Global Patent Index - EP 0971099 A1

EP 0971099 A1 2000-01-12 - Electro-pneumatic actuator for valve drive, especially for a gas exchange valve in an internal combustion engine

Title (en)

Electro-pneumatic actuator for valve drive, especially for a gas exchange valve in an internal combustion engine

Title (de)

Kombinierter elektromagnetischer/pneumatischer Aktuator zur Steuerung eines Hubventils, insbesondere Gaswechselventil einer Brennkraftmaschine

Title (fr)

Actuateur électro-pneumatique pour commander une soupape, en particulier une soupape d'échange de gaz dans un moteur à combustion interne

Publication

EP 0971099 A1 (DE)

Application

EP 99110275 A

Priority

DE 19829858 A

Abstract (en)

The actuator has an armature (4) with a drive connection to a valve shaft. (2') mounted to oscillate against diametrically acting pneumatic springs between switching magnets separated by the valve stroke distance. A piston (8) with a drive connection to the shaft divides a chamber (9) associated with the actuator into diametric vols. (10,11) for the air springs (6,7), which are controlled for emptying and filling by electromagnetic valves (13) in the form of electromagnetically controlled coaxial valves.

Abstract (de)

Für einen kombinierten elektromagnetischen/pneumatischen Aktuator zur Steuerung eines Hubventils, insbesondere Gaswechselventil einer Brennkraftmaschine, mit einem zwischen hubbeabstandet angeordneten Schaltmagneten vorgesehenen Anker, der zugleich als Kolben in einer Kammer diametrale Luftfedern voneinander trennt, wird zur Erzielung eines einfachen Aufbaus des Aktuators mit Ventilhub-Verstellung vorgeschlagen, daß zur Steuerung der Luftfedern vorgesehene Elektromagnetventile als elektromagnetisch gesteuerte Koaxialventile dienen. <IMAGE>

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

F01L 9/04; F01L 1/46

IPC 8 full level (invention and additional information)

F01L 1/46 (2006.01); F01L 9/04 (2006.01)

CPC (invention and additional information)

F01L 1/465 (2013.01); F01L 9/04 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 0971099 A1 20000112; EP 0971099 B1 20030820; DE 19829858 A1 20000113

INPADOC legal status


2009-08-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20080527

2009-06-30 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20080527

2009-04-30 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20081202

2009-04-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20080602

2009-02-27 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20090119

2009-01-28 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20080527

2008-04-30 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20070529

- Year of fee payment: 9

2008-01-02 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Payment date: 20070524

- Year of fee payment: 9

2007-11-24 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20070531

- Year of fee payment: 9

2007-06-26 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20070626

- Year of fee payment: 9

2004-08-11 [26N] NO OPPOSITION FILED

- Effective date: 20040524

2004-05-21 [ET] FR: TRANSLATION FILED

2003-09-25 [REF] CORRESPONDS TO:

- Document: DE 59906646 P 20030925

2003-09-10 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

2003-08-20 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): DE FR GB IT

2003-08-20 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2000-09-20 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB IT

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

- Effective date: 20000626

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT

2000-01-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI