GB0706889D0 - An engine and valvetrain with dual pushrod lifters and independent lash adjustment - Google Patents

An engine and valvetrain with dual pushrod lifters and independent lash adjustment

Info

Publication number
GB0706889D0
GB0706889D0 GB0706889A GB0706889A GB0706889D0 GB 0706889 D0 GB0706889 D0 GB 0706889D0 GB 0706889 A GB0706889 A GB 0706889A GB 0706889 A GB0706889 A GB 0706889A GB 0706889 D0 GB0706889 D0 GB 0706889D0
Authority
GB
United Kingdom
Prior art keywords
valvetrain
lifters
engine
lash adjustment
pushrod
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Withdrawn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
GB0706889A
Other versions
GB2448325A (en
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.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to GB0706889A priority Critical patent/GB2448325A/en
Publication of GB0706889D0 publication Critical patent/GB0706889D0/en
Publication of GB2448325A publication Critical patent/GB2448325A/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Withdrawn legal-status Critical Current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
    • 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
    • F01L1/146—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
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • 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
    • F01L1/255—Hydraulic tappets between cam 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • 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
    • F01L13/0005—Deactivating valves
    • 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
    • F01L13/0031—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 by modification of tappet or pushrod length
GB0706889A 2007-04-10 2007-04-10 I.c. engine valvetrain with dual pushrod lifters and independent lash adjustment Withdrawn GB2448325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0706889A GB2448325A (en) 2007-04-10 2007-04-10 I.c. engine valvetrain with dual pushrod lifters and independent lash adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0706889A GB2448325A (en) 2007-04-10 2007-04-10 I.c. engine valvetrain with dual pushrod lifters and independent lash adjustment

Publications (2)

Publication Number Publication Date
GB0706889D0 true GB0706889D0 (en) 2007-05-16
GB2448325A GB2448325A (en) 2008-10-15

Family

ID=38091095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0706889A Withdrawn GB2448325A (en) 2007-04-10 2007-04-10 I.c. engine valvetrain with dual pushrod lifters and independent lash adjustment

Country Status (1)

Country Link
GB (1) GB2448325A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8220429B2 (en) * 2009-07-23 2012-07-17 Briggs & Stratton Corporation Overhead valve and rocker arm configuration for a small engine
US8251030B2 (en) * 2009-07-23 2012-08-28 Briggs & Stratton Corporation Rocker cover system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB716828A (en) * 1952-05-23 1954-10-13 Achille Carlo Sampietro Improvements in internal combustion engine valve gear
US2957461A (en) * 1955-01-04 1960-10-25 Chrysler Corp Overhead valve engine
GB1036490A (en) * 1964-12-17 1966-07-20 Daimler Benz Ag Improvements relating to driving arrangements for the valves of internal combustion engines
US4510897A (en) * 1982-06-04 1985-04-16 Motorenfabrik Hatz Gmbh & Co. Kg Mechanism for actuating the valve rockers of an internal combustion engine

Also Published As

Publication number Publication date
GB2448325A (en) 2008-10-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)