WO2001057367A3 - Automatic valve clearance adjuster - Google Patents

Automatic valve clearance adjuster Download PDF

Info

Publication number
WO2001057367A3
WO2001057367A3 PCT/GB2001/000410 GB0100410W WO0157367A3 WO 2001057367 A3 WO2001057367 A3 WO 2001057367A3 GB 0100410 W GB0100410 W GB 0100410W WO 0157367 A3 WO0157367 A3 WO 0157367A3
Authority
WO
WIPO (PCT)
Prior art keywords
housing
screw
thread
screw member
axial
Prior art date
Application number
PCT/GB2001/000410
Other languages
French (fr)
Other versions
WO2001057367A2 (en
Inventor
Peter John Gill
Original Assignee
Peter John Gill
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
Priority claimed from GB0003300A external-priority patent/GB0003300D0/en
Priority claimed from GB0026081A external-priority patent/GB2368370B/en
Application filed by Peter John Gill filed Critical Peter John Gill
Priority to CA002399059A priority Critical patent/CA2399059A1/en
Priority to EP01902531A priority patent/EP1252418A2/en
Priority to MXPA02007401A priority patent/MXPA02007401A/en
Priority to AU2001230386A priority patent/AU2001230386A1/en
Priority to BR0108072-5A priority patent/BR0108072A/en
Priority to JP2001555986A priority patent/JP2003521624A/en
Publication of WO2001057367A2 publication Critical patent/WO2001057367A2/en
Publication of WO2001057367A3 publication Critical patent/WO2001057367A3/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
    • F01L1/20—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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution

Abstract

An automatic valve clearance adjuster comprising an internally screw-threaded housing (1); an externally screw-threaded screw member (3) extending within the housing; the screw thread (4) of the screw member (3) having an external form which is complementary to the thread form of the internal thread (2) of the housing and fits therein with a predetermined axial clearance, the thread being trapezoidal in form, symmetrical in axial cross-section and exhibiting equal frictional resistance against movement in both axial directions; wherein the flank angles, helix angle and number of starts of the screw thread are selected to ensure that the screw member will rotate and advance axially out of the housing solely under the influence of an axial force on its end within the housing; and the emerging end (7) of the screw member is adapted to work in conjunction with an adjacent component to receive therefrom a frictional resistance to rotation.
PCT/GB2001/000410 2000-02-02 2001-01-31 Automatic valve clearance adjuster WO2001057367A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002399059A CA2399059A1 (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster
EP01902531A EP1252418A2 (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster
MXPA02007401A MXPA02007401A (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster.
AU2001230386A AU2001230386A1 (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster
BR0108072-5A BR0108072A (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster, combination, valve operating mechanism, and internal combustion engine. -
JP2001555986A JP2003521624A (en) 2000-02-02 2001-01-31 Automatic valve clearance adjustment device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0003300.1 2000-02-02
GB0003300A GB0003300D0 (en) 2000-02-02 2000-02-02 Automatic valve clearance adjuster
GB0026081.0 2000-10-25
GB0026081A GB2368370B (en) 2000-10-25 2000-10-25 Automatic valve clearance adjuster

Publications (2)

Publication Number Publication Date
WO2001057367A2 WO2001057367A2 (en) 2001-08-09
WO2001057367A3 true WO2001057367A3 (en) 2002-03-14

Family

ID=26243642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/000410 WO2001057367A2 (en) 2000-02-02 2001-01-31 Automatic valve clearance adjuster

Country Status (10)

Country Link
US (1) US20030075131A1 (en)
EP (1) EP1252418A2 (en)
JP (1) JP2003521624A (en)
KR (1) KR20030041853A (en)
CN (1) CN1422359A (en)
AU (1) AU2001230386A1 (en)
BR (1) BR0108072A (en)
CA (1) CA2399059A1 (en)
MX (1) MXPA02007401A (en)
WO (1) WO2001057367A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4155836B2 (en) 2003-02-10 2008-09-24 日産自動車株式会社 Rush adjuster in valve gear
JP2004346821A (en) * 2003-05-22 2004-12-09 Ntn Corp Arm type valve gear
DE102005054115A1 (en) * 2005-11-12 2007-05-24 Schaeffler Kg Method for variable valve control of an 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
JP2008267224A (en) * 2007-04-18 2008-11-06 Ntn Corp Lash adjuster
JP4999539B2 (en) * 2007-05-14 2012-08-15 Ｎｔｎ株式会社 Rush adjuster in swing arm type valve gear
DE112008003314T5 (en) * 2007-12-07 2010-10-21 NTN Corporation, Osaka-shi Lash adjuster
WO2009072481A1 (en) * 2007-12-07 2009-06-11 Ntn Corporation Lash adjuster
JP2009197791A (en) * 2008-01-22 2009-09-03 Ntn Corp Lash adjuster
JP2009174488A (en) * 2008-01-28 2009-08-06 Ntn Corp Lash adjuster
JP2009203975A (en) * 2008-01-28 2009-09-10 Ntn Corp Lash adjuster
JP2009243465A (en) * 2008-03-10 2009-10-22 Ntn Corp Lash adjuster
DE112009000693T5 (en) * 2008-03-24 2011-03-24 NTN Corporation, Osaka-shi Lash adjuster
JP2010007659A (en) * 2008-05-30 2010-01-14 Ntn Corp Lash adjuster
JP2010019156A (en) * 2008-07-10 2010-01-28 Ntn Corp Lash adjuster
JP2011127533A (en) * 2009-12-18 2011-06-30 Ntn Corp Arm type valve gear
DE102010026860A1 (en) * 2010-07-12 2012-01-12 Schaeffler Technologies Gmbh & Co. Kg Mechanical valve clearance compensation element with two-part adjusting bolt
KR101895984B1 (en) * 2012-03-16 2018-09-06 니탄 밸브 가부시키가이샤 Mechanical lash adjuster
JP5943854B2 (en) * 2013-02-15 2016-07-05 株式会社オティックス Rush adjuster
CN104895632A (en) * 2015-04-16 2015-09-09 奇瑞汽车股份有限公司 Roller rocking arm air valve mechanism with mechanically adjustable air valve gap
WO2017216946A1 (en) 2016-06-17 2017-12-21 日鍛バルブ株式会社 Mechanical lash adjuster
US10132206B1 (en) * 2017-05-19 2018-11-20 Caterpillar Inc. Common rocker arm for hydraulic lash adjuster and non-hydraulic lash adjuster

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552786A (en) * 1977-09-26 1979-09-19 Girling Ltd Clearance adjusters
WO1989005898A1 (en) * 1987-12-19 1989-06-29 Gkn Technology Limited Automatic clearance adjuster
US6032630A (en) * 1997-11-17 2000-03-07 Ntn Corporation Valve lifter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US571067A (en) * 1896-11-10 Axle-nut lock
US3118322A (en) * 1964-01-21 Figure
US2308858A (en) * 1940-03-04 1943-01-19 Thompson Prod Inc Hydromechanical clearance regulator
US2872961A (en) * 1954-06-30 1959-02-10 Elastic Stop Nut Corp Fastening device with means for sealing against both a threaded companion fastener and a worksurface
US3024775A (en) * 1960-04-29 1962-03-13 Wuest Clemens Valve tappet
US3794092A (en) * 1970-11-23 1974-02-26 Textron Inc Locking fastener
GB2033472B (en) 1978-08-17 1982-11-17 Gkn Fasteners Ltd Automatically adjusting valve clearance
ATE9173T1 (en) 1980-01-12 1984-09-15 Gkn Technology Limited ADJUSTABLE VALVE TAPPET WITH SCREW.
EP0213138A1 (en) * 1984-06-27 1987-03-11 Gkn Technology Limited Automatic clearance adjuster
CH665152A5 (en) * 1985-01-10 1988-04-29 Urs Kellner METHOD FOR PRODUCING A CONICAL EXTERNAL THREAD.
US4776229A (en) * 1986-09-19 1988-10-11 D. E. A. Digital Electronic Automation S.P.A. Device for controlling the rectilinear translation of a movable member
JPS63268904A (en) * 1987-04-24 1988-11-07 Fuji Heavy Ind Ltd Adjusting method of valve clearance in valve system
DE3808125A1 (en) * 1988-03-11 1989-11-23 Man Nutzfahrzeuge Ag THREADED INSERT WITH A SMALL EXTERNAL DIAMETER FOR SCREWS WITH KEYSTONE THREAD
GB8905592D0 (en) 1989-03-10 1989-04-19 Gkn Technology Ltd Automatic length adjuster
GB8905591D0 (en) 1989-03-10 1989-04-19 Gkn Technology Ltd Automatic length adjuster
US5078562A (en) * 1991-05-13 1992-01-07 Abbott-Interfast Corporation Self-locking threaded fastening arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552786A (en) * 1977-09-26 1979-09-19 Girling Ltd Clearance adjusters
WO1989005898A1 (en) * 1987-12-19 1989-06-29 Gkn Technology Limited Automatic clearance adjuster
US6032630A (en) * 1997-11-17 2000-03-07 Ntn Corporation Valve lifter

Also Published As

Publication number Publication date
US20030075131A1 (en) 2003-04-24
EP1252418A2 (en) 2002-10-30
CN1422359A (en) 2003-06-04
KR20030041853A (en) 2003-05-27
WO2001057367A2 (en) 2001-08-09
BR0108072A (en) 2004-01-06
MXPA02007401A (en) 2004-09-10
CA2399059A1 (en) 2001-08-09
AU2001230386A1 (en) 2001-08-14
JP2003521624A (en) 2003-07-15

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