EP 0490908 A1 19920624 - SHEET METAL PUMP CASING.
Title (en)
SHEET METAL PUMP CASING.
Title (de)
KREISELPUMPENGEHÄUSE IN BLECHBAUWEISE.
Title (fr)
CORPS DE POMPE CENTRIFUGE CONSTRUIT EN TOLE.
Publication
Application
Priority
- DE 3929758 A 19890907
- EP 9001373 W 19900820
Abstract (en)
[origin: WO9103649A1] The invention concerns a pump casing (1) for centrifugal pumps made from sheet metal, in which the impeller (2) is provided with an annular space (3). At the start and end edges (6, 7) of the outlet port of the annular space (3) are located projections (8, 9). When the medium conveyed contains abrasive substances, the projections prevent erosion of the outlet port.
Abstract (fr)
L'invention concerne un corps de pompe (1) pour pompes centrifuges construit en tôle où un espace annulaire (3) est disposé autour du rotor (2). Des éléments formant saillie (8, 9) sont disposés sur la première et dernière arête (6, 7) de l'ouverture de sortie de l'espace annulaire (3). Ceux-ci préviennent une usure à l'ouverture de sortie dans le cas du refoulement d'un produit contenant des substances abrasives.
IPC 1-7
IPC 8 full level
F04D 29/42 (2006.01); F04D 1/00 (2006.01); F04D 7/04 (2006.01)
CPC (source: EP US)
F04D 29/426 (2013.01 - EP US); F04D 29/4266 (2013.01 - EP US); F04D 29/428 (2013.01 - EP US); Y10S 415/914 (2013.01 - EP US)
Citation (search report)
See references of WO 9103649A1
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9103649 A1 19910321; AT E123329 T1 19950615; CA 2066434 A1 19910308; CA 2066434 C 19991005; CN 1022260 C 19930929; CN 1050079 A 19910320; DD 300241 A5 19920527; DE 3929758 A1 19910321; DE 3929758 C2 19941117; DE 59009190 D1 19950706; EP 0490908 A1 19920624; EP 0490908 B1 19950531; JP H04503848 A 19920709; JP H0647998 B2 19940622; MX 172517 B 19931216; US 5228831 A 19930720
DOCDB simple family (application)
EP 9001373 W 19900820; AT 90912183 T 19900820; CA 2066434 A 19900820; CN 90107568 A 19900906; DD 34384390 A 19900905; DE 3929758 A 19890907; DE 59009190 T 19900820; EP 90912183 A 19900820; JP 51159290 A 19900820; MX 2215090 A 19900829; US 83629992 A 19920304