DE102010009399A1 - Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels - Google Patents
Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels Download PDFInfo
- Publication number
- DE102010009399A1 DE102010009399A1 DE102010009399A DE102010009399A DE102010009399A1 DE 102010009399 A1 DE102010009399 A1 DE 102010009399A1 DE 102010009399 A DE102010009399 A DE 102010009399A DE 102010009399 A DE102010009399 A DE 102010009399A DE 102010009399 A1 DE102010009399 A1 DE 102010009399A1
- Authority
- DE
- Germany
- Prior art keywords
- pivot lever
- spring
- section
- ground
- 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.)
- Withdrawn
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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
- F01L1/185—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
- 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
- F01L13/0021—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 rocker arm ratio
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft einen Schwenkhebel für einen hubvariablen Gaswechselventiltrieb einer Brennkraftmaschine, mit einem Hebelgehäuse, das mit zwei Seitenwänden und einem die Seitenwände verbindenden Boden aus einer Blechplatine umgeformt ist und aufweist:
- • einen bodenfernen Endabschnitt, an dem eine Stützfläche zur Abstützung des Schwenkhebels an einer ortsfest in der Brennkraftmaschine angeordneten Kulissenbahn verläuft,
- • einen Mittelabschnitt, an dem eine Anlauffläche für einen den Schwenkhebel entgegen der Kraft einer Feder betätigenden Nocken verläuft,
- • und einen bodennahen Endabschnitt mit einer Auflagefläche für die Feder und einer Übertragungsfläche, die zur variablen Übertragung des Nockenhubs auf einen das Gaswechselventil betätigenden Ventilöffner dient und Teil einer sich längs in Schwenkrichtung des Schwenkhebels erstreckenden Stirnfläche des Bodens ist.
- A bottom-distal end section, on which a support surface for supporting the pivoting lever runs on a guide track arranged fixedly in the internal combustion engine,
- A middle section on which a contact surface for a cam actuating the pivoting lever against the force of a spring,
- • and a bottom end portion having a support surface for the spring and a transfer surface, which is used for variable transmission of the cam lift on a gas exchange valve-actuating valve opener and is part of a longitudinally extending in the pivoting direction of the pivot lever end face of the bottom.
Hintergrund der ErfindungBackground of the invention
Ein derartiger, als verstellbares Übertragungselement eines hubvariablen Gaswechselventiltriebs ausgebildeter Schwenkhebel geht aus der als gattungsbildend betrachteten
Der verbleibende Anteil des Nockenhubs wird durch den Leerhubbereich neutralisiert, wobei zur Abstützung der in Schwenkrichtung auftretenden Massenwirkung des Schwenkhebels eine von der Befederung des Gaswechselventils unabhängige Feder erforderlich ist. Dabei handelt es sich um eine Drehschenkel-Formfeder, deren hebelseitiger Schenkel an einer Auflagefläche abgestützt ist, die als abgewinkelt verlaufende Verlängerung der Stirnfläche des Bodens ausgebildet ist.The remaining portion of the cam lift is neutralized by the Leerhubbereich, wherein an independent of the feathering of the gas exchange valve spring is required to support the occurring in the pivoting direction mass action of the pivot lever. It is a rotary leg-shaped spring, the lever-side leg is supported on a support surface which is formed as an angled extending extension of the end face of the bottom.
Auch die
Aufgabe der ErfindungObject of the invention
Aufgabe der Erfindung ist es, einen Schwenkhebel der eingangs genannten Art mit einer verbesserten Hebelkinematik bezüglich der Auflagefläche für die Feder anzugeben.The object of the invention is to provide a pivot lever of the type mentioned with an improved lever kinematics with respect to the support surface for the spring.
Zusammenfassung der ErfindungSummary of the invention
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Auflagefläche durch einen Abschnitt der Blechplatine gebildet ist, welcher Platinenabschnitt von einer der Seitenwände und/oder vom Boden ausgeht und auf die der Stirnfläche abgewandte Seite des Bodens so umgeformt ist, dass die Auflagefläche innerhalb der Längserstreckung der Übertragungsfläche verläuft.According to the invention, this object is achieved in that the bearing surface is formed by a portion of the sheet metal blank, which board portion emanates from one of the side walls and / or from the bottom and on the side facing away from the end face of the bottom is formed so that the support surface within the longitudinal extent of Transfer surface runs.
Anders als beim zitierten Stand der Technik ist also die Auflagefläche für die Feder nicht als abgewinkelte Verlängerung der Stirnfläche des Bodens ausgebildet, sondern verläuft auf dem seitlich von einer der Seitenwände und/oder seitlich vom Boden ausgehenden und umgeformten Platinenabschnitt. Während es bei bekannten Schwenkhebeln lediglich möglich ist, die Stirnfläche und die davon ausgehende Auflagefläche hintereinander anzuordnen, erlaubt die erfindungsgemäße Ausgestaltung eine Positionierung der Auflagefläche, die weitgehend frei wählbar zwischen den Enden der Übertragungsfläche, d. h. zwischen dem Beginn des Leerhubbereichs und dem Ende des Hubbereichs der Übertragungsfläche angeordnet werden kann. Je nach Applikation des Gaswechselventiltriebs kann dieser konstruktive Freiheitsgrad die kinematischen Verhältnisse am Schwenkhebel bezüglich der relativen Positionierung von Auflagefläche und Stirnfläche/Übertragungsfläche zueinander begünstigen.Unlike the cited prior art, therefore, the support surface for the spring is not formed as an angled extension of the end face of the bottom, but runs on the side of one of the side walls and / or laterally from the bottom outgoing and deformed board section. While it is only possible with known pivoting levers to arrange the end face and the support surface emanating therefrom one behind the other, the embodiment according to the invention permits a positioning of the support surface which is largely freely selectable between the ends of the transfer surface, d. H. between the beginning of the Leerhubbereichs and the end of the stroke range of the transfer surface can be arranged. Depending on the application of the gas exchange valve drive, this structural degree of freedom may favor the kinematic conditions on the pivot lever with respect to the relative positioning of the support surface and the end surface / transfer surface to one another.
Alternativ kann es dennoch auch vorgesehen sein, den seitlich von einer der Seitenwände und/oder seitlich vom Boden ausgehenden Platinenabschnitt so umzuformen, dass die Auflagefläche für die Feder außerhalb der Längserstreckung der Übertragungsfläche liegt.Alternatively, however, it may also be provided to reshape the board section which projects laterally from one of the side walls and / or laterally from the floor in such a way that the support surface for the spring lies outside the longitudinal extent of the transfer surface.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den Zeichnungen, in denen Ausführungsbeispiele erfindungsgemäßer Schwenkhebel jeweils in perspektivischer Seitenansicht dargestellt sind. Sofern nicht anders erwähnt, sind dabei gleiche oder funktionsgleiche Merkmale oder Bauteile mit gleichen Bezugszahlen versehen. Es zeigen:Further features of the invention will become apparent from the following description and from the drawings, in which embodiments of the invention pivot lever are each shown in a perspective side view. Unless otherwise stated, the same or functionally identical features or components are provided with the same reference numbers. Show it:
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Die Erfindung sei ausgehend von
Die Übertragungsfläche
Aus
Erfindungsgemäße Schwenkhebel
Wie der bekannte Schwenkhebel
Der aus der Seitenwand
Der in
Der in
Bei den Schwenkhebeln
Der in
Die seitlich vom Boden
Der Schwenkhebel
Der Schwenkhebel
Der Schwenkhebel
Der Schwenkhebel
Der in
Bei dem in
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- GaswechselventiltriebGas exchange valve train
- 22
- GaswechselventilGas exchange valve
- 33
- Schwenkhebelpivoting lever
- 44
- Kulissenbahnlink path
- 55
- Ventilöffner/SchlepphebelValve opener / drag lever
- 66
- Abstützelementsupporting
- 77
- Nockencam
- 88th
- Federfeather
- 99
- Steuerbahncontrol track
- 1010
- Hebelgehäuselever housing
- 1111
- SeitenwandSide wall
- 1212
- Bodenground
- 1313
- bodenferner Endabschnittfloor-distant end section
- 1414
- Rollenpaket/StützflächeRoll package / supporting surface
- 1515
- Mittelabschnittmidsection
- 1616
- Rolle/AnlaufflächeRole / approach surface
- 1717
- bodennaher Endabschnittnear the bottom end section
- 1818
- Auflageflächebearing surface
- 1919
- Übertragungsflächetransfer surface
- 2020
- Stirnflächeface
- 21 21
- Platinenabschnittplatinum section
- 2222
- Vorsprunghead Start
- 2323
- Vorsprunghead Start
- 2424
- Verschweißungwelding
- 2525
- Stützwandretaining wall
- 2626
- Schlitzslot
- 2727
- Vertiefungdeepening
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 10235402 A1 [0002] DE 10235402 A1 [0002]
- DE 10260557 A1 [0004] DE 10260557 A1 [0004]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010009399A DE102010009399A1 (en) | 2010-02-26 | 2010-02-26 | Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010009399A DE102010009399A1 (en) | 2010-02-26 | 2010-02-26 | Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010009399A1 true DE102010009399A1 (en) | 2011-09-01 |
Family
ID=44501902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010009399A Withdrawn DE102010009399A1 (en) | 2010-02-26 | 2010-02-26 | Operating lever for stroke-variable gas exchange valve gear of internal-combustion engine, has lever housing, which is formed with two side panels and base, which is connected with side panels |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010009399A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2491939A (en) * | 2011-06-15 | 2012-12-19 | Schaeffler Technologies Ag | Intermediate Lever with Stiffening Yoke |
WO2014086346A1 (en) * | 2012-12-06 | 2014-06-12 | Schaeffler Technologies AG & Co. KG | Intermediate lever |
DE102013106646A1 (en) * | 2013-06-25 | 2015-01-08 | Pierburg Gmbh | Spring arrangement for a variable valve train of an internal combustion engine |
WO2016005071A1 (en) * | 2014-07-09 | 2016-01-14 | Pierburg Gmbh | Mechanically controllable valve drive |
DE102015118884A1 (en) | 2015-11-04 | 2017-05-04 | Pierburg Gmbh | Mechanically controllable valve train |
DE102016220397A1 (en) * | 2016-10-18 | 2017-08-10 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
DE102016220399A1 (en) * | 2016-10-18 | 2017-09-07 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
DE102016223087A1 (en) | 2016-11-23 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
CN107956528A (en) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | The intermediate lever of variable stigmatic opening transmission device |
CN107956529A (en) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | The intermediate lever of variable stigmatic opening transmission device |
DE102016223086A1 (en) | 2016-11-23 | 2018-05-24 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10235402A1 (en) | 2002-08-02 | 2004-02-12 | Bayerische Motoren Werke Ag | Swivel lever for a variable stroke valve train |
DE10260557A1 (en) | 2002-12-21 | 2004-07-01 | Ina-Schaeffler Kg | Intermediate lever for a variable valve train of an internal combustion engine |
-
2010
- 2010-02-26 DE DE102010009399A patent/DE102010009399A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10235402A1 (en) | 2002-08-02 | 2004-02-12 | Bayerische Motoren Werke Ag | Swivel lever for a variable stroke valve train |
DE10260557A1 (en) | 2002-12-21 | 2004-07-01 | Ina-Schaeffler Kg | Intermediate lever for a variable valve train of an internal combustion engine |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2491939A (en) * | 2011-06-15 | 2012-12-19 | Schaeffler Technologies Ag | Intermediate Lever with Stiffening Yoke |
WO2014086346A1 (en) * | 2012-12-06 | 2014-06-12 | Schaeffler Technologies AG & Co. KG | Intermediate lever |
CN104854317A (en) * | 2012-12-06 | 2015-08-19 | 舍弗勒技术股份两合公司 | Intermediate lever |
DE102013106646A1 (en) * | 2013-06-25 | 2015-01-08 | Pierburg Gmbh | Spring arrangement for a variable valve train of an internal combustion engine |
US9784142B2 (en) | 2013-06-25 | 2017-10-10 | Pierburg Gmbh | Spring arrangement for a variable valve drive of an internal combustion engine |
CN106489020B (en) * | 2014-07-09 | 2019-10-01 | 皮尔伯格有限责任公司 | Can Mechanical course valve actuating gear |
WO2016005071A1 (en) * | 2014-07-09 | 2016-01-14 | Pierburg Gmbh | Mechanically controllable valve drive |
DE102014109573A1 (en) * | 2014-07-09 | 2016-01-14 | Pierburg Gmbh | Mechanically controllable valve train |
CN106489020A (en) * | 2014-07-09 | 2017-03-08 | 皮尔伯格有限责任公司 | Can Mechanical course valve actuating gear |
US10851683B2 (en) | 2014-07-09 | 2020-12-01 | Pierburg Gmbh | Mechanically controllable valve drive |
DE102015118884A1 (en) | 2015-11-04 | 2017-05-04 | Pierburg Gmbh | Mechanically controllable valve train |
EP3165724A1 (en) | 2015-11-04 | 2017-05-10 | Pierburg GmbH | Mechanisch steuerbarer ventiltrieb |
DE102016220399A1 (en) * | 2016-10-18 | 2017-09-07 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
CN107956528A (en) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | The intermediate lever of variable stigmatic opening transmission device |
CN107956527A (en) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | The intermediate push rod of variable valve driving apparatus |
CN107956529A (en) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | The intermediate lever of variable stigmatic opening transmission device |
DE102016220397A1 (en) * | 2016-10-18 | 2017-08-10 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
CN107956529B (en) * | 2016-10-18 | 2021-08-24 | 舍弗勒技术股份两合公司 | Intermediate lever of variable valve gear |
CN107956527B (en) * | 2016-10-18 | 2022-02-25 | 舍弗勒技术股份两合公司 | Intermediate push rod of variable valve driving device |
DE102016223086A1 (en) | 2016-11-23 | 2018-05-24 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
DE102016223087A1 (en) | 2016-11-23 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Intermediate lever of a variable valve train |
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