EP 1137884 A1 20011004 - FERROELECTRIC PUMP
Title (en)
FERROELECTRIC PUMP
Title (de)
FERROELEKTRISCHE PUMPE
Title (fr)
POMPE FERROELECTRIQUE
Publication
Application
Priority
US 9826389 W 19981211
Abstract (en)
[origin: WO0036302A1] A ferroelectric pump has one or more variable volume pumping chambers internal to a housing. Each chamber has at least one wall comprising a dome shaped internally prestressed ferroelectric actuator having a curvature and a dome height that varies with an electric voltage applied between an inside and outside surface of the actuator. A pumped medium flows into and out of each pumping chamber in response to displacement of the ferroelectric actuator. The ferroelectric actuator is mounted within each wall and isolates each ferroelectric actuator from the pumped medium, supplies a path for voltage to be applied to each ferroelectric actuator, and provides for positive containment of each ferroelectric actuator while allowing displacement of the entirety of each ferroelectric actuator in response to the applied voltage.
IPC 1-7
IPC 8 full level
F04B 43/00 (2006.01); F04B 43/02 (2006.01); F04B 43/04 (2006.01); F04B 45/047 (2006.01)
CPC (source: EP KR US)
F04B 43/0054 (2013.01 - EP KR); F04B 43/04 (2013.01 - EP KR US); F04B 45/047 (2013.01 - EP KR US); F04B 53/10 (2013.01 - KR); F04B 53/16 (2013.01 - KR)
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 0036302 A1 20000622; AU 2199599 A 20000703; CA 2354076 A1 20000622; CN 1338031 A 20020227; EP 1137884 A1 20011004; JP 2002532655 A 20021002; KR 20010108015 A 20011207; NO 20012845 D0 20010608; NO 20012845 L 20010807
DOCDB simple family (application)
US 9826389 W 19981211; AU 2199599 A 19981211; CA 2354076 A 19981211; CN 98814353 A 19981211; EP 98965990 A 19981211; JP 2000588515 A 19981211; KR 20017007298 A 20010611; NO 20012845 A 20010608