IT1302701B1 - ROCKER DEVICE FOR CONTEMPORARY CONTROL OF THE LIFT OF THE VALVES AND THE RELATIVE TIMING IN A COMBUSTION ENGINE. - Google Patents

ROCKER DEVICE FOR CONTEMPORARY CONTROL OF THE LIFT OF THE VALVES AND THE RELATIVE TIMING IN A COMBUSTION ENGINE.

Info

Publication number
IT1302701B1
IT1302701B1 IT1998MI002244A ITMI982244A IT1302701B1 IT 1302701 B1 IT1302701 B1 IT 1302701B1 IT 1998MI002244 A IT1998MI002244 A IT 1998MI002244A IT MI982244 A ITMI982244 A IT MI982244A IT 1302701 B1 IT1302701 B1 IT 1302701B1
Authority
IT
Italy
Prior art keywords
valves
lift
combustion engine
relative timing
rocker device
Prior art date
Application number
IT1998MI002244A
Other languages
Italian (it)
Inventor
Majo Cecur
Original Assignee
Eaton Automotive Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eaton Automotive Spa filed Critical Eaton Automotive Spa
Priority to IT1998MI002244A priority Critical patent/IT1302701B1/en
Publication of ITMI982244A0 publication Critical patent/ITMI982244A0/en
Priority to EP99308287A priority patent/EP0995885B1/en
Priority to DE69923139T priority patent/DE69923139T2/en
Priority to JP29850899A priority patent/JP4541471B2/en
Priority to BR9906075-2A priority patent/BR9906075A/en
Publication of ITMI982244A1 publication Critical patent/ITMI982244A1/en
Application granted granted Critical
Publication of IT1302701B1 publication Critical patent/IT1302701B1/en
Priority to US09/841,572 priority patent/US6588387B2/en

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)
IT1998MI002244A 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. IT1302701B1 (en)

Priority Applications (6)

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.
EP99308287A EP0995885B1 (en) 1998-10-20 1999-10-20 Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine
DE69923139T DE69923139T2 (en) 1998-10-20 1999-10-20 Drag lever arrangement for simultaneous valve stroke and angle control in an internal combustion engine
JP29850899A JP4541471B2 (en) 1998-10-20 1999-10-20 Rocker arm device for simultaneous control of combustion engine valve lift and relative timing
BR9906075-2A BR9906075A (en) 1998-10-20 1999-10-20 Valve control system for an internal combustion engine
US09/841,572 US6588387B2 (en) 1998-10-20 2001-04-24 Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine

Applications Claiming Priority (1)

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.

Publications (3)

Publication Number Publication Date
ITMI982244A0 ITMI982244A0 (en) 1998-10-20
ITMI982244A1 ITMI982244A1 (en) 2000-04-20
IT1302701B1 true IT1302701B1 (en) 2000-09-29

Family

ID=11380897

Family Applications (1)

Application Number Title Priority Date Filing Date
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.

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)

* Cited by examiner, † Cited by third party
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
EP1923546B1 (en) * 2005-09-08 2012-06-06 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
US11566544B2 (en) 2018-08-09 2023-01-31 Eaton Intelligent Power Limited Rocker arm assembly with lost motion spring
CN112585337B (en) * 2018-08-09 2023-03-28 伊顿智能动力有限公司 Deactivating rocker arm with two-step latch pin
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
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
US4768467A (en) * 1986-01-23 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve operating system for an automotive engine
JPS62203913A (en) * 1986-02-28 1987-09-08 Fuji Heavy Ind Ltd Tappet valve device for automobile engine
IT1240107B (en) * 1990-02-16 1993-11-27 Ferrari Spa VARIABLE DISTRIBUTION SYSTEM, IN PARTICULAR FOR AN ENDOTHERMAL 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
JPH0626313A (en) * 1992-06-02 1994-02-01 Yoshiteru Ono 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
US5655488A (en) * 1996-07-22 1997-08-12 Eaton Corporation Dual event valve control system

Also Published As

Publication number Publication date
DE69923139D1 (en) 2005-02-17
JP2000130132A (en) 2000-05-09
ITMI982244A1 (en) 2000-04-20
BR9906075A (en) 2000-09-05
DE69923139T2 (en) 2005-12-29
ITMI982244A0 (en) 1998-10-20
EP0995885A2 (en) 2000-04-26
EP0995885B1 (en) 2005-01-12
JP4541471B2 (en) 2010-09-08
EP0995885A3 (en) 2000-07-19

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Legal Events

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0001 Granted