EP 1024274 A3 20020327 - Accumulation-type fuel injection system and accumulation chamber pressure control method therefor
Title (en)
Accumulation-type fuel injection system and accumulation chamber pressure control method therefor
Title (de)
Speicherkraftstoffeinspritzsystem und Verfahren zur Regelung des Kraftstoffdruckes dafür
Title (fr)
Dispositif d'injection de combustible à accumulateur et méthode de commande de pression associé
Publication
Application
Priority
- JP 1992499 A 19990128
- JP 20447099 A 19990719
Abstract (en)
[origin: EP1024274A2] A spill control valve such as an electromagnetic valve (1a) of an injector (1) is ineffectively driven to open for a period (Tq) shorter than a delay period (tm) by which a nozzle needle (37) opens, when a pressure reducing condition to reduce fuel pressure in a common rail (3) is satisfied. A temperature of an injector driving circuit (79) in an ECU (7) is estimated from a coolant temperature detected by a coolant temperature sensor (71). A cycle period of an ineffective driving is determined from the estimated temperature so that a thermal load applied to the injector driving circuit does not exceed a limit. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 37/00 (2006.01); F02D 41/04 (2006.01); F02D 41/20 (2006.01); F02D 41/38 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 55/02 (2006.01); F02M 63/02 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02D 41/20 (2013.01); F02D 41/3872 (2013.01); F02M 47/027 (2013.01); F02M 63/0225 (2013.01); F02D 2041/2065 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/31 (2013.01); F02M 2200/21 (2013.01)
Citation (search report)
- [PX] DE 19857260 A1 19990617 - DENSO CORP [JP]
- [A] US 5711274 A 19980127 - DRUMMER EUGEN [AT]
- [A] US 5148987 A 19920922 - TAUE JUN [JP]
- [A] US 5090381 A 19920225 - TANABE YOSHIYUKI [JP]
- [A] HOFFMANN K-H ET AL: "DAS COMMON-RAIL-EINSPRITZSYSTEM-EIN NEUES KAPITEL DER DIESELEINSPRITZTECHNIK", MTZ MOTORTECHNISCHE ZEITSCHRIFT, FRANCKH'SCHE VERLAGSHANDLUNG,ABTEILUNG TECHNIK. STUTTGART, DE, vol. 58, no. 10, 1 October 1997 (1997-10-01), pages 572 - 582, XP000720118, ISSN: 0024-8525
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1024274 A2 20000802; EP 1024274 A3 20020327; EP 1024274 B1 20040324; DE 60009180 D1 20040429; DE 60009180 T2 20050120; JP 2000282998 A 20001010; JP 3458776 B2 20031020
DOCDB simple family (application)
EP 00100432 A 20000110; DE 60009180 T 20000110; JP 20447099 A 19990719