EP 0983442 A1 20000308 - MANUALLY OPERATED EMERGENCY CONTROL ACTUATION DEVICE
Title (en)
MANUALLY OPERATED EMERGENCY CONTROL ACTUATION DEVICE
Title (de)
BETÄTIGUNGSVORRICHTUNG MIT NOTHANDBETÄTIGUNG
Title (fr)
DISPOSITIF D'ACTIONNEMENT A COMMANDE MANUELLE D'URGENCE
Publication
Application
Priority
- DE 19721404 A 19970522
- EP 9801616 W 19980319
Abstract (en)
[origin: DE19721404A1] The invention relates to an actuation device for a hydraulically controlled actuator (10), specially for the emergency operation thereof, comprising a housing (14) with a fluid container (16) which can be connected to the actuator (10) via a connection point (18) and to a hydraulic supply circuit (22) of said actuator (10) via another connection point (20). A separating piston (26) is guided lengthwise inside the fluid container (16) via a manually operated adjusting device (24). Said piston has a control device (28) for the through-opening (30) joining the connection points (18, 20) to each other. The inventive device provides an economical and simple way of reliably controlling and monitoring the hydraulically controlled actuator in case of malfunction by virtue of the fact that the adjusting device (24) is an adjustment screw (32) which can be screwed or unscrewed on the housing, the screwing path of which is chosen in such a way that the cooperating separating piston (26) can be displaced between two end positions (A, B) and that the through-opening (30) of the separating piston (26) has a flap valve (34) which is opened in either end position (A, B) and is closed in the corresponding opposite-lying end position (B, A).
IPC 1-7
IPC 8 full level
F15B 13/10 (2006.01); F15B 20/00 (2006.01)
CPC (source: EP US)
F15B 13/10 (2013.01 - EP US); F15B 20/004 (2013.01 - EP US)
Citation (search report)
See references of WO 9853213A1
Designated contracting state (EPC)
AT CH DE FR GB IT LI SE
DOCDB simple family (publication)
DE 19721404 A1 19981126; DE 19721404 C2 19990722; AT 230072 T 20030115; DE 59806731 D1 20030130; EP 0983442 A1 20000308; EP 0983442 B1 20021218; JP 2001525912 A 20011211; JP 4098370 B2 20080611; US 6220142 B1 20010424; WO 9853213 A1 19981126
DOCDB simple family (application)
DE 19721404 A 19970522; AT 98919119 T 19980319; DE 59806731 T 19980319; EP 9801616 W 19980319; EP 98919119 A 19980319; JP 54984098 A 19980319; US 29704999 A 19990428