Global Patent Index - EP 0775821 B1

EP 0775821 B1 2000-05-10 - Method and apparatus for injecting fuel in a reciprocating internal combustion engine

Title (en)

Method and apparatus for injecting fuel in a reciprocating internal combustion engine

Title (de)

Verfahren und Vorrichtung zum Einspritzen von Brennstoff bei einer Hubkolbenbrennkraftmaschine

Title (fr)

Procédé et dispositif d'injection de combustible dans un moteur à combustion interne à piston alternatif

Publication

EP 0775821 B1 (DE)

Application

EP 95810733 A

Priority

EP 95810733 A

Abstract (en)

[origin: EP0775821A1] The method involves opening the nozzles in a variable sequence. The total fuel quantity for a working cycle is injected via a single nozzle, esp. for partial engine loading. The injection valves are opened at different crankshaft angles and the sequence of opening is varied between successive operating cycles. The difference in crankshaft angles at which the valves are opened is at least 4 degrees. The injection process for all injection nozzles is terminated simultaneously. A sensor connected to a controller determines the crankshaft angle. Two controllable injection devices with nozzles or two directly driven nozzles can be used.

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

F02M 63/00; F02M 51/00

IPC 8 full level (invention and additional information)

F02M 61/14 (2006.01); F02M 51/00 (2006.01); F02M 59/08 (2006.01); F02M 63/00 (2006.01); F02M 63/02 (2006.01)

CPC (invention and additional information)

F02M 63/00 (2013.01); F02M 51/00 (2013.01); F02M 59/08 (2013.01)

Designated contracting state (EPC)

DE DK FR IT NL

EPO simple patent family

EP 0775821 A1 19970528; EP 0775821 B1 20000510; CN 1086017 C 20020605; CN 1156789 A 19970813; DE 59508329 D1 20000615; DK 0775821 T3 20000807; FI 108313 B 20011231; FI 964633 A0 19961120; FI 964633 A 19970525; JP 3896178 B2 20070322; JP H09170525 A 19970630; KR 100443036 B1 20041103

INPADOC legal status


2015-11-30 [REG DK EUP] PATENT EXPIRED

- Effective date: 20151124

2015-11-24 [REG DE R071] EXPIRY OF RIGHT

- Document: DE 59508329

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2011-08-19 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20110801

2011-06-15 [REG NL V1] LAPSED BECAUSE OF NON-PAYMENT OF THE ANNUAL FEE

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2001-05-02 [26N] NO OPPOSITION FILED

2000-08-18 [ET] FR: TRANSLATION FILED

2000-08-07 [REG DK T3] TRANSLATION OF EP PATENT

2000-07-10 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: ING. ZINI MARANESI & C. S.R.L.

2000-06-15 [REF] CORRESPONDS TO:

- Document: DE 59508329 20000615

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE DK FR IT NL

2000-02-02 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: WAERTSILAE NSD SCHWEIZ AG

1998-03-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19980114

1998-01-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19971030

1997-05-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE DK FR IT NL

1997-05-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LT;SI