EP 0012743 A1 19800625 - Piezoelectric control valve.
Title (en)
Piezoelectric control valve.
Title (de)
Piezo-elektrisches Steuerventil.
Title (fr)
Soupape de commande piézo-électrique.
Publication
Application
Priority
US 97076478 A 19781218
Abstract (en)
A piezoelectric fluid control valve comprises a jet pipe (14) whose position in one axis is controlled by a piezoelectric actuator (22) mechanically connected to the jet pipe (14). The fluid output from the jet pipe nozzle (16) is normally positioned between a pair of control ports (28, 30) whereby fluid divides evenly between the ports. Energizaton of the piezoelectric actuator (22) by applying a voltage thereto moves the jet pipe (14) thereby increasing the pressure at one port and decreasing the pressure at the other port.
IPC 1-7
IPC 8 full level
F15B 13/043 (2006.01); F15B 13/044 (2006.01)
CPC (source: EP)
F15B 13/0436 (2013.01)
Citation (search report)
- US 3286719 A 19661122 - MYERS RICHARD H
- GB 1205746 A 19700916 - DUNLOP CO LTD [GB]
- US 3939857 A 19760224 - BERNAERTS HENRY J
- DE 2511752 A1 19761007 - VER FLUGTECHNISCHE WERKE
- MACHINE DESIGN, Vol. 43, No. 2, January 21, 1971, Cleveland US "Flapping crystal generates fluidic signals", page 93. * Entirely *
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0012743 A1 19800625; CA 1115172 A 19811229; IL 58598 A0 19800229; JP S5582802 A 19800621
DOCDB simple family (application)
EP 79930028 A 19791120; CA 339065 A 19791102; IL 5859879 A 19791101; JP 15495979 A 19791128