EP2771565B1 - Roller tappet - Google Patents

Roller tappet Download PDF

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Publication number
EP2771565B1
EP2771565B1 EP12741019.9A EP12741019A EP2771565B1 EP 2771565 B1 EP2771565 B1 EP 2771565B1 EP 12741019 A EP12741019 A EP 12741019A EP 2771565 B1 EP2771565 B1 EP 2771565B1
Authority
EP
European Patent Office
Prior art keywords
roller
housing
roller tappet
drive
side end
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.)
Not-in-force
Application number
EP12741019.9A
Other languages
German (de)
French (fr)
Other versions
EP2771565A1 (en
Inventor
Stefan Dorn
Norbert Geyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2771565A1 publication Critical patent/EP2771565A1/en
Application granted granted Critical
Publication of EP2771565B1 publication Critical patent/EP2771565B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • 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
    • F04B1/0417—Cams consisting of two or more cylindrical elements, e.g. rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers

Definitions

  • a roller tappet with a housing which has at its drive-side end a startup of a periodic Huber Wegers role that extends at least indirectly in an upper side of an inner shell of the housing projecting bridge piece, an underside of the bridge piece, at a driven side end of the roller tappet , Having a system for a ram part and wherein the housing run out of the role in this locking holding means.
  • roller tappet here for a high-pressure fuel pump
  • DE 10 2009 056 306 A1 Such a roller tappet, here for a high-pressure fuel pump, is in the DE 10 2009 056 306 A1 described. Its role is according to the variant of the FIGS. 1, 2 frontally on flax of the housing and undergoes a support in the latter on inwardly projecting, knob-like projections. This backup of the role in the ram is necessary for installation and transport of the roller tappet, but also in operation.
  • this object is achieved in that at the drive-side end, at least in the peripheral portion of end faces of the roller, an annular collar as a holding means to the inside, against the underside of the role against Falling out of the housing is secured, it being particularly preferred that the housing is provided on its outer shell, at least in a circumferential ring portion at the drive-side end, step-free with only one outer diameter.
  • the housing is provided on its outer shell, at least in a circumferential ring portion at the drive-side end, step-free with only one outer diameter.
  • protrudes from each outer end of the roller a central stump, whose diameter is smaller than an outer diameter of the roller.
  • the role should lie directly on the underside of the annular collar.
  • the proposed holding means can be one piece from the housing and present as an inwardly flanged end face area.
  • the proposed holding means can be one piece from the housing and present as an inwardly flanged end face area.
  • the retaining ring as a holding means can be mounted very easily. On the aforementioned knob-like projections can be omitted.
  • the outer jacket of the housing is all-round smooth-walled, which improves its leadership and sandability. At most, a window, for example. For an anti-rotation, applied in the outer jacket.
  • roller is not stored in the bridge piece, then it is also conceivable and intended to store it via their stumps in corresponding pockets in the inner casing of the housing at least in the direction of the output end.
  • the role may, as provided in the development of the invention, be directly sliding in a cylinder molding of the top of the bridge piece. However, it is equally proposed to guide the role in a separate shell member, which also sits still slightly movable in the bridge piece.
  • roller tappet relates, for example, to high-pressure pumps for diesel fuel with fuel lubrication. Also conceivable is an application in separately oil-lubricated high-pressure pumps for diesel or petrol.
  • the roller tappet can be used as a cam follower in a valve train of an internal combustion engine or in an axial piston motor with swash plate drive.
  • roller tappet 1 for a high-pressure fuel pump.
  • the roller tappet 1 has a housing 2, which at its drive-side end 3 has a start-up of a periodic Huber Wegers (cam or eccentric) serving role 4.
  • the latter is slidably mounted in a shell piece 10 which is received in a top 5 of an inner jacket 6 of the housing 2 by projecting bridge piece 7.
  • An underside, not shown, of the bridge piece 7, on a driven-side end 9 of the roller tappet 1, has a contact for a follower part (pump piston).
  • the ring collar 11 protrudes, as well from the Fig. 1, 2 It can be seen on outer braces 12 of the role 4. More specifically, stands from each outer end 12 of the roller 4, a central stump 17 from. About a between the respective stump 17 and an outer shell 8 of the roller 4 formed annular shoulder 18, the roller 4 is located on the underside 13 of the annular collar 11 (see also Fig. 2, 3rd ).
  • the outer brackets 12 of the roller 4 are in this case in the transition region 19 of the outer shell 8 to the annular shoulder 18 konusä Anlagen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

Vorgeschlagen ist ein Rollenstößel mit einem Gehäuse, das bei seiner antriebsseitigen Stirn eine einem Anlauf eines periodischen Huberzeugers dienende Rolle hat, die zumindest mittelbar in einer Oberseite eines einen Innenmantel des Gehäuses durchragenden Brückenstücks verläuft, wobei eine Unterseite des Brückenstücks, bei einer abtriebsseitigen Stirn des Rollenstößels, eine Anlage für ein Stößelfolgeteil aufweist und wobei vom Gehäuse die Rolle in diesem sichernde Haltemittel ausgehen.Proposed is a roller tappet with a housing which has at its drive-side end a startup of a periodic Huberzeugers role that extends at least indirectly in an upper side of an inner shell of the housing projecting bridge piece, an underside of the bridge piece, at a driven side end of the roller tappet , Having a system for a ram part and wherein the housing run out of the role in this locking holding means.

Ein derartiger Rollenstößel, hier für eine Kraftstoffhochdruckpumpe, ist in der DE 10 2009 056 306 A1 beschrieben. Dessen Rolle verläuft gemäß der Variante nach den Figuren 1, 2 stirnseitig an Flachs des Gehäuses und erfährt eine Halterung in Letztgenanntem an innenseitig einragenden, noppenartigen Vorsprüngen. Diese Sicherung der Rolle im Stößel ist notwendig für eine Montage und einen Transport des Rollenstößels, aber auch im Betrieb.Such a roller tappet, here for a high-pressure fuel pump, is in the DE 10 2009 056 306 A1 described. Its role is according to the variant of the FIGS. 1, 2 frontally on flax of the housing and undergoes a support in the latter on inwardly projecting, knob-like projections. This backup of the role in the ram is necessary for installation and transport of the roller tappet, but also in operation.

Nachteilig ist es, dass der Führungsbereich des Außenmantels des Gehäuses durch die Ausbildung der Flachs geschwächt ist und dass es beim Formgebungsprozess der Flachs zu einer ungünstigen maßlichen Beeinflussung des verbleibenden, zylindrischen Außenmantelbereichs des Stößels kommen kann. Auch wird festgestellt, dass sich die Ausbildung der Noppen als Anschläge für die Rolle als vergleichsweise aufwändig zeigt. So muss in diesem Bereich bspw. geprägt, durchgestellt oder fließgepresst werden.
Ein gattungsgemäßer Rollenstößel geht aus der WO 2007/147654 hervor. Es ist Aufgabe der Erfindung, eine vereinfachte Halterung für eine Rolle in einem Rollenstößel zu schaffen.It is disadvantageous that the guide region of the outer jacket of the housing is weakened by the formation of the flax and that during the shaping process of the flax an unfavorable dimensional influence on the remaining cylindrical outer jacket region of the plunger can occur. It is also found that the formation of the knobs as stops for the role as comparatively expensive. Thus, for example, in this area must be embossed, put through or extruded.
A generic roller tappet goes out of the WO 2007/147654 out. It is an object of the invention to provide a simplified support for a roller in a roller tappet.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass bei der antriebsseitigen Stirn, zumindest im Umfangsabschnitt von Stirnseiten der Rolle, ein Ringkragen als Haltemittel zur Innenseite, gegen dessen Unterseite die Rolle gegen Herausfallen aus dem Gehäuse gesichert ist, wobei es besonders bevorzugt ist, dass das Gehäuse an seinem Außenmantel, wenigstens in einem umlaufenden Ringabschnitt bei der antriebsseitigen Stirn, stufenfrei mit nur einem Außendurchmesser versehen ist. In Fortbildung der Erfindung ist es vorgesehen, dass von jeder Außenstirn der Rolle ein zentrischer Stumpf absteht, dessen Durchmesser kleiner als ein Außendurchmesser der Rolle ist. Über einen zwischen dem jeweiligen Stumpf und einem Außenmantel der Rolle gebildeten Ringabsatz soll die Rolle hierbei unmittelbar an der Unterseite des Ringkragens anliegen. Durch diese Maßnahme wird eine besonders gute Halterung der Rolle im Gehäuse erreicht. Die Anlaufbreite für den Huberzeuger auf der Rolle sowie deren Führungsbreite im Stößel sind hierbei nur geringfügig geschmälert.According to the invention this object is achieved in that at the drive-side end, at least in the peripheral portion of end faces of the roller, an annular collar as a holding means to the inside, against the underside of the role against Falling out of the housing is secured, it being particularly preferred that the housing is provided on its outer shell, at least in a circumferential ring portion at the drive-side end, step-free with only one outer diameter. In development of the invention, it is provided that protrudes from each outer end of the roller a central stump, whose diameter is smaller than an outer diameter of the roller. About a formed between the respective stump and an outer sheath of the roller ring shoulder the role should lie directly on the underside of the annular collar. By this measure, a particularly good retention of the roller is achieved in the housing. The run-up width for the Huberzeuger on the role and their leadership width in the ram are only slightly reduced.

Somit liegt ein Rollenstößel ohne die vorgenannten Nachteile vor. Das vorschlagsgemäße Haltemittel (Ringkragen) kann einteilig vom Gehäuse ausgehen und als nach innen gebördelter Stirnseitenbereich vorliegen. Bevorzugt ist jedoch dessen separate Ausbildung als (standardisierter) Sicherungsring u. dgl., welcher in einer Ringnut im Innenmantel des Gehäuses sitzt.Thus, there is a roller tappet without the aforementioned disadvantages. The proposed holding means (ring collar) can be one piece from the housing and present as an inwardly flanged end face area. Preferably, however, is its separate training as (standardized) circlip u. Like., Which sits in an annular groove in the inner casing of the housing.

Der Sicherungsring als Haltemittel lässt sich sehr einfach montieren. Auf die vorgenannten noppenartigen Vorsprünge kann verzichtet werden. Der Außenmantel des Gehäuses ist hierbei allumlaufend glattwandig, was dessen Führung und Schleifbarkeit verbessert. Allenfalls ist im Außenmantel ein Fenster, bspw. für eine Verdrehsicherung, appliziert.The retaining ring as a holding means can be mounted very easily. On the aforementioned knob-like projections can be omitted. The outer jacket of the housing is all-round smooth-walled, which improves its leadership and sandability. At most, a window, for example. For an anti-rotation, applied in the outer jacket.

Die in einem weiteren Unteranspruch aufgeführte konusähnliche Gestaltung eines stirnseitigen Übergangsbereichs der Rolle zum jeweiligen Stumpf gestattet eine "weiche" Montage der Rolle und vermeidet Kratzer beim Einführen dieser in das Gehäuse.Listed in a further subclaim cone-like design of an end-side transition region of the roller to the respective stump allows a "soft" assembly of the role and avoids scratches when inserting this into the housing.

Sollte die Rolle nicht im Brückenstück gelagert werden, so ist es auch denkbar und vorgesehen, diese über ihre Stümpfe in entsprechenden Taschen im Innenmantel des Gehäuses zumindest in Richtung zum abtriebsseitigen Ende hin zu lagern.If the roller is not stored in the bridge piece, then it is also conceivable and intended to store it via their stumps in corresponding pockets in the inner casing of the housing at least in the direction of the output end.

Die Rolle kann, wie in Fortbildung der Erfindung vorgesehen, direkt in einer Zylindereinformung der Oberseite des Brückenstücks gleitgelagert sein. Es ist jedoch gleichermaßen vorgeschlagen, die Rolle in einem separaten Schalenelement zu führen, dass zudem noch geringfügig beweglich in dem Brückenstück sitzt.The role may, as provided in the development of the invention, be directly sliding in a cylinder molding of the top of the bridge piece. However, it is equally proposed to guide the role in a separate shell member, which also sits still slightly movable in the bridge piece.

Ein Einsatz des erfindungsgemäßem Rollenstößels bezieht sich bspw. auf Hochdruckpumpen für Dieselkraftstoff mit Kraftstoffschmierung. Denkbar ist auch eine Applikation in separat ölgeschmierten Hochdruckpumpen für Diesel- oder Ottokraftstoff. Gleichermaßen kann der Rollenstößel als Nockenfolger in einem Ventiltrieb einer Brennkraftmaschine oder in einem Axialkolbenmotor mit Taumelscheibentrieb eingesetzt werden.An insert of the roller tappet according to the invention relates, for example, to high-pressure pumps for diesel fuel with fuel lubrication. Also conceivable is an application in separately oil-lubricated high-pressure pumps for diesel or petrol. Similarly, the roller tappet can be used as a cam follower in a valve train of an internal combustion engine or in an axial piston motor with swash plate drive.

Ein Beispiel der Erfindung geht aus der Zeichnung hiervor:

  • Fig. 1 zeigt eine räumliche Ansicht eines Rollenstößels;
  • Fig. 2 zeigt einen räumlichen Ausschnitt des Rollenstößels im Bereich einer Außenstirn dessen Rolle und
  • Fig. 3 zeigt die Rolle mit Stümpfen in einer räumlichen Darstellung.
An example of the invention proceeds from the drawing:
  • Fig. 1 shows a spatial view of a roller tappet;
  • Fig. 2 shows a spatial section of the roller tappet in the region of an outer end whose role and
  • Fig. 3 shows the role with stumps in a spatial representation.

Dargestellt ist in Fig. 1 ein Rollenstößel 1, hier für eine Kraftstoffhochdruckpumpe. Der Rollenstößel 1 hat ein Gehäuse 2, das bei seiner antriebsseitigen Stirn 3 eine einem Anlauf eines periodischen Huberzeugers (Nocken oder Exzenter) dienende Rolle 4 hat. Letztgenannte verläuft gleitgelagert in einem Schalenstück 10, das in einer Oberseite 5 eines einen Innenmantel 6 des Gehäuses 2 durchragenden Brückenstücks 7 aufgenommen ist. Eine nicht gezeigte Unterseite des Brückenstücks 7, bei einer abtriebsseitigen Stirn 9 des Rollenstößels 1, weist eine Anlage für ein Stößelfolgeteil (Pumpenkolben) auf.Is shown in Fig. 1 a roller tappet 1, here for a high-pressure fuel pump. The roller tappet 1 has a housing 2, which at its drive-side end 3 has a start-up of a periodic Huberzeugers (cam or eccentric) serving role 4. The latter is slidably mounted in a shell piece 10 which is received in a top 5 of an inner jacket 6 of the housing 2 by projecting bridge piece 7. An underside, not shown, of the bridge piece 7, on a driven-side end 9 of the roller tappet 1, has a contact for a follower part (pump piston).

Von der antriebsseitigen Stirn 3 des Gehäuse 2 gehen die Rolle 4 sichernde Haltemittel 11 aus (s. a. Fig. 2). Diese sind als separater Ringkragen ausgebildet und liegen hiernach als Sicherungsring vor, der in einer Umfangsnut 16 des Innenmantels 6 des Gehäuses 2, bei der antriebsseitigen Stirn 3, sitzt.From the drive-side end 3 of the housing 2 go the role 4 locking holding means 11 (see also Fig. 2 ). These are designed as a separate annular collar and are hereafter as a locking ring which sits in a circumferential groove 16 of the inner shell 6 of the housing 2, in the drive-side end 3.

Der Ringkragen 11 ragt, wie gut aus den Fig. 1, 2 erkennbar ist, über Außenstirnen 12 der Rolle 4. Genauer gesagt steht von jeder Außenstirn 12 der Rolle 4 ein zentrischer Stumpf 17 ab. Über einen zwischen dem jeweiligen Stumpf 17 und einem Außenmantel 8 der Rolle 4 gebildeten Ringabsatz 18 liegt die Rolle 4 an der Unterseite 13 des Ringkragens 11 an (s. a. Fig. 2, 3). Die Außenstirnen 12 der Rolle 4 sind hierbei im Übergangsbereich 19 von deren Außenmantel 8 zu dem Ringabsatz 18 konusähnlich.The ring collar 11 protrudes, as well from the Fig. 1, 2 It can be seen on outer braces 12 of the role 4. More specifically, stands from each outer end 12 of the roller 4, a central stump 17 from. About a between the respective stump 17 and an outer shell 8 of the roller 4 formed annular shoulder 18, the roller 4 is located on the underside 13 of the annular collar 11 (see also Fig. 2, 3rd ). The outer brackets 12 of the roller 4 are in this case in the transition region 19 of the outer shell 8 to the annular shoulder 18 konusähnlich.

Liste der BezugszahlenList of reference numbers

1)1)
Rollenstößelroller plunger
2)2)
Gehäusecasing
3)3)
antriebsseitige Stirndrive-side forehead
4)4)
Rollerole
5)5)
Oberseitetop
6)6)
Innenmantelinner sheath
7)7)
Brückenstückbridge piece
8)8th)
Außenmantelouter sheath
9)9)
abtriebsseitige Stirnoutput-side forehead
10)10)
Schalenstückshell pieces
11)11)
Haltemittel, RingkragenHolding means, ring collar
12)12)
Außenstirnouter end
13)13)
Unterseitebottom
14)14)
Außenmantelouter sheath
15)15)
Ringabschnittring section
16)16)
Umfangsnutcircumferential groove
17)17)
Stumpfdull
18)18)
Ringabsatzannular shoulder
19)19)
ÜbergangsbereichTransition area

Claims (7)

  1. Roller tappet (1) having a housing (2) which, on its drive-side end (3), has a roller (4) which serves for a periodic lift generator to run on and runs at least indirectly in an upper side (5) of a bridge piece (7) which penetrates an inner shell (6) of the housing (2), an underside of the bridge piece (7) having a rest for a tappet following part in an output-side end (9) of the roller tappet (1), and holding means (11) which secure the roller (4) in the housing (2) emanating from the said housing (2), an annular collar as holding means (11) protruding to the inner side in the drive-side end (3), at least in the circumferential section of end sides (12) of the roller (4), against the underside (13) of which annular collar the roller (4) is secured against falling out of the housing (2), characterized in that a central stub (17) projects from each end side (12) of the roller (4), the diameter of which stub (17) is smaller than an external diameter of the roller (4), which roller (4) bears directly against the underside (13) of the annular collar (11) via an annular step (18) which is formed between the respective stub (17) and the outer shell (8) of the said roller (4).
  2. Roller tappet according to Claim 1, characterized in that the annular collar (11) is present as a separate component which is seated in a circumferential groove (16) of the inner shell (6) of the housing (2) in the drive-side end (3).
  3. Roller tappet according to Claim 1 or 2, characterized in that the annular collar (11) is present as a securing ring, locking washer or as a round wire circlip.
  4. Roller tappet according to Claim 1, characterized in that a transition region (19) from the outer shell (8) of the roller (4) to the annular step (18) is provided in a cone-like manner on each end side (12) of the said roller (4).
  5. Roller tappet according to Claim 1, characterized in that a cylindrical formed recess is present in the upper side (5) of the bridge piece (7), in which formed recess the roller (4) is either directly mounted on a plain bearing, or in which formed recess a shell piece (10) lies such that it can be moved at least slightly, in which shell piece (10) the roller (4) is mounted slidingly.
  6. Roller tappet according to Claim 1, characterized in that the housing (2) is provided on its outer shell (14), at least in a circumferential annular section (15) in the drive-side end (3), with only one external diameter in a step-free manner.
  7. Use of a roller tappet according to Claim 1, a) of a high-pressure fuel pump, b) of a valve train of an internal combustion engine or c) of an engine such as an axial piston engine.
EP12741019.9A 2011-10-26 2012-08-02 Roller tappet Not-in-force EP2771565B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011085242A DE102011085242A1 (en) 2011-10-26 2011-10-26 roller plunger
PCT/EP2012/065128 WO2013060494A1 (en) 2011-10-26 2012-08-02 Roller tappet

Publications (2)

Publication Number Publication Date
EP2771565A1 EP2771565A1 (en) 2014-09-03
EP2771565B1 true EP2771565B1 (en) 2016-10-12

Family

ID=46598563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12741019.9A Not-in-force EP2771565B1 (en) 2011-10-26 2012-08-02 Roller tappet

Country Status (4)

Country Link
EP (1) EP2771565B1 (en)
CN (1) CN103917769B (en)
DE (1) DE102011085242A1 (en)
WO (1) WO2013060494A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014220813B4 (en) * 2014-10-14 2019-12-24 Continental Automotive Gmbh Tappet arrangement for a roller tappet pump and such a roller tappet pump
DE102017107099B3 (en) 2017-04-03 2018-06-28 Schaeffler Technologies AG & Co. KG Multi-part roller tappet for a high-pressure fuel pump

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5566652A (en) * 1995-10-06 1996-10-22 Eaton Corporation Light weight cam follower
IT1279050B1 (en) * 1995-10-27 1997-12-04 Eaton Automotive Spa DIRECT ACTING HYDRAULIC PUNTERS FITTED WITH A ROLL FOR CONTACT WITH THE CAM OF THE CAMSHAFT OF AN INTERNAL COMBUSTION ENGINE
DE102006028348B3 (en) * 2006-06-20 2007-10-31 Siemens Ag Rolling bearing device has locking element arranged so that in cavity of cylinder-shaped element it is coupled with positive locking with regard to axial and rotational direction in regard to center axis of cylinder-shaped element
DE102009056305A1 (en) * 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg 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
DE102009056306A1 (en) 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg roller plunger
DE102009056303A1 (en) * 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg roller plunger

Also Published As

Publication number Publication date
CN103917769B (en) 2017-05-17
EP2771565A1 (en) 2014-09-03
DE102011085242A1 (en) 2013-05-02
CN103917769A (en) 2014-07-09
WO2013060494A1 (en) 2013-05-02

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