DE69304302T2 - Ventilsteuerungseinrichtung mit variabler Geometrie für eine Brennkraftmaschine - Google Patents

Ventilsteuerungseinrichtung mit variabler Geometrie für eine Brennkraftmaschine

Info

Publication number
DE69304302T2
DE69304302T2 DE69304302T DE69304302T DE69304302T2 DE 69304302 T2 DE69304302 T2 DE 69304302T2 DE 69304302 T DE69304302 T DE 69304302T DE 69304302 T DE69304302 T DE 69304302T DE 69304302 T2 DE69304302 T2 DE 69304302T2
Authority
DE
Germany
Prior art keywords
cylinder head
pivot lever
internal combustion
combustion engine
engine cylinder
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 - Fee Related
Application number
DE69304302T
Other languages
German (de)
English (en)
Other versions
DE69304302D1 (de
Inventor
Franco Battistino
Giorgio Roffina
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 Auto SpA
Original Assignee
Fiat Auto 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 Auto SpA filed Critical Fiat Auto SpA
Application granted granted Critical
Publication of DE69304302D1 publication Critical patent/DE69304302D1/de
Publication of DE69304302T2 publication Critical patent/DE69304302T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L13/0042—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams being profiled in axial and radial direction
    • 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
    • F01L1/185—Overhead end-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
    • F01L1/26—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
    • 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
    • F02B2275/18—DOHC [Double overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
DE69304302T 1993-02-10 1993-11-29 Ventilsteuerungseinrichtung mit variabler Geometrie für eine Brennkraftmaschine Expired - Fee Related DE69304302T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930079A IT1270443B (it) 1993-02-10 1993-02-10 Comando di distribuzione a geometria variabile per un motore a combustione interna.

Publications (2)

Publication Number Publication Date
DE69304302D1 DE69304302D1 (de) 1996-10-02
DE69304302T2 true DE69304302T2 (de) 1997-01-02

Family

ID=11411099

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69304302T Expired - Fee Related DE69304302T2 (de) 1993-02-10 1993-11-29 Ventilsteuerungseinrichtung mit variabler Geometrie für eine Brennkraftmaschine

Country Status (3)

Country Link
EP (1) EP0615057B1 (it)
DE (1) DE69304302T2 (it)
IT (1) IT1270443B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5988128A (en) * 1997-03-27 1999-11-23 Toyota Jidosha Kabushiki Kaisha Valve driving apparatus for engine
DE102006047293A1 (de) * 2006-10-06 2008-04-10 Schaeffler Kg Ventiltrieb für eine Brennkraftmaschine mit verschiebbaren Raumnocken

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1586933A (it) * 1968-09-25 1970-03-06
JPS59103907A (ja) * 1982-12-07 1984-06-15 Honda Motor Co Ltd 内燃機関の動弁装置
IT1195192B (it) * 1986-10-07 1988-10-12 Fiat Auto Spa Comando valvole per motori ad alberi a camme in testa
DE3708675A1 (de) * 1987-03-17 1988-09-29 Bayerische Motoren Werke Ag Ventilbetaetigungsanordnung fuer brennkraftmaschinen mit mehreren gleichartigen ventilen fuer jeden zylinder
DE4117566A1 (de) * 1991-05-29 1992-12-03 Audi Ag Ventilsteuerung fuer eine brennkraftmaschine
IT1257540B (it) * 1992-05-22 1996-01-30 Ferrari Spa Sistema di comando di valvole per un motore endotermico a fasatura variabile, in particolare un motore con piu' valvole per cilindro.

Also Published As

Publication number Publication date
ITTO930079A0 (it) 1993-02-10
EP0615057B1 (en) 1996-08-28
EP0615057A1 (en) 1994-09-14
ITTO930079A1 (it) 1994-08-10
IT1270443B (it) 1997-05-05
DE69304302D1 (de) 1996-10-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee