WO2012052217A1 - Mechanisch steuerbarer ventiltrieb - Google Patents
Mechanisch steuerbarer ventiltrieb Download PDFInfo
- Publication number
- WO2012052217A1 WO2012052217A1 PCT/EP2011/065048 EP2011065048W WO2012052217A1 WO 2012052217 A1 WO2012052217 A1 WO 2012052217A1 EP 2011065048 W EP2011065048 W EP 2011065048W WO 2012052217 A1 WO2012052217 A1 WO 2012052217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mechanically controllable
- controllable valve
- rocker arm
- valve drive
- pivot lever
- Prior art date
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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
-
- 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
- F01L1/185—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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- 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
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
Definitions
- the invention relates to a mechanically controllable Ventiitrieb with a gas exchange valve, which acts on a pivot lever assembly by means of an end face, wherein the pivot lever assembly is movably mounted in the cylinder head by means of bearing means and wherein the pivot lever assembly comprises an engaging member which is operatively connected via a working cam with a rocker arm Ventilhubversteil excited , Furthermore, the invention relates to a mechanically controllable valve train arrangement,
- Such mechanically controllable valve trains are well known.
- a mechanically controllable valve train is known in which a rocker arm is designed such that it is movable with its one end by means of a roller by a camshaft in a link arrangement and with its other end via a working curve via a pivoting lever acts together so that the gas exchange valve is opened and closed.
- a second roller is arranged in such a valve drive, which cooperates with an adjustable bar such that a valve lift is made possible.
- spring means which bias the rocker arm in the direction of the adjustable bar.
- This Hubverstelian extract also has a rocker arm, which cooperates via a working curve with a pivot lever and this pivot lever with a gas exchange valve.
- the adjustment of the rocker arm and thus the setting of the lifting height takes place here at the opposite end of the working curve of Kipphebeis.
- the Nockenweile attacks on a Roile which is mounted approximately in the middle of the rocker arm.
- valve drives are equipped with a valve clearance, which is intended to ensure a closed valve over a certain driving cycle.
- Newer engines have so-called hydrostatic impulses, which no longer need a valve example, and which ensure that the valve train can adapt to the respective operating and wearing conditions.
- This type of Hydrost Congressei be combined with a ball head on which the Schwenkhebe! is stored, also used in the Ventiitechnischen with a Hubverstellanssen.
- This ensures proper closure of the gas exchange valve, such measures in the life cycle of the internal combustion engine cause the point of application of the working curve of Hubverstellan remedy changed to the attacking organ of the pivot lever. This in turn leads to the fact that the valve lift adjustment associated with certain operating states no longer works precisely, which proves to be disadvantageous, in particular against the background of optimal combustion and the associated low emissions.
- a particularly advantageous embodiment of a mechanically controllable valve drive is created in that the VentiihubverstellISSISSISSISSISS is designed such that the rocker arm is movable with a roller through a camshaft in a link arrangement and mitteis an adjusting member is adjustable, wherein the Schwenkhebe! directed side has a working curve, which is in operative connection with the engaging member, wherein the rocker arm is biased by means of a spring member.
- the rocker arm is L-shaped with a working cam leg and a guide leg and wherein the positioning means are designed as a spring member having at least one spring force component in the direction of effetsschenkeis.
- the spring member engages the working cam leg.
- the bearing means consist of a pivot bearing arranged on a pivot bearing.
- the adjusting means can advantageously be provided between the gas exchange valve and the end face.
- the adjusting means can be designed as a thick graded shims, which allows an extremely precise adjustment of the Ventiistiels. Also, a simple readjustment is guaranteed in certain maintenance intervals. Also, the Einsteilstoff be provided for the valve clearance in the pivot bearing, the adjustment can be made solely by this or in addition to the setting discs used. In order to take account of extreme wear, for example of the valve seat, and also to provide the possibility of readjusting the engagement of the rocker arm with the valve lift adjusting device during maintenance intervals, it may also be advantageous if the adjusting means are provided in the valve lift adjustment device.
- the pivot lever assembly consists of a pivot lever and a rotatably mounted therein roller, wherein the roller is in operative connection with the working curve of the rocker arm. It can be provided as adjusting the Schwenkhebeian nie. In this case, a clearance adjustment can be made via a simple classification of individual pivot lever assemblies. It is also conceivable that the role of Schwenkhebeian ever is provided as adjustment.
- the Einsteiimittei can then be formed by the adjusting member.
- the adjusting means are formed by the working curve of the rocker arm.
- the working curve has different curve areas, such as for full stroke, partial lift, idle and of course for the valve clearance.
- the working curve on two curve areas, which ensure a valve clearance, with a curve range is assigned to a cold operating condition and a curved area a heated state of an internal combustion engine.
- the valve clearance can be temperature-dependent adjustable between the working curve and the attacking member via a rotation of the adjusting.
- the adjusting means are formed by the slide arrangement.
- a particularly advantageous embodiment of a valve thrust arrangement is provided in that the rocker arms of adjacent valve trains have guide rollers which guide the rocker arm in a linkage arrangement and wherein the guide rollers of two adjacent rocker arms are connected to one another via a plug-in axle, wherein a roller is arranged between the guide rollers, on which the camshaft attacks.
- a mechanically controllable Ventiitrieb 2 is shown with a partially shown gas exchange valve 4 of an internal combustion engine not shown in detail.
- the gas exchange valve 4 is shown by way of example for a plurality of identical intake valves of a cylinder of the internal combustion engine.
- On the illustrated valve stem of the gas exchange valve 4 engages in a known manner a pivot lever assembly 6 with an end face 9, so that the gas exchange valve 4 is opened or closed in response to a camshaft 10.
- the pivot lever assembly 6 consists essentially of a pivot lever 8 and a rotatably mounted therein roller 12.
- the pivot lever 8 is also mounted on a pivot bearing 16 via a pivot bearing 16.
- the roller 12 and thus the pivot lever assembly 6 is in known manner in operative connection with a rocker arm 18 and a Ventiihubverstell listening 20.
- the rocker arm 18 is formed substantially L-shaped, the rocker arm 18 a guide leg 24, and a working cam 26 with a pivot lever assembly 8 directed Arbeltskurve 28 has.
- the Ventilhubverstell listening 20 is guided in a known manner by means of a guide roller 30 in a link arrangement 32.
- a valve lift is achieved by the use of an adjusting member 36 via an eccentric member 38 which engages on a further roller 40 of the rocker arm 18.
- wave! ⁇ the adjusting member a certain valve lift height of the gas exchange valve 4 is achieved upon rotation of the camshaft 10.
- a spring member 42 is provided which has both a spring force Fx in the direction of the adjusting member 36 and a spring force component Fy in the direction of the guide leg 24 has.
- the assembly of the valve lift device shown is substantially simplified, since in the initial state, caused by the spring member 42, a contact between the Versteilorgan 36 and the roller 40, between the roller 30 and the gate assembly 32 and between the roller 30 and the camshaft 10 is present.
- the pivot lever assembly 6 To adjust the game can now be raised in the present embodiment, the pivot lever assembly 6 until it reaches the working curve 28 of the working cam leg 26 to the plant. Subsequently, the distance between the valve stem of the gas exchange valve 4 and the end face 9 of the pivot lever assembly 6 is measured.
- a corresponding shim 44 can be selected, the thickness of which, together with the desired clearance corresponds to the distance between the end face 9 and the valve stem of the gas exchange valve 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/879,806 US20130220251A1 (en) | 2010-10-19 | 2011-08-31 | Mechanically controllable valve drive |
ES11749434.4T ES2552067T3 (es) | 2010-10-19 | 2011-08-31 | Accionamiento de válvula controlable mecánicamente |
EP11749434.4A EP2630344B1 (de) | 2010-10-19 | 2011-08-31 | Mechanisch steuerbarer ventiltrieb |
BR112013005219A BR112013005219A2 (pt) | 2010-10-19 | 2011-08-31 | comando de válvula controlável mecanicamente e conjunto de comando de válvulas controlável mecanicamente. |
CN201180050439XA CN103168153A (zh) | 2010-10-19 | 2011-08-31 | 可机械控制的气门机构 |
JP2013534221A JP2013540235A (ja) | 2010-10-19 | 2011-08-31 | 機械的に制御可能な弁駆動装置 |
KR1020137009614A KR20130054439A (ko) | 2010-10-19 | 2011-08-31 | 기계제어식 밸브드라이브 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010048708A DE102010048708A1 (de) | 2010-10-19 | 2010-10-19 | Mechanisch steuerbarer Ventiltrieb |
DE102010048708.2 | 2010-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012052217A1 true WO2012052217A1 (de) | 2012-04-26 |
Family
ID=44532872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/065048 WO2012052217A1 (de) | 2010-10-19 | 2011-08-31 | Mechanisch steuerbarer ventiltrieb |
Country Status (9)
Country | Link |
---|---|
US (1) | US20130220251A1 (de) |
EP (1) | EP2630344B1 (de) |
JP (1) | JP2013540235A (de) |
KR (1) | KR20130054439A (de) |
CN (1) | CN103168153A (de) |
BR (1) | BR112013005219A2 (de) |
DE (1) | DE102010048708A1 (de) |
ES (1) | ES2552067T3 (de) |
WO (1) | WO2012052217A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012109538A1 (de) * | 2012-10-08 | 2014-04-10 | Kolbenschmidt Pierburg Innovations Gmbh | Mechanisch steuerbarer Ventiltrieb für eine Hubkolbenmaschine |
DE102013106646A1 (de) | 2013-06-25 | 2015-01-08 | Pierburg Gmbh | Federanordnung für einen variablen Ventiltrieb einer Verbrennungskraftmaschine |
CN103742222B (zh) * | 2013-12-30 | 2016-03-30 | 长城汽车股份有限公司 | 用于发动机的配气机构及具有其的车辆 |
DE102014100748B4 (de) * | 2014-01-23 | 2017-04-27 | Pierburg Gmbh | Übertragungsanordnung für einen mechanisch steuerbaren Ventiltrieb sowie mechanisch steuerbarer Ventiltrieb |
CN106014521A (zh) * | 2016-07-13 | 2016-10-12 | 江西五十铃发动机有限公司 | 一种自回位凸轮式无气门间隙的发动机摇臂机构 |
CN108180049B (zh) * | 2017-12-27 | 2020-04-03 | 东风汽车集团有限公司 | 双轴多滚轮摇臂式可变气门升程机构 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4903651A (en) * | 1987-10-29 | 1990-02-27 | Honda Giken Kogyo Kabushiki Kaisha | Rocker arm clearance removing device |
DE4326331A1 (de) | 1992-07-15 | 1995-02-09 | Bayerische Motoren Werke Ag | Ventiltrieb einer Brennkraftmaschine |
DE10018063A1 (de) * | 2000-04-12 | 2001-10-25 | Volkswagen Ag | Brennkraftmaschine mit an einem Zylinderkopf gelagerten Kipphebeln |
DE10123186A1 (de) * | 2001-05-12 | 2002-11-14 | Bayerische Motoren Werke Ag | Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine |
DE10140635A1 (de) | 2001-08-13 | 2003-04-24 | Rudolf Flierl | Ventilhubvorrichtung zur unabhängigen variablen Hubverstellung der Gaswechselventile einer Verbrennungskraftmaschine |
JP2005320887A (ja) * | 2004-05-07 | 2005-11-17 | Daihatsu Motor Co Ltd | 内燃機関における動弁機構 |
EP1666702A1 (de) * | 2003-08-25 | 2006-06-07 | Yamaha Hatsudoki Kabushiki Kaisha | Ventiltrieb für verbrennungsmotor |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0638706A1 (de) * | 1993-08-05 | 1995-02-15 | Bayerische Motoren Werke Aktiengesellschaft | Ventiltrieb einer Brennkraftmaschine |
DE50103100D1 (de) * | 2001-05-03 | 2004-09-09 | Sts System Technology Services | Mechanische Regelung der Hubverstellung des Einlassventils eines Verbrennungsmotors |
DE10228022B4 (de) * | 2002-06-20 | 2009-04-23 | Entec Consulting Gmbh | Ventilhubvorrichtung zur Hubverstellung der Gaswechselventile einer Verbrennungskraftmaschine |
DE10314683B4 (de) * | 2003-03-29 | 2009-05-07 | Entec Consulting Gmbh | Variable Ventilhubsteuerung für einen Verbrennungsmotor mit untenliegender Nockenwelle |
DE102004008389A1 (de) * | 2004-02-20 | 2005-09-08 | Bayerische Motoren Werke Ag | Hubvariabler Ventiltrieb für eine Brennkraftmaschine |
DE102004009307A1 (de) * | 2004-02-26 | 2005-09-22 | Bayerische Motoren Werke Ag | Vorrichtung zur Ansteuerung eines Elektromotors, insbesondere in Kraftfahrzeugen |
JP2006152926A (ja) * | 2004-11-30 | 2006-06-15 | Hitachi Ltd | 内燃機関の可変動弁装置 |
ITMI20070443A1 (it) * | 2007-03-05 | 2008-09-06 | Piaggio & C Spa | Sistema per la variazione continua dell'alzata e della fase delle valvole in un motore a combustione interna |
JP4999539B2 (ja) * | 2007-05-14 | 2012-08-15 | Ntn株式会社 | スイングアーム式動弁装置におけるラッシュアジャスタ |
JP4535135B2 (ja) * | 2008-01-17 | 2010-09-01 | トヨタ自動車株式会社 | 始動制御装置 |
-
2010
- 2010-10-19 DE DE102010048708A patent/DE102010048708A1/de not_active Ceased
-
2011
- 2011-08-31 US US13/879,806 patent/US20130220251A1/en not_active Abandoned
- 2011-08-31 ES ES11749434.4T patent/ES2552067T3/es active Active
- 2011-08-31 JP JP2013534221A patent/JP2013540235A/ja active Pending
- 2011-08-31 EP EP11749434.4A patent/EP2630344B1/de not_active Not-in-force
- 2011-08-31 KR KR1020137009614A patent/KR20130054439A/ko not_active Application Discontinuation
- 2011-08-31 CN CN201180050439XA patent/CN103168153A/zh active Pending
- 2011-08-31 WO PCT/EP2011/065048 patent/WO2012052217A1/de active Application Filing
- 2011-08-31 BR BR112013005219A patent/BR112013005219A2/pt not_active IP Right Cessation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4903651A (en) * | 1987-10-29 | 1990-02-27 | Honda Giken Kogyo Kabushiki Kaisha | Rocker arm clearance removing device |
DE4326331A1 (de) | 1992-07-15 | 1995-02-09 | Bayerische Motoren Werke Ag | Ventiltrieb einer Brennkraftmaschine |
DE10018063A1 (de) * | 2000-04-12 | 2001-10-25 | Volkswagen Ag | Brennkraftmaschine mit an einem Zylinderkopf gelagerten Kipphebeln |
DE10123186A1 (de) * | 2001-05-12 | 2002-11-14 | Bayerische Motoren Werke Ag | Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine |
DE10140635A1 (de) | 2001-08-13 | 2003-04-24 | Rudolf Flierl | Ventilhubvorrichtung zur unabhängigen variablen Hubverstellung der Gaswechselventile einer Verbrennungskraftmaschine |
EP1666702A1 (de) * | 2003-08-25 | 2006-06-07 | Yamaha Hatsudoki Kabushiki Kaisha | Ventiltrieb für verbrennungsmotor |
JP2005320887A (ja) * | 2004-05-07 | 2005-11-17 | Daihatsu Motor Co Ltd | 内燃機関における動弁機構 |
Also Published As
Publication number | Publication date |
---|---|
DE102010048708A1 (de) | 2012-04-19 |
ES2552067T3 (es) | 2015-11-25 |
EP2630344A1 (de) | 2013-08-28 |
JP2013540235A (ja) | 2013-10-31 |
BR112013005219A2 (pt) | 2016-04-26 |
EP2630344B1 (de) | 2015-10-14 |
KR20130054439A (ko) | 2013-05-24 |
CN103168153A (zh) | 2013-06-19 |
US20130220251A1 (en) | 2013-08-29 |
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