EP1666701A4 - Valve gear of internal combustion engine - Google Patents

Valve gear of internal combustion engine

Info

Publication number
EP1666701A4
EP1666701A4 EP04772152A EP04772152A EP1666701A4 EP 1666701 A4 EP1666701 A4 EP 1666701A4 EP 04772152 A EP04772152 A EP 04772152A EP 04772152 A EP04772152 A EP 04772152A EP 1666701 A4 EP1666701 A4 EP 1666701A4
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
valve gear
gear
valve
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Withdrawn
Application number
EP04772152A
Other languages
German (de)
French (fr)
Other versions
EP1666701A1 (en
Inventor
Koichi Hatamura
Hideo Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Publication of EP1666701A1 publication Critical patent/EP1666701A1/en
Publication of EP1666701A4 publication Critical patent/EP1666701A4/en
Withdrawn legal-status Critical Current

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
    • F01L13/0021—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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • 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

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)
EP04772152A 2003-08-25 2004-08-25 Valve gear of internal combustion engine Withdrawn EP1666701A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003208562A JP2005069014A (en) 2003-08-25 2003-08-25 Valve system of internal combustion engine
PCT/JP2004/012191 WO2005019607A1 (en) 2003-08-25 2004-08-25 Valve gear of internal combustion engine

Publications (2)

Publication Number Publication Date
EP1666701A1 EP1666701A1 (en) 2006-06-07
EP1666701A4 true EP1666701A4 (en) 2010-04-07

Family

ID=34208990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04772152A Withdrawn EP1666701A4 (en) 2003-08-25 2004-08-25 Valve gear of internal combustion engine

Country Status (5)

Country Link
US (1) US20060207533A1 (en)
EP (1) EP1666701A4 (en)
JP (1) JP2005069014A (en)
CA (1) CA2537162A1 (en)
WO (1) WO2005019607A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004081351A1 (en) 2003-03-11 2004-09-23 Yamaha Hatsudoki Kabushiki Kaisha Variable valve mechanism for internal combustion engine
JP4248343B2 (en) * 2003-05-01 2009-04-02 ヤマハ発動機株式会社 Engine valve gear
JP4248344B2 (en) 2003-05-01 2009-04-02 ヤマハ発動機株式会社 Engine valve gear
JP4247529B2 (en) 2003-08-22 2009-04-02 ヤマハ発動機株式会社 Valve mechanism of internal combustion engine
JP4237643B2 (en) 2003-08-25 2009-03-11 ヤマハ発動機株式会社 Valve mechanism of internal combustion engine
TW200530491A (en) 2004-01-20 2005-09-16 Honda Motor Co Ltd Valve operating device for internal combustion engine
JP4200975B2 (en) * 2005-03-18 2008-12-24 三菱自動車工業株式会社 Variable valve operating device for internal combustion engine
JP2006329084A (en) 2005-05-26 2006-12-07 Yamaha Motor Co Ltd Valve gear of engine
JP2006329164A (en) 2005-05-30 2006-12-07 Yamaha Motor Co Ltd Multi-cylinder engine
JP2007162597A (en) * 2005-12-15 2007-06-28 Hitachi Ltd Variable valve gear of internal combustion engine
JP2007270740A (en) * 2006-03-31 2007-10-18 Daihatsu Motor Co Ltd Valve lift variable valve gear in internal combustion engine
DE102006018510A1 (en) * 2006-04-21 2007-10-25 Schaeffler Kg Swinging arm for stroke-variable valve gear of internal combustion engine, has stroke area, where maximum width of stroke area is formed larger or equal to maximum width of idle-stroke area and larger than minimum width of idle-stroke area
JP4519104B2 (en) * 2006-06-01 2010-08-04 日立オートモティブシステムズ株式会社 Variable valve operating device for internal combustion engine
JP4726775B2 (en) 2006-12-20 2011-07-20 ヤマハ発動機株式会社 Continuously variable valve gear for engine
US7753017B2 (en) * 2007-12-20 2010-07-13 Gm Global Technology Operations, Inc. Hydraulically lashed end pivot rocker arm
EP2101045B1 (en) * 2008-03-12 2011-12-14 Kawasaki Jukogyo Kabushiki Kaisha Valve operating system
KR100969019B1 (en) * 2008-05-29 2010-07-09 현대자동차주식회사 Continuously variable valve lift system in engines
EP2336508B1 (en) 2009-12-16 2012-07-04 Iveco Motorenforschung AG Mechanical variable valve actuation system for 2-stroke and 4-stroke engine operations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629629A (en) * 1947-02-24 1949-09-23 Austin Motor Co Ltd Improvements in cams for operating valves of internal combustion engines
US6055949A (en) * 1997-12-26 2000-05-02 Nissan Motor Co., Ltd. Variable valve actuator apparatus

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519375B1 (en) * 1981-12-31 1986-07-11 Baguena Michel VARIABLE VALVE FOR FOUR-STROKE ENGINE
DE3519319A1 (en) * 1985-05-30 1986-12-04 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart VARIABLE VALVE CONTROL FOR A PISTON PISTON COMBUSTION ENGINE
JPH0645602Y2 (en) * 1987-01-28 1994-11-24 三菱自動車工業株式会社 Multi-cylinder engine valve mechanism
JP2700692B2 (en) * 1989-06-30 1998-01-21 スズキ株式会社 Valve system for 4-cycle engine
JP2944264B2 (en) * 1991-07-23 1999-08-30 株式会社ユニシアジェックス Valve train for internal combustion engine
WO1993008377A1 (en) * 1991-10-25 1993-04-29 Peter Kuhn Device for actuating the valves in an internal-combustion engine by means of rotating cams
JP3380582B2 (en) * 1993-03-23 2003-02-24 マツダ株式会社 Engine valve timing control device
EP0638706A1 (en) * 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Valve actuating mechanism of an internal combustion engine
JPH07133709A (en) * 1993-09-17 1995-05-23 Mazda Motor Corp Engine valve timing variable equipment
US6135075A (en) * 1999-03-10 2000-10-24 Boertje; Brian H. Variable cam mechanism for an engine
ATE220444T1 (en) * 1999-10-29 2002-07-15 Sts System Technology Services MECHANICAL CONTROL OF THE STROKE ADJUSTMENT OF THE INLET VALVE OF AN INTERNAL COMBUSTION ENGINE
US6422187B2 (en) * 2000-01-26 2002-07-23 Delphi Technologies, Inc. Variable valve mechanism having an eccentric-driven frame
DE10006018B4 (en) * 2000-02-11 2009-09-17 Schaeffler Kg Variable valve drive for load control of a spark-ignited internal combustion engine
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
DE10123186A1 (en) * 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Valve gear device for variable lift adjustment is for gas exchange valve of internal combustion engine and has valve vai intermediary of transmission component effectively connected to roller movable around rotary axis
JP2003148116A (en) * 2001-11-07 2003-05-21 Suzuki Motor Corp Valve system for four cycle engine
JP2003201814A (en) * 2001-12-28 2003-07-18 Suzuki Motor Corp Valve system of 4-cycle engine
EP1515009B1 (en) * 2002-05-17 2013-04-17 Yamaha Hatsudoki Kabushiki Kaisha Engine valve driver
EP1515008B1 (en) * 2002-05-17 2013-07-10 Yamaha Hatsudoki Kabushiki Kaisha Engine valve driver
US6659053B1 (en) * 2002-06-07 2003-12-09 Eaton Corporation Fully variable valve train
WO2004081351A1 (en) * 2003-03-11 2004-09-23 Yamaha Hatsudoki Kabushiki Kaisha Variable valve mechanism for internal combustion engine
JP4248344B2 (en) * 2003-05-01 2009-04-02 ヤマハ発動機株式会社 Engine valve gear
JP4248343B2 (en) * 2003-05-01 2009-04-02 ヤマハ発動機株式会社 Engine valve gear
JP4247529B2 (en) * 2003-08-22 2009-04-02 ヤマハ発動機株式会社 Valve mechanism of internal combustion engine
JP4237643B2 (en) * 2003-08-25 2009-03-11 ヤマハ発動機株式会社 Valve mechanism of internal combustion engine
JP2006329164A (en) * 2005-05-30 2006-12-07 Yamaha Motor Co Ltd Multi-cylinder engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB629629A (en) * 1947-02-24 1949-09-23 Austin Motor Co Ltd Improvements in cams for operating valves of internal combustion engines
US6055949A (en) * 1997-12-26 2000-05-02 Nissan Motor Co., Ltd. Variable valve actuator apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005019607A1 *

Also Published As

Publication number Publication date
JP2005069014A (en) 2005-03-17
US20060207533A1 (en) 2006-09-21
EP1666701A1 (en) 2006-06-07
CA2537162A1 (en) 2005-03-03
WO2005019607A1 (en) 2005-03-03

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