Global Patent Index - EP 0914546 B1

EP 0914546 B1 2001-05-16 - VALVE DRIVE SYSTEM AND CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

Title (en)

VALVE DRIVE SYSTEM AND CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

Title (de)

VENTILTRIEB UND ZYLINDERKOPF EINER BRENNKRAFTMASCHINE

Title (fr)

MECANISME DE DISTRIBUTION ET CULASSE DE MOTEUR A COMBUSTION INTERNE

Publication

EP 0914546 B1 (DE)

Application

EP 97932761 A

Priority

  • DE 9701514 W
  • DE 19629349 A
  • DE 19640520 A

Abstract (en)

[origin: WO9803778A1] The invention concerns a valve drive system for an internal combustion engine, the valve drive system being provided between its at least one lifting valve (12) and its camshaft (34) in order to control the variable lift sequence. The valve drive system comprises a pressure-transmission arrangement which presses against the lifting valve (12), and a contact member (35) which abuts a cam (16) on the camshaft (34) and, as it changes position owing to the rotation of the cam (16), brings about an oscillating movement of the pressure-transmission arrangement. The pressure-transmission arrangement has a contact surface (80) via which pressure is transmitted. The contact surface (80), which can pivot about the bearing axis (14), comprises a first surface region (80.1) which has a circular-cylindrical curvature having the bearing axis (14) as the longitudinal axis of the cylinder, and a second surface region (80.2) which adjoins the first surface region (80.1) and has a non-circular-cylindrical curvature.

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

F01L 13/00; F01L 1/04; F01L 1/12

IPC 8 full level (invention and additional information)

F01L 1/04 (2006.01); F01L 1/053 (2006.01); F01L 1/12 (2006.01); F01L 13/00 (2006.01)

CPC (invention and additional information)

F01L 1/044 (2013.01); F01L 1/053 (2013.01); F01L 1/12 (2013.01); F01L 13/0015 (2013.01); F01L 13/0063 (2013.01); F01L 2013/0073 (2013.01); F01L 2820/01 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

WO 9803778 A1 19980129; DE 19640520 A1 19980409; DE 19780736 D2 19981001; EP 0914546 A1 19990512; EP 0914546 B1 20010516

INPADOC legal status


2005-07-18 [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: 20050718

2005-04-29 [REG FR ST] NOTIFICATION OF LAPSE

2005-03-31 [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: 20050331

2005-03-09 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20040718

2005-02-01 [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: 20050201

2004-07-18 [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: 20040718

2003-07-25 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20030725

- Year of fee payment: 7

2003-07-21 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20030721

- Year of fee payment: 7

2003-06-24 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20030624

- Year of fee payment: 7

2002-05-08 [26N] NO OPPOSITION FILED

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-11-30 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20011130

2001-11-02 [ET] FR: TRANSLATION FILED

2001-08-29 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20010802

2001-07-13 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: DE DOMINICIS & MAYER S.R.L.

2001-06-21 [REF] CORRESPONDS TO:

- Document: DE 59703557 20010621

2001-05-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE ES FR GB IT

2001-03-21 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE ES FR GB IT

2000-04-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990610

1999-07-28 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990610

1999-05-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990119

1999-05-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IT