EP 0086632 A2 19830824 - Control valve.
Title (en)
Control valve.
Title (de)
Hydraulisches Ventil.
Title (fr)
Soupape hydraulique.
Publication
Application
Priority
AU 266982 A 19820211
Abstract (en)
A control valve (1) for an hydraulic piston-cylinder assembly (28) having one port (10) connected to the cylinder (27) and another port (11) connectable into a circuit which controls relative movement between the cylinder (27) and piston (30). The two ports (10, 11) communicate through the body (2) of the valve (1) and a closure member (4) is movable between positions at which it opens ans closes that communication. A striker (21) associated with the piston-cylinder assembly (28) and responsive to relative movement thereof in one direction, is engagable with an abutment (22) of the closure member (4) so as to move that member (4) towards the valve closed position. As the closure member (4) approaches the closed position, a throttling portion (19) of that member (4) becomes operative to restrict fluid flow between the valve ports (10, 11) and thereby creates a pressure differential which acts across the closure member (4) to move that member (4) free of the influence of the striker (21) and into tne closed position. When the throttling portion (19) is inoperative, fluid pressure within the valve (1) tends to urge the closure member (4) towards the open position.
IPC 1-7
IPC 8 full level
F15B 13/02 (2006.01); F15B 15/20 (2006.01); F15B 15/24 (2006.01); F16K 37/00 (2006.01)
CPC (source: EP)
F15B 13/02 (2013.01); F15B 15/202 (2013.01); F15B 15/24 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
EP 0086632 A2 19830824; EP 0086632 A3 19840822; AU 1164083 A 19830818; JP S58191389 A 19831108
DOCDB simple family (application)
EP 83300678 A 19830210; AU 1164083 A 19820211; JP 2196283 A 19830212