Global Patent Index - EP 0677138 B1

EP 0677138 B1 19981028 - PNEUMATIC VALVE RETURN SYSTEM FOR INTERNAL COMBUSTION ENGINE

Title (en)

PNEUMATIC VALVE RETURN SYSTEM FOR INTERNAL COMBUSTION ENGINE

Title (de)

PNEUMATISCHES VENTIL-RÜCKSTELLSYSTEM FÜR EINEN VERBRENNUNGSMOTOR

Title (fr)

SYSTEME DE RAPPEL PNEUMATIQUE DE SOUPAPE POUR MOTEUR A COMBUSTION INTERNE

Publication

EP 0677138 B1 19981028 (FR)

Application

EP 94903917 A 19931228

Priority

  • FR 9301302 W 19931228
  • FR 9312913 A 19931029

Abstract (en)

[origin: WO9512059A1] In a known manner, such a system comprises a piston (4) integral with the stem (3) of a valve (1) and sliding in a cylinder (5), the piston (4), the valve stem (3) and the cylinder (5) defining a chamber (6) which contains a compressible fluid. According to the invention, the chamber (6) is connected through a single calibrating hole (8) to a system for oil discharge and fluid pressure regulation located externally to the cylinder head. Application to the motor vehicle industry.

IPC 1-7

F01L 3/10; F01L 1/46

IPC 8 full level

F01L 3/10 (2006.01); F01L 1/46 (2006.01); F01L 3/20 (2006.01)

CPC (source: EP US)

F01L 1/465 (2013.01 - EP US)

Designated contracting state (EPC)

AT DE GB IT

DOCDB simple family (publication)

WO 9512059 A1 19950504; AT E172782 T1 19981115; AU 5817794 A 19950522; DE 69321850 D1 19981203; DE 69321850 T2 19990415; EP 0677138 A1 19951018; EP 0677138 B1 19981028; FR 2711729 A1 19950505; FR 2711729 B1 19951201; JP 3415847 B2 20030609; JP H08505454 A 19960611; US 5664527 A 19970909

DOCDB simple family (application)

FR 9301302 W 19931228; AT 94903917 T 19931228; AU 5817794 A 19931228; DE 69321850 T 19931228; EP 94903917 A 19931228; FR 9312913 A 19931029; JP 51243695 A 19931228; US 49618095 A 19950628