WO2014169909A1 - Culbuteur pour la commande de soupape d'un moteur à combustion interne - Google Patents

Culbuteur pour la commande de soupape d'un moteur à combustion interne Download PDF

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Publication number
WO2014169909A1
WO2014169909A1 PCT/DE2014/200066 DE2014200066W WO2014169909A1 WO 2014169909 A1 WO2014169909 A1 WO 2014169909A1 DE 2014200066 W DE2014200066 W DE 2014200066W WO 2014169909 A1 WO2014169909 A1 WO 2014169909A1
Authority
WO
WIPO (PCT)
Prior art keywords
rocker arm
bearing
roller
section
lever
Prior art date
Application number
PCT/DE2014/200066
Other languages
German (de)
English (en)
Inventor
Andreas GRÖTSCH
Joachim Seitz
Claudia Zielinski
Original Assignee
Schaeffler Technologies Gmbh & 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 Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2014169909A1 publication Critical patent/WO2014169909A1/fr

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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • 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

  • the invention relates to a rocker arm for the Ventethhefo a Brennkra- masch ne, soft ice Bleehformtell is berge rigid with a substantially U-fdrniigen cross-section, with a central bearing parts for its pivotal mounting on an axis arranged in the cylinder head of the machine, with a a roller rotatably mounted on a longitudinal end of the Kipphebeis for Ein- wsrkung a cam on the roll on the rocker arm and having: a located at the other longitudinal end assembly for a mechanism for Einprung the rocker arm on a Ventilstö el.
  • Such a rocker arm is from the document DE 42 34 868 C2 beka nt, which relates to a method for producing a towing or rocker arm. Constructive information on the pivotable mounting of the rocker arm described and illustrated there on the angeord-Neten in Zylloderkapf the machine axis are not this document. refer to.
  • the invention is based on the object.
  • the EIT Sch requires pro ess having a maximum Einschwelt3 # efe of 0.8 mm, this wall thickness, In this case, it is recommended "as shown in Figure 2 of the drawing, the stock tray, to move within the Einsch spaherelchs.
  • the selection of the bearing type is: subject to the following criteria: Hobe claims to the basic load ratings require a lndestroll fashionf f of 1, 0 to 1, ⁇ mm. Due to the small space available ndndder the high required load ratings a voliroiilges bearing is preferably used. Oils version with a lagerkiiig offers the advantage of a simple assembly as well as a better handling of the bearing at the customer.
  • the two cheeks of the cross-sectionally U-shaped tilting arms are produced by cutting, whereby the roller bearings with the bearing sleeves on both sides from the outside into the recess -mungen be pressed.
  • this rocker arm is characterized by the following features or procedures: The pressing in of the two individual bearings, which may be standard standard bushing adapters with or without bearing blocks, into the respective lever cheek; the copy-saving design obviously a. Additional Baurayrnhedarfs for the Ryotlageryng ;. the ability to reduce the diameter of the rocker arm on the center bearing file from 10 mm to 8 mm and thus to install space; the use of non-cutting production technology, namely the punching of usne ne ne für für für für für für für und und und für Ne Ne Ne Ne Ne Ne,
  • rocker arm according to the invention is possible, inter alia, with motorcycle drives and chainsaws.
  • Figure 1 shows a rocker arm of a first ⁇ us Solutionsfom
  • Figure 2 shows the rocker arm of Figure 1 in a vertical section g according to line II
  • Figure 3 shows the rocker arm of Figure 1 in the Ünteransieht
  • Figure 4 shows the rocker arm of Figure 1 in side view with a partial section along line IV -IV of Figure 3;
  • Figure 5 shows a rocker arm of another Ausufungsform in side view
  • Figure 6 shows the rocker arm of Figure 5 in a vertical section along the line
  • Figure 7 shows the rocker arm of Figure 5 in the ünteransieht
  • a rocker arm 1 shown in FIGS. 1 to 4 has the shape of a U-shaped bleed mold, in which m areas of its middle bearing sections 2 are arranged in the two U-edges of the sheet metal coaxial drillholes 3 and 4 in these recesses is a roller bearing ⁇ with a tagerhölse 6Lese zt, which makes it possible to d tilting rocker 1 about an axis m attached to the cylinder head BrennkraitmascMne.
  • a roller 9 is rotatably mounted, on whose iu erer surface, a ochen a rotatable camshaft of Brennkraftrnasehine rolls.
  • the cam acts on the rocker arm 1 for the Verschwenkong.
  • the rocker arm 1 At its left-side longitudinal end 10, the rocker arm 1 a Einsohraobgewinde 11. This is for attaching a valve clearance equalization of the engine org h h n.
  • rocker arm 12 also has the shape of a cross-sectional ü-formlgen Bleohfo mteife.
  • two coaxial boring holes 14 and IS are arranged in the region of its central bearing skins 13.
  • a roller layer 16 with a bearing oil 17 is inserted, while in the left-side recess 15 a roller bearing 18 with a bearing oil 19 is used, the two roller bearings 18 and 18 allow ⁇ the rocker arm 12 to pivot about an axis and which is mounted in the cylinder head of a combustion-rnaschine

Abstract

L'invention concerne un culbuteur pour la commande de soupape d'un moteur à combustion interne, qui est conçu sous la forme d'une pièce façonnée en tôle présentant une section sensiblement en U, présentant un point d'appui central (2) pour son montage oscillant, en un axe disposé dans la culasse du moteur, un galet (9) monté rotatif à une extrémité longitudinale (8) du culbuteur (1), pour l'action d'une came, via le galet (9), sur le culbuteur (1), et un agencement se trouvant à l'autre extrémité longitudinale (10), pour un dispositif permettant que le culbuteur (1) exerce une action sur un poussoir de soupape. L'invention est caractérisée en ce qu'au moins un roulement à rouleaux (5), pourvu d'une douille-palier (6), est enfiché et fixé au point d'appui central (2), dans deux cavités (3) en forme de trous coaxiaux, des deux joues du culbuteur (1) de section en forme de U.
PCT/DE2014/200066 2013-04-18 2014-02-17 Culbuteur pour la commande de soupape d'un moteur à combustion interne WO2014169909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013206972.3A DE102013206972A1 (de) 2013-04-18 2013-04-18 Kipphebel für den Ventiltrieb einer Brennkraftmaschine
DE102013206972.3 2013-04-18

Publications (1)

Publication Number Publication Date
WO2014169909A1 true WO2014169909A1 (fr) 2014-10-23

Family

ID=50382177

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2014/200066 WO2014169909A1 (fr) 2013-04-18 2014-02-17 Culbuteur pour la commande de soupape d'un moteur à combustion interne

Country Status (2)

Country Link
DE (1) DE102013206972A1 (fr)
WO (1) WO2014169909A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497307A (en) * 1984-02-03 1985-02-05 General Motors Corporation Integral rocker arm hydraulic lifter and bearing assembly
US4878463A (en) * 1987-10-01 1989-11-07 The Torrington Company Needle bearing rocker arm assembly
US5195475A (en) * 1992-05-29 1993-03-23 The Torrington Company Rocker arm assembly
DE4234868C2 (de) 1992-10-16 1999-10-28 Schaeffler Waelzlager Ohg Verfahren zur Herstellung eines Schlepp- oder Kipphebels
DE102009048873A1 (de) * 2008-10-17 2010-05-06 Schaeffler Kg Versetzt ausgebildeter Kipphebel für den Einsatz unter Schubbelastung
JP2011043074A (ja) * 2009-08-19 2011-03-03 Jtekt Corp ロッカアーム
US20120199087A1 (en) * 2011-02-08 2012-08-09 Honda Motor Co., Ltd. Rocker arm structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497307A (en) * 1984-02-03 1985-02-05 General Motors Corporation Integral rocker arm hydraulic lifter and bearing assembly
US4878463A (en) * 1987-10-01 1989-11-07 The Torrington Company Needle bearing rocker arm assembly
US5195475A (en) * 1992-05-29 1993-03-23 The Torrington Company Rocker arm assembly
DE4234868C2 (de) 1992-10-16 1999-10-28 Schaeffler Waelzlager Ohg Verfahren zur Herstellung eines Schlepp- oder Kipphebels
DE102009048873A1 (de) * 2008-10-17 2010-05-06 Schaeffler Kg Versetzt ausgebildeter Kipphebel für den Einsatz unter Schubbelastung
JP2011043074A (ja) * 2009-08-19 2011-03-03 Jtekt Corp ロッカアーム
US20120199087A1 (en) * 2011-02-08 2012-08-09 Honda Motor Co., Ltd. Rocker arm structure

Also Published As

Publication number Publication date
DE102013206972A1 (de) 2014-11-06

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