Global Patent Index - EP 1511931 B1

EP 1511931 B1 20070221 - HIGH-PRESSURE FLUID INJECTION CIRCUIT

Title (en)

HIGH-PRESSURE FLUID INJECTION CIRCUIT

Title (de)

HOCHDRUCKFLUIDENEINSPRITZSYSTEM

Title (fr)

CIRCUIT D INJECTION DE FLUIDE A HAUTE PRESSION

Publication

EP 1511931 B1 20070221 (FR)

Application

EP 03735460 A 20030526

Priority

  • EP 0305482 W 20030526
  • IT TO20020453 A 20020529

Abstract (en)

[origin: WO03100245A1] A fluid capable of generating pressure waves circulates inside a high-pressure fluid circuit. Said pressure waves can generate pressure peaks which can damage the high-pressure fluid circuit. According to the invention, a pressure wave attenuator (14) comprising a cylinder, a rod (22) and several plates (24) is provided in order to reduce the pressure waves and the pressure peaks. The plates (23) are disposed and embodied in such a way that a narrow passage inside the cylinder is permitted thereby. The narrow passage modifies the regular movement of fluid into an irregular movement of fluid, reducing the pressure peaks by 50 % of their initial value.

IPC 8 full level

F02M 37/00 (2006.01); F02M 57/02 (2006.01); F02M 55/02 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP KR US)

F02M 37/00 (2013.01 - KR); F02M 37/0041 (2013.01 - EP US); F02M 55/00 (2013.01 - KR); F02M 57/025 (2013.01 - EP US); F02M 2200/31 (2013.01 - EP US)

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 PT RO SE SI SK TR

DOCDB simple family (publication)

WO 03100245 A1 20031204; AT E354727 T1 20070315; AU 2003237680 A1 20031212; BR 0305021 A 20041109; CN 100366887 C 20080206; CN 1666019 A 20050907; DE 60311987 D1 20070405; DE 60311987 T2 20071031; EP 1511931 A1 20050309; EP 1511931 B1 20070221; ES 2280757 T3 20070916; IT TO20020453 A0 20020529; IT TO20020453 A1 20031201; JP 2005527738 A 20050915; KR 100973177 B1 20100730; KR 20050020966 A 20050304; RU 2004139023 A 20060220; US 2005224052 A1 20051013

DOCDB simple family (application)

EP 0305482 W 20030526; AT 03735460 T 20030526; AU 2003237680 A 20030526; BR 0305021 A 20030526; CN 03815416 A 20030526; DE 60311987 T 20030526; EP 03735460 A 20030526; ES 03735460 T 20030526; IT TO20020453 A 20020529; JP 2004507674 A 20030526; KR 20047019348 A 20030526; RU 2004139023 A 20030526; US 51622604 A 20041129