EP 1392962 A1 20040303 - FUEL INJECTION DEVICE WITH PRESSURE TRANSLATION DEVICE AND PRESSURE TRANSLATION DEVICE
Title (en)
FUEL INJECTION DEVICE WITH PRESSURE TRANSLATION DEVICE AND PRESSURE TRANSLATION DEVICE
Title (de)
KRAFTSTOFFEINSPRITZEINRICHTUNG MIT DRUCKÜBERSETZUNGSEINRICHTUNG UND DRUCKÜBERSETZUNGSEINRICHTUNG
Title (fr)
DISPOSITIF D'INJECTION DE CARBURANT COMPORTANT UN DISPOSITIF MULTIPLICATEUR DE PRESSION ET DISPOSITIF MULTIPLICATEUR DE PRESSION
Publication
Application
Priority
- DE 0201535 W 20020426
- DE 10123914 A 20010517
Abstract (en)
[origin: WO02092992A1] Disclosed is a fuel injection device for internal combustion engines, comprising a fuel injector which can be fed by a high-pressure fuel source. A pressure translation device provided with a moveable piston is mounted between the fuel injector and the high-pressure fuel source. The moveable piston separates a chamber which is adjacent to the high-pressure fuel source from a high-pressure chamber connected to the injector. The fuel pressure in the high-pressure chamber can be varied by filling the back chamber of the pressure translation device with fuel or by removing fuel from the back chamber. A valve (50,70) is provided with a valve body (51; 78) which is moveably arranged according to the fuel pressure prevailing in the back chamber (38), whereby the high-pressure chamber (40) can be connected (56, 53, 52; 76, 86, 88, 72) to the chamber (35) via said valve (50; 70). A suitable pressure translation device (30) is also disclosed.
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 57/02 (2006.01); F02M 59/10 (2006.01)
CPC (source: EP KR US)
F02M 47/02 (2013.01 - KR); F02M 47/027 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 57/026 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US)
Citation (search report)
See references of WO 02092992A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02092992 A1 20021121; DE 10123914 A1 20021128; DE 10123914 B4 20051020; DE 50208146 D1 20061026; EP 1392962 A1 20040303; EP 1392962 B1 20060913; JP 2004519610 A 20040702; KR 20030017633 A 20030303; US 2004025845 A1 20040212; US 7066147 B2 20060627
DOCDB simple family (application)
DE 0201535 W 20020426; DE 10123914 A 20010517; DE 50208146 T 20020426; EP 02742691 A 20020426; JP 2002590233 A 20020426; KR 20037000644 A 20030116; US 33307303 A 20030905