Global Patent Index - EP 1320676 A1

EP 1320676 A1 2003-06-25 - TWO-STEP ELECTRIC-MOTOR DRIVEN ACTUATOR FOR A VALVE

Title (en)

TWO-STEP ELECTRIC-MOTOR DRIVEN ACTUATOR FOR A VALVE

Title (de)

ZWEISTUFIGER ELEKTROMOTORISCHER STELLANTRIEB FÜR EIN VENTIL

Title (fr)

VERIN DE COMMANDE ELECTROMOTEUR A DEUX ETAPES, DESTINE A UNE SOUPAPE

Publication

EP 1320676 A1 (DE)

Application

EP 01960724 A

Priority

  • DE 10044898 A
  • EP 0110217 W

Abstract (en)

[origin: WO0223032A1] The invention relates to an exhaust gas recirculation valve (1) for a combustion engine comprising an actuating device (7) with a control unit formed by a valve shaft (8). An electric-motor driven screw drive mechanism (9) is connected to the control unit (8) for positioning the control unit over a long path with a reduced adjusting force, in addition to an electrical lift actuator (10) with a small adjustment path and a large adjusting force. Said actuators (9, 10) can be dimensioned according to the different operational requirements. According to the force required in the valve adjustment path, the lift actuator can be used with a high adjusting force and a short path for high opening forces and the screw drive mechanism (9) can be used for an exact positioning movement over a long lift path (10).

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

F02M 25/07; F16K 31/04; F16K 31/06; F16K 31/50

IPC 8 full level (invention and additional information)

F02M 26/50 (2016.01); F02M 26/54 (2016.01); F02M 26/67 (2016.01); F16K 31/04 (2006.01); F16K 31/06 (2006.01)

CPC (invention and additional information)

F16K 31/0655 (2013.01); F02M 26/50 (2016.02); F02M 26/54 (2016.02); F02M 26/67 (2016.02); F16K 31/04 (2013.01); F02M 26/48 (2016.02)

Citation (search report)

See references of WO 0223032A1

Designated contracting state (EPC)

DE FR IT

EPO simple patent family

WO 0223032 A1 20020321; DE 10044898 A1 20020425; EP 1320676 A1 20030625

INPADOC legal status


2006-07-05 [18W] APPLICATION WITHDRAWN

- Effective date: 20060526

2005-07-20 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050602

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR IT

2003-06-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030410

2003-06-25 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR