Global Patent Index - EP 1521930 A1

EP 1521930 A1 20050413 - PRESSURE-RELIEF VALVE

Title (en)

PRESSURE-RELIEF VALVE

Title (de)

DRUCKENTLASTUNGSVENTIL

Title (fr)

SOUPAPE DE DECOMPRESSION

Publication

EP 1521930 A1 20050413 (DE)

Application

EP 03714673 A 20030303

Priority

  • DE 0300690 W 20030303
  • DE 10231135 A 20020710

Abstract (en)

[origin: WO2004008010A1] The invention relates to a pressure-relief valve comprising a closing element (4), which can be displaced axially in an opening direction (3) in a bore, against the force of a closing spring (13) that acts in a closing direction (26). The inventive valve is characterised in that when the pressure-relief valve is closed, the closing element (4) lies against a valve seat (5), closing an inlet (7) and that a piston (8), which is connected to the closing element (4) by means of a connecting element (9) and which can be displaced axially in the inlet (7), is integrated into the inlet (7).

IPC 1-7

F16K 17/04; F02M 59/46

IPC 8 full level

F02M 37/00 (2006.01); F02M 59/46 (2006.01); F02M 63/02 (2006.01); F02M 69/00 (2006.01); F16K 17/04 (2006.01); F16K 17/06 (2006.01); F16K 31/06 (2006.01)

CPC (source: EP US)

F02M 63/0036 (2013.01 - EP US); F02M 63/0052 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F02M 63/025 (2013.01 - EP US); F16K 17/0406 (2013.01 - EP US); Y10T 137/7928 (2015.04 - EP US)

Citation (search report)

See references of WO 2004008010A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 2004008010 A1 20040122; DE 10231135 A1 20040129; EP 1521930 A1 20050413; JP 2005532501 A 20051027; US 2005076955 A1 20050414

DOCDB simple family (application)

DE 0300690 W 20030303; DE 10231135 A 20020710; EP 03714673 A 20030303; JP 2004520293 A 20030303; US 48847104 A 20040303