IT1268193B1 - CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE - Google Patents

CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE

Info

Publication number
IT1268193B1
IT1268193B1 IT94TO001062A ITTO941062A IT1268193B1 IT 1268193 B1 IT1268193 B1 IT 1268193B1 IT 94TO001062 A IT94TO001062 A IT 94TO001062A IT TO941062 A ITTO941062 A IT TO941062A IT 1268193 B1 IT1268193 B1 IT 1268193B1
Authority
IT
Italy
Prior art keywords
valve
control device
combustion engine
internal combustion
engine
Prior art date
Application number
IT94TO001062A
Other languages
Italian (it)
Inventor
Renato Filippi
Francesco Vattaneo
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
Priority to IT94TO001062A priority Critical patent/IT1268193B1/en
Publication of ITTO941062A0 publication Critical patent/ITTO941062A0/en
Priority to EP95119946A priority patent/EP0719909B1/en
Priority to DE69508214T priority patent/DE69508214T2/en
Publication of ITTO941062A1 publication Critical patent/ITTO941062A1/en
Application granted granted Critical
Publication of IT1268193B1 publication Critical patent/IT1268193B1/en

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
    • F01L13/0031—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
    • 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
    • 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
    • F01L1/16—Silencing impact; Reducing wear

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)
IT94TO001062A 1994-12-22 1994-12-22 CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE IT1268193B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT94TO001062A IT1268193B1 (en) 1994-12-22 1994-12-22 CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE
EP95119946A EP0719909B1 (en) 1994-12-22 1995-12-18 A valve control system for an internal combustion engine
DE69508214T DE69508214T2 (en) 1994-12-22 1995-12-18 Valve control device of an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94TO001062A IT1268193B1 (en) 1994-12-22 1994-12-22 CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE

Publications (3)

Publication Number Publication Date
ITTO941062A0 ITTO941062A0 (en) 1994-12-22
ITTO941062A1 ITTO941062A1 (en) 1996-06-22
IT1268193B1 true IT1268193B1 (en) 1997-02-21

Family

ID=11413001

Family Applications (1)

Application Number Title Priority Date Filing Date
IT94TO001062A IT1268193B1 (en) 1994-12-22 1994-12-22 CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE

Country Status (3)

Country Link
EP (1) EP0719909B1 (en)
DE (1) DE69508214T2 (en)
IT (1) IT1268193B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123966A1 (en) * 2001-05-17 2002-11-21 Ina Schaeffler Kg Bucket tappet for valve drive has jacket with appreciably lower height than bucket tappet as whole

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1602356A (en) * 1968-08-14 1970-11-16
FR2359967A1 (en) * 1976-07-29 1978-02-24 Chrysler France Hydraulic tappet for IC engine valve operation - has stiff valve spring hydraulically connected to valve stem via floating piston
DE3913530A1 (en) * 1988-05-10 1989-11-23 Volkswagen Ag Valve actuating device
IT1257904B (en) * 1992-06-19 1996-02-16 Fiat Ricerche CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE.
IT1273185B (en) * 1994-05-06 1997-07-07 Fiat Auto Spa CONTROL DEVICE OF A VALVE OF AN INTERNAL COMBUSTION ENGINE WITH RECOVERY DEVICE OF THE TAPPING GAP

Also Published As

Publication number Publication date
ITTO941062A1 (en) 1996-06-22
DE69508214T2 (en) 1999-06-24
ITTO941062A0 (en) 1994-12-22
EP0719909A1 (en) 1996-07-03
EP0719909B1 (en) 1999-03-10
DE69508214D1 (en) 1999-04-15

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981231