EP1143118A2 - Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine - Google Patents
Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1143118A2 EP1143118A2 EP01106205A EP01106205A EP1143118A2 EP 1143118 A2 EP1143118 A2 EP 1143118A2 EP 01106205 A EP01106205 A EP 01106205A EP 01106205 A EP01106205 A EP 01106205A EP 1143118 A2 EP1143118 A2 EP 1143118A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- lever
- control shaft
- cylinder head
- shaft
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F01L13/0015—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
-
- 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
Definitions
- the invention relates to a preamble of claim 1 Device for stroke adjustment of a gas exchange valve in the cylinder head Internal combustion engine, one interacting with the gas exchange valve
- the transmission element is in line contact with an idle stroke curve and one Stroke curve control path on one lever, the other Lever end in line contact is with a cam on one in the cylinder head controlled rotatable and fixable control shaft, one in the cylinder head for Control shaft camshaft arranged in parallel via a cam on a cam track acts on the swivel lever to actuate the gas exchange valve.
- Such a device is known for example from DE 42 23 172 C1.
- the to achieve a variable stroke - zero stroke to full stroke - from Cam of a camshaft pivoted swivel lever in its free Lever end adjacent to the line contact with a stroke adjustment Cam is guided over a slot on a bolt fixed to the housing.
- this slotted hole guide many swivel levers on a common guide pin or common guide rod a multi-cylinder internal combustion engine increased friction with the danger a tilt of the swivel lever (s).
- a common Guide rod for the swivel levers of similar gas exchange valves a cylinder row in an internal combustion engine requires an increased space.
- the invention is based, for a device for stroke adjustment the task a gas exchange valve a space-saving construction while avoiding the Point out the danger of the tilting lever tilting due to friction.
- the invention advantageously takes up less installation space Device for stroke adjustment of a gas exchange valve achieved, with a friction Canting of the swivel lever guided according to the invention by means of a relatively simple design of the support surfaces on the shaft sections of the Tax wave is achieved.
- the background of the spherically designed support surfaces is that the backdrops of the swivel lever are completed in one operation and thus the same Contour and same angle errors.
- the ones that interact with the scenery Support surfaces of the shaft sections are in two successive Work steps completed, with a cylindrical design of the shaft sections or the support surfaces are different diameters and different or can even result in opposite conicity. Because of these different Contours of the support surfaces can be in cooperation with the associated Backdrops occur that the swivel lever is skewed occurs or that there is a one-sided carrying one of the scenes of the pivot lever results or that eventually even edge beams occur.
- the support surfaces have a Show crowning of approx. 10 - 15 ⁇ m.
- the swivel levers advantageously carry only in Area of the support surface of the backdrop and not on its edges. This allows the otherwise wear does not occur because the point of contact of the two Gliding partners quickly by smoothing the surfaces to a touch ellipse expands long until the occurring Hertzian pressures are safely borne can.
- a device 1 for stroke adjustment of a section only shown Gas exchange valve 2 in a cylinder head 3, only indicated, one not shown Internal combustion engine comprises one which interacts with the gas exchange valve 2 Transmission element 4, which is in line contact via a roller 5 with a control path 6 comprising an idle stroke curve 6 ′ and a stroke curve 6 ′′ a swivel lever 7.
- the swivel lever 7 projects from the other end 8 of the lever a rolling element 8 'in line contact with one of the stroke settings of the gas exchange valve 2 serving cam 9 on a controlled rotating in the cylinder head 3 and fixable control shaft 10, which has a parallel arranged in the cylinder head 3, Not shown camshaft is associated with a cam at 11 on a Roller 12 acts on the pivot lever 7 for actuating the stroke of the gas exchange valve 2.
- pivotable arrangement of the pivot lever 7 is this on the one hand during a cam-controlled and against one only in sections Return spring 13 caused pivoting movement over the Line end of the rolling element 8 'on the lever end with the cam plate 9 and Furthermore, with support surfaces 14 on shaft sections 15 of the control shaft 10 on both sides the cam 9 on the other hand interacting slidably Swivel lever scenes 16 performed.
- the support surfaces 14 advantageously have a crown of approximately 10-15 ⁇ m.
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)
Abstract
Description
- Figur 1
- eine erfindungsgemäße Vorrichtung zur Hubverstellung eines Gaswechselventils in perspektivischer Ansicht,
- Figur 2
- einen Schwenkhebel nach Figur 1 in perspektivischer Darstellung.
Claims (3)
- Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine,dadurch gekennzeichnet,wobei ein mit dem Gaswechselventil (2) zusammenwirkendes Übertragungselement (4) in Linienberührung steht mit einer eine Leerhubkurve (6') und eine Hubkurve (6") umfassenden Steuerbahn (6) an einem Schwenkhebel (7), deram anderen Hebelende (8) in Linienberührung (bei 8') steht mit einer Kurvenscheibe (9) auf einer im Zylinderkopf (3) gesteuert dreh- und fixierbaren Steuerwelle (10), wobeieine im Zylinderkopf (3) zur Steuerwelle (10) parallel angeordnete Nockenwelle über einen Nocken auf eine Kurvenbahn (Rolle 12) am Schwenkhebel (7) zur Hubbetätigung des Gaswechselventils (2) einwirkt,dass der Schwenkhebel (7) einerseits während einer nockengesteuerten und gegen eine Rückstellfeder (13) bewirkten Schwenkbewegung über die hebelendseitige Linienberührung (bei 8') mit der Kurvenscheibe (9) undferner über mit Stützflächen (14) an Wellenabschnitten (15) der Steuerwelle (10) beiderseits der Kurvenscheibe (9) andererseits gleitbeweglich zusammenwirkenden Schwenkhebel-Kulissen (16) geführt ist, wobeidie mit den Schwenkhebel-Kulissen (16) zusammenwirkenden Stützflächen (14) der Wellenabschnitte (15) der Steuerwelle (10) ballig ausgebildet sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Stützflächen (14) eine Balligkeit von ca. 10 - 15 µm aufweisen.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die balligen Stützflächen (14) jeweils von der benachbarten Kurvenscheibe (9) ausgehend jeweils über einen wesentlichen Teil des Wellenabschnittes (15) erstrecken.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10017441A DE10017441A1 (de) | 2000-04-07 | 2000-04-07 | vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine |
| DE10017441 | 2000-04-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1143118A2 true EP1143118A2 (de) | 2001-10-10 |
| EP1143118A3 EP1143118A3 (de) | 2002-11-13 |
| EP1143118B1 EP1143118B1 (de) | 2003-08-13 |
Family
ID=7638002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01106205A Expired - Lifetime EP1143118B1 (de) | 2000-04-07 | 2001-03-14 | Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1143118B1 (de) |
| DE (2) | DE10017441A1 (de) |
| ES (1) | ES2204773T3 (de) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387049A1 (de) * | 2002-08-02 | 2004-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Schwenkhebel für einen hubvariablen Ventiltrieb |
| EP1387050A1 (de) * | 2002-08-02 | 2004-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Zylinderkopf für eine Brennkraftmaschine mit einem hubvariablen Ventiltrieb |
| WO2004057160A1 (de) * | 2002-12-21 | 2004-07-08 | Ina-Schaeffler Kg | Zwischenhebel für einen variablen ventiltrieb einer brennkraftmaschine |
| EP1496211A1 (de) * | 2003-07-08 | 2005-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Schwenkhebel für einen hubvariablen Ventiltrieb |
| DE102006018511A1 (de) * | 2006-04-21 | 2007-10-25 | Schaeffler Kg | Schwinghebel für einen hubvariablen Ventiltrieb |
| EP1862649A1 (de) * | 2006-04-21 | 2007-12-05 | Schaeffler KG | Schwinghebel für einen hubvariablen Ventiltrieb |
| EP1619360A4 (de) * | 2003-05-01 | 2008-09-17 | Yamaha Motor Co Ltd | Motorventiltrieb |
| EP1619361A4 (de) * | 2003-05-01 | 2008-11-26 | Yamaha Motor Co Ltd | Ventilbewegungsvorrichtung für motor |
| EP1760278A3 (de) * | 2005-08-30 | 2010-03-10 | Bayerische Motoren Werke Aktiengesellschaft | Hubvariabler Ventiltrieb für eine Brennkraftmaschine |
| CN101550853B (zh) * | 2009-05-08 | 2011-04-06 | 上海汽车集团股份有限公司 | 发动机气门连续可变驱动机构 |
| WO2012150052A1 (de) * | 2011-05-04 | 2012-11-08 | Schaeffler Technologies AG & Co. KG | Zwischenhebel |
| GB2491939A (en) * | 2011-06-15 | 2012-12-19 | Schaeffler Technologies Ag | Intermediate Lever with Stiffening Yoke |
| WO2015110189A1 (de) * | 2014-01-23 | 2015-07-30 | Pierburg Gmbh | Übertragungsanordnung für einen mechanisch steuerbaren ventiltrieb sowie mechanisch steuerbarer ventiltrieb |
| CN107956529A (zh) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | 可变气门传动装置的中间杠杆 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10322250B4 (de) * | 2003-05-13 | 2008-01-17 | Federal-Mogul Wiesbaden Gmbh & Co. Kg | System mit Hilfsnockenwelle und mindestens zwei Lagern und Verfahren zur Herstellung eines Systems mit Hilfsnockenwelle und mindestens zwei Lagern |
| DE102007033821B4 (de) * | 2007-07-18 | 2013-10-31 | Hydraulik-Ring Gmbh | Arbeitskurve eines variablen Ventiltriebs |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223172C1 (en) | 1992-07-15 | 1993-08-19 | Bayerische Motoren Werke Ag, 8000 Muenchen, De | Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft |
| DE4326331A1 (de) | 1992-07-15 | 1995-02-09 | Bayerische Motoren Werke Ag | Ventiltrieb einer Brennkraftmaschine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0638706A1 (de) * | 1993-08-05 | 1995-02-15 | Bayerische Motoren Werke Aktiengesellschaft | Ventiltrieb einer Brennkraftmaschine |
| DE19708484B4 (de) * | 1997-03-03 | 2006-07-13 | Bayerische Motoren Werke Ag | Vorrichtung zur Änderung des Ventilhubverlaufes eines Hubventils, insbesondere eines Gaswechselventils von Brennkraftmaschinen |
-
2000
- 2000-04-07 DE DE10017441A patent/DE10017441A1/de not_active Withdrawn
-
2001
- 2001-03-14 DE DE50100476T patent/DE50100476D1/de not_active Expired - Lifetime
- 2001-03-14 ES ES01106205T patent/ES2204773T3/es not_active Expired - Lifetime
- 2001-03-14 EP EP01106205A patent/EP1143118B1/de not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223172C1 (en) | 1992-07-15 | 1993-08-19 | Bayerische Motoren Werke Ag, 8000 Muenchen, De | Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft |
| DE4326331A1 (de) | 1992-07-15 | 1995-02-09 | Bayerische Motoren Werke Ag | Ventiltrieb einer Brennkraftmaschine |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1387049A1 (de) * | 2002-08-02 | 2004-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Schwenkhebel für einen hubvariablen Ventiltrieb |
| EP1387050A1 (de) * | 2002-08-02 | 2004-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Zylinderkopf für eine Brennkraftmaschine mit einem hubvariablen Ventiltrieb |
| WO2004057160A1 (de) * | 2002-12-21 | 2004-07-08 | Ina-Schaeffler Kg | Zwischenhebel für einen variablen ventiltrieb einer brennkraftmaschine |
| US7055478B2 (en) | 2002-12-21 | 2006-06-06 | Ina-Schaeffler Kg | Intermediate lever for a variable valve train of an internal combustion engine |
| EP1619360A4 (de) * | 2003-05-01 | 2008-09-17 | Yamaha Motor Co Ltd | Motorventiltrieb |
| EP1619361A4 (de) * | 2003-05-01 | 2008-11-26 | Yamaha Motor Co Ltd | Ventilbewegungsvorrichtung für motor |
| EP1496211A1 (de) * | 2003-07-08 | 2005-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Schwenkhebel für einen hubvariablen Ventiltrieb |
| EP1760278A3 (de) * | 2005-08-30 | 2010-03-10 | Bayerische Motoren Werke Aktiengesellschaft | Hubvariabler Ventiltrieb für eine Brennkraftmaschine |
| DE102006018511A1 (de) * | 2006-04-21 | 2007-10-25 | Schaeffler Kg | Schwinghebel für einen hubvariablen Ventiltrieb |
| EP1862649A1 (de) * | 2006-04-21 | 2007-12-05 | Schaeffler KG | Schwinghebel für einen hubvariablen Ventiltrieb |
| CN101550853B (zh) * | 2009-05-08 | 2011-04-06 | 上海汽车集团股份有限公司 | 发动机气门连续可变驱动机构 |
| WO2012150052A1 (de) * | 2011-05-04 | 2012-11-08 | Schaeffler Technologies AG & Co. KG | Zwischenhebel |
| CN103502583A (zh) * | 2011-05-04 | 2014-01-08 | 谢夫勒科技股份两合公司 | 中间杠杆 |
| CN103502583B (zh) * | 2011-05-04 | 2016-08-17 | 舍弗勒技术股份两合公司 | 中间杠杆 |
| GB2491939A (en) * | 2011-06-15 | 2012-12-19 | Schaeffler Technologies Ag | Intermediate Lever with Stiffening Yoke |
| WO2015110189A1 (de) * | 2014-01-23 | 2015-07-30 | Pierburg Gmbh | Übertragungsanordnung für einen mechanisch steuerbaren ventiltrieb sowie mechanisch steuerbarer ventiltrieb |
| 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 |
| JP2017503949A (ja) * | 2014-01-23 | 2017-02-02 | ピアーブルグ ゲゼルシャフト ミット ベシュレンクテル ハフツングPIERBURG GmbH | 機械的に制御可能な弁列の伝動機構及び機械的に制御可能な弁列 |
| 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 |
| CN107956529A (zh) * | 2016-10-18 | 2018-04-24 | 舍弗勒技术股份两合公司 | 可变气门传动装置的中间杠杆 |
| CN107956529B (zh) * | 2016-10-18 | 2021-08-24 | 舍弗勒技术股份两合公司 | 可变气门传动装置的中间杠杆 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2204773T3 (es) | 2004-05-01 |
| EP1143118B1 (de) | 2003-08-13 |
| DE50100476D1 (de) | 2003-09-18 |
| EP1143118A3 (de) | 2002-11-13 |
| DE10017441A1 (de) | 2001-10-11 |
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