GB1371004A - Hydraulic backlash adjuster and meter means - Google Patents

Hydraulic backlash adjuster and meter means

Info

Publication number
GB1371004A
GB1371004A GB730473A GB730473A GB1371004A GB 1371004 A GB1371004 A GB 1371004A GB 730473 A GB730473 A GB 730473A GB 730473 A GB730473 A GB 730473A GB 1371004 A GB1371004 A GB 1371004A
Authority
GB
United Kingdom
Prior art keywords
plunger
seat member
cam
adjuster
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
GB730473A
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
Priority claimed from US300270A external-priority patent/US3902467A/en
Application filed by Johnson Products Inc filed Critical Johnson Products Inc
Publication of GB1371004A publication Critical patent/GB1371004A/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

1371004 Cam mechanisms; IC engine valve gear JOHNSON PRODUCTS Inc 14 Feb 1973 [24 Oct 1972] 7304/73 Heading F1B [Also in Division F2] In an hydraulic automatic back-lash adjuster pillar 100 for an overhead cam-shaft I. C. engine valve operating mechanism of the type in which a rocker arm 108 has one end 114 pivotally mounted on the fulcrum head 150 of a plunger assembly 134 extending from the adjuster pillar body 120, the other end engaging a valve stem 102, and a portion of its upper surface between its ends engaging a cam 110, the flow of lubricating oil to the I. C. engine valve gear, e.g. cam 110, through a duct 115 in the rocker arm 108 is metered by its passage from an inlet 158 through the adjuster pillar 100. As shown, the oil reaches a reservoir 126 inside the lower plunger 122 via an annular recess 146 and a groove 142 in one of the engaging faces of an intermediate seat member 138 and the lower plunger 122, oil reaching an outlet duct 156 in the upper plunger 136 via an annular gap 148 around seat member 138 and a further groove 140 in one of the engaging faces of the seat member 138 and the upper plunger 136, either the annular gap 148 or one or other of the grooves 140, 142 performing the metering function. In an alternative arrangement, Fig.4 (not shown) the slot 142 is replaced by an arrangement of radial grooves formed in the upper end of the lower plunger 122 for freer oil access to the reservoir 126, the annular gap 148 or slot 140 metering the flow. The upper plunger 136 and seat member 138 may be heat sintered from metal powder.
GB730473A 1972-10-24 1973-02-14 Hydraulic backlash adjuster and meter means Expired GB1371004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US300270A US3902467A (en) 1971-09-13 1972-10-24 Lash adjuster and meter means

Publications (1)

Publication Number Publication Date
GB1371004A true GB1371004A (en) 1974-10-23

Family

ID=23158396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB730473A Expired GB1371004A (en) 1972-10-24 1973-02-14 Hydraulic backlash adjuster and meter means

Country Status (2)

Country Link
CA (1) CA973044A (en)
GB (1) GB1371004A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014038A1 (en) * 1991-02-01 1992-08-20 Siemens Aktiengesellschaft Lash adjuster for engine valve actuator assembly
GB2230838B (en) * 1989-04-17 1993-09-22 Ntn Toyo Bearing Co Ltd Autotensioner
CN110173321A (en) * 2019-06-04 2019-08-27 浙江大学 Engine integrated form variable rocker-arm retarder and its working method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230838B (en) * 1989-04-17 1993-09-22 Ntn Toyo Bearing Co Ltd Autotensioner
WO1992014038A1 (en) * 1991-02-01 1992-08-20 Siemens Aktiengesellschaft Lash adjuster for engine valve actuator assembly
CN110173321A (en) * 2019-06-04 2019-08-27 浙江大学 Engine integrated form variable rocker-arm retarder and its working method
CN110173321B (en) * 2019-06-04 2023-07-21 浙江大学 Engine integrated variable rocker arm retarder and working method thereof

Also Published As

Publication number Publication date
CA973044A (en) 1975-08-19

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930212