EP1723317B1 - Levier destine a la commande de soupapes d'un moteur a pistons - Google Patents

Levier destine a la commande de soupapes d'un moteur a pistons Download PDF

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Publication number
EP1723317B1
EP1723317B1 EP05745191A EP05745191A EP1723317B1 EP 1723317 B1 EP1723317 B1 EP 1723317B1 EP 05745191 A EP05745191 A EP 05745191A EP 05745191 A EP05745191 A EP 05745191A EP 1723317 B1 EP1723317 B1 EP 1723317B1
Authority
EP
European Patent Office
Prior art keywords
lever
side part
hand side
width
tapers
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.)
Active
Application number
EP05745191A
Other languages
German (de)
English (en)
Other versions
EP1723317A1 (fr
Inventor
Christof Faria
Frank Himsel
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
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 Schaeffler KG filed Critical Schaeffler KG
Publication of EP1723317A1 publication Critical patent/EP1723317A1/fr
Application granted granted Critical
Publication of EP1723317B1 publication Critical patent/EP1723317B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-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
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20882—Rocker arms

Definitions

  • the invention relates to a lever for the valve control of a reciprocating engine, preferably for the Hubventil tortureung an internal combustion piston engine, such as rocking, tilting or drag lever, with a roller disposed in a space between two side parts of the lever and on a lever mounted in the bearing bolt is stored.
  • Levers of the above type are preferably used in Hubventilberichtungen of internal combustion piston engines.
  • a bore for the installation of the bearing pin is to be introduced in the side parts so that they are coaxial with each other.
  • This is usually done with a non-cutting formed (sheet metal) lever by opposing punching of the two sides of the lever, wherein the leached pieces of material are first pressed into the roller bag lying between the two side parts and then removed from there.
  • This method is not possible if the sum of the thicknesses of the pieces of material dissolved out is greater than the width of the roller bag present in the lever.
  • the invention has for its object to ensure an opposing punching for the preparation of the holes in both sides of the lever even with such levers, the constructively have a width of the roller bag, which is smaller than the sum of the thicknesses of both sides.
  • the invention is based on the finding that the method of counter-perforation is applicable to such levers under the condition that the sum of the thicknesses of the pieces of material leached out during punching is smaller than the width of the roll pocket.
  • the invention is therefore based on a lever for the valve control of a piston engine, such as rocking, tilting or drag lever, with a provided for the support on a rotatable cam roller, which lies in a trapped by a left and a right side part of the roller bag and on a bearing mounted in the lever bearing pin is rotatably mounted.
  • the wall thicknesses should be reduced so far that the width of the roller bag is equal to or greater than the sum of the locally reduced lever wall thicknesses of the left and right side part.
  • the rejuvenation of the side parts can be carried out by Ur-, forming or material-removing processes. At the same time, it can advantageously replace the depressions often introduced retroactively in known levers for caulking the bearing bolts.
  • the shape of the taper is optional, provided that the maximum permissible thickness of the lever wall thicknesses in the region of these tapers is not exceeded.
  • the tapers according to manufacturing requirements on the outer sides, the inner sides of the side parts or on both sides.
  • a taper on the outside of the left side part may be paired with a taper on the inside of the right side part.
  • a taper on the inside of the left side part can be combined with a taper on the inside in the right side part.
  • Other possibilities are to combine the four possible positions of the rejuvenations. The choice of combinations may result according to design requirements, resulting from the application operating conditions or manufacturing constraints.
  • a preferred embodiment of the invention is to install in the two side parts each lying outside the tapers. This gives the opportunity to make in each case the caulking of the bearing pin in the region of the taper, wherein the connection techniques between side panels and the bearing pin can be maintained.
  • Fig. 1 shows a Rollenschlepphebel, as he can find in the Hubventil penetrateung of internal combustion piston engines use. It consists essentially of a left side part 1, a right side part 2, a connecting web 3 (bearing cup) and a connecting web 4 (bracket).
  • a roller 6 which is rotatably mounted on a bearing pin 7.
  • a taper 8 of the same is formed at least on the outside of the left side part 1.
  • the tapers 8, 9, 10 and 16 are made so deep that the sum of the supporting width 12 of the left side part 1 and the supporting width 13 of the right side part 2 for the bearing pin 7 is less than or equal to the same size as the total width of the 11th the roller bag 5. It follows that the sum of the thicknesses of the dissolved in opposite holes punching Materialstüdce is also smaller or at most equal to the total width 11 of the roller bag 5.
  • the preferred method for producing the holes 14 for the bearing pin 7 in the side parts 1, 2 can be maintained by opposing punching despite reduction of the roller bag 5.
  • the structure described above makes it possible to reduce the roller bag 5 in its overall width 11 as far as constructive, technological and operational requirements allow this.
  • the material used for the lever and for the roller 6 can thereby be reduced as well as its size. This is also a reduction of the mass to be moved, which opens up opportunities for optimizing the performance of the relevant reciprocating engines. This minimization is limited only by strength requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Claims (6)

  1. Levier destiné à la commande de soupapes d'un moteur à pistons, tel que levier oscillant, culbuteur ou levier entraîneur, avec un galet (6) qui est disposé dans une poche à galet (5) formée par une partie latérale de gauche (1) et une partie latérale de droite (2) du levier et qui est monté à rotation sur un pivot (7) disposé dans le levier, caractérisé en ce que la largeur (11) de la poche à galet (5) est inférieure à la somme des épaisseurs totales de la partie latérale de gauche (1) et de la partie latérale de droite (2) du levier, sachant que la partie latérale de gauche (1) ainsi que la partie latérale de droite (2) sont, dans la région d'un perçage (14) destiné à recevoir le pivot (7), rétrécies (rétrécissements 8, 9, 10, 16) dans une mesure telle que la somme de la largeur (12) de la partie latérale de gauche (1) portant le pivot (7) et de la largeur portante (13) de la partie latérale de droite (2) est inférieure à la largeur (11) de la poche à galet (5).
  2. Levier selon la revendication 1, caractérisé en ce qu'au moins un des rétrécissements (8, 9, 10, 16) dans les parties latérales (1, 2) du levier est produit par formage.
  3. Levier selon la revendication 1, caractérisé en ce qu'au moins un des rétrécissements (8, 9, 10, 16) dans les parties latérales (1, 2) du levier est produit par enlèvement de matière.
  4. Levier selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le rétrécissement (8, 10) dans la partie latérale de gauche (1) et dans la partie latérale de droite (2) est respectivement disposé à l'extérieur ou à l'intérieur (rétrécissement 9, 16).
  5. Levier selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le pivot (7) présente, dans la région d'au moins un des rétrécissements extérieurs (8, 16), des moyens pour le blocage en rotation et/ou en position, de préférence un matage (15).
  6. Levier selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une partie latérale (1) présente un rétrécissement disposé à l'extérieur (8 ou 16), tandis que sur l'autre partie latérale (2), le rétrécissement (9 ou 10) est disposé sur le côté tourné vers la poche à galet (5).
EP05745191A 2004-03-12 2005-02-09 Levier destine a la commande de soupapes d'un moteur a pistons Active EP1723317B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012142A DE102004012142A1 (de) 2004-03-12 2004-03-12 Hebel für die Ventilsteuerung einer Kolbenmaschine
PCT/EP2005/001273 WO2005088083A1 (fr) 2004-03-12 2005-02-09 Levier destine a la commande de soupapes d'un moteur a pistons

Publications (2)

Publication Number Publication Date
EP1723317A1 EP1723317A1 (fr) 2006-11-22
EP1723317B1 true EP1723317B1 (fr) 2007-06-20

Family

ID=34895287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05745191A Active EP1723317B1 (fr) 2004-03-12 2005-02-09 Levier destine a la commande de soupapes d'un moteur a pistons

Country Status (5)

Country Link
US (1) US7444972B2 (fr)
EP (1) EP1723317B1 (fr)
CN (1) CN100410499C (fr)
DE (2) DE102004012142A1 (fr)
WO (1) WO2005088083A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011007450A1 (de) 2011-04-15 2012-10-18 Schaeffler Technologies AG & Co. KG Schlepphebel eines Ventiltriebs und Verfahren zu dessen Herstellung
JP6721374B2 (ja) 2016-03-29 2020-07-15 株式会社オティックス ロッカアーム及びロッカアームの製造方法
USD818017S1 (en) * 2017-04-25 2018-05-15 Stolle Machinery Company, Llc Multi-stroke swing lever

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3194200A (en) * 1962-10-19 1965-07-13 Parsons Corp Process of manufacturing rocker arm
DE19742778A1 (de) 1997-09-27 1999-04-01 Schaeffler Waelzlager Ohg Hebel für die Ventilsteuerung einer Brennkraftmaschine
JP3582977B2 (ja) * 1998-01-21 2004-10-27 中西金属工業株式会社 ロッカーアームの製造方法
JP3497368B2 (ja) * 1998-01-21 2004-02-16 中西金属工業株式会社 ロッカーアームの製造方法及び製造装置
US6199527B1 (en) * 1998-03-12 2001-03-13 Nsk Ltd. Sheet metal rocker arm, manufacturing method thereof, cam follower with said rocker arm, and assembling method thereof
JP3526757B2 (ja) * 1998-08-04 2004-05-17 本田技研工業株式会社 内燃機関用動弁装置
DE10030341C2 (de) * 2000-06-20 2003-04-10 Ina Schaeffler Kg Verfahren zur Herstellung eines hebelartigen Nockenfolgers
AU2002366024A1 (en) 2001-11-21 2003-06-10 Nsk Ltd. Cam follower with sheet metal rocker arm
US6978750B2 (en) * 2002-02-01 2005-12-27 Nsk Ltd. Cam follower provided with rocker arm made of sheet metal
JP4059727B2 (ja) * 2002-08-01 2008-03-12 株式会社オティックス ロッカアームの軸穴打抜き装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN100410499C (zh) 2008-08-13
DE102004012142A1 (de) 2005-09-29
WO2005088083A1 (fr) 2005-09-22
US7444972B2 (en) 2008-11-04
CN1930376A (zh) 2007-03-14
EP1723317A1 (fr) 2006-11-22
DE502005000903D1 (de) 2007-08-02
US20070151533A1 (en) 2007-07-05

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