EP 1436509 A1 20040714 - VARIABLE-DELIVERY VANE PUMP
Title (en)
VARIABLE-DELIVERY VANE PUMP
Title (de)
FLÜGELZELLENPUMPE MIT VERÄNDERLICHER FÖRDERMENGE
Title (fr)
POMPE A PALETTES A CYLINDREE VARIABLE
Publication
Application
Priority
- EP 0210237 W 20020912
- FR 0111825 A 20010912
Abstract (en)
[origin: FR2829535A1] The pump comprises a body (1) having a cylindrical cavity (2) in which a movable ring (3) displaces radially and inside which is a hub (4), able to rotate around a fixed axis, provided with blades (5) which during rotation are supported against the internal surface of the ring. The ring can be displaced between a position centered on the rotational axis and an end position eccentric to the hub rotational axis. The ring displacement means comprise a hollowed out part (10) in the cylindrical wall of the body cavity and a projection (9) on the ring external face which slides in the hollowed out part to form a chamber in which a pressure is applied dependent upon the pressure existing in the pump pressure zone.
IPC 1-7
IPC 8 full level
F04C 2/344 (2006.01); F04C 14/22 (2006.01)
CPC (source: EP KR US)
F04C 2/344 (2013.01 - KR); F04C 2/3441 (2013.01 - EP US); F04C 14/223 (2013.01 - EP US)
Citation (search report)
See references of WO 03023228A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
FR 2829535 A1 20030314; FR 2829535 B1 20050812; DE 60230053 D1 20090108; EP 1436509 A1 20040714; EP 1436509 B1 20081126; ES 2318048 T3 20090501; JP 2005502815 A 20050127; KR 20040029171 A 20040403; US 2004247463 A1 20041209; US 7344361 B2 20080318; WO 03023228 A1 20030320
DOCDB simple family (application)
FR 0111825 A 20010912; DE 60230053 T 20020912; EP 0210237 W 20020912; EP 02777077 A 20020912; ES 02777077 T 20020912; JP 2003527269 A 20020912; KR 20047003607 A 20020912; US 48945204 A 20040311