ITTO20010269A0 - Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol - Google Patents

Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol

Info

Publication number
ITTO20010269A0
ITTO20010269A0 IT2001TO000269A ITTO20010269A ITTO20010269A0 IT TO20010269 A0 ITTO20010269 A0 IT TO20010269A0 IT 2001TO000269 A IT2001TO000269 A IT 2001TO000269A IT TO20010269 A ITTO20010269 A IT TO20010269A IT TO20010269 A0 ITTO20010269 A0 IT TO20010269A0
Authority
IT
Italy
Prior art keywords
compensation
vol
variations
combustion engine
internal combustion
Prior art date
Application number
IT2001TO000269A
Other languages
English (en)
Inventor
Francesco Vattaneo
Andrea Pecori
Stefano Chiappini
Original Assignee
Fiat Ricerche
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 Ricerche filed Critical Fiat Ricerche
Priority to IT2001TO000269A priority Critical patent/ITTO20010269A1/it
Publication of ITTO20010269A0 publication Critical patent/ITTO20010269A0/it
Priority to DE60200462T priority patent/DE60200462T2/de
Priority to ES02005746T priority patent/ES2218483T3/es
Priority to EP02005746A priority patent/EP1243761B1/en
Priority to US10/102,727 priority patent/US6530350B2/en
Priority to JP2002083339A priority patent/JP4098543B2/ja
Publication of ITTO20010269A1 publication Critical patent/ITTO20010269A1/it

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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
    • F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a 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
    • F01L1/344—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—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 changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34446—Fluid accumulators for the feeding circuit
    • 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
    • F01L2760/00—Control of valve gear to facilitate reversing, starting, braking of four stroke engines
    • F01L2760/001—Control of valve gear to facilitate reversing, starting, braking of four stroke engines for starting four stroke engines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
IT2001TO000269A 2001-03-23 2001-03-23 Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol ITTO20010269A1 (it)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT2001TO000269A ITTO20010269A1 (it) 2001-03-23 2001-03-23 Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol
DE60200462T DE60200462T2 (de) 2001-03-23 2002-03-13 Brennkraftmaschine mit hydraulischer Vorrichtung zur variablen Betätigung der Ventile und Mittel zum Ausgleichen von Volumenänderungen der hydraulischen Flüssigkeit
ES02005746T ES2218483T3 (es) 2001-03-23 2002-03-13 Motor de combustion interna con sistema hidraulico para el accionamiento variable de las valvulas y medios para compensar variaciones en volumen de fluido hidraulico.
EP02005746A EP1243761B1 (en) 2001-03-23 2002-03-13 Internal-combustion engine with hydraulic system for variable operation of the valves and means for compensating variations in volume of the hydraulic fluid
US10/102,727 US6530350B2 (en) 2001-03-23 2002-03-22 Internal-combustion engine with hydraulic system for variable operation of the valves and means for compensating variations in volume of the hydraulic fluid
JP2002083339A JP4098543B2 (ja) 2001-03-23 2002-03-25 バルブを様々に機能させる流体圧システムおよび流体の容積変動を補償する手段を備えた内燃機関

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2001TO000269A ITTO20010269A1 (it) 2001-03-23 2001-03-23 Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol

Publications (2)

Publication Number Publication Date
ITTO20010269A0 true ITTO20010269A0 (it) 2001-03-23
ITTO20010269A1 ITTO20010269A1 (it) 2002-09-23

Family

ID=11458717

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2001TO000269A ITTO20010269A1 (it) 2001-03-23 2001-03-23 Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol

Country Status (6)

Country Link
US (1) US6530350B2 (it)
EP (1) EP1243761B1 (it)
JP (1) JP4098543B2 (it)
DE (1) DE60200462T2 (it)
ES (1) ES2218483T3 (it)
IT (1) ITTO20010269A1 (it)

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EP2261471B1 (en) * 2009-05-25 2014-09-17 C.R.F. Società Consortile per Azioni Internal combustion engine with two hydraulically actuated intake valves with different return springs for each cylinder
ATE534806T1 (de) * 2009-06-30 2011-12-15 Fiat Ricerche Hydraulisches system unter elektronischer kontrolle zur variablen betätigung der ventile einer brennkraftmaschine, mit schneller befüllung der hochdrukteils des systems
DE102009054052B4 (de) 2009-11-20 2018-08-23 Schaeffler Technologies AG & Co. KG Schaltbare Vorrichtung zur Druckversorgung
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KR20120017982A (ko) * 2010-08-20 2012-02-29 현대자동차주식회사 전기-유압 가변 밸브 리프트 장치
JP5973146B2 (ja) * 2011-09-27 2016-08-23 日野自動車株式会社 油圧式可変バルブ装置の異常診断装置
EP2653703B1 (en) 2012-04-19 2014-04-30 C.R.F. Società Consortile per Azioni Internal combustion engine with cylinders which can be deactivated, in which the deactivated cylinders are used as pumps for recirculating exhaust gases into the active cylinders, and method for controlling this engine
US9863293B2 (en) 2012-08-01 2018-01-09 GM Global Technology Operations LLC Variable valve actuation system including an accumulator and a method for controlling the variable valve actuation system
US9255498B2 (en) * 2012-08-06 2016-02-09 Mahle International Gmbh Variable valve phasing lift and duration
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US9631526B2 (en) 2014-09-17 2017-04-25 Fca Us Llc Engine variable valve lift system having integrated hydraulic fluid retention
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EP3156619B1 (en) 2015-10-13 2018-06-06 C.R.F. Società Consortile per Azioni System and method for variable actuation of a valve of an internal combustion engine, with a device for dampening pressure oscillations
EP3181842B1 (en) 2015-12-17 2019-06-19 C.R.F. Società Consortile per Azioni System and method for variable actuation of a valve of an internal combustion engine, with an electrically operated control valve having an improved control
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EP4074945B1 (en) 2021-04-13 2023-05-31 C.R.F. Società Consortile per Azioni System for actuation of an intake valve of an internal combustion engine

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Also Published As

Publication number Publication date
EP1243761A1 (en) 2002-09-25
JP4098543B2 (ja) 2008-06-11
ITTO20010269A1 (it) 2002-09-23
ES2218483T3 (es) 2004-11-16
DE60200462D1 (de) 2004-06-17
EP1243761B1 (en) 2004-05-12
US20020134328A1 (en) 2002-09-26
US6530350B2 (en) 2003-03-11
DE60200462T2 (de) 2004-09-23
JP2002309914A (ja) 2002-10-23

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