Global Patent Index - EP 1666701 A1

EP 1666701 A1 20060607 - VALVE GEAR OF INTERNAL COMBUSTION ENGINE

Title (en)

VALVE GEAR OF INTERNAL COMBUSTION ENGINE

Title (de)

VENTILTRIEB FÜR VERBRENNUNGSMOTOR

Title (fr)

TRAIN DE SOUPAPES POUR MOTEUR THERMIQUE

Publication

EP 1666701 A1 20060607 (EN)

Application

EP 04772152 A 20040825

Priority

  • JP 2004012191 W 20040825
  • JP 2003208562 A 20030825

Abstract (en)

A valve gear of an internal combustion engine, wherein when a zone for one of the positive and negative accelerations of a rotating cam is set to be used by a ramp part, the ramp part is formed in a curved shape so that the lift amount of a swing cam per unit swing angle can generate the other positive or negative acceleration so that a valve lift speed at the portion of the valve corresponding to the ramp part is made generally constant.

IPC 1-7

F01L 1/08; F01L 13/00

IPC 8 full level

F01L 1/08 (2006.01); F01L 13/00 (2006.01)

CPC (source: EP US)

F01L 1/08 (2013.01 - EP US); F01L 13/0021 (2013.01 - EP US); F01L 13/0063 (2013.01 - EP US); F01L 2013/0068 (2013.01 - EP US); F01L 2305/00 (2020.05 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1666701 A1 20060607; EP 1666701 A4 20100407; CA 2537162 A1 20050303; JP 2005069014 A 20050317; US 2006207533 A1 20060921; WO 2005019607 A1 20050303

DOCDB simple family (application)

EP 04772152 A 20040825; CA 2537162 A 20040825; JP 2003208562 A 20030825; JP 2004012191 W 20040825; US 36346006 A 20060227