EP 0565552 B1 19950412 - NON-LEAKING STORAGE CHARGING VALVE.
Title (en)
NON-LEAKING STORAGE CHARGING VALVE.
Title (de)
LECKÖLFREIES SPEICHERLADEVENTIL.
Title (fr)
VANNE DE CHARGE A ACCUMULATION EXEMPTE D'HUILE DE FUITE.
Publication
Application
Priority
- DE 4100071 A 19910104
- EP 9200009 W 19920101
Abstract (en)
[origin: WO9212350A1] The invention relates to a storage charging valve which, for the connection of an inlet P supplying a hydraulic system (10) to an outlet T when an adjustable upper charging pressure in the hydraulic system (10) has been reached and for separating this connection when an adjustable lower charging pressure in the hydraulic system (10) has been reached, has a control piston (42) which cuts off the connection between inlet P and outlet T in one of its two switching positions and restores this connection in the other. A separating device makes it possible to cut off a control union B connecting the hydraulic system (10) to the storage charging valve from outlet T. When the adjustable upper charging pressure has been reached, the connection between the control union B and the outlet T which is a potential source of leaks can be closed by means of at least one sealing component of the separating device. This arrangement makes it possible to produce a completely non-leaking shut-off of the hydraulic system (10) inside the valve between the lower and upper charging pressures.
IPC 1-7
IPC 8 full level
F15B 1/02 (2006.01); F15B 1/027 (2006.01)
CPC (source: EP US)
F15B 1/0275 (2013.01 - EP US); Y10T 137/2625 (2015.04 - EP US)
Designated contracting state (EPC)
AT CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9212350 A1 19920723; AT E121168 T1 19950415; DE 4100071 A1 19920709; DE 59201918 D1 19950518; EP 0565552 A1 19931020; EP 0565552 B1 19950412; JP H06504355 A 19940519; US 5373865 A 19941220
DOCDB simple family (application)
EP 9200009 W 19920101; AT 92901393 T 19920101; DE 4100071 A 19910104; DE 59201918 T 19920101; EP 92901393 A 19920101; JP 50142092 A 19920101; US 8421593 A 19930823