F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/112
F04D 9/02 (2006.01) F04D 5/00 (2006.01) F04D 9/04 (2006.01) F04D 15/02 (2006.01)
Patent
CA 1165624
Abstract The invention relates to a centrifugal pump having a first centrifugal pump stage , which is located on the suction side and is not self- priming, and having a pump inlet nozzle , which is located axially at the level of the horizontal shaft , and having at least one centrifugal pump stage which is located downstream and which, operating with the aid of auxiliary liquid, is self-priming. According to the invention, the self-priming capability and reliability of the pump, in particular for conveying media in the vicinity of their boiling point, are improved by arranging a liquid reservoir , of suffi- cient size, between two pump stages, the connection from this reservoir to the preceding centrifugal pump stage being located in the geodetically upper portion of the reservoir, and a seal for closing the shaft clearance being located between the liquid reservoir and the preceding centrifugal pump stage.
383142
Fandrey Peter
Lehmann Wilfried
Marks & Clerk
Sihi Gmbh & Co. Kg
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