EP 1276986 A1 20030122 - VALVE FOR REGULATING FLUIDS
Title (en)
VALVE FOR REGULATING FLUIDS
Title (de)
VENTIL ZUM STEUERN VON FLÜSSIGKEITEN
Title (fr)
SOUPAPE DE REGULATION DE FLUIDES
Publication
Application
Priority
- DE 0101056 W 20010320
- DE 10019766 A 20000420
Abstract (en)
[origin: WO0181755A1] The invention relates to a valve for regulating fluids comprising a piezoelectric unit (4) for actuating a valve member (3), to which a valve closing member (12) is allocated, said closing member separating a low-pressure area (16) at system pressure from a high-pressure area (17). The valve member (3) has at least a first piston (9) and a second piston (11), between which a hydraulic chamber is configured (13). A filling device (23) which can be connected to the high-pressure area (17) compensates leakage losses. Said filling device has at least one channel-type hollow chamber (24), in which a fixed body (25) that is surrounded by a gap is located in such a way that at one end (25A) of the fixed body (25) a conduit (26) which branches from the high-pressure area (17) opens into the hollow chamber (24) and that at the opposite end (25B) of the fixed body a leakage conduit (27) opens into said chamber and that a conduit (29), which leads to the hydraulic chamber (13), branches off from the longitudinal extension of the fixed body (25). The system pressure (p_sys) in the hydraulic chamber (13) can be regulated by the geometric fixation of the branch (28).
IPC 1-7
IPC 8 full level
F02M 51/00 (2006.01); F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01)
CPC (source: EP US)
F02M 47/027 (2013.01 - EP US); F02M 63/0026 (2013.01 - EP US); F02M 63/0036 (2013.01 - EP US); F02M 63/0045 (2013.01 - EP US); F02M 2200/705 (2013.01 - EP US)
Citation (search report)
See references of WO 0181755A1
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 0181755 A1 20011101; CZ 20014519 A3 20030312; DE 10019766 A1 20011031; EP 1276986 A1 20030122; JP 2003532003 A 20031028; US 2002139946 A1 20021003; US 6655605 B2 20031202
DOCDB simple family (application)
DE 0101056 W 20010320; CZ 20014519 A 20010320; DE 10019766 A 20000420; EP 01919220 A 20010320; JP 2001578812 A 20010320; US 1865702 A 20020311