F - Mech Eng,Light,Heat,Weapons – 03 – B
Patent
F - Mech Eng,Light,Heat,Weapons
03
B
103/105
F03B 11/08 (2006.01) F04D 7/04 (2006.01) F04D 29/12 (2006.01) F04D 29/42 (2006.01)
Patent
CA 1330908
ABSTRACT A centrifugal pump wherein the housing defines an annular chamber which is disposed downstream of the impeller and surrounds the shaft seal. The chamber receives a hollow cylindrical or frustoconical shroud which spacedly surrounds the shaft seal and protects it from solid particles in the conveyed fluid. A non-contact type annular seal between the impeller and the housing surrounds the shroud.
602640
Bayer Karl-Heinz
Becker Karlheinz
Fetherstonhaugh & Co.
Ksb Aktiengesellschaft
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