EP 1629208 A1 20060301 - PROPORTIONAL PRESSURE CONTROL VALVE
Title (en)
PROPORTIONAL PRESSURE CONTROL VALVE
Title (de)
PROPORTIONAL-DRUCKREGELVENTIL
Title (fr)
SOUPAPE DE REGULATION DE PRESSION PROPORTIONNELLE
Publication
Application
Priority
- EP 2004003758 W 20040408
- DE 10325178 A 20030604
Abstract (en)
[origin: WO2004109124A1] The invention relates to a proportional pressure control valve comprising a valve housing (10) with at least three ports that conduct fluid, in particular in the form of a pump port (P), a utilisation port (A) and a tank port (T), a regulating piston (18) being configured to be displaced longitudinally in the valve housing (10) for the selective connection of the pump port (P) to the utilisation port (A), or of the utilisation port (A) to the tank port (T). Said piston is provided with a connection channel (24) for establishing a fluidic connection between the pump port (P) and a servo chamber (20) of a servo valve (22), the latter (22) being controlled by a magnetic system (28), in particular a proportional magnetic system. When the servo valve (22) is open, the fluidic path (58) that is partially guided through the valve housing (10) between the connection channel (24) and the tank port (T) is released, the latter having a simultaneous fluidic connection to the utilisation port (A).
IPC 1-7
IPC 8 full level
G05D 16/20 (2006.01)
CPC (source: EP US)
G05D 16/2024 (2018.12 - EP US); G05D 16/2097 (2018.12 - EP US); Y10T 137/86614 (2015.04 - EP US)
Citation (search report)
See references of WO 2004109124A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004109124 A1 20041216; DE 10325178 A1 20050105; EP 1629208 A1 20060301; JP 2006526740 A 20061124; US 2006054225 A1 20060316
DOCDB simple family (application)
EP 2004003758 W 20040408; DE 10325178 A 20030604; EP 04726462 A 20040408; JP 2006508146 A 20040408; US 54410505 A 20050802