EP2475849B1 - Baueinheit für einen ventiltrieb einer brennrkaftmaschine - Google Patents
Baueinheit für einen ventiltrieb einer brennrkaftmaschine Download PDFInfo
- Publication number
- EP2475849B1 EP2475849B1 EP10739891.9A EP10739891A EP2475849B1 EP 2475849 B1 EP2475849 B1 EP 2475849B1 EP 10739891 A EP10739891 A EP 10739891A EP 2475849 B1 EP2475849 B1 EP 2475849B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure piston
- bracket
- housing
- assembly according
- drag lever
- 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.)
- Not-in-force
Links
Images
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
- F01L1/2405—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
- 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- 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
- F01L2001/187—Clips, e.g. for retaining rocker arm on pivot
-
- 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 structural unit for a valve train of an internal combustion engine, with a hydraulic support element and a drag lever connected thereto via a clamp, which sits at one end via a dome in its underside on a crowned head of a pressure piston of the support, which pressure piston via its outer jacket extends in a bore of a pot-like housing of the support member, which clamp the calotte flanked with retaining strips along whose inner sides run in a guide zone on the outer surface of the pressure piston, wherein the housing has a passage for hydraulic fluid, which hydraulic fluid via a channel between the housing and the pressure piston to at least one passage in the pressure piston to a reservoir in this is conductive.
- the state of the art is based on the documents DE 196 17 523 C2 (Clamp made of longitudinal metal strip), DE 102 49 560 A1 (Clip made of transverse metal band) as well US 6,543,402 B2 (wire clip ).
- the pressure piston of the hydraulic support element of the respective structural unit runs freely rotatably in its housing.
- the forces introduced can lead to component-destructive voltage peaks.
- the elements may need to be made larger or it may be necessary to reduce the maximum speed to be traveled.
- the object of the invention is therefore to provide a component of the type mentioned, in which the disadvantages are eliminated.
- this object is achieved in that the guide zone is formed on the pressure piston at the same time as a rotation for this, wherein the pressure piston is defined rotationally mounted relative to the rocker arm.
- the flax / depressions may be embossed, for example.
- the pressure piston of the support When mounting the unit, therefore, the pressure piston of the support must be “directed” mounted / clipped with its guiding zone behind the retaining strips of the clip /, so that the corresponding passage is located in the side of almost tension-free area.
- the passage through installation must assume a geodetically high positioning.
- the housing preferably remains rotatable relative to the pressure piston, but can also be rotationally fixed relative thereto.
- the Endan As a parenthesis, for example, is intended to a component made of sheet metal, the Endan assemblies either longitudinally or transversely.
- the clip can also consist of wire with their retaining strips. It is important in this context, undisturbed by the clamp, free Verschwenkbewegige the finger lever on the head of the support.
- Simple measures of a supply of the hydraulic fluid to the reservoir in the pressure piston are the subject of another subclaim. Accordingly, starting from at least one passage in the housing, preferably intended to a Ringnutabgriff in the region of a separation surface between the pressure piston and the housing.
- the at least one passage and the at least one passage are preferably shown as bores, with windows or the like also being suitable.
- Drawn is a structural unit 1 for a valve train of an internal combustion engine. This is formed from a hydraulic support element 2 and a drag lever 4 connected thereto via a bracket 3. The latter is seated at one end 5 via a dome 6 located in its underside 7 on a crowned head 8 of a pressure piston 9 of the support element 2. The pressure piston 9 extends over its outer casing 10 in a bore 11 of a cup-shaped housing 12 of the support element 2. At the other end 16, the drag lever 4 at the bottom 7 a system 32 for a shaft of a gas exchange valve.
- the housing 12 has a passage 17 (bore) for hydraulic fluid, which is via a channel 18 (Ringnutabgriff) between the housing 12 and the plunger 9 to the passage 19 (bore) in the pressure piston 9 and from there to a reservoir 20 in this conductive ,
- the aforementioned bracket 3 flanks the cap 6 with two retaining strips 13 along.
- Inner sides 14 run in a guide zone 15 on the outer jacket 10 of the pressure piston 9.
- the guide zone 15 consists of two transverse to the head transverse flax 21 on the outer jacket 10 of the pressure piston 9.
- the flax 21 have two axially opposite heels 30.
- the passage 19 is thus "forcibly" in the neutral, virtually stress-free region of the pressure piston 9. A risk of breakage after continuous stress during operation is eliminated. Possibly. can be used thin-walled than previously executed components.
- the bracket 3 extends longitudinally with its retaining strips 13 on the underside 7 of the finger lever 4.
- a final extension 23 of the bracket 3 is bent around an end face 24 of the finger lever 4 at one end 5.
- Another end extension 25 extends around a transverse bar 26 of a recess 27 of a transverse strut 28 of the cross-section here U-shaped drag lever 4. Within the recess 27, a cam roller 31 is received, wherein a Gleitabgriff is conceivable and provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009040608A DE102009040608A1 (de) | 2009-09-08 | 2009-09-08 | Baueinheit für einen Ventiltrieb einer Brennkraftmaschine |
PCT/EP2010/061012 WO2011029667A1 (de) | 2009-09-08 | 2010-07-29 | Baueinheit für einen ventiltrieb einer brennrkaftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2475849A1 EP2475849A1 (de) | 2012-07-18 |
EP2475849B1 true EP2475849B1 (de) | 2013-10-16 |
Family
ID=42710555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10739891.9A Not-in-force EP2475849B1 (de) | 2009-09-08 | 2010-07-29 | Baueinheit für einen ventiltrieb einer brennrkaftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US8689754B2 (zh) |
EP (1) | EP2475849B1 (zh) |
CN (1) | CN102482954B (zh) |
DE (1) | DE102009040608A1 (zh) |
WO (1) | WO2011029667A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012208238A1 (de) * | 2012-05-16 | 2013-11-21 | Schaeffler Technologies AG & Co. KG | Ventiltriebsbetätigungseinrichtung für eine Brennkraftmaschine |
DE102014208005A1 (de) | 2014-04-29 | 2015-10-29 | Schaeffler Technologies AG & Co. KG | Baueinheit eines Ventiltriebs einer Brennkraftmaschine |
DE102019113959A1 (de) * | 2019-05-24 | 2020-11-26 | Schaeffler Technologies AG & Co. KG | In einer Aufnahme eines Zylinderkopfes einer Brennkraftmaschine sitzendes, druckölanschlussfreies, hydraulischen Abstützelement |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2350520A1 (de) | 1973-10-09 | 1975-04-10 | Daimler Benz Ag | Vorrichtung zum einstellen und halten des ventilspiels bei brennkraftmaschinen, insbesondere bei kraftfahrzeug-brennkraftmaschinen |
DE19617523C2 (de) | 1996-05-02 | 2001-11-08 | Schaeffler Waelzlager Ohg | Sicherung für Betätigungshebel von Ventilsteuerungen für Brennkraftmaschinen |
US6047675A (en) * | 1998-11-10 | 2000-04-11 | General Motors Corporation | Retainer clip and valve actuator subassembly |
US6543402B2 (en) | 2000-04-12 | 2003-04-08 | Delphi Technologies, Inc. | Load biasing retainer clip and valve actuator subassembly |
DE10249560A1 (de) | 2002-10-24 | 2004-05-06 | Ina-Schaeffler Kg | Schlepphebel eines Ventiltriebs einer Brennkraftmaschine |
JP2004263608A (ja) | 2003-02-28 | 2004-09-24 | Mitsubishi Motors Corp | 内燃機関の動弁装置 |
US20050183686A1 (en) | 2004-02-25 | 2005-08-25 | Hiroki Fujii | Hydraulic lash adjuster |
DE102004041231A1 (de) | 2004-08-26 | 2006-03-30 | Ina-Schaeffler Kg | Verbindungselement zur verliersicheren Halterung eines hebelartigen Nockenfolgers |
DE102005010750A1 (de) | 2005-03-09 | 2006-09-14 | Schaeffler Kg | Baueinheit eines Ventiltriebs einer Brennkraftmaschine |
DE102005036918A1 (de) * | 2005-08-05 | 2007-02-08 | Schaeffler Kg | Verbindungselement zur verliersicheren Halterung eines hebelartigen Nockenfolgers |
DE102005040694A1 (de) * | 2005-08-27 | 2007-03-01 | Schaeffler Kg | Ventiltrieb mit mechanischer Ventilspieleinstellung und Verfahren zu dessen Montage |
JP5137627B2 (ja) * | 2008-03-07 | 2013-02-06 | 株式会社オティックス | ロッカアームユニット及びロッカアームユニットの組立方法 |
KR20110000582A (ko) * | 2008-06-18 | 2011-01-03 | 코요 베어링즈 유에스에이, 엘엘씨 | 커플링 장치 |
-
2009
- 2009-09-08 DE DE102009040608A patent/DE102009040608A1/de not_active Withdrawn
-
2010
- 2010-07-29 WO PCT/EP2010/061012 patent/WO2011029667A1/de active Application Filing
- 2010-07-29 EP EP10739891.9A patent/EP2475849B1/de not_active Not-in-force
- 2010-07-29 CN CN201080039999.0A patent/CN102482954B/zh not_active Expired - Fee Related
- 2010-07-29 US US13/394,895 patent/US8689754B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20120167847A1 (en) | 2012-07-05 |
DE102009040608A1 (de) | 2011-03-10 |
CN102482954B (zh) | 2014-10-29 |
US8689754B2 (en) | 2014-04-08 |
WO2011029667A1 (de) | 2011-03-17 |
EP2475849A1 (de) | 2012-07-18 |
CN102482954A (zh) | 2012-05-30 |
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