EP 1400676 B1 20091216 - Injector system
Title (en)
Injector system
Title (de)
Treiberschaltung für eine Kraftstoff-Einspritzdüse
Title (fr)
Circuit de commande pour injecteur de carburant
Publication
Application
Priority
- US 25223702 A 20020923
- US 40371303 A 20030331
Abstract (en)
[origin: EP1400677A2] An injector system includes at least first and second injectors (22a, 22b), preferably of the piezoelectric type, and an injector drive control circuit. The drive control circuit (24) comprises select switch means (S1, S2) for controlling independent selection of the first or second injector (22a, 22b) to permit a discharging current to be supplied to the selected injector during a discharging mode so as to initiate an injection event, and charge/discharge switch means (Q1, Q2) for controlling whether the discharging current is supplied to the selected injector (22a, 22b) or whether a charging current is supplied to the selected injector during a charging mode so as to terminate the injection event. The first and second injectors (22a, 22b) are arranged electrically in parallel and operatively connected to the select and charge/discharge switch means (S1, S2, Q1, Q2) so that activation of the charge/discharge switch means to terminate the injection event results in respective voltages across the first and second injectors tending to equalise.
IPC 8 full level
F02D 41/20 (2006.01); H10N 30/80 (2023.01)
CPC (source: EP)
F02D 41/2096 (2013.01); F02D 2041/2051 (2013.01); F02D 2041/2058 (2013.01); F02D 2041/2072 (2013.01); F02D 2041/2082 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1400677 A2 20040324; EP 1400677 A3 20060322; EP 1400677 B1 20091118; EP 1400676 A2 20040324; EP 1400676 A3 20060322; EP 1400676 B1 20091216
DOCDB simple family (application)
EP 03255969 A 20030923; EP 03255966 A 20030923