Global Patent Index - EP 1049867 A1

EP 1049867 A1 2000-11-08 - FLAT PIPE PRESSURE DAMPER FOR DAMPING OSCILLATIONS IN LIQUID PRESSURE IN PIPES CARRYING LIQUIDS

Title (en)

FLAT PIPE PRESSURE DAMPER FOR DAMPING OSCILLATIONS IN LIQUID PRESSURE IN PIPES CARRYING LIQUIDS

Title (de)

FLACHROHRDRUCKDÄMPFER ZUR DÄMPFUNG VON FLÜSSIGKEITS-DRUCKSCHWINGUNGEN IN FLÜSSIGKEITSLEITUNGEN

Title (fr)

AMORTISSEUR DE PRESSION SOUS FORME DE TUYAU PLAT SERVANT A AMORTIR LES OSCILLATIONS DUES A LA PRESSION DANS DES LIQUIDES CIRCULANT DANS DES CONDUITS

Publication

EP 1049867 A1 (DE)

Application

EP 99936318 A

Priority

  • DE 9901544 W
  • DE 19854551 A

Abstract (en)

[origin: DE19854551A1] The invention relates to a flat pipe pressure damper (1) for damping oscillations in liquid pressure in pipes that carry liquids, especially oscillations in fuel pressure in fuel supply lines (5) in motor vehicles. The inventive damper comprises at least one chamber (24), whereby at least one part of the chamber wall that interacts with the liquid can be elastically deformed as a result of the oscillations in the pressure of said liquid. According to the invention, one part of the chamber (24) is filled with liquid.

IPC 1-7 (main, further and additional classification)

F02M 37/00; F02M 55/04; F02M 69/46

IPC 8 full level (invention and additional information)

F02M 37/00 (2006.01); F02M 55/00 (2006.01); F02M 55/02 (2006.01); F02M 55/04 (2006.01); F02M 69/46 (2006.01)

CPC (invention and additional information)

F02M 37/0041 (2013.01); F02M 55/04 (2013.01); F02M 69/465 (2013.01); F02M 37/0047 (2013.01)

Citation (search report)

See references of WO 0032924A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19854551 A1 20000531; CN 1288504 A 20010321; EP 1049867 A1 20001108; JP 2002531749 A 20020924; US 6443131 B1 20020903; WO 0032924 A1 20000608

INPADOC legal status


2002-03-06 [18W] WITHDRAWN

- Date of withdrawal: 20020103

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001208

2000-11-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT