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: US6502803B1] A valve for controlling fluids is embodied with a piezoelectric actuator (3) for actuating a valve member (2) that on one end has a valve head (7), forming a valve closing member, that cooperates with a seat (8) provided on the valve body (6) for opening and closing the valve (1). On a side of the piezoelectric actuator (3) remote from the valve member (2), a hydraulic chamber (21) is provided, which communicates, via at least one hydraulic line (23), with a bore (5) of the valve member (2) that is sealed from the piezoelectric actuator (3), and into which bore a piston (20) connected to the piezoelectric actuator (3) can plunge; the hydraulic chamber (21) is embodied as a hydraulic spring, which with its spring force on the piston (20) connected to the piezoelectric actuator (3) act as the prestressing element and the tolerance compensating element. The valve is intended in particular 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)
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