EP 0774077 A1 19970521 - FLOW PUMP FOR USE IN PUMPING FUEL FROM A RESERVOIR TO THE ENGINE OF A MOTOR VEHICLE
Title (en)
FLOW PUMP FOR USE IN PUMPING FUEL FROM A RESERVOIR TO THE ENGINE OF A MOTOR VEHICLE
Title (de)
STRÖMUNGSPUMPE ZUM FÖRDERN VON KRAFTSTOFF AUS EINEM VORRATSBEHÄLTER ZUR BRENNKRAFTMASCHINE EINES KRAFTFAHRZEUGS
Title (fr)
POMPE A CIRCULATION DESTINEE A AMENER DU CARBURANT D'UN RESERVOIR AU MOTEUR A COMBUSTION INTERNE D'UN VEHICULE
Publication
Application
Priority
- DE 9600024 W 19960110
- DE 19504079 A 19950208
Abstract (en)
[origin: US5807068A] PCT No. PCT/DE96/00024 Sec. 371 Date Aug. 21, 1996 Sec. 102(e) Date Aug. 21, 1996 PCT Filed Jan. 10, 1996 PCT Pub. No. WO96/24769 PCT Pub. Date Aug. 15, 1996The flow pump has an impeller (22), revolving in a pump chamber, which on each of its two axially oriented face ends (28, 29), has one ring of vanes (30) between which interstices (31) are located, and which cooperates with a feed channel (34) associated with the vanes (30) for pumping the fuel. When viewed in the radial direction relative to the rotary axis (24) of the impeller (22), the vanes (30) are positioned obliquely with respect to the rotary axis (24) in such a way that they lead ahead in the circumferential direction (21) of the impeller (22) toward the face end (28, 29) of the impeller (22). The vanes (30) and the rotary axis (24) of the impeller (22) form an angle ( alpha ) of between 25 DEG and 70 DEG that is oriented in the circumferential direction (21) of the impeller (22). Because of this obliquely positioned arrangement of the vanes (30), an improved inflow of the pumped fuel into the interstices (31) between the vanes (30) is effected, compared with an arrangement of vanes (30) that is parallel to the rotary axis (24), and as a result an increased feed pressure and improved efficiency of the flow pump are attained.
IPC 1-7
IPC 8 full level
F04D 5/00 (2006.01); F04D 29/18 (2006.01)
CPC (source: EP KR US)
F04D 5/00 (2013.01 - KR); F04D 5/002 (2013.01 - EP US); F04D 29/188 (2013.01 - EP US)
Citation (search report)
See references of WO 9624769A1
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
US 5807068 A 19980915; BR 9605117 A 19971007; CN 1071420 C 20010919; CN 1145659 A 19970319; DE 19504079 A1 19960814; DE 19504079 B4 20041104; DE 59605787 D1 20000928; EP 0774077 A1 19970521; EP 0774077 B1 20000823; EP 0774077 B2 20060405; JP H09511812 A 19971125; KR 100382681 B1 20030821; KR 970702436 A 19970513; WO 9624769 A1 19960815
DOCDB simple family (application)
US 70050496 A 19960821; BR 9605117 A 19960110; CN 96190011 A 19960110; DE 19504079 A 19950208; DE 59605787 T 19960110; DE 9600024 W 19960110; EP 96900265 A 19960110; JP 52387396 A 19960110; KR 19960705575 A 19961007