EP0761935A3 - Variable valve driving gear, particularly for internal combustion engines - Google Patents
Variable valve driving gear, particularly for internal combustion engines Download PDFInfo
- Publication number
- EP0761935A3 EP0761935A3 EP96110558A EP96110558A EP0761935A3 EP 0761935 A3 EP0761935 A3 EP 0761935A3 EP 96110558 A EP96110558 A EP 96110558A EP 96110558 A EP96110558 A EP 96110558A EP 0761935 A3 EP0761935 A3 EP 0761935A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- internal combustion
- combustion engines
- variable valve
- valve
- driving gear
- 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
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
- F01L13/0063—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
- 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
- F01L1/181—Centre 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Für einen variablen Ventiltrieb, insbesondere für Brennkraftmaschinen, bei dem ein Steuernocken (2) einer Nockenwelle (3) über eine zwischengeschaltete Rolle (4) auf einen schwenk- bzw. kippbeweglichen Ventilhebel (6) zur Betätigung eines Hubventiles (7) einwirkt, wird zur Erzielung einer stufenlosen Steuerzeit- und Hubverstellung des Hubventiles (7) vorgeschlagen, daß die Rolle (4) bei einem Minimalhub über einen verstellbar gesteuerten Verstellhebel (9) im äußeren Endbereich des Ventilhebels (6) positioniert quer zur Nockenerhebung des Steuernockens (2) schwenkbar geführt ist. For a variable valve train, in particular for internal combustion engines, in which a control cam (2) of a camshaft (3) acts via an intermediate roller (4) on a pivotable or tiltable valve lever (6) for actuating a lift valve (7) Achieving a stepless control time and stroke adjustment of the lift valve (7) suggested that the roller (4) pivotably guided at a minimum stroke via an adjustable controlled adjustment lever (9) in the outer end region of the valve lever (6) transversely to the cam elevation of the control cam (2) is.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19532334A DE19532334A1 (en) | 1995-09-01 | 1995-09-01 | Variable valve train, especially for internal combustion engines |
DE19532334 | 1995-09-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0761935A2 EP0761935A2 (en) | 1997-03-12 |
EP0761935A3 true EP0761935A3 (en) | 1998-02-11 |
EP0761935B1 EP0761935B1 (en) | 2002-01-23 |
Family
ID=7771050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96110558A Expired - Lifetime EP0761935B1 (en) | 1995-09-01 | 1996-06-29 | Variable valve driving gear, particularly for internal combustion engines |
Country Status (4)
Country | Link |
---|---|
US (1) | US5899180A (en) |
EP (1) | EP0761935B1 (en) |
DE (2) | DE19532334A1 (en) |
ES (1) | ES2171206T3 (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9703605D0 (en) * | 1997-02-21 | 1997-04-09 | T & N Technology Ltd | Operating mechanisms for valves |
JP3485434B2 (en) * | 1997-04-04 | 2004-01-13 | 株式会社日立ユニシアオートモティブ | Valve train for internal combustion engine |
US5988125A (en) * | 1997-08-07 | 1999-11-23 | Unisia Jecs Corporation | Variable valve actuation apparatus for engine |
JP3893202B2 (en) * | 1997-11-07 | 2007-03-14 | 株式会社日立製作所 | Variable valve operating device for internal combustion engine |
US6041746A (en) * | 1997-12-09 | 2000-03-28 | Nissan Motor Co., Ltd. | Variable valve actuation apparatus |
DE19859564B4 (en) * | 1997-12-26 | 2005-09-08 | Nissan Motor Co., Ltd., Yokohama | Variable valve adjuster |
DE19801964A1 (en) * | 1998-01-21 | 1999-07-22 | Audi Ag | Mechanism to interrupt the force flow between a cam at the camshaft and a valve |
JP3924078B2 (en) * | 1998-05-21 | 2007-06-06 | 株式会社日立製作所 | Variable valve operating device for internal combustion engine |
DE19825307A1 (en) * | 1998-06-05 | 1999-12-09 | Bayerische Motoren Werke Ag | Valve control for an internal combustion engine |
DE19825308A1 (en) * | 1998-06-05 | 1999-12-09 | Bayerische Motoren Werke Ag | Variable valve train for an internal combustion engine |
US6019076A (en) * | 1998-08-05 | 2000-02-01 | General Motors Corporation | Variable valve timing mechanism |
US6135075A (en) * | 1999-03-10 | 2000-10-24 | Boertje; Brian H. | Variable cam mechanism for an engine |
DE19913742A1 (en) * | 1999-03-26 | 2000-09-28 | Bayerische Motoren Werke Ag | Device for stroke adjustment of a gas exchange valve in the cylinder head of an internal combustion engine |
DE59902000D1 (en) * | 1999-10-29 | 2002-08-14 | Sts System Technology Services | Mechanical regulation of the stroke adjustment of the intake valve of an internal combustion engine |
GB2357131A (en) * | 1999-12-09 | 2001-06-13 | Mechadyne Internat Plc | Valve actuating mechanism |
JP2001164911A (en) * | 1999-12-10 | 2001-06-19 | Yamaha Motor Co Ltd | Valve system of four-cycle engine |
DE19960742B4 (en) * | 1999-12-16 | 2006-09-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Variable valve train, preferably for internal combustion engines |
JP3799944B2 (en) | 2000-03-21 | 2006-07-19 | トヨタ自動車株式会社 | Variable valve mechanism and intake air amount control device for internal combustion engine |
US6360705B1 (en) * | 2000-10-19 | 2002-03-26 | General Motors Corporation | Mechanism for variable valve lift and cylinder deactivation |
US6446589B1 (en) * | 2001-01-16 | 2002-09-10 | Chinh T. Nguyen | Cam actuated continuous simultaneously variable valve timing and lifting assembly |
US7104229B2 (en) * | 2001-04-05 | 2006-09-12 | Stephen William Mitchell | Variable valve timing system |
US6539909B2 (en) | 2001-05-03 | 2003-04-01 | International Engine Intellectual Property Company, L.L.C. | Retractable seat valve and method for selective gas flow control in a combustion chamber |
GR20010100295A (en) * | 2001-06-18 | 2003-02-27 | Εμμανουηλ Παττακος | Variable valve gear |
DE10136612A1 (en) * | 2001-07-17 | 2003-02-06 | Herbert Naumann | Variable lift valve controls |
US6491008B1 (en) * | 2001-10-18 | 2002-12-10 | Ford Global Technologies, Inc. | Variable valve timing adjustable roller rocker arm assembly |
US6550435B1 (en) * | 2002-01-17 | 2003-04-22 | Ford Global Technologies, Llc | Variable valve timing adjustable finger follower assembly |
DE10221133A1 (en) * | 2002-05-13 | 2003-11-27 | Thyssen Krupp Automotive Ag | Drive and adjustment system for variable valve controls |
JP4057855B2 (en) | 2002-07-05 | 2008-03-05 | 本田技研工業株式会社 | Valve operating device for internal combustion engine |
US6978751B2 (en) * | 2002-07-18 | 2005-12-27 | Kohler Co. | Cam follower arm for an internal combustion engine |
DE10312958B4 (en) | 2003-03-24 | 2005-03-10 | Thyssen Krupp Automotive Ag | Device for vairably actuating the gas exchange valves of internal combustion engines and method for operating such a device |
DE10312959B4 (en) * | 2003-03-24 | 2006-10-05 | Thyssenkrupp Automotive Ag | Device for the variable actuation of gas exchange valves of internal combustion engines |
DE10312961C5 (en) * | 2003-03-24 | 2009-01-29 | Thyssenkrupp Presta Teccenter Ag | Device for the variable actuation of gas exchange valves of internal combustion engines |
JP4225321B2 (en) * | 2003-12-18 | 2009-02-18 | トヨタ自動車株式会社 | Variable valve mechanism |
KR20090056602A (en) * | 2007-11-30 | 2009-06-03 | 현대자동차주식회사 | Variable valve lift apparatus |
US8033261B1 (en) | 2008-11-03 | 2011-10-11 | Robbins Warren H | Valve actuation system and related methods |
ITBO20090063A1 (en) * | 2009-02-10 | 2010-08-11 | Moto Morini S P A | DEVICE FOR THE CONTROL OF THE LIFT OF A VALVE FOR A MOTOR |
DE102017119348A1 (en) * | 2017-08-24 | 2019-02-28 | Man Truck & Bus Ag | Variable valve train |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2100344A (en) * | 1981-06-08 | 1982-12-22 | Tourtelot Edward Mortimer | Ic engine variable valve timing mechanism |
DE4220816A1 (en) * | 1992-06-25 | 1994-01-05 | Schaeffler Waelzlager Kg | Adjustable valve control for IC engine - has adjustable intermediate member between cam and pivot lever along guide path |
WO1995009298A1 (en) * | 1993-09-30 | 1995-04-06 | Lotus Cars Ltd. | Valve operating mechanism for internal combustion engines |
EP0717174A1 (en) * | 1994-12-12 | 1996-06-19 | Isuzu Motors Limited | Valve operating system for internal combustion engine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE800616C (en) * | 1949-07-21 | 1950-11-23 | Carl F W Borgward | Internal combustion engine, especially for motor vehicles |
US4469056A (en) * | 1983-02-22 | 1984-09-04 | Tourtelot Jr Edward M | Dual follower variable valve timing mechanism |
US5003939A (en) * | 1990-02-26 | 1991-04-02 | King Brian T | Valve duration and lift variator for internal combustion engines |
DE4226163A1 (en) * | 1992-08-07 | 1994-02-10 | Schaeffler Waelzlager Kg | Engine valve shutdown by means of cam roller displacement |
DE4420064A1 (en) * | 1994-06-08 | 1995-12-14 | Bayerische Motoren Werke Ag | Valve train with variable control of the valve opening angle |
-
1995
- 1995-09-01 DE DE19532334A patent/DE19532334A1/en not_active Withdrawn
-
1996
- 1996-06-29 ES ES96110558T patent/ES2171206T3/en not_active Expired - Lifetime
- 1996-06-29 DE DE59608633T patent/DE59608633D1/en not_active Expired - Lifetime
- 1996-06-29 EP EP96110558A patent/EP0761935B1/en not_active Expired - Lifetime
- 1996-08-23 US US08/701,831 patent/US5899180A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2100344A (en) * | 1981-06-08 | 1982-12-22 | Tourtelot Edward Mortimer | Ic engine variable valve timing mechanism |
DE4220816A1 (en) * | 1992-06-25 | 1994-01-05 | Schaeffler Waelzlager Kg | Adjustable valve control for IC engine - has adjustable intermediate member between cam and pivot lever along guide path |
WO1995009298A1 (en) * | 1993-09-30 | 1995-04-06 | Lotus Cars Ltd. | Valve operating mechanism for internal combustion engines |
EP0717174A1 (en) * | 1994-12-12 | 1996-06-19 | Isuzu Motors Limited | Valve operating system for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE59608633D1 (en) | 2002-03-14 |
EP0761935A2 (en) | 1997-03-12 |
DE19532334A1 (en) | 1997-03-06 |
US5899180A (en) | 1999-05-04 |
ES2171206T3 (en) | 2002-09-01 |
EP0761935B1 (en) | 2002-01-23 |
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