EP 0822341 A2 19980204 - Oleo-pneumatic device for actuating electric switches
Title (en)
Oleo-pneumatic device for actuating electric switches
Title (de)
Oleopneumatische Betätigungsvorrichtung für elektrische Schalter
Title (fr)
Dispositif oléopneumatique pour actionner des mécanismes électriques
Publication
Application
Priority
IT MI961507 A 19960719
Abstract (en)
An oleo-pneumatic device for actuating electric switches which comprises: a cylinder (1) inside which a free piston (2) can slide so as to define a chamber (24) which contains a working fluid (24); a pump (20) for applying pressurized oil (21) to the piston (2) in order to compress the working fluid (24); control means for stopping the pump when the compressed fluid reaches a preset volume; and means for discharging the oil (21) towards a low-pressure circuit (BP) in order to quickly release any excess stored energy. The control means comprise a microswitch (5) for stopping the pump (20), whose position is a function of the temperature of the working fluid; the microswitch (5) cooperates with a profiled actuation element (6) driven by the compression movement of the piston (2). <IMAGE>
IPC 1-7
IPC 8 full level
F15B 1/033 (2006.01); H01H 33/30 (2006.01)
CPC (source: EP)
F15B 1/033 (2013.01); H01H 33/30 (2013.01)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 0822341 A2 19980204; EP 0822341 A3 19990407; IT 1283462 B1 19980421; IT MI961507 A0 19960719; IT MI961507 A1 19980119
DOCDB simple family (application)
EP 97111926 A 19970714; IT MI961507 A 19960719