EP 0433791 B1 19940406 - Actuator for a feeding valve.
Title (en)
Actuator for a feeding valve.
Title (de)
Antrieb für ein Speiseventil.
Title (fr)
Actuateur pour une valve d'alimentation.
Publication
Application
Priority
CH 457489 A 19891221
Abstract (en)
[origin: EP0433791A1] This drive for a supply valve has an operating line (1) and a device for controlling the pressure in the operating line (1). The device comprises three valves (2, 3, 4) which are connected to one another to form a hydraulic 2-of-3 circuit. <??>It is intended to create a drive for a supply valve, which is suitable for a comparatively high oil pressure and whose functional capability can be monitored by simple means. This is achieved by it being possible to apply pressure to a test system (14) via the device, and by it being possible to detect a pressure drop in the test system by means of a sensor. <IMAGE>
IPC 1-7
IPC 8 full level
F16K 31/122 (2006.01); F01D 17/26 (2006.01); F01D 21/18 (2006.01); F01D 21/20 (2006.01); G05B 9/00 (2006.01); G05D 16/00 (2006.01); G05D 16/10 (2006.01)
CPC (source: EP US)
F01D 17/26 (2013.01 - EP US); F01D 21/18 (2013.01 - EP US); F01D 21/20 (2013.01 - EP US); Y10T 137/8326 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0433791 A1 19910626; EP 0433791 B1 19940406; AT E104014 T1 19940415; CS 633590 A3 19920415; CZ 282934 B6 19971112; DE 59005267 D1 19940511; DK 0433791 T3 19951120; ES 2054201 T3 19940801; JP H04119272 A 19920420; RU 1838810 C 19930830; US 5143119 A 19920901
DOCDB simple family (application)
EP 90123496 A 19901207; AT 90123496 T 19901207; CS 633590 A 19901218; DE 59005267 T 19901207; DK 90123496 T 19901207; ES 90123496 T 19901207; JP 40261590 A 19901217; SU 4894008 A 19901220; US 62698390 A 19901213