IT1291490B1 - Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile - Google Patents

Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile

Info

Publication number
IT1291490B1
IT1291490B1 IT97TO000078A ITTO970078A IT1291490B1 IT 1291490 B1 IT1291490 B1 IT 1291490B1 IT 97TO000078 A IT97TO000078 A IT 97TO000078A IT TO970078 A ITTO970078 A IT TO970078A IT 1291490 B1 IT1291490 B1 IT 1291490B1
Authority
IT
Italy
Prior art keywords
cylinder engine
diesel cycle
acting valves
cycle multi
variable acting
Prior art date
Application number
IT97TO000078A
Other languages
English (en)
Inventor
Lorentino Macor
Andrea Pecori
Original Assignee
C R F Societa Consotile Per Az
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 to IT97TO000078A priority Critical patent/IT1291490B1/it
Application filed by C R F Societa Consotile Per Az filed Critical C R F Societa Consotile Per Az
Priority to ES98907997T priority patent/ES2216274T3/es
Priority to CN98802284A priority patent/CN1098969C/zh
Priority to EP98907997A priority patent/EP0961870B1/en
Priority to KR1019997006967A priority patent/KR100334314B1/ko
Priority to DE69822801T priority patent/DE69822801T2/de
Priority to PCT/EP1998/000437 priority patent/WO1998034014A1/en
Priority to US09/355,524 priority patent/US6237551B1/en
Priority to JP10532518A priority patent/JP2000509781A/ja
Publication of ITTO970078A1 publication Critical patent/ITTO970078A1/it
Application granted granted Critical
Publication of IT1291490B1 publication Critical patent/IT1291490B1/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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • 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
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • 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
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2820/01—Absolute values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/32—Miller cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
IT97TO000078A 1997-02-04 1997-02-04 Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile IT1291490B1 (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT97TO000078A IT1291490B1 (it) 1997-02-04 1997-02-04 Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile
CN98802284A CN1098969C (zh) 1997-02-04 1998-01-27 具有可变阀作动装置的多缸内燃机
EP98907997A EP0961870B1 (en) 1997-02-04 1998-01-27 Multi-cylinder diesel engine with variable valve actuation
KR1019997006967A KR100334314B1 (ko) 1997-02-04 1998-01-27 다중실린더의 디젤기관
ES98907997T ES2216274T3 (es) 1997-02-04 1998-01-27 Motor diesel de multiples cilindros con accionamiento de valvula variable.
DE69822801T DE69822801T2 (de) 1997-02-04 1998-01-27 Mehrzylinderbrennkraftmaschine mit variabler ventilsteuerung
PCT/EP1998/000437 WO1998034014A1 (en) 1997-02-04 1998-01-27 Multi-cylinder diesel engine with variable valve actuation
US09/355,524 US6237551B1 (en) 1997-02-04 1998-01-27 Multi-cylinder diesel engine with variable valve actuation
JP10532518A JP2000509781A (ja) 1997-02-04 1998-01-27 可変弁作動を行う多気筒ディーゼルエンジン

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97TO000078A IT1291490B1 (it) 1997-02-04 1997-02-04 Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile

Publications (2)

Publication Number Publication Date
ITTO970078A1 ITTO970078A1 (it) 1998-08-04
IT1291490B1 true IT1291490B1 (it) 1999-01-11

Family

ID=11415300

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97TO000078A IT1291490B1 (it) 1997-02-04 1997-02-04 Motore pluricilindrico a ciclo diesel con valvole ad azionamento variabile

Country Status (9)

Country Link
US (1) US6237551B1 (it)
EP (1) EP0961870B1 (it)
JP (1) JP2000509781A (it)
KR (1) KR100334314B1 (it)
CN (1) CN1098969C (it)
DE (1) DE69822801T2 (it)
ES (1) ES2216274T3 (it)
IT (1) IT1291490B1 (it)
WO (1) WO1998034014A1 (it)

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ITTO970078A1 (it) 1998-08-04
US6237551B1 (en) 2001-05-29
WO1998034014A1 (en) 1998-08-06
KR20000070717A (ko) 2000-11-25
EP0961870A1 (en) 1999-12-08
CN1246911A (zh) 2000-03-08
CN1098969C (zh) 2003-01-15
KR100334314B1 (ko) 2002-04-25
EP0961870B1 (en) 2004-03-31
JP2000509781A (ja) 2000-08-02
DE69822801D1 (de) 2004-05-06
DE69822801T2 (de) 2005-02-10
ES2216274T3 (es) 2004-10-16

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