Global Patent Index - EP 1840379 A2

EP 1840379 A2 2007-10-03 - Rotary pump with free flow wheel

Title (en)

Rotary pump with free flow wheel

Title (de)

Kreiselpumpe mit Freistromlaufrad

Title (fr)

Pompe centrifuge dotée d'un rotor de courant libre

Publication

EP 1840379 A2 (DE)

Application

EP 07005864 A

Priority

DE 202006005073 U

Abstract (en)

The pump has a free flow impeller wheel rotatably mounted in a housing and a blade-free chamber (7) between the impeller wheel and a housing wall (6) on the suction side and a device for preventing flow breakaway. At least one flow-influencing arrangement (10) with one or more parts is provided on the suction side housing wall to protrude into the blade-free chamber opposite the impeller wheel blades (4).

Abstract (de)

Die Erfindung betrifft eine Kreiselpumpe mit einem in einem Gehäuse rotierend angeordneten Freistromlaufrad, wobei zwischen einer saugseitigen Gehäusewand und dem Freistromlaufrad ein schaufelloser Raum angeordnet ist und die Pumpe mit einer Einrichtung zur Vermeidung des Abreißens der Strömung versehen ist. Gegenüberliegend zu den Laufradschaufeln (4) und an der saugseitigen Gehäusewand (6) ist mindestens ein, in den schaufellosen Raum (7) vorstehendes, ein- oder mehrteiliges, strömungsbeeinflussendes Mittel (10, 17, 20, 26) angeordnet (Fig. 1).

IPC 8 full level (invention and additional information)

F04D 5/00 (2006.01); F04D 29/44 (2006.01)

CPC (invention and additional information)

F04D 29/445 (2013.01); F04D 5/001 (2013.01)

Citation (applicant)

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 MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

EPO simple patent family

DE 202006005073 U1 20060608; AT 513997 T 20110715; EP 1840379 A2 20071003; EP 1840379 A3 20071107; EP 1840379 B1 20110622

INPADOC legal status


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