EP2853699B1 - Stössel, Einspritzpumpe und Ventilaktor mit einem solchen Stössel und Herstellungsverfahren eines solchen Stössel - Google Patents

Stössel, Einspritzpumpe und Ventilaktor mit einem solchen Stössel und Herstellungsverfahren eines solchen Stössel Download PDF

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Publication number
EP2853699B1
EP2853699B1 EP13186518.0A EP13186518A EP2853699B1 EP 2853699 B1 EP2853699 B1 EP 2853699B1 EP 13186518 A EP13186518 A EP 13186518A EP 2853699 B1 EP2853699 B1 EP 2853699B1
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EP
European Patent Office
Prior art keywords
axis
mechanical system
support element
tappet
pin
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.)
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Application number
EP13186518.0A
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English (en)
French (fr)
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EP2853699A1 (de
Inventor
Nicolas Berruet
Charles Chambonneau
Benoit Hauvespre
Samuel Viault
François Champalou
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SKF AB
Original Assignee
SKF AB
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Publication date
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Priority to EP13186518.0A priority Critical patent/EP2853699B1/de
Priority to CN201410510117.4A priority patent/CN104514655B/zh
Publication of EP2853699A1 publication Critical patent/EP2853699A1/de
Application granted granted Critical
Publication of EP2853699B1 publication Critical patent/EP2853699B1/de
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Classifications

    • 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
    • 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
    • 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
    • F02M59/48—Assembling; Disassembling; Replacing
    • 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
    • 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
    • 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
    • F01L2307/00—Preventing the rotation of tappets
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/90—Selection of particular materials
    • F02M2200/9053—Metals

Definitions

  • the invention concerns a mechanical system.
  • the invention also concerns an injection pump and a valve actuator for a motor vehicle, by example for a gasoline engine car, each comprising such a mechanical system.
  • the invention also concerns a method for manufacturing such a mechanical system.
  • a cam follower belonging to an injection pump comprises at least a tappet, a roller and a pin in bronze or steel.
  • the roller and the pin are centered on a transverse axis, while the tappet extends along a longitudinal axis.
  • the tappet is formed with two lateral flanges, delimiting an intermediate gap between them and each comprising a cylindrical bore, possibly beveled.
  • the roller is positioned in the intermediate gap, between both flanges and bores.
  • the pin is fitted in the two bores, such that the roller is movable in rotation relative to the pin around its axis.
  • the pin might be then caulked, in other words plastically deformed, on both opposite ends to create a mechanical connection by press-fit in the tappet bores.
  • the roller collaborates with a cam synchronized with the internal combustion engine camshaft.
  • the rotation of the camshaft leads to a periodic displacement of a piston of the pump that rests against the tappet, to allow fuel to be delivered.
  • the tappet is movable back and forth along the longitudinal axis.
  • the aim of the invention is to provide an improved mechanical system, such as a cam follower, provided with an anti-rotation function.
  • the invention concerns a mechanical system, comprising a tappet including a body, a support element defining two bores centered on a first axis, the support element being distinct from the body and fixed thereto, a pin comprising two opposite ends each adapted to be fitted in one of the two bores, and a roller element positioned between the two bores along the first axis and movable in rotation relative to the pin around the first axis.
  • the support element is fixed to the body by local deformations of the body and the support element also comprises at least one antirotation device integrally formed thereto.
  • the mechanical system is provided with anti-rotation function and a pin support function on the same part, without using an additional part.
  • Design of the mechanical system and its assembly are simplified. Position of the antirotation device relative to the pin axis and is more accurate.
  • the antirotation device prevents the support element from rotating in a bore surrounding this support element, which is for example the tappet of a cam follower.
  • such a mechanical system may incorporate one or several of the following features:
  • the invention also concerns an injection pump for a motor vehicle, equipped with a mechanical system as mentioned here-above.
  • the invention also concerns a valve actuator for a motor vehicle, equipped with a mechanical system as mentioned here-above.
  • the invention also concerns a method for manufacturing a mechanical system as mentioned here-above, wherein the antirotation device is integrally formed with the support element by stamping, then the support element is mounted with a play inside the body, then fixed to the body by crimping.
  • the mechanical system 1 represented on figures 1 to 6 is of the cam follower type, adapted to equip an injection pump for a motor vehicle, preferably for a gasoline engine car, not shown.
  • the system 1 comprises a tappet 10, an insert 20, a pin 30, a roller 40 and a bearing 50.
  • Pin 30, roller 40 and bearing 50 are centered on a transverse axis X1, while tappet 10 is centered on a longitudinal axis Y1.
  • Axis X1 and Y1 are perpendicular.
  • the bearing 50 consists of needles 52. Alternatively, it may consist of cylindrical rollers or a sliding bushing.
  • Tappet 10 comprises a cylindrical body 11 centered on axis Y1 and extending between an upper edge 12 and a lower edge 13.
  • Body 11 has a cylindrical outer surface 14 and a cylindrical inner bore 15 delimiting a cavity 16 inside tappet 10.
  • This cavity 16 is adapted to receive a plunger or a push rod, not shown, following tappet 10 along axis Y1.
  • This cavity 16 is also adapted to receive insert 20.
  • Tappet 10 is movable back and forth along axis Y1, in a non-represented bore belonging to the injection pump or motor, with surface 14 sliding in this bore.
  • Tappet 10 can be made of synthetic material, by example polyamide 6,6 (PA) or polyether-ether-ketone (PEEK), or made of metal, by example steel. Material of the tappet 10 is chosen resistant to oil and its additives and temperature variations.
  • Insert 20 comprises a central core 21 and four lateral tab 22, 23, 25 and 26 extending from central portion 21 opposite axis Y1, then partly along a direction parallel to axis Y1.
  • Each tab 22, 23, 25 and 26 comprises a curved portion, respectively 221, 231, 251 and 261, extending from core 21 opposite axis Y1 then curved from radial direction to upper direction; and an axial portion, respectively 222, 232, 252 and 262, extending along a direction parallel to axis Y1.
  • Portions 222 and 223 are curved around axis Y1 and adapted to rest against bore 15 of tappet 10.
  • Portion 252 is a lateral flange comprising a curved upper surface 253, two plane lower surfaces 254 and a cylindrical bore 258.
  • Portion 262 is a lateral flange comprising a curved upper surface 263, two plane lower surfaces 264 and a cylindrical bore 268.
  • Insert 20 forms a support element for pin 30, roller 40 and bearing 50.
  • bores 258 and 268 of insert 20 are adapted to receive pin 30, on which roller 40 and bearing 50 are mounted.
  • the two lateral flanges 252 and 262 extend parallel to axis Y1 in a bifurcated manner, on both side of axis Y1, with surfaces 254 and 264 resting against edge 12.
  • the flanges 252 and 262 delimit between them an intermediate gap 27.
  • Both bores 258 and 268 extend through flanges 252 and 262 along same axis X1 and have the same diameter.
  • an antirotation device 24 is integrally formed with insert 20.
  • Device 24 is a pin protruding from tab 23 along a direction parallel to an axis Z1 perpendicular to axes X1 and Y1.
  • Pin 24 has a curved portion 241 and a radial portion 242.
  • Portion 241 extends from tab 23 along axis Y1 then is curved opposite axis Y1 along axis Z1.
  • Portion 242 extends along axis Z1, opposite axis Y1.
  • Portion 242 comprises two lateral faces 243 and upper and lower faces 244.
  • pin 24 and more precisely faces 243 cooperates with a non-represented guiding groove, formed in the bore surrounding tappet 10.
  • pin 24 prevents tappet 10 from rotating in this bore around axis Y1.
  • lower and upper faces 244 of pin 24 may form end stops adapted to abut against extremities of the guiding groove or of another part.
  • Insert 20 is preferably made of metal, by example steel such as XC75. Material of insert 20 is chosen resistant to oil flow, temperature variations and mechanical strains. Insert 20 is preferably formed by stamping. In other words, elements 21 to 26 are delimited in a plane metal sheet, and then formed by stamping. Holes 28 are delimited between portions 221, 231, 251 and 261, in order to save material and avoid cracks when insert 20 is deformed by stamping. Insert 20 is clamped inside body 11, preferably force-fitted. Alternatively, insert 20 is mounted inside body 11 with a play radially to axis Y1, and then fixed to body 11, for instance by crimping, welding or soldering.
  • Pin 30 comprises a cylindrical surface 32 extending between two pin ends 35 and 36.
  • pin ends 35 and 36 are adapted to be caulked, respectively in bores 258 and 268.
  • Pin 30 is made of metal, such as steel or bronze. If made of steel, pin 30 is preferably subjected to heat treatment before the caulking step. More precisely, pin ends 35 and 36 may be subjected to an induction hardening step just before the caulking step.
  • Roller 40 has an outer cylindrical surface 41 and an inner cylindrical bore 42 centered on axis X1.
  • Surface 41 is intended to bear against an outer surface of a non-represented cam, synchronized with the internal combustion engine camshaft.
  • Surface 41 is preferably subjected to heat treatment to increase its resistance to load and/or wear.
  • Needle bearing 50 comprises a series of needles 52 extending parallel to axis X1 and distributed regularly around axis X1. Needles 52 are interposed between surface 32 of pin 30 and surface 42 of roller 40.
  • roller 40 and rolling bearing 50 are positioned before pin 30 in the intermediate gap 27 between the two flanges 252 and 262. Then pin 30 is inserted inside bores 258 and 268 of insert 20 and inside rolling bearing 50. Finally pin ends 35 and 36 are caulked in bores 258 and 268.
  • roller 40 is movable in rotation relative to pin 30 around axis X1. Pin axis, roller axis and rolling bearing axis merge with axis X1. Roller 40 is then adapted to roll, more precisely its surface 41 can roll, on an outer surface of the non-represented cam.
  • the load applied on surface 41 of roller 40 is transmitted to rolling bearing 50, then to pin 30, then to insert 20, then to tappet 10 and to the non-represented plunger or push rod located inside cavity 16 of tappet 10.
  • Core 21 of insert 20 rests in contact against this part.
  • the surfaces 254 and 264 rest in contact against the surface of edge 12, such that the load applied on the roller 40 is at least partly transmitted via these surfaces from the support element 20 to the body 11.
  • most of the load applied on roller 40 is received by insert 20 instead of tappet 10, then is transmitted to the plunger or push rod.
  • Tappet 10 slides back and forth but bears few mechanical strains along axis Y1.
  • Insert 20 has three different functions. Insert 20 forms a support element for pin 30. Insert 20 comprises an antirotation device 24 integrally formed thereto. Insert 20 is in contact with the plunger or push rod located inside cavity 16 for load transmission.
  • FIGS 7 and 8 show a mechanical system 1 according to the invention. Only the differences with respect to the first embodiment are described hereafter.
  • Body 11 comprises local deformations 120 and 140 for fixing insert 20 to tappet 10.
  • Deformations 120 are made after deformations 140.
  • body 11 includes five deformations 120 distributed on edge 12 and four deformation 140 regularly distributed around axis Y1.
  • Deformations 140 may be made by punching outer surface 14 of body 11, thus including a recess 141 formed on outer surface 14 and a protrusion 142 formed on inner surface 15 toward axis Y1.
  • Portions 221, 231, 251 and 261 of insert 20 come in bearing contact with protrusion 142 inside cavity 16, thus preventing insert 20 to move inside cavity 16 toward edge 13.
  • Deformations 140 can be made before or after mounting insert 20 inside body 11.
  • Deformations 120 are made by punching material of edge 12 against insert 20 along axis Y1, thus preventing insert 20 to move outside cavity 16 at edge 12. Thanks to deformations 120 and 140, insert 20 is fixed to body 11 by crimping.
  • tappet 10, insert 20 and/or roller element 40 may have different configurations, by example depending on the intended application of system 1.
  • number, shape and position of device(s) 24 may vary without leaving the scope of the invention.
  • system 1 may constitute a rocker arm, wherein the support element 10 is not a tappet and wherein the roller element 40 is secured to an arm and a tappet, for example acting on a valve stem.
  • system 1 comprises no rolling bearing 50, while pin 30 and roller 40 form together a plain bearing.
  • bearing 50 may be replaced by a bushing.
  • system 1 comprises two antirotation devices 24.
  • both antirotation devices 24 may be formed on tab 23 and be aligned parallel to axis Y1, so that they can be positioned in the same groove formed in bore surrounding tappet 10.
  • the two antirotation devices 24 may be diametrically opposed relative to axis Y1, with a first device formed on tab 23 and a second device formed on tab 24.
  • system 1 is such that the support element 20 is distinct from the body 11 and fixed thereto.
  • the support element 20 comprises at least one antirotation device 24 integrally formed thereto. This antirotation device 24 is adapted to fit and slide in a groove surrounding the body 11.

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

Claims (15)

  1. Mechanisches System (1), aufweisend:
    - einen Stößel (10), welcher einen Körper (11) umfasst,
    - ein Trägerelement (20), welches zwei Bohrungen (258, 268) definiert, welche um eine erste Achse (X1) zentriert sind, wobei das Trägerelement von dem Körper verschieden und an diesem befestigt ist,
    - einen Stift (30), welcher zwei gegenüber liegende Enden (35, 36) aufweist, welche jeweils angepasst sind, in eine der beiden Bohrungen (258, 268) eingepasst zu werden, und
    - ein Rollenelement (40), welches zwischen den beiden Bohrungen (258, 268) entlang der ersten Achse (X1) angeordnet und in Bezug auf den Stift (30) um die erste Achse (X1) drehbeweglich ist,
    dadurch gekennzeichnet, dass
    das Trägerelement (20) an dem Körper (11) durch lokale Verformungen (120, 140) des Körpers (11) befestigt ist und wobei das Trägerelement (20) auch mindestens eine integral mit ihr ausgebildete Drehsicherungsvorrichtung (24) aufweist.
  2. Mechanisches System (1) nach Anspruch 1, wobei der Körper (11) zylindrisch und zu einer zweiten Achse (Y1), welche senkrecht zur ersten Achse (X1) verläuft, zentriert ist, wobei der Körper (11) eine zylindrische äußere Fläche (14) und eine zylindrische innere Fläche (15) aufweist, welche einen Hohlraum (16) abgrenzt, wobei eine erste Verformung (140) der lokalen Verformungen (120, 140) eine auf der äußeren Fläche (14) des Körper (11) ausgebildete Ausnehmung (141) und einen auf der inneren Fläche (15) ausgebildeten Vorsprung (142) umfasst.
  3. Mechanisches System (1) nach Anspruch 2, wobei das Trägerelement (20) einen zentralen Kernbereich (21) und vier seitliche Streifen (22, 23, 25, 26) aufweist, welche sich vom zentralen Kernbereich (21) erstrecken, wobei jeder seitliche Streifen (22, 23, 25, 26) einen gekrümmten Abschnitt (221, 231, 251, 261), welcher sich vom zentralen Kernbereich (21) erstreckt, und einen axialen Abschnitt (222, 232, 252, 262) aufweist, welcher sich entlang einer Richtung parallel zur zweiten Achse (Y1) erstreckt, wobei die gekrümmten Abschnitte (221, 231, 251, 261) des Trägerelements (20) mit Vorsprung (142) innerhalb des Hohlraums (16) in tragenden Kontakt kommen.
  4. Mechanisches System (1) nach einem der Ansprüche 2 oder 3, wobei sich der Körper (11) zwischen einer oberen Kante (12) und einer unteren Kante (13) erstreckt, wobei zweite Verformungen (120) der lokalen Verformungen (120, 140) durch Stanzen von Material der oberen Kante (12) gegen das Trägerelement (20) entlang der ersten Achse (Y1) hergestellt werden.
  5. Mechanisches System (1) nach einem der Ansprüche 3 oder 4, wobei die Drehsicherungsvorrichtung (24) ein Stift ist, welcher von einem der Streifen (23) des Trägerelements (20) entlang einer Richtung parallel zu einer dritten Achse (Z1), welche senkrecht zur ersten Achse (X1) und zur Achse (Y1) verläuft, vorspringt, wobei die Drehsicherungsvorrichtung (24) zum Zusammenwirken mit einer Führungsnut angepasst ist.
  6. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, welches mindestens zwei Drehsicherungsvorrichtungen (24) aufweist, welche integral mit dem Trägerelement (20) ausgebildet sind.
  7. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, wobei das Trägerelement (20) mindestens eine Fläche (254, 264 ; 221, 231, 251, 261) aufweist, welche an mindestens einer Fläche (12; 142) des Körpers (11) ruht, so dass eine auf das Rollenelement (40) ausgeübte Last zumindest teilweise über diese Flächen (12, 254, 264 ; 142, 221, 231, 251, 261) vom Trägerelement (20) auf den Körper (11) übertragen wird.
  8. Mechanisches System (1) nach einem der vorhergehenden Ansprüche 1 bis 7, wobei der Körper (11) aus synthetischem Material, zum Beispiel Polyamid oder Polyetheretherketon, hergestellt ist
  9. Mechanisches System (1) nach einem der vorhergehenden Ansprüche 1 bis 7, wobei der Körper (11) aus Metall, zum Beispiel Stahl, hergestellt ist
  10. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, wobei das Trägerelement (20) aus Metall, zum Beispiel Stahl, hergestellt und geprägt ist, um die Drehsicherungsvorrichtung (24) und Flansche (252, 262), welche die Bohrungen (258, 268) umfassen, zu bilden.
  11. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, welches ein Lager (50) aufweist, welches zwischen das Trägerelement (30) und das Rollenelement (40) eingefügt ist.
  12. Mechanisches System (1) nach einem der vorhergehenden Ansprüche, wobei es einen Nockenstößel bildet, wobei der Stößel (10) entlang einer Bewegungsachse (Y1), welche senkrecht zur ersten Achse (X1) verläuft, beweglich ist und wobei das Rollenelement (40) dafür angepasst ist, auf einer äußeren Fläche einer Nocke zu rollen.
  13. Einspritzpumpe für ein Kraftfahrzeug, wobei sie ein mechanisches System (1) nach einem der Ansprüche 1 bis 12 aufweist.
  14. Ventilaktor für ein Kraftfahrzeug, wobei er ein mechanisches System (1) nach einem der Ansprüche 1 bis 12 aufweist.
  15. Verfahren zum Herstellen eines mechanischen Systems (1) nach einem der Ansprüche 1 bis 12, wobei die Drehsicherungsvorrichtung (24) durch Prägen integral mit dem Trägerelement (20) ausgebildet wird, dann das Trägerelement (20) mit einem Spiel innerhalb des Körpers (11) montiert und dann durch Crimpen am Körper (11) befestigt wird.
EP13186518.0A 2013-09-27 2013-09-27 Stössel, Einspritzpumpe und Ventilaktor mit einem solchen Stössel und Herstellungsverfahren eines solchen Stössel Active EP2853699B1 (de)

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Application Number Priority Date Filing Date Title
EP13186518.0A EP2853699B1 (de) 2013-09-27 2013-09-27 Stössel, Einspritzpumpe und Ventilaktor mit einem solchen Stössel und Herstellungsverfahren eines solchen Stössel
CN201410510117.4A CN104514655B (zh) 2013-09-27 2014-09-28 机械系统，注射泵和阀促动器以及制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13186518.0A EP2853699B1 (de) 2013-09-27 2013-09-27 Stössel, Einspritzpumpe und Ventilaktor mit einem solchen Stössel und Herstellungsverfahren eines solchen Stössel

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EP2853699A1 EP2853699A1 (de) 2015-04-01
EP2853699B1 true EP2853699B1 (de) 2016-05-25

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Cited By (1)

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DE102015218754B4 (de) 2015-09-29 2018-08-30 Continental Automotive Gmbh Hochdruckpumpe

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JP6411275B2 (ja) 2015-04-10 2018-10-24 株式会社オティックス リフタの回り止め構造
EP3124759A1 (de) * 2015-07-30 2017-02-01 Aktiebolaget SKF Rollenvorrichtung, stift zur verwendung in einer rollenvorrichtung und verfahren zum verriegeln eines stiftes
GB2542349A (en) * 2015-09-15 2017-03-22 Gm Global Tech Operations Llc Fuel unit pump and internal combustion engine comprising it
US10119607B2 (en) 2016-04-15 2018-11-06 Koyo Bearings North America Llc Follower mechanism
US20190309658A1 (en) * 2018-04-04 2019-10-10 GM Global Technology Operations LLC Cam follower assembly
US11143059B2 (en) 2019-10-03 2021-10-12 Koyo Bearings North America Llc Tappet assembly with unground outer cup
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CN104514655B (zh) 2019-01-29
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