Global Patent Index - EP 1029156 A1

EP 1029156 A1 2000-08-23 - METHOD FOR CONTROLLING A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE

Title (en)

METHOD FOR CONTROLLING A GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE

Title (de)

VERFAHREN ZUR STEUERUNG EINES GASWECHSELVENTILS FÜR BRENNKRAFTMASCHINEN

Title (fr)

PROCEDE DE COMMANDE D'UNE VALVE D'ECHANGE GAZEUX DE MOTEURS A COMBUSTION INTERNE

Publication

EP 1029156 A1 (DE)

Application

EP 99913074 A

Priority

  • DE 9900424 W
  • DE 19826045 A

Abstract (en)

[origin: WO9966178A1] The invention relates to a method for controlling a gas exchange valve of an internal combustion engine comprising a mobile valve section (3). Said mobile valve section comprises, on its end which is closest to the combustion chamber, a sealing surface (7) through which it co-operates with a valve seat (9) for controlling an admission or exhaust section of the internal combustion engine combustion chamber. Said mobile valve section comprises, on its end remote from the combustion chamber, a piston (11) which defines at least one hydraulic working chamber (21). Alternate filling of said working chamber (21) with a hydraulic pressure medium and discharge of said chamber allow for the valve mobile section (3) to move in an opening direction or closing direction. The hydraulic pressure medium supply pressure applied to actuate the gas exchange valve mobile section (3) is controlled based on actual operating parameters of the internal combustion engine to supply.

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

F01L 9/02

IPC 8 full level (invention and additional information)

F01L 9/02 (2006.01); F02D 13/02 (2006.01)

CPC (invention and additional information)

F01L 9/02 (2013.01)

Citation (search report)

See references of WO 9966178A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9966178 A1 19991223; DE 19826045 A1 20000113; EP 1029156 A1 20000823; JP 2002518625 A 20020625; US 6321702 B1 20011127

INPADOC legal status


2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030604

2003-03-12 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030124

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000623

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB