE102009002529A1 (en) | Injection pump for internal combustion engine, has sliding bearing whose surface is formed with groove, and glide layer made from PTFE or polyetheretherketone and anchored in groove | |
DE102008010238A1 (en) | High pressure element for fuel injection system of internal-combustion engine, has cylinder bore and piston guided in cylinder bore, where cylinder bore and front surface of piston limit high pressure area | |
DE102010011436A1 (en) | Component for high-pressure fuel pump of quality or quantity-regulated internal-combustion engine, has tappet that is provided with skirt and base, which are connected with each other in single piece | |
DE102010011435A1 (en) | Assembly with a pump piston and a plunger | |
DE102009027689A1 (en) | Fuel high-pressure pump for fuel injection system of internal-combustion engine of motor vehicle, has slots extending from central through-hole of spring disk, which is supported at guided piston in axial direction | |
EP1646768B1 (en) | Hydraulic support element | |
EP2771565A1 (en) | Roller tappet | |
DE102018203417A1 (en) | Piston arrangement of an internal combustion engine | |
DE102010063191A1 (en) | Internal combustion engine i.e. single-cylinder four-stroke internal combustion engine, for driving motorcycle, has radially running channel directed in position of crankshaft, where axially running channel of engine is part of channels | |
DE102017218730A1 (en) | High-pressure fuel pump | |
DE102020118876A1 (en) | Fuel injection pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140218 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140218 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150402 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |