EP1387048A2 - Levier oscillant pour commande de soupape à course variable - Google Patents
Levier oscillant pour commande de soupape à course variable Download PDFInfo
- Publication number
- EP1387048A2 EP1387048A2 EP03015068A EP03015068A EP1387048A2 EP 1387048 A2 EP1387048 A2 EP 1387048A2 EP 03015068 A EP03015068 A EP 03015068A EP 03015068 A EP03015068 A EP 03015068A EP 1387048 A2 EP1387048 A2 EP 1387048A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller element
- roller
- pivot lever
- hand
- bearing
- 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
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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0005—Deactivating valves
-
- 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
-
- 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
- F01L2013/0068—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 with an oscillating cam acting on the valve of the "BMW-Valvetronic" type
-
- 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 pivot lever for a variable-stroke valve drive according to the features in the preamble of claim 1.
- valve drive device for variable stroke adjustment a gas exchange valve of an internal combustion engine described.
- Valve train device is the gas exchange valve with the interposition of a Transmission element with a movable about a rotation axis roller in operative connection with a control path comprising a no-lift curve and a lift curve, in an end region of a stroke for the gas exchange valve of a cam of a camshaft controlled pivot lever is arranged.
- Object of the present invention is to friction reducing measures for a show generic pivot lever.
- roller element into two separate roller elements means that advantageously the first roller element or the second roller element is in operative connection only with either the slide or with the adjusting unit. Production-related tolerances in the production of rolls can be better compensated by this arrangement, whereby the internal friction and thus the wear is reduced.
- the bearing tolerances add up the first roller element and the second roller element, thereby manufacturing technology conditional tolerances can be even better compensated.
- the embodiment according to claim 5 has the best power distribution during operation and the least friction, which in turn increases the life of the internal friction, wear and fuel consumption of the internal combustion engine minimized.
- Fig. 1 shows a variable-stroke valve drive 2, which is shown in a rudimentary manner Cylinder head 1 is arranged.
- the variable stroke valve train 2 consists essentially from a pivot lever 3, with a roller element 4 and a swing fulcrum 4 ', a third roller element 13, and a gate 5 with a slide track 5 ', an intermediate element 7, a gas exchange valve 8, a cam 9, which is arranged on a camshaft 9 'and a spring 10 and an adjusting device 11.
- the pivot lever 3 is supported on the one hand via the roller element.
- the intermediate element 7 is a roller rocker whose role is around a rotation axis 12 is rotatable.
- the axis of rotation 12 is also the center of the Sliding track 5 'in a Nullhub too.
- the intermediate element is supported on the one hand from the axis of rotation 12 on a lash adjuster 14, here a hydraulic Valve lash adjuster, and on the other hand on the gas exchange valve 8 off.
- Fig. 2 shows the side view of a pivot lever 3 for the first and the second Embodiment.
- the pivot lever 3 consists of an approximately box-shaped Housing 3 ', which on one end of the control track 6, with the Leerhubkurve 6 'and the lifting cam 6 "and on the opposite end a first bore 15, which is aligned normal to the control track 6 has.
- a first bolt 16 Radially about the first pin 16 is the roller element 4 arranged.
- a second bore 15 ' Between the roller element 4 and the control track 6 is located a second bore 15 ', in which a second pin 16' parallel to the first Bolt 16 is mounted.
- Radial on the outer circumference is around the bolt 16 'is the third Roller element 13 rotatably mounted.
- This section A-A corresponds the representations in Fig. 3 and Fig. 4 for each embodiment.
- Fig. 3 shows a section through the plane A-A for a first embodiment of the pivot lever 3.
- a roller bearing 17 is arranged. Radial about this bearing 17 is rotatably the roller element 4, mounted within the housing 3 '.
- the Roller element 4 is divided into two first roller elements 4a and a second roller element 4b.
- the roller element 4b extends in the axial direction over the Whole length of the rolling bearing 17, corresponding to an internal dimension, not shown of the housing 3 '.
- Radially on the outer circumference of the first roller element 4b the two second roller elements 4a are arranged rotatably.
- the first two Roller elements 4a form a sliding bearing with the second roller element 4b.
- only a first roller element 4a may be provided be, with this then in axial alignment over about half of the second roller element 4b extends or in the middle of the second roller element 4b is arranged. Also, a roller bearing of the first roller element 4a on the second roller element 4b is possible.
- Fig. 4 shows the section through the pivot lever 3 in the plane A-A for a second Embodiment.
- first roller elements 4a and a second roller element 4b are compared to the first embodiment in axial Direction arranged side by side and each have their own rolling bearing 17 ', 17 ", 17"' opposite the first pin 16.
- the first roller element 4a with the adjusting device 11 in Operative connection
- the second roller element 4b with the slide track 5 'of Setting 5 is in operative connection.
- Centric a section B-B is located, the relative to the section A-A is rotated by 90 °.
- first roller element 4a may be provided.
- first roller member 4a and the second roller member 4b in axial Direction of the first bolt 16 in turn next to each other.
- the rolling bearings 17, 17 ', 17 ", 17"' as a needle bearing and under certain circumstances can also be designed as sliding bearings.
- Fig. 5 shows by way of illustration a relation to FIG. 4 rotated by 90 ° Section through the pivot lever for the second embodiment. It applies the Figure description of Fig. 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10235403 | 2002-08-02 | ||
DE10235403A DE10235403A1 (de) | 2002-08-02 | 2002-08-02 | Schwenkhebel für einen hubvariablen Ventiltrieb |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1387048A2 true EP1387048A2 (fr) | 2004-02-04 |
EP1387048A3 EP1387048A3 (fr) | 2007-07-25 |
EP1387048B1 EP1387048B1 (fr) | 2009-11-25 |
Family
ID=30010568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03015068A Expired - Lifetime EP1387048B1 (fr) | 2002-08-02 | 2003-07-03 | Levier oscillant pour commande de soupape à course variable |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1387048B1 (fr) |
DE (2) | DE10235403A1 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1847691A2 (fr) * | 2006-04-21 | 2007-10-24 | Schaeffler KG | Elément de rouleau pour une pièce de machine mobile par pivotement |
WO2008153191A2 (fr) * | 2007-06-14 | 2008-12-18 | Toyota Jidosha Kabushiki Kaisha | Appareil à soupape variable |
WO2012107121A1 (fr) * | 2011-02-10 | 2012-08-16 | Schaeffler Technologies AG & Co. KG | Levier intermédiaire |
WO2012107119A1 (fr) * | 2011-02-10 | 2012-08-16 | Schaeffler Technologies AG & Co. KG | Levier intermédiaire |
WO2015110189A1 (fr) * | 2014-01-23 | 2015-07-30 | Pierburg Gmbh | Système de transmission destiné à un mécanisme de distribution à commande mécanique et mécanisme de distribution à commande mécanique |
WO2016005071A1 (fr) * | 2014-07-09 | 2016-01-14 | Pierburg Gmbh | Mécanisme de distribution à commande mécanique |
EP3324010A1 (fr) * | 2016-11-18 | 2018-05-23 | Pierburg GmbH | Commande mécanique de soupape |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004008389A1 (de) | 2004-02-20 | 2005-09-08 | Bayerische Motoren Werke Ag | Hubvariabler Ventiltrieb für eine Brennkraftmaschine |
DE102006018510A1 (de) * | 2006-04-21 | 2007-10-25 | Schaeffler Kg | Schwinghebel für einen hubvariablen Ventiltrieb |
DE102015118884A1 (de) * | 2015-11-04 | 2017-05-04 | Pierburg Gmbh | Mechanisch steuerbarer Ventiltrieb |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123186A1 (de) | 2001-05-12 | 2002-11-14 | Bayerische Motoren Werke Ag | Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4223173A1 (de) * | 1992-07-15 | 1994-01-20 | Bayerische Motoren Werke Ag | Ventiltrieb einer Brennkraftmaschine |
DE4322480C2 (de) * | 1993-07-06 | 1996-05-02 | Meta Motoren Energietech | Vorrichtung zur variablen Ventilsteuerung von Brennkraftmaschinen |
EP1022443B1 (fr) * | 1999-01-19 | 2001-08-08 | Ford Global Technologies, Inc. | Dispositif de commande variable pour soupape de moteur a combustion interne |
DE19913742A1 (de) * | 1999-03-26 | 2000-09-28 | Bayerische Motoren Werke Ag | Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine |
DE19920512A1 (de) * | 1999-05-05 | 2000-11-09 | Opel Adam Ag | Vorrichtung zur Betätigung eines Ventiles mit variablem Hub an Brennkraftmaschinen |
EP1096115B1 (fr) * | 1999-10-29 | 2002-07-10 | STS System Technology Services GmbH | Dispositif de régulation mécanique de la levée de soupape de moteur à combustion interne |
DE19960742B4 (de) * | 1999-12-16 | 2006-09-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Variabler Ventiltrieb, vorzugsweise für Verbrennungsmotoren |
DE10016103A1 (de) * | 2000-03-31 | 2001-10-04 | Audi Ag | Variable Ventilsteuerung |
DE50103100D1 (de) * | 2001-05-03 | 2004-09-09 | Sts System Technology Services | Mechanische Regelung der Hubverstellung des Einlassventils eines Verbrennungsmotors |
-
2002
- 2002-08-02 DE DE10235403A patent/DE10235403A1/de not_active Withdrawn
-
2003
- 2003-07-03 DE DE50312150T patent/DE50312150D1/de not_active Expired - Lifetime
- 2003-07-03 EP EP03015068A patent/EP1387048B1/fr not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10123186A1 (de) | 2001-05-12 | 2002-11-14 | Bayerische Motoren Werke Ag | Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1847691A2 (fr) * | 2006-04-21 | 2007-10-24 | Schaeffler KG | Elément de rouleau pour une pièce de machine mobile par pivotement |
EP1847691A3 (fr) * | 2006-04-21 | 2009-04-08 | Schaeffler KG | Elément de rouleau pour une pièce de machine mobile par pivotement |
WO2008153191A2 (fr) * | 2007-06-14 | 2008-12-18 | Toyota Jidosha Kabushiki Kaisha | Appareil à soupape variable |
WO2008153191A3 (fr) * | 2007-06-14 | 2009-02-26 | Toyota Motor Co Ltd | Appareil à soupape variable |
CN101680315B (zh) * | 2007-06-14 | 2012-01-18 | 丰田自动车株式会社 | 可变气门设备 |
US8109245B2 (en) | 2007-06-14 | 2012-02-07 | Toyota Jidosha Kabushiki Kaisha | Variable valve apparatus |
WO2012107121A1 (fr) * | 2011-02-10 | 2012-08-16 | Schaeffler Technologies AG & Co. KG | Levier intermédiaire |
WO2012107119A1 (fr) * | 2011-02-10 | 2012-08-16 | Schaeffler Technologies AG & Co. KG | Levier intermédiaire |
WO2015110189A1 (fr) * | 2014-01-23 | 2015-07-30 | Pierburg Gmbh | Système de transmission destiné à un mécanisme de distribution à commande mécanique et mécanisme de distribution à commande mécanique |
CN105658918A (zh) * | 2014-01-23 | 2016-06-08 | 皮尔伯格有限责任公司 | 用于机械可控式气门机构的传动总成以及机械可控式气门机构 |
CN105658918B (zh) * | 2014-01-23 | 2019-10-01 | 皮尔伯格有限责任公司 | 用于机械可控式气门机构的传动总成以及机械可控式气门机构 |
WO2016005071A1 (fr) * | 2014-07-09 | 2016-01-14 | Pierburg Gmbh | Mécanisme de distribution à commande mécanique |
US10851683B2 (en) | 2014-07-09 | 2020-12-01 | Pierburg Gmbh | Mechanically controllable valve drive |
EP3324010A1 (fr) * | 2016-11-18 | 2018-05-23 | Pierburg GmbH | Commande mécanique de soupape |
Also Published As
Publication number | Publication date |
---|---|
EP1387048B1 (fr) | 2009-11-25 |
DE10235403A1 (de) | 2004-02-12 |
DE50312150D1 (de) | 2010-01-07 |
EP1387048A3 (fr) | 2007-07-25 |
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