EP1843013A3 - Variable-actuation, electro-hydraulic system and device controlling the valves of internal combustion engines - Google Patents
Variable-actuation, electro-hydraulic system and device controlling the valves of internal combustion engines Download PDFInfo
- Publication number
- EP1843013A3 EP1843013A3 EP07105135A EP07105135A EP1843013A3 EP 1843013 A3 EP1843013 A3 EP 1843013A3 EP 07105135 A EP07105135 A EP 07105135A EP 07105135 A EP07105135 A EP 07105135A EP 1843013 A3 EP1843013 A3 EP 1843013A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- engine valve
- chamber
- state
- cylinder
- communication
- 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- Withdrawn
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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
-
- 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
- F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34446—Fluid accumulators for the feeding circuit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000608A ITMI20060608A1 (it) | 2006-03-30 | 2006-03-30 | Sistemi e dispositivo elettroidraulico di comando delle valvole di motori a combustione interna ad azionamento variabile con unica elettrovalvola a tre vie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1843013A2 EP1843013A2 (en) | 2007-10-10 |
EP1843013A3 true EP1843013A3 (en) | 2009-09-09 |
Family
ID=38438279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07105135A Withdrawn EP1843013A3 (en) | 2006-03-30 | 2007-03-28 | Variable-actuation, electro-hydraulic system and device controlling the valves of internal combustion engines |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1843013A3 (it) |
IT (1) | ITMI20060608A1 (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013207863A1 (de) * | 2013-04-30 | 2014-10-30 | Mahle International Gmbh | Vorrichtung zur Steuerung eines Gaswechselventils einer Brennkraftmaschine |
CN111636942B (zh) * | 2020-04-29 | 2022-01-04 | 潍坊职业学院 | 一种液压驱动可变气门正时机构 |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727595A (en) * | 1969-08-30 | 1973-04-17 | Bosch Gmbh Robert | Control device for hydraulically operated tappet valves of internal combustion engines |
CH536934A (de) * | 1969-08-30 | 1973-05-15 | Bosch Gmbh Robert | Steuerung von Ein- und Auslassventilen bei Brennkraftmaschinen durch Flüssigkeit |
EP0139566A1 (fr) * | 1983-09-23 | 1985-05-02 | Societe Alsacienne De Constructions Mecaniques De Mulhouse | Bloc électro-hydraulique de commande des soupapes pour moteur à combustion interne |
WO1992007174A1 (en) * | 1990-10-16 | 1992-04-30 | Lotus Cars Ltd. | Valve control apparatus |
US5456222A (en) * | 1995-01-06 | 1995-10-10 | Ford Motor Company | Spool valve control of an electrohydraulic camless valvetrain |
EP0736671A2 (en) * | 1995-04-05 | 1996-10-09 | Ford Motor Company Limited | Balancing valve motion in an electrohydraulic camless valvetrain |
US5797360A (en) * | 1996-06-14 | 1998-08-25 | Fev Motorentechnik Gmbh & Co Kg | Method for controlling cylinder valve drives in a piston-type internal combustion engine |
US6067946A (en) * | 1996-12-16 | 2000-05-30 | Cummins Engine Company, Inc. | Dual-pressure hydraulic valve-actuation system |
DE10113722A1 (de) * | 2001-03-21 | 2002-09-26 | Mahle Ventiltrieb Gmbh | Hydraulischer Stellantrieb zum Betätigen eines Gaswechselventils eines Verbrennungsmotors |
US20030111044A1 (en) * | 2001-12-17 | 2003-06-19 | Cotton Clifford E. | Method and apparatus for operating an internal combustion engine exhaust valve for braking |
DE102004040210A1 (de) * | 2004-08-19 | 2006-03-02 | Robert Bosch Gmbh | Hydraulischer Steller für ein Gaswechselventil einer Brennkraftmaschine |
EP1770247A2 (en) * | 2005-09-28 | 2007-04-04 | Dell'orto S.P.A. | Electro-hydraulic variable valve actuator and method to control valves of internal combustion engines |
-
2006
- 2006-03-30 IT IT000608A patent/ITMI20060608A1/it unknown
-
2007
- 2007-03-28 EP EP07105135A patent/EP1843013A3/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3727595A (en) * | 1969-08-30 | 1973-04-17 | Bosch Gmbh Robert | Control device for hydraulically operated tappet valves of internal combustion engines |
CH536934A (de) * | 1969-08-30 | 1973-05-15 | Bosch Gmbh Robert | Steuerung von Ein- und Auslassventilen bei Brennkraftmaschinen durch Flüssigkeit |
EP0139566A1 (fr) * | 1983-09-23 | 1985-05-02 | Societe Alsacienne De Constructions Mecaniques De Mulhouse | Bloc électro-hydraulique de commande des soupapes pour moteur à combustion interne |
WO1992007174A1 (en) * | 1990-10-16 | 1992-04-30 | Lotus Cars Ltd. | Valve control apparatus |
US5456222A (en) * | 1995-01-06 | 1995-10-10 | Ford Motor Company | Spool valve control of an electrohydraulic camless valvetrain |
EP0736671A2 (en) * | 1995-04-05 | 1996-10-09 | Ford Motor Company Limited | Balancing valve motion in an electrohydraulic camless valvetrain |
US5797360A (en) * | 1996-06-14 | 1998-08-25 | Fev Motorentechnik Gmbh & Co Kg | Method for controlling cylinder valve drives in a piston-type internal combustion engine |
US6067946A (en) * | 1996-12-16 | 2000-05-30 | Cummins Engine Company, Inc. | Dual-pressure hydraulic valve-actuation system |
DE10113722A1 (de) * | 2001-03-21 | 2002-09-26 | Mahle Ventiltrieb Gmbh | Hydraulischer Stellantrieb zum Betätigen eines Gaswechselventils eines Verbrennungsmotors |
US20030111044A1 (en) * | 2001-12-17 | 2003-06-19 | Cotton Clifford E. | Method and apparatus for operating an internal combustion engine exhaust valve for braking |
DE102004040210A1 (de) * | 2004-08-19 | 2006-03-02 | Robert Bosch Gmbh | Hydraulischer Steller für ein Gaswechselventil einer Brennkraftmaschine |
EP1770247A2 (en) * | 2005-09-28 | 2007-04-04 | Dell'orto S.P.A. | Electro-hydraulic variable valve actuator and method to control valves of internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
ITMI20060608A1 (it) | 2007-09-30 |
EP1843013A2 (en) | 2007-10-10 |
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