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WO2008129954A1 - ラッシュアジャスタ - Google Patents

ラッシュアジャスタ Download PDF

Info

Publication number
WO2008129954A1
WO2008129954A1 PCT/JP2008/057092 JP2008057092W WO2008129954A1 WO 2008129954 A1 WO2008129954 A1 WO 2008129954A1 JP 2008057092 W JP2008057092 W JP 2008057092W WO 2008129954 A1 WO2008129954 A1 WO 2008129954A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw rod
housing
flank
internal thread
pressure
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.)
Ceased
Application number
PCT/JP2008/057092
Other languages
English (en)
French (fr)
Inventor
Katsuhisa Yamaguchi
Hiroshi Bunko
Eiji Maeno
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing 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 NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Priority to US12/595,856 priority Critical patent/US8136493B2/en
Priority to DE112008000769T priority patent/DE112008000769T5/de
Publication of WO2008129954A1 publication Critical patent/WO2008129954A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • F01L2305/00—Valve arrangements comprising 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/02—Lubrication
    • 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
    • F01L2820/032—Electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

　圧力側フランク間の油膜を排除する効果が高く、製造コストが低いラッシュアジャスタを提供する。 　上端が開放した筒状のハウジング１４と、そのハウジング１４の内周に形成された雌ねじ２１にねじ係合する雄ねじ２０を外周に有するスクリュロッド１５と、そのスクリュロッド１５をハウジング１４から突出する方向に付勢するスプリング１７とを有し、雌ねじ２１と雄ねじ２０は、スクリュロッド１５をハウジング１４内に押し込む方向の力が作用したときに圧力を受ける圧力側フランク２２のフランク角が、遊び側フランク２３のフランク角よりも大きくなるように形成され、スクリュロッド１５のハウジング１４からの突出端１８で動弁装置のアーム６の揺動支点を支持するようにしたラッシュアジャスタ１において、雌ねじ２１に対してねじ山の方向が交差するタップで、雌ねじ２１の圧力側フランク２２に油膜排除溝２４を形成する。
PCT/JP2008/057092 2007-04-18 2008-04-10 ラッシュアジャスタ Ceased WO2008129954A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/595,856 US8136493B2 (en) 2007-04-18 2008-04-10 Lash adjuster
DE112008000769T DE112008000769T5 (de) 2007-04-18 2008-04-10 Spielausgleichsvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-109499 2007-04-18
JP2007109499A JP4999526B2 (ja) 2007-04-18 2007-04-18 ラッシュアジャスタ

Publications (1)

Publication Number Publication Date
WO2008129954A1 true WO2008129954A1 (ja) 2008-10-30

Family

ID=39875482

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/057092 Ceased WO2008129954A1 (ja) 2007-04-18 2008-04-10 ラッシュアジャスタ

Country Status (4)

Country Link
US (1) US8136493B2 (ja)
JP (1) JP4999526B2 (ja)
DE (1) DE112008000769T5 (ja)
WO (1) WO2008129954A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112009000693T5 (de) * 2008-03-24 2011-03-24 NTN Corporation, Osaka-shi Spielausgleichsvorrichtung
CN103703220B (zh) * 2012-03-16 2017-07-28 日锻汽门株式会社 机械式间隙调整器
US9141667B2 (en) 2013-01-31 2015-09-22 International Business Machines Corporation Efficient join with one or more large dimension tables
CN104895632A (zh) * 2015-04-16 2015-09-09 奇瑞汽车股份有限公司 一种气门间隙可机械调节的滚子摇臂气门机构
JP6650881B2 (ja) * 2016-06-17 2020-02-19 日鍛バルブ株式会社 機械式ラッシュアジャスタ
CN106968739B (zh) * 2017-05-11 2022-08-05 杭州新坐标科技股份有限公司 一种轻量化高强度的柴油机滚轮摇臂

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03501758A (ja) * 1987-12-19 1991-04-18 ジーケーエヌ・テクノロジー・リミテツド 自動クリヤランス調整器
JP2000130114A (ja) * 1998-10-23 2000-05-09 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2004019463A (ja) * 2002-06-12 2004-01-22 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2005127189A (ja) * 2003-10-22 2005-05-19 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2005248912A (ja) * 2004-03-08 2005-09-15 Ntn Corp バルブクリアランス自動調整装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1145933C (zh) 1998-11-13 2004-04-14 Tdk株式会社 写/读头支撑机构以及写/读系统
JP4155836B2 (ja) * 2003-02-10 2008-09-24 日産自動車株式会社 動弁装置におけるラッシュアジャスタ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03501758A (ja) * 1987-12-19 1991-04-18 ジーケーエヌ・テクノロジー・リミテツド 自動クリヤランス調整器
JP2000130114A (ja) * 1998-10-23 2000-05-09 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2004019463A (ja) * 2002-06-12 2004-01-22 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2005127189A (ja) * 2003-10-22 2005-05-19 Ntn Corp 動弁装置におけるラッシュアジャスタ
JP2005248912A (ja) * 2004-03-08 2005-09-15 Ntn Corp バルブクリアランス自動調整装置

Also Published As

Publication number Publication date
US8136493B2 (en) 2012-03-20
JP4999526B2 (ja) 2012-08-15
US20100071648A1 (en) 2010-03-25
JP2008267221A (ja) 2008-11-06
DE112008000769T5 (de) 2010-04-22

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