FR2453974A1 - Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne - Google Patents

Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne

Info

Publication number
FR2453974A1
FR2453974A1 FR7909212A FR7909212A FR2453974A1 FR 2453974 A1 FR2453974 A1 FR 2453974A1 FR 7909212 A FR7909212 A FR 7909212A FR 7909212 A FR7909212 A FR 7909212A FR 2453974 A1 FR2453974 A1 FR 2453974A1
Authority
FR
France
Prior art keywords
engine
auxiliary piston
relief port
engine load
oil relief
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.)
Granted
Application number
FR7909212A
Other languages
English (en)
Other versions
FR2453974B1 (fr
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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7909212A priority Critical patent/FR2453974A1/fr
Publication of FR2453974A1 publication Critical patent/FR2453974A1/fr
Application granted granted Critical
Publication of FR2453974B1 publication Critical patent/FR2453974B1/fr
Granted 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
    • 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
    • F01L1/245—Hydraulic tappets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

DISPOSITIF COMPORTANT UN POUSSOIR HYDRAULIQUE COMMANDE PAR UN ARBRE A CAMES, PROPRE A TRANSMETTRE LA POUSSEE D'UNE CAME A TIGE AGISSANT SUR UNE QUEUE DE SOUPAPE, CE POUSSOIR COMPORTANT DEUX PISTONS SEPARES PAR UN VOLUME DE LIQUIDE, L'UN DES PISTONS ETANT EN APPUI CONTRE LA CAME, TANDIS QUE L'AUTRE PISTON EST EN APPUI CONTRE UNE EXTREMITE DE LA TIGE. IL COMPREND DES MOYENS DE LIAISON L DU VOLUME 8 A UNE SOURCE DE LIQUIDE SOUS PRESSION P, ET DES MOYENS DE DISTRIBUTION D PROPRES A METTRE EN LIAISON AVEC, OU A ISOLER D'UN RESERVOIR R LE SUSDIT VOLUME 8, CES MOYENS DE DISTRIBUTION ETANT COMMANDES, D'UNE PART, EN SYNCHRONISME AVEC LES DEPLACEMENTS DU POUSSOIR 1, ET, D'AUTRE PART, EN FONCTION DU REGIME ETOU DE LA CHARGEUR DU MOTEUR. APPLICATION AUX MOTEURS A COMBUSTION INTERNE.
FR7909212A 1979-04-11 1979-04-11 Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne Granted FR2453974A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7909212A FR2453974A1 (fr) 1979-04-11 1979-04-11 Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7909212A FR2453974A1 (fr) 1979-04-11 1979-04-11 Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne

Publications (2)

Publication Number Publication Date
FR2453974A1 true FR2453974A1 (fr) 1980-11-07
FR2453974B1 FR2453974B1 (fr) 1983-02-18

Family

ID=9224226

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909212A Granted FR2453974A1 (fr) 1979-04-11 1979-04-11 Perfectionnements aux dispositifs de commande de soupapes de moteur a combustion interne

Country Status (1)

Country Link
FR (1) FR2453974A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567569A1 (fr) * 1984-07-13 1986-01-17 Peugeot Dispositif de commande variable d'une soupape a partir d'un arbre a cames
US5451029A (en) * 1992-06-05 1995-09-19 Volkswagen Ag Variable valve control arrangement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439661A (en) * 1968-01-11 1969-04-22 Michael A Weiler Controlled displacement hydraulic lifter
US3921609A (en) * 1974-08-16 1975-11-25 Rhoads Jack L Variable duration hydraulic valve tappet
US4020806A (en) * 1974-12-28 1977-05-03 Nissan Motor Co., Ltd. Hydraulic valve lifter for internal combustion engine
US4133332A (en) * 1977-10-13 1979-01-09 The Torrington Company Valve control mechanism
US4143629A (en) * 1977-01-17 1979-03-13 Caterpillar Tractor Co. Speed controlled hydraulic lifter for internal combustion engines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3439661A (en) * 1968-01-11 1969-04-22 Michael A Weiler Controlled displacement hydraulic lifter
US3921609A (en) * 1974-08-16 1975-11-25 Rhoads Jack L Variable duration hydraulic valve tappet
US4020806A (en) * 1974-12-28 1977-05-03 Nissan Motor Co., Ltd. Hydraulic valve lifter for internal combustion engine
US4143629A (en) * 1977-01-17 1979-03-13 Caterpillar Tractor Co. Speed controlled hydraulic lifter for internal combustion engines
US4133332A (en) * 1977-10-13 1979-01-09 The Torrington Company Valve control mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567569A1 (fr) * 1984-07-13 1986-01-17 Peugeot Dispositif de commande variable d'une soupape a partir d'un arbre a cames
US5451029A (en) * 1992-06-05 1995-09-19 Volkswagen Ag Variable valve control arrangement

Also Published As

Publication number Publication date
FR2453974B1 (fr) 1983-02-18

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse