Global Patent Index - EP 1832719 A4

EP 1832719 A4 20101013 - PHASE VARYING DEVICE OF ENGINE

Title (en)

PHASE VARYING DEVICE OF ENGINE

Title (de)

PHASENVERSCHIEBUNGSVORRICHTUNG FÜR MOTOR

Title (fr)

DISPOSITIF DE VARIATION DE PHASE DE MOTEUR

Publication

EP 1832719 A4 20101013 (EN)

Application

EP 05768419 A 20050802

Priority

  • JP 2005014071 W 20050802
  • JP 2004254659 A 20040901

Abstract (en)

[origin: EP1832719A1] [PROBLEMS] To prevent generation of heat by friction in a phase varying device of the engine of an automobile. [MEANS FOR SOLVING PROBLEMS] The phase varying device of an engine comprises an outer casing section (10) having a sprocket (12) for transmitting rotation of the crankshaft of the engine, an inner casing section (20) capable of rotating relatively to the outer casing section and coupled with a cam shaft (2) for opening/closing the intake valve or the exhaust valve of the engine, and an intermediate member (30) meshing with the outer casing section and the inner casing section through a helical spindle, wherein relative rotation is generated between the outer casing section and the inner casing section by moving the intermediate member in the axial direction thus varying the open/close timing of the intake valve or the exhaust valve. The phase varying device of an engine is further provided with an electromagnetic control means (40a) having a permanent-magnet rotary drum (44) being screwed on the intermediate member, and an electromagnetic clutch (42) for braking or accelerating the rotary drum.

IPC 8 full level

F01L 1/34 (2006.01)

CPC (source: EP KR US)

F01L 1/022 (2013.01 - EP US); F01L 1/34 (2013.01 - KR); F01L 1/34403 (2013.01 - EP US); F01L 2001/34483 (2013.01 - EP US); F01L 2001/3522 (2013.01 - EP US); F01L 2301/00 (2020.05 - EP US); F01L 2820/032 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

EP 1832719 A1 20070912; EP 1832719 A4 20101013; CN 1993538 A 20070704; JP WO2006025173 A1 20080508; KR 20070047284 A 20070504; US 2009260590 A1 20091022; WO 2006025173 A1 20060309

DOCDB simple family (application)

EP 05768419 A 20050802; CN 200580025954 A 20050802; JP 2005014071 W 20050802; JP 2006531469 A 20050802; KR 20077001161 A 20070117; US 57338605 A 20050802