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WO2006010415A1 - Poussoir pouvant etre sollicite periodiquement pour mecanisme de commande de soupape ou de pompe - Google Patents

Poussoir pouvant etre sollicite periodiquement pour mecanisme de commande de soupape ou de pompe Download PDF

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Publication number
WO2006010415A1
WO2006010415A1 PCT/EP2005/006658 EP2005006658W WO2006010415A1 WO 2006010415 A1 WO2006010415 A1 WO 2006010415A1 EP 2005006658 W EP2005006658 W EP 2005006658W WO 2006010415 A1 WO2006010415 A1 WO 2006010415A1
Authority
WO
WIPO (PCT)
Prior art keywords
recess
rotation
plunger
shirt
indentation
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.)
Ceased
Application number
PCT/EP2005/006658
Other languages
German (de)
English (en)
Inventor
Josef GRÖSCHEL
Dieter Horst Galter
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.)
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler KG
Schaeffler 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 INA Schaeffler KG, Schaeffler KG filed Critical INA Schaeffler KG
Publication of WO2006010415A1 publication Critical patent/WO2006010415A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem
    • 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
    • F01L2301/00—Using particular materials
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • 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

Definitions

  • the invention relates to a periodically acted on tappet for a Ven ⁇ til- or pump drive, with a hollow cylindrical, closed at one end by a bottom shirt, which can be arranged over its outer jacket in a guide bore of a surrounding construction and a recess with Aus ⁇ positioned therein against rotation which Ver ⁇ rotation lock projects beyond the shirt with a radially outer portion and die ⁇ this outer portion in a guide bore intersecting longitudinal groove is feasible and wherein a thin-walled ring rotates on an inner jacket of the shirt, which in the region of the recess a molding with a therein extending, radially inner portion of the rotation.
  • the anti-rotation device which can be seen consists of a roller needle, which extends radially inwards over one on the inner jacket
  • This ring has several functions, for example, it serves to delimit a storage space arranged below the floor for hydraulic means and for the simple formation of a channel for the supply of the like as a "counterholder” for the rotation lock radially inwards.
  • the object of the invention is therefore to provide a plunger of the aforementioned type, in which the cited disadvantages are eliminated.
  • this object is achieved in that the Verfitsiche ⁇ tion is formed as directly injection molded at the recess plastic part.
  • the nozzle of the device for plastic injection molding is attached directly to the recess of the shirt.
  • the shape of the radially outer portion of the rotation is direct part of the nozzle portion of the Spritzeinrich ⁇ device. Possibly. can also be used a separate injection mold, which is removed after the actual injection process.
  • the recess may be like a window according to an embodiment of the invention. However, due to the injection of the anti-rotation any shapes are conceivable and provided. The tolerances of the recess can also be refined. Due to production possibly existing burr is of no importance.
  • the indentation of the ring is at least partially free on the inner surface of the skirt over the recess, at least one undercut region for the inflow of the plastic is created, by which an excellent positional fixation of the anti-twist protection is thus represented.
  • a further fixation of the rotation can be realized if necessary by measures on its radially outer portion.
  • the outer portion of the rotation with at least one projection projecting beyond the recess project beyond the outer shell of the shirt and to leave fitting.
  • the outer portion may also be designed such that it surrounds the recess on the outer jacket of the shirt.
  • the outer section in such a way that, simply said, it is “smaller” than the recess and thus definitely does not protrude beyond it.
  • injection-molded anti-rotation eliminates the usual in the art handling for the needle roller or the like. At the same time it is determined that the injection-molded Vercardsiche ⁇ tion runs virtually stress-free in the shirt. In addition, oil leaks are avoided at least in the injection area at the recess.
  • the invention is suitably explained in more detail with reference to the drawing. It shows the only figure a plunger, here a tappet for a Ven- tiltrieb an internal combustion engine, in longitudinal section.
  • the figure discloses a tappet designed as a tappet 1 for a valve train of an internal combustion engine.
  • the ram 1 consists of a hollow cylindrical shirt 4. This is closed on a front side 2 by a direction in Auswande ⁇ tion direction of a cam, not shown, cylindrically curved Bo 3. Over his outer jacket 5, the shirt 4 extends in a guide bore 6 of a surrounding structure 7 (cylinder head). It can also be seen that at least one window-like recess 8 is applied in the shirt 4. In this runs a below explained in more detail, injection-molded anti-rotation 9. This is about their radially outer Ab ⁇ section 10 in a longitudinal groove 12 of the guide bore 6 added.
  • the shirt 4 On an inner jacket 13, the shirt 4 has a largely fitting, thin-walled and circumferential ring 14, preferably made of sheet metal.
  • This ring 14 is provided in the region of the anti-rotation 9 with a recess 15.
  • this indentation 15 projects beyond a height of the recess 8. It may be advantageous (in most cases) that the indentation 15 also extends beyond the recess 8 in the circumferential direction.
  • the anti-twist device 9 is made of plastic that is injection-molded directly on the recess 8. This thus completely fills the cavity 17 formed by the indentation 15 and recess 8 with its radially inner portion 16. Because, as mentioned, the indentation 15 protrudes beyond the recess 8 at least in the vertical direction, undercuts for the Given molding compound. Thus, an excellent position assurance of Ver ⁇ rotation lock 9 is created.
  • a radially outer portion 10 of the anti-rotation 9 extends with its complementary to the longitudinal groove 12 outer shell 18 for the purpose of Ver ⁇ rotation of the plunger 1 directly in the longitudinal groove 12th
  • the nozzle of the injection molding device is advantageously attached directly to the recess 8.
  • the shape of the radially outer portion 10, with its possibly over the height of the recess 8 protruding lugs 19, is vorhal ⁇ th by the nozzle. can also be applied a separate tool, which is removed after the actual injection molding.
  • the injected anti-twist device 9 sits perfectly stationary in the shirt area and no longer leads, as in the state of the art described at the outset, to a widening or loosening of the rim 14. In addition, no openings 8 are formed in the region of the recess unnecessary stresses in the shirt 4 introduced.
  • the plunger 1 is provided in its use in a valve train of an internal combustion engine with a not to be described in detail, hydraulic lash adjuster 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un poussoir (1) pouvant être sollicité périodiquement pour un mécanisme de commande de soupape ou de pompe, comprenant une chemise (4) cylindrique creuse, fermée sur sa face avant (2), par un fond (3), ladite chemise pouvant être disposée par l'intermédiaire de son enveloppe extérieure (5) dans un trou de guidage (6) d'une structure d'environnement (7) et présentant une cavité (8) contenant un système de blocage en rotation (9) positionné dedans. Ledit système de blocage en rotation (9) fait saillie de la chemise (4), par une section extérieure radiale (10) et cette section extérieure (10) peut être guidée dans une rainure longitudinale (12) coupant le trou de guidage (6). Une bague (14) à paroi fine tourne sur une enveloppe intérieure (13) de la chemise (4) et présente, dans la zone de la cavité (8), une partie moulée (15) munie d'une section intérieure radiale (16) du système de blocage en rotation (9), qui s'étend dedans. Le système de blocage en rotation (9) se présente sous forme de pièce en plastique moulée par injection directement sur la cavité (8).
PCT/EP2005/006658 2004-07-24 2005-06-21 Poussoir pouvant etre sollicite periodiquement pour mecanisme de commande de soupape ou de pompe Ceased WO2006010415A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004036108A DE102004036108A1 (de) 2004-07-24 2004-07-24 Periodisch beaufschlagbarer Stößel für einen Ventil- oder Pumpentrieb
DE102004036108.8 2004-07-24

Publications (1)

Publication Number Publication Date
WO2006010415A1 true WO2006010415A1 (fr) 2006-02-02

Family

ID=35668610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/006658 Ceased WO2006010415A1 (fr) 2004-07-24 2005-06-21 Poussoir pouvant etre sollicite periodiquement pour mecanisme de commande de soupape ou de pompe

Country Status (2)

Country Link
DE (1) DE102004036108A1 (fr)
WO (1) WO2006010415A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010048135A1 (de) 2010-10-11 2012-04-12 Schaeffler Technologies Gmbh & Co. Kg Aktuator eines elektrohydraulischen Gaswechselventiltriebs einer Brennkraftmaschine
EP3081771B1 (fr) 2015-04-15 2019-03-13 Aktiebolaget SKF Galet de came, pompe à injection et actionneur de soupape comprenant un tel suiveur de came et procédé de fabrication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525442A1 (fr) * 1991-07-26 1993-02-03 Orbital Fluid Technologies, Inc. Boîte de bobinage de solénoide et moule protecteur et méthode de fabrication
DE4225363A1 (de) * 1992-07-31 1994-02-03 Bosch Gmbh Robert Kraftstoffeinspritzpumpe für Brennkraftmaschinen
DE19728100A1 (de) * 1997-07-02 1999-01-07 Schaeffler Waelzlager Ohg Stößel für einen Ventiltrieb einer Brennkraftmaschine
US20020124823A1 (en) * 2001-03-07 2002-09-12 Christof Faria Valve train of an internal combustion engine comprising a switchable, rotationally symmetrical component
JP2003184514A (ja) * 2001-12-13 2003-07-03 Otics Corp 可変動弁機構
DE10332981A1 (de) * 2003-07-21 2005-02-10 Bayerische Motoren Werke Ag Ventilströßeleinrichtung, insbesondere drehgesicherter Tassenstößel mit gekrümmter Nockenfolgefläche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324756C2 (de) * 1993-07-23 1997-06-12 Iav Motor Gmbh Verdrehsicherung für einen Ventilstößel
DE19515284A1 (de) * 1995-04-26 1996-10-31 Schaeffler Waelzlager Kg Nockenfolger eines Ventiltriebs einer Brennkraftmaschine
DE19957772A1 (de) * 1999-12-01 2001-06-07 Bayerische Motoren Werke Ag Drehgesicherter Ventilstößel für Ventiltriebe von Brennkraftmaschinen, insbesondere Tassenstößel
DE10332980A1 (de) * 2003-07-21 2005-02-10 Bayerische Motoren Werke Ag Ventilstößeleinrichtung, insbesondere drehgesicherter Tassenstößel mit gekrümmter Nockenfolgefläche

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525442A1 (fr) * 1991-07-26 1993-02-03 Orbital Fluid Technologies, Inc. Boîte de bobinage de solénoide et moule protecteur et méthode de fabrication
DE4225363A1 (de) * 1992-07-31 1994-02-03 Bosch Gmbh Robert Kraftstoffeinspritzpumpe für Brennkraftmaschinen
DE19728100A1 (de) * 1997-07-02 1999-01-07 Schaeffler Waelzlager Ohg Stößel für einen Ventiltrieb einer Brennkraftmaschine
US20020124823A1 (en) * 2001-03-07 2002-09-12 Christof Faria Valve train of an internal combustion engine comprising a switchable, rotationally symmetrical component
JP2003184514A (ja) * 2001-12-13 2003-07-03 Otics Corp 可変動弁機構
DE10332981A1 (de) * 2003-07-21 2005-02-10 Bayerische Motoren Werke Ag Ventilströßeleinrichtung, insbesondere drehgesicherter Tassenstößel mit gekrümmter Nockenfolgefläche

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 11 5 November 2003 (2003-11-05) *

Also Published As

Publication number Publication date
DE102004036108A1 (de) 2006-02-16

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