EP 1210516 A1 20020605 - INJECTION SYSTEM AND METHOD FOR OPERATING AN INJECTION SYSTEM
Title (en)
INJECTION SYSTEM AND METHOD FOR OPERATING AN INJECTION SYSTEM
Title (de)
EINSPRITZSYSTEM UND VERFAHREN ZUM BETREIBEN EINES EINSPRITZSYSTEMS
Title (fr)
SYSTEME D'INJECTION ET PROCEDE PERMETTANT DE FAIRE FONCTIONNER UN SYSTEME D'INJECTION
Publication
Application
Priority
- DE 0002680 W 20000810
- DE 19939520 A 19990820
Abstract (en)
[origin: US6588678B1] The invention relates to an injection system having a piezoelectric adjuster (10), a hydraulic booster (12) and a control valve (14). In continuous operation of the injection system, the stroke of the piezoelectric adjuster (10) can be transmitted to the control valve (14) via a hydraulic medium in the hydraulic booster (12). In addition, the piezoelectric adjuster (10) and the components of the hydraulic booster (12) are disposed relative to the control valve (14) such that at least a portion of the stroke of the piezoelectric adjuster (10) can be transmitted directly to the control valve (14). In the method according to the invention for operating a piezoelectric injector, in which the piezoelectric adjuster (10) is electrically excited and made to execute a stroke; in a first phase, the stroke is transmitted directly to a control valve (14); in a second phase, the stroke is transmitted hydraulically to a control valve (14); and the control valve (14) is opened by the stroke.
IPC 1-7
IPC 8 full level
F02D 41/20 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 55/02 (2006.01); F02M 59/46 (2006.01); F02B 3/06 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP KR US)
F02D 41/2096 (2013.01 - EP US); F02M 47/027 (2013.01 - EP US); F02M 59/46 (2013.01 - KR); F02M 63/0026 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02M 2200/701 (2013.01 - EP US); F02M 2200/703 (2013.01 - EP US)
Citation (search report)
See references of WO 0114734A1
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)
US 6588678 B1 20030708; AT E281599 T1 20041115; CZ 2002609 A3 20030618; DE 19939520 A1 20010301; DE 19939520 C2 20010607; DE 50008530 D1 20041209; EP 1210516 A1 20020605; EP 1210516 B1 20041103; JP 2003507654 A 20030225; KR 20020023422 A 20020328; WO 0114734 A1 20010301
DOCDB simple family (application)
US 4994302 A 20020612; AT 00956132 T 20000810; CZ 2002609 A 20000810; DE 0002680 W 20000810; DE 19939520 A 19990820; DE 50008530 T 20000810; EP 00956132 A 20000810; JP 2001518582 A 20000810; KR 20027002131 A 20020219