EP 1898100 A1 20080312 - Fluid Guide
Title (en)
Fluid Guide
Title (de)
Fluidleitvorrichtung
Title (fr)
Dispositif de guidage de fluide
Publication
Application
Priority
EP 06119175 A 20060818
Abstract (en)
A fluid guide (1) comprising a swirl pipe (3) defining an axis, a first end (12) with a first cross-sectional area, and a second end (13) in communication with a pump inlet (16). The first end (12) of the swirl pipe is in communication with at least one funnel-shaped guiding means (4) having an exterior wall, said funnel-shaped guiding means (4) serves for guiding the fluid into the swirl pipe (3). The funnel-shaped guiding means (4) has an inlet opening (14) communicating with an outlet opening (15) through a funnel body (5) and said outlet opening (15) communicates with the first end of the swirl pipe (12). The cross-sectional area of the inlet opening (14) of funnel-shaped guiding means is larger than the cross-sectional area of the outlet-opening (15) of the funnel-shaped guiding means, and the total cross-sectional areas of the outlet openings (15) of the funnel-shaped guiding means is substantially equal to the cross-sectional area of the first end (12) of the swirl pipe. The funnel-shaped guiding means (4) ensures that the velocity of the fluid is effectively raised while being led from a reservoir to a swirl pipe (3). Having the increased velocity and achieving an angular velocity in the swirl pipe (3), the fluid gets in contact with the impeller in a more smooth way. The general tear and wear of the impeller is lowered because the risk of turbulence is lowered.
IPC 8 full level
F04D 29/54 (2006.01); F04D 29/44 (2006.01); F04D 29/70 (2006.01)
CPC (source: EP)
F04D 29/445 (2013.01); F04D 29/548 (2013.01); F04D 29/708 (2013.01); F05D 2250/51 (2013.01)
Citation (search report)
- [DA] US 5501572 A 19960326 - LEFEBVRE GERARD [FR]
- [A] GB 319506 A 19290926 - HUGH RALPH LUPTON
- [A] DE 1119670 B 19611214 - KLEIN SCHANZLIN & BECKER AG
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 06119175 A 20060818