Global Patent Index - EP 2049800 B1

EP 2049800 B1 20111228 - FEED PUMP

Title (en)

FEED PUMP

Title (de)

FÖRDERPUMPE

Title (fr)

POMPE DE CIRCULATION

Publication

EP 2049800 B1 20111228 (DE)

Application

EP 07786069 A 20070714

Priority

  • EP 2007006265 W 20070714
  • DE 102006039698 A 20060821
  • DE 202006015508 U 20061010

Abstract (en)

[origin: WO2008022672A1] The invention relates to a feed pump for hydraulic media, having an inlet (12) and an outlet (16), wherein a feed pressure is applied at the outlet, comprising a pressure reducing element (20) connected to the outlet, the pressure reducing element having a system pressure applied at the outlet (24) thereof and being connected to a consumer (26), wherein the outlet is connected to a first inlet (28) of a pump regulator (30), the second inlet (32) thereof being connected to the outlet of the pressure reducing element, and the pump regulator positioning the feed pump (10) in the direction of maximum feed if the system pressure (?2) is lower than a minimum pressure (46), or if the system pressure is lower than the feed pressure, and wherein a pressure limiter (34) is connected in parallel to the pump regulator such that at the first inlet (36) thereof the feed pressure is applied, and that at the control inlet (40) the system pressure is applied, wherein the pressure limiter opens if the feed pressure is greater than a target value (42).

IPC 8 full level

F04C 14/22 (2006.01)

CPC (source: EP)

F04B 49/002 (2013.01); F04B 49/08 (2013.01); F04C 14/226 (2013.01); F04C 2270/18 (2013.01); F04C 2270/21 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 2008022672 A1 20080228; EP 2049800 A1 20090422; EP 2049800 B1 20111228; JP 2010501762 A 20100121; JP 5209622 B2 20130612; KR 101229173 B1 20130201; KR 20090120019 A 20091124; US 2008279699 A1 20081113; US 7802971 B2 20100928

DOCDB simple family (application)

EP 2007006265 W 20070714; EP 07786069 A 20070714; JP 2009524911 A 20070714; KR 20077023798 A 20070714; US 84929307 A 20070902