Global Patent Index - EP 1276984 A2

EP 1276984 A2 20030122 - VALVE FOR CONTROLLING THE FLOW OF FLUIDS

Title (en)

VALVE FOR CONTROLLING THE FLOW OF FLUIDS

Title (de)

VENTIL ZUM STEUERN VON FLÜSSIGKEITEN

Title (fr)

VANNE DE COMMANDE DE LIQUIDES

Publication

EP 1276984 A2 20030122 (DE)

Application

EP 01913616 A 20010213

Priority

  • DE 0100534 W 20010213
  • DE 10019764 A 20000420

Abstract (en)

[origin: WO0181752A2] The invention relates to a valve for controlling the flow of fluids. Said valve comprises an actuator unit (4) for actuating a valve element (3), which has a first plunger (9) and a second plunger (11) that is separated therefrom by a hydraulic chamber (13), and which actuates a valve closing element (12) that separates a low pressure area (16) with system pressure from a high pressure area (17). A filling device (24), which has a cavity (25) and which can be connected to the high pressure area (17), is provided for compensating for leakage. A flow restrictor (26) is arranged in said cavity in such a manner that a line (33) leading to the high pressure area (17) opens into the cavity (25) at one end of the flow restrictor (26), and a system pressure line (28) leading to the hydraulic chamber (13) branches off at the other end of the flow restrictor (26). The system pressure is built up, according to a pressure existing in the high pressure area, due to the geometric determination of a flow restricting borehole (27) located in the flow restrictor (26) and of the dimensions of the plunger (9), along which the system pressure (p_sys) is reduced. Alternatively, a second flow restrictor (32) having a flow restricting borehole (34) can be provided in the cavity (25). Said second flow restrictor (32) is connected upstream from a leakage line (35), which branches off from the cavity (25), and the system pressure is reduced along the second flow restrictor.

IPC 1-7

F02M 59/46; F02M 47/02

IPC 8 full level

F02M 47/00 (2006.01); F02M 47/02 (2006.01); F02M 51/00 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01)

CPC (source: EP KR US)

F02M 47/027 (2013.01 - EP US); F02M 51/00 (2013.01 - KR); F02M 63/0026 (2013.01 - EP US); F02M 63/0036 (2013.01 - EP US); F02M 2200/705 (2013.01 - EP US)

Citation (search report)

See references of WO 0181752A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0181752 A2 20011101; WO 0181752 A3 20020328; CZ 20014521 A3 20030416; DE 10019764 A1 20011031; DE 10019764 B4 20040923; EP 1276984 A2 20030122; HU 0202459 A2 20021228; JP 2003532001 A 20031028; KR 20020023239 A 20020328; US 2003098428 A1 20030529; US 6698711 B2 20040302

DOCDB simple family (application)

DE 0100534 W 20010213; CZ 20014521 A 20010213; DE 10019764 A 20000420; EP 01913616 A 20010213; HU 0202459 A 20010213; JP 2001578810 A 20010213; KR 20017016301 A 20011219; US 1852302 A 20020222