Global Patent Index - EP 1066457 A1

EP 1066457 A1 2001-01-10 - VARIABLE DISPLACEMENT DIESEL ENGINE

Title (en)

VARIABLE DISPLACEMENT DIESEL ENGINE

Title (de)

DIESELMOTOR MIT VERÄNDERLICHEN HUB

Title (fr)

MOTEUR DIESEL A CYLINDREE VARIABLE

Publication

EP 1066457 A1 (EN)

Application

EP 98913101 A

Priority

US 9805832 W

Abstract (en)

[origin: CA2324404A1] In accordance with the invention, the number of operative cylinders (1, 2, 3) of Diesel engines (10) is reduced under low load by shutting off fuel injectors (1I, 2I, 3I) and deactivating the intake valves (1Vi, 2Vi, 3Vi) and exhaust valves (1Ve, 2Ve, 3Ve) to selected cylinders (1I, 2I, 3I). The inactive cylinders are heated up by glow plugs (1GP, 2GP, 3GP) to a minimum temperature prior to being reactivated. A computer (7) controls the number of operative cylinders (1, 2, 3) according to load, and to alternate between operative cylinders to provide for even wear so that maintenance cost is minimized.

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

F02B 77/00; F02D 41/12; F02D 41/36; F02P 19/02

IPC 8 full level (invention and additional information)

F02D 45/00 (2006.01); F02B 3/08 (2006.01); F02B 77/00 (2006.01); F02D 17/02 (2006.01); F02D 41/00 (2006.01); F02D 41/12 (2006.01); F02D 41/36 (2006.01); F02P 19/02 (2006.01)

CPC (invention and additional information)

F02P 19/026 (2013.01); F02D 41/0087 (2013.01)

Designated contracting state (EPC)

DE GB SE

EPO simple patent family

AU 6773098 A 19991018; AU 763652 B2 20030731; CA 2324404 A1 19990930; EP 1066457 A1 20010110; EP 1066457 A4 20040728; JP 2002507690 A 20020312

INPADOC legal status


2007-04-25 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060826

2004-07-28 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20040616

2004-07-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7F 02B 77/00 A

2004-07-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7F 02D 41/36 B

2004-07-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7F 02D 41/12 B

2004-07-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7F 02P 19/02 B

2001-01-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000925

2001-01-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE GB SE