EP 1342005 B1 20041222 - FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
Title (en)
FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
Title (de)
KRAFTSTOFFEINSPRITZSYSTEM FÜR BRENNKRAFTMASCHINEN
Title (fr)
SYSTEME D'INJECTION DE CARBURANT POUR MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0104531 W 20011205
- DE 10060811 A 20001207
Abstract (en)
[origin: WO0246602A1] The invention relates to a fuel injection system, comprising a fuel injection valve (15) and a control valve (50). Said control valve (50) has a control valve member (54) which is longitudinally displaceable in a control valve bore (52). A control valve sealing surface (55) is configured on the control valve member and interacts with a control valve seat, hereby controlling the connection between a first pressure chamber (57) and a second pressure chamber (58), said first pressure chamber (57) being connected to a high pressure accumulator chamber (10). A bore (30) is configured in a valve body (25), a piston-shaped valve needle (32) controlling the opening of at least one injection opening (38) in said bore with its combustion-side end, by performing a longitudinal movement under the influence of the pressure from a pressure chamber (31). Said pressure chamber (58) is connected to the second pressure chamber (58) by a delivery channel (28). The first pressure chamber (5) is connected by a throttle (72) to a damping chamber (70) which is otherwise closed, enabling the pressure oscillations that are produced when the control valve (50) closes to be dampened quickly.
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 55/04 (2006.01); F02M 59/00 (2006.01); F02M 59/46 (2006.01); F02M 61/00 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP US)
F02M 55/04 (2013.01 - EP US); F02M 61/16 (2013.01 - EP US); F02M 63/0007 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 2200/315 (2013.01 - EP US); F02M 2200/40 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT TR
DOCDB simple family (publication)
WO 0246602 A1 20020613; CN 100400852 C 20080709; CN 1396985 A 20030212; DE 10060811 A1 20020613; DE 50104913 D1 20050127; EP 1342005 A1 20030910; EP 1342005 B1 20041222; JP 2004515690 A 20040527; JP 4146229 B2 20080910; US 2003136382 A1 20030724; US 7066150 B2 20060627
DOCDB simple family (application)
DE 0104531 W 20011205; CN 01804442 A 20011205; DE 10060811 A 20001207; DE 50104913 T 20011205; EP 01999740 A 20011205; JP 2002548304 A 20011205; US 20321402 A 20021204