EP2643561A1 - Schaltbarer schlepphebel - Google Patents
Schaltbarer schlepphebelInfo
- Publication number
- EP2643561A1 EP2643561A1 EP11738728.2A EP11738728A EP2643561A1 EP 2643561 A1 EP2643561 A1 EP 2643561A1 EP 11738728 A EP11738728 A EP 11738728A EP 2643561 A1 EP2643561 A1 EP 2643561A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- axis
- turns
- group
- leg
- 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.)
- Granted
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
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating valves
-
- 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
-
- 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
- Y10T74/21—Elements
- Y10T74/2101—Cams
- Y10T74/2107—Follower
Definitions
- the invention relates to a switchable rocker arm of a valve train of an internal combustion engine, with an inner and an outer lever, wherein the rocker arm at one end at one end a system for a gas exchange valve and at the other end a complementary surface for a support element and one of the levers a top surface has a contact surface for a quasihubnocken and the other lever has a contact surface for a small or Nullhubnocken, wherein the levers via coupling means are connected to each other and relatively pivotally movable through holes on a common axis to each other, which axis of at least one Windungsb a Drehschenkelfeder is projected as a cam return spring, wherein a protruding from an end side of the Windungsevers first leg on a first clamping point of the outer lever and a projecting from another end side of the Windungsongs second leg to a second E Inspection point of the inner lift!
- the winding package comprises at least one jack play and wherein an axial fixation of the axis caused by the system tension caused desachslix, segmented system of Windungsvons on the socket and thus their desachsierter plant via a segment-like part whose inner shell is shown on the axis.
- Such a drag lever is known from DE 10 2006 046 574 A1, Fig. 1 previously. Shown is a bilaterally separated from the outer lever with a stump. The corresponding bushing in turn is surrounded by a winding package of a torsion spring, during system clamping the winding package presses the bushing segment-wise onto the axle, resulting in its axial fixation.
- the bushing protrudes with a radially outwardly projecting from its inner wall into a complementary circumferential groove of the axis.
- this object is achieved in that the clamping points of the two legs of the Windungsvons are positioned so that an intersecting force vectors in the Einspannticianen [effective direction of the two contact forces] included angle ⁇ in the range of 90 ° ⁇ ⁇ 180 °.
- the trailing lever at the one end at the valve stem support should be a retracted trajectory.
- the inner lever consists expediently of only a straight end bar, at the derr, each other cranked arms of the outer lever expire.
- sufficient space for the Achsstümpfe is created with the Windungseveren.
- the stub axles preferably do not protrude beyond the outer walls of the outer lever outside of the drawn-in section at the end of the gate.
- a particularly secure fixation of the axle is present when, as proposed, a radial collar protrudes from the corresponding bush, which engages positively in a complementary groove of the axle.
- the outer lever of the finger lever preferably, but not exclusively, a box-like geometry in plan view, wherein in the recess of the inner lifting! is included.
- a box-like geometry in plan view, wherein in the recess of the inner lifting! is included.
- the scope of this invention includes drag levers, which are provided, for example, for acting on at least one exhaust valve, wherein the outer lever of "regular” Indeedhubnocken acted upon is, whereas the inner lever of a "staggered” additional cam low lift contactable over which an internal exhaust gas recirculation can be displayed.
- Figure 1 is a side view of the finger lever
- FIG. 2 shows a plan view of the drag lever according to FIG. 1 and FIG. 3 shows a cross section through the drag lever in the region of the axis.
- the drag lever 1 has at one end 5 on a bottom 4 a system 6 for a gas exchange valve.
- the outer lever 3 has on the underside 4 a complementary surface 8 for mounting on a head of a support element.
- the drag lever 1 has on a top side 9 of its inner lever 2 a here designed as a roller contact surface 10 for a Constant.
- a roller contact surface 10 for a Constant.
- the levers 2, 3 extend at one end 5 via their bores 13, 14 on a common axis 15 so as to be relatively pivotable relative to one another.
- the axis 15 is "flying" with respect to the holes 13, 14 held, ie it is not axially fixed by a caulking, welding, snap ring fuse, etc.
- the levers 2, 3 are braced to one another in a "folding knife-like" manner by a lost-motion spring designed as a turning leg spring 17.
- the torsion spring 17 consists of two sections, which are stubs 27 of the axis protruding on both sides from outer sides of the outer lever 3 15 extend as a respective winding package 16.
- a protruding from another, inner end face 21 of the respective Windungsvons 16 second leg 22 is below the axis 15 with a short arm 29 upwards away.
- Each short arm 29 merges into a cross bar 30, which acts on a finger-like, from the inner lever 2 at one end 5 upwardly projecting lug 31, on which the second clamping point 23 is located.
- the crossbars 30 engage over end pieces of the inner lever 2 and are united to form a common crosspiece.
- each winding package 16 consists of only two windings at the bottom during system tensions.
- the clamping points 20, 23 of the two legs 19, 22 of the winding package 16 are positioned such that a force vector intersecting in the clamping points 20, 23 [effective direction of the two contact forces Fi, F 2 ] included angle ⁇ in the range 90 ° ⁇ ⁇ 180 ° (see Fig. 1).
- an angle ⁇ of clearly ⁇ 180 ° is selected so as not to completely stop the system distortion. ben.
- this is realized by the aforementioned "raising" of the finger-like projection 31 with the second clamping point 23 on its inner side 33 for the second leg 22 of the rotary leg spring 17.
- the "low-lying" second clamping point could be retained according to DE 10 2006 046 574 A1, FIG. 1, and the first clamping point 20 for the first leg 19 would be correspondingly “raised” here.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Clamps And Clips (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Springs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010052551A DE102010052551A1 (de) | 2010-11-25 | 2010-11-25 | Schaltbarer Schlepphebel |
| PCT/EP2011/063296 WO2012069215A1 (de) | 2010-11-25 | 2011-08-02 | Schaltbarer schlepphebel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2643561A1 true EP2643561A1 (de) | 2013-10-02 |
| EP2643561B1 EP2643561B1 (de) | 2015-04-15 |
Family
ID=44629446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11738728.2A Active EP2643561B1 (de) | 2010-11-25 | 2011-08-02 | Schaltbarer schlepphebel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8783219B2 (de) |
| EP (1) | EP2643561B1 (de) |
| CN (1) | CN103228875B (de) |
| DE (1) | DE102010052551A1 (de) |
| WO (1) | WO2012069215A1 (de) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9267396B2 (en) | 2010-03-19 | 2016-02-23 | Eaton Corporation | Rocker arm assembly and components therefor |
| US9938865B2 (en) | 2008-07-22 | 2018-04-10 | Eaton Corporation | Development of a switching roller finger follower for cylinder deactivation in internal combustion engines |
| WO2015134466A1 (en) | 2014-03-03 | 2015-09-11 | Eaton Corporation | Valve actuating device and method of making same |
| US10415439B2 (en) | 2008-07-22 | 2019-09-17 | Eaton Intelligent Power Limited | Development of a switching roller finger follower for cylinder deactivation in internal combustion engines |
| US9228454B2 (en) | 2010-03-19 | 2016-01-05 | Eaton Coporation | Systems, methods and devices for rocker arm position sensing |
| US9581058B2 (en) | 2010-08-13 | 2017-02-28 | Eaton Corporation | Development of a switching roller finger follower for cylinder deactivation in internal combustion engines |
| US20190309663A9 (en) | 2008-07-22 | 2019-10-10 | Eaton Corporation | Development of a switching roller finger follower for cylinder deactivation in internal combustion engines |
| US10087790B2 (en) | 2009-07-22 | 2018-10-02 | Eaton Corporation | Cylinder head arrangement for variable valve actuation rocker arm assemblies |
| US9194261B2 (en) | 2011-03-18 | 2015-11-24 | Eaton Corporation | Custom VVA rocker arms for left hand and right hand orientations |
| US11181013B2 (en) | 2009-07-22 | 2021-11-23 | Eaton Intelligent Power Limited | Cylinder head arrangement for variable valve actuation rocker arm assemblies |
| US9885258B2 (en) | 2010-03-19 | 2018-02-06 | Eaton Corporation | Latch interface for a valve actuating device |
| US9874122B2 (en) | 2010-03-19 | 2018-01-23 | Eaton Corporation | Rocker assembly having improved durability |
| CN104061039A (zh) * | 2014-06-30 | 2014-09-24 | 绵阳富临精工机械股份有限公司 | 一种发动机气门升程两级可变调节压杆总成 |
| WO2016007486A1 (en) * | 2014-07-07 | 2016-01-14 | Eaton Corporation | Switching rocker arm assembly having spring retaining configuration |
| KR101526434B1 (ko) * | 2014-12-04 | 2015-06-05 | 현대자동차 주식회사 | 가변 밸브 리프트 장치 |
| USD791190S1 (en) | 2015-07-13 | 2017-07-04 | Eaton Corporation | Rocker arm assembly |
| USD833482S1 (en) | 2015-07-13 | 2018-11-13 | Eaton Corporation | Rocker arm |
| CN108138608A (zh) | 2015-08-05 | 2018-06-08 | 伊顿智能动力有限公司 | 用于内部废气再循环的切换摇臂 |
| CN109952415B (zh) | 2016-10-07 | 2022-03-11 | 伊顿智能动力有限公司 | 具有抽气止动件的三辊摇臂 |
| US10472998B2 (en) | 2018-02-16 | 2019-11-12 | Delphi Technologies Ip Limited | Switchable rocker arm with lash adjustment |
| WO2019161976A1 (en) | 2018-02-23 | 2019-08-29 | Eaton Intelligent Power Limited | Switching roller finger follower with re-settable starting position |
| DE102018002671A1 (de) * | 2018-03-31 | 2019-10-02 | Wabco Europe Bvba | Vorrichtung zum Verbinden eines Betätigungshebels mit einem Steuerschieber eines Steuerventils |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5544626A (en) | 1995-03-09 | 1996-08-13 | Ford Motor Company | Finger follower rocker arm with engine valve deactivator |
| DE10155800A1 (de) * | 2001-11-14 | 2003-05-22 | Ina Schaeffler Kg | Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
| US6532920B1 (en) | 2002-02-08 | 2003-03-18 | Ford Global Technologies, Inc. | Multipositional lift rocker arm assembly |
| US6668779B2 (en) * | 2002-05-08 | 2003-12-30 | Delphi Technologies, Inc. | Two-step finger follower rocker arm assembly |
| DE10310220A1 (de) | 2003-03-08 | 2004-09-16 | Daimlerchrysler Ag | Vorrichtung zur Koppelung bzw. Entkoppelung zweier Betätigungshebel eines Ventiltriebes einer Brennkraftmaschine und Verfahren hierzu |
| DE102004007766A1 (de) * | 2003-03-20 | 2004-09-30 | Ina-Schaeffler Kg | Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
| DE102005035053A1 (de) | 2005-07-27 | 2007-02-01 | Schaeffler Kg | Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
| DE102006046574B4 (de) | 2006-09-30 | 2017-12-28 | Schaeffler Technologies AG & Co. KG | Schaltbarer Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
| DE102007022826A1 (de) * | 2007-05-15 | 2008-11-20 | Schaeffler Kg | Bauteil für einen Ventiltrieb einer Brennkraftmaschine |
| DE102008025503A1 (de) | 2007-06-04 | 2008-12-11 | Schaeffler Kg | Rollenschwinghebel zur Ventildeaktivierung |
| DE102007029465A1 (de) * | 2007-06-26 | 2009-01-08 | Schaeffler Kg | Schaltbarer Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
| DE102010011420A1 (de) * | 2009-03-19 | 2010-09-30 | Schaeffler Technologies Gmbh & Co. Kg | Schaltbarer Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
-
2010
- 2010-11-25 DE DE102010052551A patent/DE102010052551A1/de not_active Withdrawn
-
2011
- 2011-08-02 WO PCT/EP2011/063296 patent/WO2012069215A1/de not_active Ceased
- 2011-08-02 EP EP11738728.2A patent/EP2643561B1/de active Active
- 2011-08-02 US US13/883,873 patent/US8783219B2/en active Active
- 2011-08-02 CN CN201180056819.4A patent/CN103228875B/zh active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2012069215A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103228875B (zh) | 2015-10-14 |
| US20130220250A1 (en) | 2013-08-29 |
| DE102010052551A1 (de) | 2012-05-31 |
| CN103228875A (zh) | 2013-07-31 |
| WO2012069215A1 (de) | 2012-05-31 |
| US8783219B2 (en) | 2014-07-22 |
| EP2643561B1 (de) | 2015-04-15 |
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