EP 0456596 A1 19911113 - A centrifugal pump.
Title (en)
A centrifugal pump.
Title (de)
Kreiselpumpe.
Title (fr)
Pompe centrifuge.
Publication
Application
Priority
DK 117290 A 19900510
Abstract (en)
A centrifugal pump comprises a casing and a rotary impeller (1) provided with a cover plate (8) and a plurality of spacing blade means (2) fastened thereto. Radially seen, each spacing blade means comprises an outer, solid section (2b min , 2bo) and an inner section having at least one cavity (16, 17). The outer section forms an integral part with the inner section or is joined therewith. As a result the impeller is easily adapted to the desired operating conditions (capacity, pressure) without affecting the flow conditions at the outer periphery of the impeller, because a slight adaptation of the spacing blade means diameter by turning only results in removing material from the outer, solid section but not from the hollow section. The latter remains undamaged, and the flow conditions are consequently excellent. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 29/22 (2006.01)
CPC (source: EP)
F04D 29/2216 (2013.01); F04D 29/2222 (2013.01)
Citation (search report)
- [X] US 1030561 A 19120625 - BLACKMER ERNEST E [US], et al
- [X] FR 1139152 A 19570626 - BABCOCK & WILCOX FRANCE
- [A] US 4874293 A 19891017 - GUTZWILLER H LESLIE [US]
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0456596 A1 19911113; EP 0456596 B1 19950906; DE 69112701 D1 19951012; DE 69112701 T2 19960321; DK 117290 A 19911111; DK 117290 D0 19900510; DK 164135 B 19920511; DK 164135 C 19921012
DOCDB simple family (application)
EP 91610041 A 19910506; DE 69112701 T 19910506; DK 117290 A 19900510