EP 0079433 B1 19880107 - CENTRIFUGAL PUMP
Title (en)
CENTRIFUGAL PUMP
Publication
Application
Priority
JP 18226181 A 19811116
Abstract (en)
[origin: EP0079433A1] In a centrifugal pump including a pump runner, (1), and a casing (3) enclosing an outlet port (5) of the pump runner and forming a volute chamber (6) around the pump runner, at least one deflecting wall (11, 13, 14, 15) is provided for causing a fluid flux returning along an inner wall surface of the volute chamber toward the outlet port of the pump runner to be deflected so as to avoid production therein of a velocity component flowing in counter current to a fluid flux discharged through the outlet port of the pump runner. The provision of at least one deflecting wall enables a smooth flow of fluid to be obtained in the vicinity of the outlet port of the pump runner.
IPC 1-7
IPC 8 full level
F04D 29/42 (2006.01); F04D 29/44 (2006.01)
CPC (source: EP KR)
F04D 29/428 (2013.01 - EP); F04D 29/44 (2013.01 - KR); F04D 29/445 (2013.01 - EP)
Citation (examination)
KREISELPUMPEN/A.T. ROSKOLANSKI AND S. LAZARKIEWICZ P. 305, 306, 311, 546.
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0079433 A1 19830525; EP 0079433 B1 19880107; DE 3277927 D1 19880211; JP S5885398 A 19830521; KR 840001306 A 19840430; KR 880001488 B1 19880813
DOCDB simple family (application)
EP 82107809 A 19820825; DE 3277927 T 19820825; JP 18226181 A 19811116; KR 820003904 A 19820830