EP 0295176 A1 19881214 - Pneumatically actuated valve and a hydropneumatic accumulator with such a valve.
Title (en)
Pneumatically actuated valve and a hydropneumatic accumulator with such a valve.
Title (de)
Pneumatisch gesteuertes Ventil und hydropneumatischer Druckspeicher mit einem derartigen Ventil.
Title (fr)
Clapet à commande pneumatique et accumulateur hydropneumatique équipé de ce clapet.
Publication
Application
Priority
FR 8708059 A 19870610
Abstract (en)
Pneumatic valve (1) and accumulator (25) equipped with this valve (1). The valve (1) comprises a small reservoir (2) containing a diaphragm (7) and a piston (9). The diaphragm (7) contains gas. When the pressure of the fluid filling a duct (6), here arranged at the outlet of an accumulator (25) topped with nitrogen, falls, the diaphragm (7) expands and pushes a head (11) of the piston (9) so as to obstruct the duct (6). The system is adjustable and reversible. General application to hydraulic or pneumatic circuits. <IMAGE>
IPC 1-7
IPC 8 full level
B67C 3/06 (2006.01); B67D 7/02 (2010.01); F15B 1/08 (2006.01); F15B 1/18 (2006.01)
CPC (source: EP)
B67C 3/06 (2013.01); B67D 7/0238 (2013.01); F15B 1/08 (2013.01); F15B 1/18 (2013.01); F15B 2201/205 (2013.01); F15B 2201/3152 (2013.01); F15B 2201/411 (2013.01); F15B 2201/4155 (2013.01)
Citation (search report)
[A] DE 3609534 C1 19870409 - INTEGRAL HYDRAULIK CO
Designated contracting state (EPC)
BE DE GB LU NL
DOCDB simple family (publication)
EP 0295176 A1 19881214; FR 2616509 A1 19881216; FR 2616509 B1 19890922
DOCDB simple family (application)
EP 88401367 A 19880606; FR 8708059 A 19870610