Global Patent Index - EP 0086632 A3

EP 0086632 A3 19840822 - CONTROL VALVE

Title (en)

CONTROL VALVE

Publication

EP 0086632 A3 19840822 (EN)

Application

EP 83300678 A 19830210

Priority

AU 266982 A 19820211

Abstract (en)

[origin: EP0086632A2] 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

F15B 15/24

IPC 8 full level

F16K 37/00 (2006.01); F15B 13/02 (2006.01); F15B 15/20 (2006.01); F15B 15/24 (2006.01)

CPC (source: EP)

F15B 13/02 (2013.01); F15B 15/202 (2013.01); F15B 15/24 (2013.01)

Citation (search report)

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