WO2016019954A1 - Levier oscillant - Google Patents

Levier oscillant Download PDF

Info

Publication number
WO2016019954A1
WO2016019954A1 PCT/DE2015/200342 DE2015200342W WO2016019954A1 WO 2016019954 A1 WO2016019954 A1 WO 2016019954A1 DE 2015200342 W DE2015200342 W DE 2015200342W WO 2016019954 A1 WO2016019954 A1 WO 2016019954A1
Authority
WO
WIPO (PCT)
Prior art keywords
side walls
crossbar
dome
rocker arm
drag lever
Prior art date
Application number
PCT/DE2015/200342
Other languages
German (de)
English (en)
Inventor
Peter Sailer
Michael Schewe
Siegfried Tisch
Original Assignee
Schaeffler Technologies AG & 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 & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Priority to CN201580041891.8A priority Critical patent/CN106574520B/zh
Publication of WO2016019954A1 publication Critical patent/WO2016019954A1/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
    • 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
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • 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
    • 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
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L2305/00—Valve arrangements comprising rollers

Definitions

  • the invention relates to a rocker arm made of sheet metal, in particular for a valve or Einspzzpumpentheb an internal combustion engine, with two connected by a transverse balks side walls, the crossbeam at one end of a dome for supporting the rocker arm on a support element, in front of his cross-beam at its end another end has a follower link and between the ends of a Nockenanlauf phenomenon.
  • a generic drag lever is disclosed in DE 10 2006 048 342 A1. This builds in the Kalotten Scheme comparatively wide and has a cross-section in the dome an M-like profile (see Figure 5).
  • the drag lever should at least build narrow in the dome area, without changing the dome size.
  • this object is achieved in that partial inner segments of the calotte are formed directly by Materialeinformungen in inner surfaces of the laterally passing side walls.
  • a drag lever without the aforementioned disadvantages.
  • a portion of the dome is "relocated" into the adjacent side walls, so there is no material doubling in the cross section with the risk of cracking, thinning, etc.
  • the comparatively low mass lever now builds narrow in the dome area and can be without
  • it is excellently suited as a cam follower in a sliding cam valve drive
  • the support element used hitherto does not have to be reduced in its head area.
  • drag lever As a sheet metal material for the preferably punch-bending technology manufactured drag lever is especially intended for thin-walled steel or aluminum. Possibly. Also other lightweight materials, including fiber or particle-reinforced, come into question. Alternatively, the lever can be made by forming or by machining.
  • drag lever and support element also connected by a retaining clip at one end, or an assembly consisting of drag lever with only the retaining clip.
  • the drag lever in a valve or pump drive (eg, but not exclusively for fuel injection) to be used.
  • a valve or pump drive eg, but not exclusively for fuel injection
  • it can also be used, for example, in compressors or other media conveyors.
  • the side walls, in the longitudinal section between the other end and the Nockenanlauf resonance depend on the crossbar.
  • the drag lever has substantially an inverted U-profile and faces with its crossbar to the respective cam or eccentric.
  • the rocker arm, viewed in the longitudinal direction of the other end to one end, behind the cam contact surface has an intermediate wall connecting its side walls, from the bottom of the crossbar with the hierein shaped dome runs largely flat to one end.
  • the U-profile reverses in this area.
  • the drag lever is free of side walls at one end. This measure simplifies manufacturing and saves mass and material.
  • the side walls or partial areas thereof can also start from one end.
  • the side walls starting from one end to at least the intermediate wall, run straight-unexploded.
  • the rocker arm in the longitudinal direction completely straight-unexhausted or at least to a section at or behind the Nockenanlauf components (seen from one end) or only slightly bulge the longitudinal section at the cam contact surface.
  • the indentations are to be produced, for example, by embossing, which can be done before the side walls are set up on the board. Possibly. can also be extruded or braced. Alternatively, the indentations can also be present as windows, so that the corresponding side wall sections are completely free of material.
  • FIG. 1 shows a three-dimensional view obliquely from above onto a drag lever resting on a support element
  • FIG. 2 shows a longitudinal section through the aforementioned drag lever
  • Figure 3 shows a cross section through the drag lever in support on the support element
  • FIG. 4 shows a spatial bottom view of the drag lever in the dome area.
  • FIG. 1 Shown in FIG. 1 is a narrow and lightweight drag lever 1 for a sliding cam valve drive of an internal combustion engine.
  • the drag lever 1 consisting of thin-walled sheet steel has two side walls 3 connected by a transverse bar 2. These hang in the longitudinal section between another end 8 and a cam contact surface 10 from the transverse bar 2, so that an inverted U-profile can be found in this area.
  • the crossbeam 2 has on its underside, in front of its cross-member 4 at one end 5, a cam-drawn dome 6, via which the drag lever 1 is mounted on a support element 22 (FIG. 1, 3).
  • a follower system 9 here valve stem system
  • a roller extends as a cam contact surface 10
  • the roller mounted on a seated in the side walls 3 bolts 21 is.
  • the side walls 3, viewed in the longitudinal direction toward the one end 5, are connected behind the cam contact surface 10 by an intermediate wall 13.
  • the side walls 3 fall in this case like a wedge on the crossbar 2 from. In a section of the cam follower 1, they pass over into the transverse bar 2, which which lies between a dome center 18 and a dome end 17 at the one end 5 (see also the arrow in FIG. 1).
  • the drag lever 1 has, as well as Figure 1 also well disclosed, between its ends 5, 8 a largely straight course, d. H. its side walls 3, which are now narrow even in the longitudinal section at the dome 6, are only slightly bulged, with a completely straight course, as set out in the introduction, would be particularly advantageous.

Landscapes

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

Abstract

L'invention concerne un levier oscillant (1) destiné au mécanisme de distribution d'un moteur à combustion interne, compostant deux parois latérales (3) reliées par une traverse (2). La traverse (2) présente à une extrémité avant son front transversal une calotte (6) servant au positionnement du levier oscillant (1) sur un élément d'appui, à une autre extrémité avant son front transversal un système d'organe suiveur (9), et entre les deux extrémités une surface de contact de came (10). Le levier oscillant est caractérisé en ce que les segments intérieurs partiels de la calotte (6) sont formés directement par des déformations de matière (11) dans les surfaces intérieures (12) des parois latérales (3) passant devant latéralement.
PCT/DE2015/200342 2014-08-07 2015-06-03 Levier oscillant WO2016019954A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580041891.8A CN106574520B (zh) 2014-08-07 2015-06-03 气门摇臂

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014215701.3 2014-08-07
DE102014215701.3A DE102014215701A1 (de) 2014-08-07 2014-08-07 Schlepphebel

Publications (1)

Publication Number Publication Date
WO2016019954A1 true WO2016019954A1 (fr) 2016-02-11

Family

ID=53498751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/200342 WO2016019954A1 (fr) 2014-08-07 2015-06-03 Levier oscillant

Country Status (3)

Country Link
CN (1) CN106574520B (fr)
DE (1) DE102014215701A1 (fr)
WO (1) WO2016019954A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017006766U1 (de) 2017-07-13 2018-04-30 Schaeffler Technologies AG & Co. KG Schlepphebel für einen Ventiltrieb einer Brennkraftmaschine
DE102017115727A1 (de) 2017-07-13 2018-05-30 Schaeffler Technologies AG & Co. KG Schlepphebel für einen Ventiltrieb einer Brennkraftmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637069A1 (de) * 1996-09-12 1998-03-19 Schaeffler Waelzlager Ohg Schlepphebel für einen Ventiltrieb einer Hubkolbenbrennkraftmaschine
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
US20020043233A1 (en) * 2000-10-12 2002-04-18 Walter Speil Lever-type cam follower
EP1471214A1 (fr) * 2002-02-01 2004-10-27 Nsk Ltd., Galet de came avec axe comprenant un bras basculant concu dans une tole
DE102006048342A1 (de) 2006-10-12 2008-04-17 Schaeffler Kg Schlepphebel
DE102008022601A1 (de) * 2008-05-07 2009-11-12 Schaeffler Kg Hebelartiger Nockenfolger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3707723B2 (ja) * 2000-05-09 2005-10-19 光洋精工株式会社 ロッカアーム用クリップ
DE102006002996A1 (de) * 2006-01-21 2007-08-02 Schaeffler Kg Kipphebel aus Stahlblech

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637069A1 (de) * 1996-09-12 1998-03-19 Schaeffler Waelzlager Ohg Schlepphebel für einen Ventiltrieb einer Hubkolbenbrennkraftmaschine
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
US20020043233A1 (en) * 2000-10-12 2002-04-18 Walter Speil Lever-type cam follower
EP1471214A1 (fr) * 2002-02-01 2004-10-27 Nsk Ltd., Galet de came avec axe comprenant un bras basculant concu dans une tole
DE102006048342A1 (de) 2006-10-12 2008-04-17 Schaeffler Kg Schlepphebel
DE102008022601A1 (de) * 2008-05-07 2009-11-12 Schaeffler Kg Hebelartiger Nockenfolger

Also Published As

Publication number Publication date
DE102014215701A1 (de) 2016-02-11
CN106574520B (zh) 2019-12-10
CN106574520A (zh) 2017-04-19

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