ES2100428T3 - Grupo accionador hidraulico, especialmente para controlar una valvula de un motor de combustion interna. - Google Patents

Grupo accionador hidraulico, especialmente para controlar una valvula de un motor de combustion interna.

Info

Publication number
ES2100428T3
ES2100428T3 ES93119034T ES93119034T ES2100428T3 ES 2100428 T3 ES2100428 T3 ES 2100428T3 ES 93119034 T ES93119034 T ES 93119034T ES 93119034 T ES93119034 T ES 93119034T ES 2100428 T3 ES2100428 T3 ES 2100428T3
Authority
ES
Spain
Prior art keywords
valve
control
combustion engine
internal combustion
hydraulic drive
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 - Lifetime
Application number
ES93119034T
Other languages
English (en)
Inventor
Francesco Cuniberti
Giancarlo Dellora
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.)
Iveco SpA
Original Assignee
Iveco 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 Iveco Fiat SpA filed Critical Iveco Fiat SpA
Application granted granted Critical
Publication of ES2100428T3 publication Critical patent/ES2100428T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01L13/0005—Deactivating valves
    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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

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)

Abstract

UNA UNIDAD DE ACTUACION HIDRAULICA QUE COMPRENDE UN MIEMBRO (11) DE CONTROL FORMADO POR UN PRIMER MIEMBRO (19) TUBULAR QUE DEFINE UN PAR DE CAVIDADES (38, 48) QUE ACOMODAN DESLIZABLE Y RESPECTIVAMENTE UN SEGUNDO MIEMBRO (14) Y UN TERCER MIEMBRO (43); EL TERCER MIEMBRO (43) INCORPORA UNA VALVULA SIN RETORNO QUE COMUNICA CON UNA CAMARA (34), FORMADA ENTRE EL PRIMER MIEMBRO (19) Y EL SEGUNDO MIEMBRO (14), Y CON UN CONDUCTO DE SUMINISTRO (60) PARA FLUIDO HIDRAULICO, Y ES MOVIL BAJO LA PRESION DEL FLUIDO HIDRAULICO Y CONTRA LA ACCION DE LOS MEDIOS (44) ELASTICOS DESDE UNA POSICION DE REPOSO, EN LA CUAL CONECTA DICHA CAMARA (34) CON UNA ABERTURA DE SALIDA (37, 39) DEL PRIMER MIEMBRO (19), DENTRO DE UNA SEGUNDA POSICION OPERATIVA EN LA CUAL DICHA CAMARA (34) SE AISLA DE LA ABERTURA (37, 39) DE SALIDA.
ES93119034T 1992-11-30 1993-11-25 Grupo accionador hidraulico, especialmente para controlar una valvula de un motor de combustion interna. Expired - Lifetime ES2100428T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920972A IT1257926B (it) 1992-11-30 1992-11-30 Unita' di azionamento idraulica, particolarmente per il comando di unavalvola di un motore a combustione interna.

Publications (1)

Publication Number Publication Date
ES2100428T3 true ES2100428T3 (es) 1997-06-16

Family

ID=11410895

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93119034T Expired - Lifetime ES2100428T3 (es) 1992-11-30 1993-11-25 Grupo accionador hidraulico, especialmente para controlar una valvula de un motor de combustion interna.

Country Status (4)

Country Link
EP (1) EP0600381B1 (es)
DE (1) DE69309229T2 (es)
ES (1) ES2100428T3 (es)
IT (1) IT1257926B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1612376B1 (en) 2004-06-29 2009-05-20 Eaton S.R.L. Open ended mini lash adjuster

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050435A (en) * 1975-12-02 1977-09-27 Harold L. Fuller, Jr. Valve control for cylinder cutout system
US4337739A (en) * 1980-03-24 1982-07-06 Jordan Edgar R Valve control mechanism for internal combustion engines
DE4000531A1 (de) * 1990-01-10 1990-06-13 Roland Schmidt Verstellvorrichtung zur veraenderung von ventilsteuerzeiten und ventilhub

Also Published As

Publication number Publication date
DE69309229D1 (de) 1997-04-30
DE69309229T2 (de) 1997-07-31
ITTO920972A1 (it) 1994-05-30
ITTO920972A0 (it) 1992-11-30
EP0600381A1 (en) 1994-06-08
IT1257926B (it) 1996-02-19
EP0600381B1 (en) 1997-03-26

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