EP 1267077 B1 20080227 - Gear pump with three shafts
Title (en)
Gear pump with three shafts
Title (de)
Zahnradpumpe mit drei Wellen
Title (fr)
Pompe volumétrique à double engrenage
Publication
Application
Priority
FR 0107834 A 20010615
Abstract (en)
[origin: EP1267077A1] The double-mesh pump has three gears forming two inlet chambers (7) and two pressure chambers (6), a central feed pipe (9) connected to two inlet ducts (11, 12) leading to the inlet chambers, and a central pressure pipe connecting two pressure ducts (16) issuing from the pressure chambers. The pump incorporates pressure fluid guides (19) that are able to connect the inlet and pressure chambers and send at least part of the fluid from the second pressure chamber to the first inlet chamber. The first inlet chamber is connected to the second pressure chamber by one valve, and the second inlet chamber is connected to the first pressure chamber by another.
IPC 8 full level
F04C 2/18 (2006.01); F04C 14/02 (2006.01); F04C 15/06 (2006.01)
CPC (source: EP)
F04C 2/18 (2013.01); F04C 14/02 (2013.01)
Designated contracting state (EPC)
BE DE ES GB IT
DOCDB simple family (publication)
EP 1267077 A1 20021218; EP 1267077 B1 20080227; DE 60225207 D1 20080410; DE 60225207 T2 20090326; FR 2826069 A1 20021220; FR 2826069 B1 20040312
DOCDB simple family (application)
EP 02291491 A 20020614; DE 60225207 T 20020614; FR 0107834 A 20010615