EP 1135594 A1 20010926 - VALVE FOR CONTROLLING LIQUIDS
Title (en)
VALVE FOR CONTROLLING LIQUIDS
Title (de)
VENTIL ZUM STEUERN VON FLÜSSIGKEITEN
Title (fr)
SOUPAPE POUR COMMANDER LE PASSAGE DE FLUIDES
Publication
Application
Priority
- DE 0003200 W 20000914
- DE 19946840 A 19990930
Abstract (en)
[origin: WO0123744A1] The invention relates to a valve for controlling liquids said valve having a piezoelectric actuator (3) for operating a valve member (2) which at one end has a valve closing member forming a valve head (7) cooperating with a seat (8) mounted on a valve body (6) for opening and closing the valve (1). A hydraulic chamber (21) is provided on the side of the piezoelectric actuator (3) opposite the valve member (2) which is connected via at least one hydraulic line (23) to a bore (5) of said valve member (2) that is sealed in comparison with said piezoelectric actuator (3) and can be dipped into a cylinder (20) connected to said piezoelectric actuator (3). The hydraulic chamber (21) is formed as a hydraulic spring. The spring force acting on the cylinder (20) connected to the piezoelectric actuator (3) creates a prestress element and a tolerance compensation element. Said valve is in particular provided as a component of a fuel injection valve.
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02M 45/04 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 59/46 (2006.01); F02M 61/16 (2006.01); F02M 61/20 (2006.01); F16K 31/02 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); Y10S 137/906 (2013.01 - EP US)
Citation (search report)
See references of WO 0123744A1
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)
WO 0123744 A1 20010405; AT E283973 T1 20041215; CZ 20011881 A3 20020417; DE 19946840 A1 20010503; DE 50008830 D1 20050105; EP 1135594 A1 20010926; EP 1135594 B1 20041201; JP 2003510507 A 20030318; KR 20010101060 A 20011114; US 6502803 B1 20030107
DOCDB simple family (application)
DE 0003200 W 20000914; AT 00974319 T 20000914; CZ 20011881 A 20000914; DE 19946840 A 19990930; DE 50008830 T 20000914; EP 00974319 A 20000914; JP 2001527102 A 20000914; KR 20017006491 A 20010524; US 85683701 A 20010525