EP 0442070 B1 19950412 - Sheet metal pump casing.
Title (en)
Sheet metal pump casing.
Title (de)
Metallblech-Pumpengehäuse.
Title (fr)
Carter de pompe en tÔle.
Publication
Application
Priority
IT 8552490 A 19900213
Abstract (en)
[origin: EP0442070A1] A sheet metal casing with differentiated thickness for centrifugal pumps includes a substantially cup-shaped main body (2) formed by a peripheral wall (3) which is continously joined to a transverse end wall (4); the body is coupled to a transverse sealing plate (9) opposite to the end wall (4) so as to define a pressure chamber (13) enclosing an impeller (14); a tangential delivery port (7) and an axial suction port (6). A funnel-shaped reinforcement element (20), has a frusto-conically shape and a transverse end portion (21) arranged inside the main body (2) and a substantially cylindrical longitudinal end portion (22) extending from the body main coaxially to the suction inlet (6). The transverse end portion (21) of the reinforcement element is at least peripherally overlapped and rigidly sealingly coupled to the end wall (4) of the main body so as to thereby define the transverse wall of the casing which is adjacent to the suction port in contact with the pumped liquid. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/42 (2006.01)
CPC (source: EP)
F04D 29/4266 (2013.01); F04D 29/4273 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0442070 A1 19910821; EP 0442070 B1 19950412; AT E121167 T1 19950415; DE 69018608 D1 19950518; DE 69018608 T2 19951012; DK 0442070 T3 19950703; ES 2070984 T3 19950616; IT 1239829 B 19931115; IT 9085524 A0 19900213; IT 9085524 A1 19910813
DOCDB simple family (application)
EP 90123674 A 19901210; AT 90123674 T 19901210; DE 69018608 T 19901210; DK 90123674 T 19901210; ES 90123674 T 19901210; IT 8552490 A 19900213