EP0995885A3 - Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine - Google Patents
Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine Download PDFInfo
- Publication number
- EP0995885A3 EP0995885A3 EP99308287A EP99308287A EP0995885A3 EP 0995885 A3 EP0995885 A3 EP 0995885A3 EP 99308287 A EP99308287 A EP 99308287A EP 99308287 A EP99308287 A EP 99308287A EP 0995885 A3 EP0995885 A3 EP 0995885A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- rocker arm
- lift cam
- rocker
- combustion engine
- valve lift
- 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
- 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
- F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
-
- 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
- F01L2305/02—Mounting of rollers
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/033—Hydraulic engines
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)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1998MI002244A IT1302701B1 (en) | 1998-10-20 | 1998-10-20 | ROCKER DEVICE FOR CONTEMPORARY CONTROL OF THE LIFT OF THE VALVES AND THE RELATIVE TIMING IN A COMBUSTION ENGINE. |
ITMI982244 | 1998-10-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0995885A2 EP0995885A2 (en) | 2000-04-26 |
EP0995885A3 true EP0995885A3 (en) | 2000-07-19 |
EP0995885B1 EP0995885B1 (en) | 2005-01-12 |
Family
ID=11380897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99308287A Expired - Lifetime EP0995885B1 (en) | 1998-10-20 | 1999-10-20 | Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0995885B1 (en) |
JP (1) | JP4541471B2 (en) |
BR (1) | BR9906075A (en) |
DE (1) | DE69923139T2 (en) |
IT (1) | IT1302701B1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10060890C2 (en) | 2000-12-07 | 2003-04-03 | Meta Motoren Energietech | Device for switching the operation of a charge exchange valve of an internal combustion engine |
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 |
WO2007029458A1 (en) | 2005-09-08 | 2007-03-15 | Honda Motor Co., Ltd. | Valve drive device for engine |
DE102008008094B3 (en) | 2008-02-08 | 2009-05-14 | Meta Motoren- Und Energie-Technik Gmbh | Valve lever assembly for piston combustion engines for changing valve timing of intake valve, has adjustable valve operating unit for working with cam shaft having two cams, and eccentric opening is provided |
EP3411568B1 (en) * | 2016-02-01 | 2020-10-21 | Eaton Intelligent Power Limited | Variable rocker ratio system for a switchable rocker arm |
DE102016210463A1 (en) * | 2016-06-14 | 2017-12-14 | Thyssenkrupp Ag | Valve control device for an internal combustion engine |
DE102017101792B4 (en) | 2017-01-31 | 2018-11-15 | Schaeffler Technologies AG & Co. KG | Variable valve train of a combustion piston engine |
GB201710964D0 (en) * | 2017-07-07 | 2017-08-23 | Eaton Srl | Actuator |
US11319840B2 (en) * | 2018-08-09 | 2022-05-03 | Eaton Intelligent Power Limited | Deactivating rocker arm having two-stage latch pin |
US11566544B2 (en) | 2018-08-09 | 2023-01-31 | Eaton Intelligent Power Limited | Rocker arm assembly with lost motion spring |
DE102018131601A1 (en) * | 2018-12-10 | 2019-10-31 | Schaeffler Technologies AG & Co. KG | Switchable drag lever for a valve train of an internal combustion engine and variable valve train for an internal combustion engine |
CN116163818B (en) * | 2023-04-24 | 2023-06-27 | 泰州市姜堰伟达机械有限公司 | Rocker arm device of internal combustion engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768467A (en) * | 1986-01-23 | 1988-09-06 | Fuji Jukogyo Kabushiki Kaisha | Valve operating system for an automotive engine |
US4768475A (en) * | 1986-02-28 | 1988-09-06 | Fuji Jukogyo Kabushiki Kaisha | Valve mechanism for an automotive engine |
DE4136143A1 (en) * | 1991-11-02 | 1993-05-06 | Audi Ag, 8070 Ingolstadt, De | Valve control mechanism for IC engine - has combination of two rocker arms which can be positively joined by locking lever |
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 |
US5655488A (en) * | 1996-07-22 | 1997-08-12 | Eaton Corporation | Dual event valve control system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60228717A (en) * | 1984-04-27 | 1985-11-14 | Suzuki Motor Co Ltd | Variable device of valve lift in four-cycle engine |
JPS62170711A (en) * | 1986-01-23 | 1987-07-27 | Fuji Heavy Ind Ltd | Valve moving device for automobile engine |
JPS62170714A (en) * | 1986-01-23 | 1987-07-27 | Fuji Heavy Ind Ltd | Valve moving device for automobile engine |
IT1240107B (en) * | 1990-02-16 | 1993-11-27 | Ferrari Spa | VARIABLE DISTRIBUTION SYSTEM, IN PARTICULAR FOR AN ENDOTHERMAL ENGINE. |
JPH0626313A (en) * | 1992-06-02 | 1994-02-01 | Yoshiteru Ono | Variable valve timing mechanism |
-
1998
- 1998-10-20 IT IT1998MI002244A patent/IT1302701B1/en active IP Right Grant
-
1999
- 1999-10-20 BR BR9906075-2A patent/BR9906075A/en not_active IP Right Cessation
- 1999-10-20 EP EP99308287A patent/EP0995885B1/en not_active Expired - Lifetime
- 1999-10-20 JP JP29850899A patent/JP4541471B2/en not_active Expired - Fee Related
- 1999-10-20 DE DE69923139T patent/DE69923139T2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4768467A (en) * | 1986-01-23 | 1988-09-06 | Fuji Jukogyo Kabushiki Kaisha | Valve operating system for an automotive engine |
US4768475A (en) * | 1986-02-28 | 1988-09-06 | Fuji Jukogyo Kabushiki Kaisha | Valve mechanism for an automotive engine |
DE4136143A1 (en) * | 1991-11-02 | 1993-05-06 | Audi Ag, 8070 Ingolstadt, De | Valve control mechanism for IC engine - has combination of two rocker arms which can be positively joined by locking lever |
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 |
US5655488A (en) * | 1996-07-22 | 1997-08-12 | Eaton Corporation | Dual event valve control system |
Also Published As
Publication number | Publication date |
---|---|
JP2000130132A (en) | 2000-05-09 |
IT1302701B1 (en) | 2000-09-29 |
JP4541471B2 (en) | 2010-09-08 |
EP0995885A2 (en) | 2000-04-26 |
DE69923139D1 (en) | 2005-02-17 |
EP0995885B1 (en) | 2005-01-12 |
BR9906075A (en) | 2000-09-05 |
ITMI982244A0 (en) | 1998-10-20 |
DE69923139T2 (en) | 2005-12-29 |
ITMI982244A1 (en) | 2000-04-20 |
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