GB1357080A - Hydraulic backlash adjusters for overhead cam shaft engines - Google Patents

Hydraulic backlash adjusters for overhead cam shaft engines

Info

Publication number
GB1357080A
GB1357080A GB5799372A GB5799372A GB1357080A GB 1357080 A GB1357080 A GB 1357080A GB 5799372 A GB5799372 A GB 5799372A GB 5799372 A GB5799372 A GB 5799372A GB 1357080 A GB1357080 A GB 1357080A
Authority
GB
United Kingdom
Prior art keywords
seat
cavity
valve
plunger
oil
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.)
Expired
Application number
GB5799372A
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.)
Johnson Products Inc
Original Assignee
Johnson Products Inc
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 Johnson Products Inc filed Critical Johnson Products Inc
Publication of GB1357080A publication Critical patent/GB1357080A/en
Expired 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
    • F01L1/20—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
    • 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
    • F01L2001/187—Clips, e.g. for retaining rocker arm on pivot

Landscapes

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

Abstract

1357080 IC engine valve gear JOHNSON PRODUCTS Inc 15 Dec 1972 [24 Feb 1972] 57993/72 Heading F1B [Also in Division F2] An hydraulic automatic back-lash adjuster pillar 16 providing zero lash for an overhead cam-shaft I.C. engine valve operating mechanism of the type in which a rocker arm 8 has one end 14 pivotally mounted on a plunger 20 extending from the adjuster pillar 16, the other end engaging a valve stem 2, and a portion of its upper surface between its ends engaging a cam 10, comprises a hollow body 18 containing the reciprocable plunger 20 which includes a ball valve 50 and seat 48 interposed between a cavity 24 and outlet passage 47 therein. Engine lubricating oil enters the cavity 24 via ports 36 and 38 in the side walls of the body 18 and plunger 20 respectively, the oil passing through the bottom opening 32 of the plunger 20 and via a valve plate 28 into a compression chamber 26. The ball valve 50 is arranged to remain in an open condition off the seat when air is present in the cavity 24 and to close on to the seat 48 when oil flows in the cavity 24 and approaches the seat 48. As shown, the ball 50 is freely supported closely below the seat by a spring retainer 56 whilst in Fig.4 (not shown), the retainer is in the form of a hollow pin (58) through which the oil is fed to the cavity 24. In Fig.7 (not shown) no retainer is required, the ball (50') being hollow and/or of plastics and having a specific gravity less than that of the lubricating oil and greater than that of air so that it floats on the oil. A flow passage 60 Fig.1 and Fig.5 (not shown) is positioned adjacent the seat 48 so that, in use, when the ball valve 50 is closed oil may flow past the ball valve 50 and, via passage 47, lubricate the pivot head of the plunger 20 and cam follower socket 14. Alternatively, the flow passage may be effected around the edges of an eliptically shaped apertured disc (62) Fig. 6 (not shown) which is warped slightly when assembled into the cavity 24 to form the valve seat.
GB5799372A 1972-02-24 1972-12-15 Hydraulic backlash adjusters for overhead cam shaft engines Expired GB1357080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00229157A US3805753A (en) 1972-02-24 1972-02-24 Hydraulic lash adjuster for overhead cam engines

Publications (1)

Publication Number Publication Date
GB1357080A true GB1357080A (en) 1974-06-19

Family

ID=22860047

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5799372A Expired GB1357080A (en) 1972-02-24 1972-12-15 Hydraulic backlash adjusters for overhead cam shaft engines

Country Status (9)

Country Link
US (1) US3805753A (en)
JP (1) JPS4912224A (en)
AU (1) AU463616B2 (en)
BR (1) BR7300866D0 (en)
CA (1) CA976442A (en)
DE (1) DE2300467A1 (en)
FR (1) FR2173526A5 (en)
GB (1) GB1357080A (en)
IT (1) IT972668B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132302A (en) * 1982-12-20 1984-07-04 Gen Motors Corp Hydraulic lash adjuster
GB2153432A (en) * 1984-01-13 1985-08-21 Toyota Motor Co Ltd Rocker arm spring for a valve actuating mechanism of an internal combustion engine
GB2230838B (en) * 1989-04-17 1993-09-22 Ntn Toyo Bearing Co Ltd Autotensioner
WO2014037130A1 (en) * 2012-09-07 2014-03-13 Schaeffler Technologies AG & Co. KG Valve train for an internal combustion engine

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098240A (en) * 1975-02-18 1978-07-04 Eaton Corporation Valve gear and lash adjustment means for same
JPS5245783A (en) * 1975-10-07 1977-04-11 Shindengen Electric Mfg Co Ltd Power source device for electric dust collector
US4184464A (en) * 1977-05-13 1980-01-22 Stanadyne, Inc. Recirculation groove for hydraulic lash adjuster
DE2911550C2 (en) * 1978-03-23 1982-12-23 Aisin Seiki K.K., Kariya, Aichi Valve clearance compensation device
DE3101305A1 (en) * 1980-01-28 1981-11-19 Aisin Seiki K.K., Kariya, Aichi HYDRAULIC SUPPORT DEVICE FOR A LEVER BEARING OF A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
JPS56124615A (en) * 1980-03-06 1981-09-30 Aisin Seiki Co Ltd Rush adjuster device
JPS5852322Y2 (en) * 1980-04-15 1983-11-29 カスヤ精工株式会社 Pressure body rotation prevention device for oil-containing tappet with push rod pressure body
IT8253761V0 (en) * 1982-10-05 1982-10-05 Riv Officine Di Villar Perosa GAME COMPENSATOR DEVICE SUITABLE TO BE INSERTED IN A KINEMATIC CHAIN FOR THE CONTROL OF A VALVE OF AN ENDOTHERMAL MOTOR
JPS60131605U (en) * 1984-02-13 1985-09-03 トヨタ自動車株式会社 Rotsuka arm with built-in hydraulic lifter
DE3725245A1 (en) * 1987-07-30 1989-02-09 Schaeffler Waelzlager Kg BALL JOINT WHICH IS ON BETWEEN A ROCKER ARM AND A VALVE STOVE OF AN INTERNAL COMBUSTION ENGINE
US5509385A (en) * 1995-06-15 1996-04-23 Precision Engine Products Corp. Hydraulic lash adjuster metering valve
US5964193A (en) * 1998-08-20 1999-10-12 Ford Global Technologies, Inc. Synchronous hydraulic lash adjuster
US5967105A (en) * 1998-08-24 1999-10-19 Ford Global Technologies, Inc. Hydraulic lash adjuster with an open ended top plunger surface
US5931132A (en) * 1998-08-24 1999-08-03 Freeland; Mark Hydraulic lash adjuster with pressure relief check valve
US6006710A (en) * 1998-08-31 1999-12-28 Ford Global Technologies, Inc. Hydraulic lash adjuster mechanism with pressure controlled leak down
US6491012B2 (en) 2000-09-13 2002-12-10 Toledo Technologies Inc. Rocker arm assembly having a spring clip valve guide
DE10056423A1 (en) * 2000-11-14 2002-05-29 Fev Motorentech Gmbh Mechanical valve lash adjuster for a valve train on a piston internal combustion engine
US7191745B2 (en) * 2002-10-18 2007-03-20 Maclean-Fogg Company Valve operating assembly
US7028654B2 (en) * 2002-10-18 2006-04-18 The Maclean-Fogg Company Metering socket
DE102005029831A1 (en) 2004-07-23 2006-03-16 Ina-Schaeffler Kg Hydraulic valve-lash-adjusting element for engine valve train, has valve shutter virtually stationary within piston which is moved relative to shutter to control upper and lower ports in piston
US9091187B2 (en) * 2013-02-04 2015-07-28 GM Global Technology Operations LLC Stationary hydraulic lash adjuster and roller finger follower assembly clip, and method thereof
DE102016002513B4 (en) * 2016-03-02 2017-12-28 Audi Ag Hydraulic valve clearance compensation element for a valve train of an internal combustion engine, corresponding valve train and method for operating a valve train
DE102016124579B3 (en) 2016-12-16 2018-05-03 Schaeffler Technologies AG & Co. KG Autonomous hydraulic support element

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124114A (en) * 1964-03-10 Voorhies
US1798938A (en) * 1927-04-25 1931-03-31 Gen Motors Res Corp Hydraulic slack adjuster
US2818844A (en) * 1956-09-13 1958-01-07 Wood George Hydraulic lash adjusters
US2964027A (en) * 1958-03-19 1960-12-13 Johnson Products Inc Valve for metering lubricating oil from a hydraulic tappet to a hollow push rod
US2954015A (en) * 1958-10-23 1960-09-27 Eaton Mfg Co Lubricant delivery control
US3054392A (en) * 1960-03-24 1962-09-18 Earl A Thompson Metering valve
US3109418A (en) * 1962-02-23 1963-11-05 William C Exline Hydraulic valve push rod assembly
US3144010A (en) * 1962-08-17 1964-08-11 Gen Motors Corp Push rod with ball check valve
US3153404A (en) * 1963-12-30 1964-10-20 Gen Motors Corp Hydraulic lash adjuster
US3439659A (en) * 1967-05-09 1969-04-22 Standard Screw Spiral metering valve
US3439660A (en) * 1967-05-19 1969-04-22 Standard Screw Tappet metering disk
US3587539A (en) * 1970-04-17 1971-06-28 Johnson Products Inc Hydraulic lash adjuster
US3636932A (en) * 1970-05-18 1972-01-25 Stanadyne Inc Tappet with means for relieving entrained air

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132302A (en) * 1982-12-20 1984-07-04 Gen Motors Corp Hydraulic lash adjuster
US4481913A (en) * 1982-12-20 1984-11-13 General Motors Corporation Hydraulic lash adjuster oil metering ball valve
GB2153432A (en) * 1984-01-13 1985-08-21 Toyota Motor Co Ltd Rocker arm spring for a valve actuating mechanism of an internal combustion engine
GB2230838B (en) * 1989-04-17 1993-09-22 Ntn Toyo Bearing Co Ltd Autotensioner
WO2014037130A1 (en) * 2012-09-07 2014-03-13 Schaeffler Technologies AG & Co. KG Valve train for an internal combustion engine

Also Published As

Publication number Publication date
CA976442A (en) 1975-10-21
AU5005572A (en) 1974-06-20
JPS4912224A (en) 1974-02-02
FR2173526A5 (en) 1973-10-05
BR7300866D0 (en) 1973-10-11
US3805753A (en) 1974-04-23
DE2300467A1 (en) 1973-08-30
IT972668B (en) 1974-05-31
AU463616B2 (en) 1975-07-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee