Global Patent Index - EP 1030961 A1

EP 1030961 A1 2000-08-30 - DEVICE FOR ACTUATING A GAS EXCHANGE VALVE WITH AN ELECTROMAGNETIC ACTUATOR

Title (en)

DEVICE FOR ACTUATING A GAS EXCHANGE VALVE WITH AN ELECTROMAGNETIC ACTUATOR

Title (de)

VORRICHTUNG ZUM BETÄTIGEN EINES GASWECHSELVENTILS MIT EINEM ELEKTROMAGNETISCHEN AKTUATOR

Title (fr)

DISPOSITIF POUR ACTIONNER UNE SOUPAPE DE CHANGEMENT DES GAZ AU MOYEN D'UN ACTIONNEUR ELECTROMAGNETIQUE

Publication

EP 1030961 A1 (DE)

Application

EP 98965141 A

Priority

  • DE 19750228 A
  • EP 9806761 W

Abstract (en)

[origin: DE19750228C1] The invention relates to a device for actuating a gas exchange valve for internal combustion engines, comprising an electromagnetic actuator which is float-mounted in a cylinder head, which is supported on a play compensation element and which has an opening magnet and a closing magnet. An armature is located between the pole faces of said magnets in such a way that that it can be axially displaced in relation to the valve axis. The electromagnetic actuator acts upon a valve shaft either directly or by means of an armature tappet. The inventive device also comprises one pre-stressed valve spring which acts upon the gas exchange valve in the opening direction and one pre-stressed valve spring which acts upon the same in the closing direction. Said springs are arranged between the actuator and the gas exchange valve and are supported with one end on the valve shaft or the armature tappet, via a spring plate. The valve spring which acts in the direction of opening is supported with its free end on the actuator. According to the invention, the valve spring which acts in the direction of closing is supported with its free end directly or indirectly on the actuator.

IPC 1-7 (main, further and additional classification)

F01L 9/04

IPC 8 full level (invention and additional information)

F01L 1/22 (2006.01); F01L 1/245 (2006.01); F01L 9/04 (2006.01)

CPC (invention and additional information)

F01L 9/04 (2013.01); F01L 1/22 (2013.01); F01L 1/245 (2013.01)

Citation (search report)

See references of WO 9925960A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19750228 C1 19981203; BR 9814178 A 20000926; CN 1277655 A 20001220; EP 1030961 A1 20000830; JP 2001523787 A 20011127; US 6260522 B1 20010717; WO 9925960 A1 19990527

INPADOC legal status


2001-01-24 [18W] WITHDRAWN

- Date of withdrawal: 20001122

2000-08-30 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000302

2000-08-30 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT