Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural rigidly related blade sets
Patent
1975-11-14
1977-06-28
Raduazo, Henry F.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural rigidly related blade sets
417407, 415 97, 403259, F04D 1708
Patent
active
040322564
ABSTRACT:
A pump for handling liquids laden with abrasive particles having impellers arranged in a counter-opposed manner on the pump shaft to rotate jointly with the latter. At the points of impeller mounting, the shaft has tapered surfaces whose apices face each other and the mating surfaces of the impellers are also tapered. At least one of the tapered surfaces of the shaft is formed by a bushing disposed with provision for moving axially along said shaft for pressing the impellers against the corresponding tapered surfaces of the shaft. This mode of mounting the impellers extends considerably the service life of the pump.
REFERENCES:
patent: 872883 (1907-12-01), Adams
patent: 1029950 (1912-06-01), Schulz
patent: 1448925 (1923-03-01), Fulton et al.
patent: 1918359 (1933-07-01), Weis
patent: 3157991 (1964-11-01), Kemenczky
patent: 3601501 (1971-08-01), Johnson et al.
patent: 3749516 (1973-07-01), Samurin et al.
Letov Nikolai Nikolaevich
Tatkov Viktor Arsentievich
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