EP1911940A4 - Direct-action valve lifter for internal combustion engine - Google Patents

Direct-action valve lifter for internal combustion engine

Info

Publication number
EP1911940A4
EP1911940A4 EP05780849A EP05780849A EP1911940A4 EP 1911940 A4 EP1911940 A4 EP 1911940A4 EP 05780849 A EP05780849 A EP 05780849A EP 05780849 A EP05780849 A EP 05780849A EP 1911940 A4 EP1911940 A4 EP 1911940A4
Authority
EP
European Patent Office
Prior art keywords
direct
combustion engine
internal combustion
valve lifter
action 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Withdrawn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
EP05780849A
Other languages
German (de)
French (fr)
Other versions
EP1911940A1 (en
Inventor
Masayasu Nagado
Teruaki Ando
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.)
Nittan Corp
Original Assignee
Nittan Valve 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 Nittan Valve Co Ltd filed Critical Nittan Valve Co Ltd
Publication of EP1911940A1 publication Critical patent/EP1911940A1/en
Publication of EP1911940A4 publication Critical patent/EP1911940A4/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Withdrawn legal-status Critical Current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
    • 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • 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
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • 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
    • 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
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem

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)
EP05780849A 2005-08-01 2005-08-26 Direct-action valve lifter for internal combustion engine Withdrawn EP1911940A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005222462A JP4829562B2 (en) 2005-08-01 2005-08-01 Direct acting valve lifter for internal combustion engine
PCT/JP2005/015520 WO2007015315A1 (en) 2005-08-01 2005-08-26 Direct-action valve lifter for internal combustion engine

Publications (2)

Publication Number Publication Date
EP1911940A1 EP1911940A1 (en) 2008-04-16
EP1911940A4 true EP1911940A4 (en) 2010-07-21

Family

ID=37708598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05780849A Withdrawn EP1911940A4 (en) 2005-08-01 2005-08-26 Direct-action valve lifter for internal combustion engine

Country Status (6)

Country Link
US (1) US20090056659A1 (en)
EP (1) EP1911940A4 (en)
JP (1) JP4829562B2 (en)
KR (1) KR101011427B1 (en)
CN (1) CN101228337A (en)
WO (1) WO2007015315A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100980866B1 (en) * 2007-12-14 2010-09-10 현대자동차주식회사 Variable valve lift apparatus
EP2891774A4 (en) 2012-08-31 2016-07-20 Nittan Valva Direct-action valve lifter for internal combustion engine
USRE47823E1 (en) 2012-08-31 2020-01-21 Nittan Valve Co., Ltd. Direct-acting valve lifter of internal combustion engine
US9657606B2 (en) 2015-02-25 2017-05-23 Nittan Valve Co., Ltd. Direct-acting valve lifter of internal combustion engine
CN104100324B (en) * 2013-04-03 2016-11-09 重庆长安汽车股份有限公司 Rocker-arm two-stage variable air valve lift range mechanism
CN104100325A (en) * 2013-04-10 2014-10-15 重庆长安汽车股份有限公司 Two-stage variable valve lift device
CN108884730B (en) * 2016-02-19 2021-10-12 伊顿智能动力有限公司 Engine valve lifter with anti-rotation plug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08177426A (en) * 1994-10-27 1996-07-09 Unisia Jecs Corp Valve system of internal combustion engine
JP2004204706A (en) * 2002-12-24 2004-07-22 Mazda Motor Corp Cylinder head structure for engine
JP2005061241A (en) * 2003-08-14 2005-03-10 Nissan Motor Co Ltd Valve system for internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3306248B2 (en) * 1995-04-12 2002-07-24 株式会社ユニシアジェックス Valve train for internal combustion engine
JPH09170412A (en) * 1995-12-20 1997-06-30 Unisia Jecs Corp Valve system of internal combustion engine
JPH09177525A (en) * 1995-12-22 1997-07-08 Unisia Jecs Corp Valve system for internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08177426A (en) * 1994-10-27 1996-07-09 Unisia Jecs Corp Valve system of internal combustion engine
JP2004204706A (en) * 2002-12-24 2004-07-22 Mazda Motor Corp Cylinder head structure for engine
JP2005061241A (en) * 2003-08-14 2005-03-10 Nissan Motor Co Ltd Valve system for internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007015315A1 *

Also Published As

Publication number Publication date
JP2007040114A (en) 2007-02-15
US20090056659A1 (en) 2009-03-05
JP4829562B2 (en) 2011-12-07
KR20080033273A (en) 2008-04-16
WO2007015315A1 (en) 2007-02-08
KR101011427B1 (en) 2011-01-28
EP1911940A1 (en) 2008-04-16
CN101228337A (en) 2008-07-23

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Legal Events

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