ES376448A1 - Valve-actuating mechanism for an internal combustion engine - Google Patents

Valve-actuating mechanism for an internal combustion engine

Info

Publication number
ES376448A1
ES376448A1 ES376448A ES376448A ES376448A1 ES 376448 A1 ES376448 A1 ES 376448A1 ES 376448 A ES376448 A ES 376448A ES 376448 A ES376448 A ES 376448A ES 376448 A1 ES376448 A1 ES 376448A1
Authority
ES
Spain
Prior art keywords
valve
internal combustion
combustion engine
actuating mechanism
rocker arm
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
ES376448A
Other languages
Spanish (es)
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.)
Fiat SpA
Original Assignee
Fiat SpA
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 Fiat SpA filed Critical Fiat SpA
Publication of ES376448A1 publication Critical patent/ES376448A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0207—Variable control of intake and exhaust valves changing valve lift or valve lift and timing
    • F02D13/0211—Variable control of intake and exhaust valves changing valve lift or valve lift and timing the change of valve timing is caused by the change in valve lift, i.e. both valve lift and timing are functionally related
    • 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
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • 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
    • F01L13/0021—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 rocker arm ratio
    • 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
    • F01L2820/035—Centrifugal forces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A valve-actuating mechanism for an internal combustion engine has a number of rocker arms for operating the respective valves, each rocker arm having a profiled cam surface for engaging the respective valve, and means, preferably hydraulically operated, for varying the valve movement produced by the rocker arm in dependence upon the engine speed and load to vary the valve timing for optimum efficiency.
ES376448A 1969-02-13 1970-02-11 Valve-actuating mechanism for an internal combustion engine Expired ES376448A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5058169 1969-02-13

Publications (1)

Publication Number Publication Date
ES376448A1 true ES376448A1 (en) 1972-04-16

Family

ID=11273318

Family Applications (1)

Application Number Title Priority Date Filing Date
ES376448A Expired ES376448A1 (en) 1969-02-13 1970-02-11 Valve-actuating mechanism for an internal combustion engine

Country Status (5)

Country Link
US (1) US3641988A (en)
DE (2) DE7005077U (en)
ES (1) ES376448A1 (en)
FR (1) FR2032705A5 (en)
GB (1) GB1299673A (en)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3786792A (en) * 1971-05-28 1974-01-22 Mack Trucks Variable valve timing system
DE2363891A1 (en) * 1973-07-13 1975-06-26 Daimler Benz Ag Valve control system for ic engine - valve rod is controlled by action of lever on adjustable curved surface
US4336775A (en) * 1975-12-12 1982-06-29 Eaton Corporation Valve selector
US4200081A (en) * 1975-12-15 1980-04-29 Eaton Corporation Valve selector
DE2753197A1 (en) * 1976-12-15 1978-06-22 Eaton Corp VALVE CONTROL DEVICE
DE2710189A1 (en) * 1977-03-09 1978-09-14 Daimler Benz Ag COMBUSTION MACHINE WITH INTERNAL COMBUSTION
US4203397A (en) * 1978-06-14 1980-05-20 Eaton Corporation Engine valve control mechanism
FR2472078A1 (en) * 1979-12-21 1981-06-26 Baguena Michel Four stroke engine valve drive - has roller controlling valve timing reciprocated between concave surface and shaped cam face
US4388897A (en) * 1980-09-22 1983-06-21 Bernard Rosa Variable camshaft assembly
JPS57188717A (en) * 1981-05-18 1982-11-19 Nissan Motor Co Ltd Intake and exhaust valve drive device in internal combustion engine
US4438737A (en) * 1981-10-13 1984-03-27 Investment Rarities, Incorporated Apparatus and method for controlling the valve operation of an internal combustion engine
JPS5896134A (en) * 1981-12-03 1983-06-08 Honda Motor Co Ltd Valve drive control device of internal-combustion engine
JPS5896135A (en) * 1981-12-03 1983-06-08 Honda Motor Co Ltd Valve drive control device of internal-combustion engine
US4457268A (en) * 1982-01-25 1984-07-03 Jones Darrell L Valve position control device
AU545712B2 (en) * 1982-07-23 1985-07-25 Honda Giken Kogyo Kabushiki Kaisha I.c. engine valve actuating apparatus
GB2133465A (en) * 1982-12-24 1984-07-25 Ford Motor Co I.c. engine camshaft drive mechanism
US4556025A (en) * 1983-11-18 1985-12-03 Mazda Motor Corporation Engine valve mechanism having valve disabling device
US4643141A (en) * 1986-01-26 1987-02-17 Bledsoe Phillip G Internal combustion engine valve lift and cam duration control system
AU593665B2 (en) * 1986-05-21 1990-02-15 Bennett Automotive Technology Pty. Ltd. Engines for use with gaseous fuels
EP0267244A4 (en) * 1986-05-21 1989-06-21 Bennett Automotive Technology Engines for use with gaseous fuels.
SE464367B (en) * 1987-02-26 1991-04-15 Volvo Ab VALVE MECHANISM CONTROLS A DISTRICT VALVE
DE3833540A1 (en) * 1988-10-01 1990-04-12 Peter Prof Dr Ing Kuhn DEVICE FOR ACTUATING THE VALVES OF INTERNAL COMBUSTION ENGINES WITH VARIABLE VALVE LIFTING CURVE
JP2700692B2 (en) * 1989-06-30 1998-01-21 スズキ株式会社 Valve system for 4-cycle engine
JPH0830403B2 (en) * 1989-12-21 1996-03-27 卓也 松本 Engine valve drive
JP2546435B2 (en) * 1990-11-05 1996-10-23 三菱自動車工業株式会社 Cylinder head of internal combustion engine
US5197447A (en) * 1992-04-14 1993-03-30 Dick Leon B Engine having valve stroke adjuster and fuel preheater
US5988125A (en) * 1997-08-07 1999-11-23 Unisia Jecs Corporation Variable valve actuation apparatus for engine
DE19854382B4 (en) 1998-11-25 2009-01-02 Alstom Method and device for atomizing liquid fuel for a firing plant
DE10040544A1 (en) * 2000-08-18 2002-02-28 Schaeffler Waelzlager Ohg Variable valve drive for externally ignited internal combustion engine, includes movable support arranged in cylinder head and contacting lever which is provided between transmission and inlet valve
AT411090B (en) 2000-12-12 2003-09-25 Jenbacher Ag FULLY VARIABLE HYDRAULIC VALVE ACTUATOR
US7082912B2 (en) * 2001-03-16 2006-08-01 Folino Frank A System and method for controlling engine valve lift and valve opening percentage
US6953014B2 (en) * 2001-03-16 2005-10-11 Folino Frank A Thermal compensating desmodromic valve actuation system
US6619250B2 (en) 2001-03-16 2003-09-16 Frank A. Folino Desmodromic valve actuation system
FR2838769B1 (en) * 2002-04-22 2005-04-22 Mdi Motor Dev Internat VARIABLE FLOW RATE VALVE AND PROGRESSIVE CONTROLLED VALVE DISTRIBUTION FOR COMPRESSED AIR INJECTION ENGINE OPERATING IN MONO AND MULTIPLE ENERGY AND OTHER MOTORS OR COMPRESSORS
US7128034B2 (en) * 2002-10-18 2006-10-31 Maclean-Fogg Company Valve lifter body
US7273026B2 (en) * 2002-10-18 2007-09-25 Maclean-Fogg Company Roller follower body
FR2877991B1 (en) * 2004-11-16 2007-03-30 Renault Sas IMPROVED INTERNAL COMBUSTION ENGINE VALVE CONTROL DEVICE WITH VARIABLE LIFTING
EP1712747A1 (en) * 2005-04-17 2006-10-18 Uwe Eisenbeis Valve train with variable valve stroke and timing for high-speed engines
ATE537334T1 (en) * 2008-03-12 2011-12-15 Kawasaki Heavy Ind Ltd VALVE OPERATION MECHANISM
US7866292B2 (en) * 2008-03-26 2011-01-11 AES Industries Inc Apparatus and methods for continuous variable valve timing
US8033261B1 (en) 2008-11-03 2011-10-11 Robbins Warren H Valve actuation system and related methods
JP5486958B2 (en) * 2010-02-26 2014-05-07 本田技研工業株式会社 Rocker arm structure
US10316709B2 (en) 2015-09-21 2019-06-11 Eaton Intelligent Power Limited Electromechanical valve lash adjuster
GB2583912A (en) 2019-05-06 2020-11-18 Caterpillar Motoren Gmbh & Co Charge changing control device, reciprocating engine and method for operating a charge changing control device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE311884C (en) *
US2191459A (en) * 1940-02-27 duncan
US2097883A (en) * 1932-12-15 1937-11-02 Goetaverken Ab Internal combustion power plant
US2305787A (en) * 1937-09-18 1942-12-22 Kales Josef Internal combustion engine
US2804061A (en) * 1955-01-04 1957-08-27 John G Gamble Valve-actuating mechanism for internal combustion engines
US2851023A (en) * 1956-04-26 1958-09-09 Leroy A Durkan Variable valve timing
FR1284700A (en) * 1961-01-07 1962-02-16 Variable timing control
US3261338A (en) * 1964-07-13 1966-07-19 Automobile Racing Club Of Okla Valve timing mechanism
US3413965A (en) * 1967-07-13 1968-12-03 Ford Motor Co Mechanism for varying the operation of a reciprocating member
US3481314A (en) * 1967-08-29 1969-12-02 Georges G Lecrenn Means for optimizing the performance of internal combustion engines

Also Published As

Publication number Publication date
US3641988A (en) 1972-02-15
GB1299673A (en) 1972-12-13
FR2032705A5 (en) 1970-11-27
DE2006618A1 (en) 1971-02-18
DE7005077U (en) 1971-05-27

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