Global Patent Index - EP 1088981 A3

EP 1088981 A3 20020911 - Method to decrease the pressure in the common rail of an internal combustion engine

Title (en)

Method to decrease the pressure in the common rail of an internal combustion engine

Title (de)

Verfahren zum Abbau des Raildrucks in einem Common-Rail-System für Brennkraftmaschinen

Title (fr)

Méthode pour decroître la pression dans le rail d'alimentation d'un moteur à combustion

Publication

EP 1088981 A3 20020911 (DE)

Application

EP 00108928 A 20000427

Priority

DE 19946908 A 19990930

Abstract (en)

[origin: EP1088981A2] The rail pressure regulation method uses a pressure valve and an associated electronic control device, for controlling the valve in dependence on the difference between the required and actual rail pressure within the common-rail fuel injection system, with provision of variable hysteresis limits for the opening and closing of the pressure valve, at least one of which is dependent on the rail pressure.

IPC 1-7

F02D 41/38

IPC 8 full level

F02M 37/00 (2006.01); F02D 41/04 (2006.01); F02D 41/20 (2006.01); F02D 41/38 (2006.01)

CPC (source: EP)

F02D 41/3863 (2013.01); F02D 2250/31 (2013.01)

Citation (search report)

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 1088981 A2 20010404; EP 1088981 A3 20020911; DE 19946908 A1 20010405; JP 2001115884 A 20010424

DOCDB simple family (application)

EP 00108928 A 20000427; DE 19946908 A 19990930; JP 2000294586 A 20000927