EP 0092480 B1 19870121 - HYDRAULIC ACTUATOR
Title (en)
HYDRAULIC ACTUATOR
Publication
Application
Priority
FR 8206683 A 19820419
Abstract (en)
[origin: WO8303643A1] a) Hydraulic servo motor comprising a jack (1, 14) intended to be connected by its rod (31, 32, 151) to a moving member to be displaced and accurately positioned, said jack being completely filled with liquid; b) servo motor characterized in that the displacement of the piston (2) is implemented by direct liquid transfer from one chamber to the other chamber of the jack by at least one electric vibrator pump (6) supplied by an alternating current power source and in that a so-called electro valve (7), normally open when not in operation, is connected in order to make the two jack chambers communicate; c) the invention relates to hydraulic servo motors.
IPC 1-7
IPC 8 full level
F15B 11/08 (2006.01); F15B 7/00 (2006.01); F15B 11/12 (2006.01)
CPC (source: EP US)
F15B 7/006 (2013.01 - EP US); F15B 11/126 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI NL SE
DOCDB simple family (publication)
EP 0092480 A1 19831026; EP 0092480 B1 19870121; AT E25132 T1 19870215; AU 1470383 A 19831104; AU 559849 B2 19870319; DE 3369368 D1 19870226; DK 156310 B 19890731; DK 156310 C 19900226; DK 584783 A 19831219; DK 584783 D0 19831219; FI 80332 B 19900131; FI 80332 C 19900510; FI 834670 A0 19831219; FI 834670 A 19831219; FR 2525292 A1 19831021; FR 2525292 B1 19861219; JP H0357324 B2 19910830; JP S59500575 A 19840405; US 4642986 A 19870217; WO 8303643 A1 19831027
DOCDB simple family (application)
EP 83400756 A 19830418; AT 83400756 T 19830418; AU 1470383 A 19830418; DE 3369368 T 19830418; DK 584783 A 19831219; FI 834670 A 19831219; FR 8206683 A 19820419; FR 8300070 W 19830418; JP 50123583 A 19830418; US 56823483 A 19831213