Multi-stage pump

Details Multi-stage pump Multi-stage pump

1975-07-24

1976-06-15

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural rigidly related blade sets

415213T, 415201, F04D 2942

Patent

active

039633713

ABSTRACT:
The segmented casing has a plurality of successive stage casing rings, a transfer plate intermediate each adjacent pair of casing rings, a suction end casing section, and a discharge end casing section. A shaft extends axially through the casing, and is supported and sealed at its ends by demountable bearing and seal means. Each casing ring encloses a complete stage containing an impeller which is spring biased into engagement with a locating collar secured to the shaft, and a pair of replaceable liners which are arranged at the opposite sides of each impeller. Each casing ring, impeller, set of liners, locating collar, and spring means, together comprises a module which functions as one stage of the pump. A pump is comprised of two or more modules which are connected internally by a shaft and externally by draw bolts, and which are contained by the suction and discharge end casing sections. Suction and discharge connections are demountably secured to the casing in any one of several rotative positions.

REFERENCES:
patent: 2420556 (1947-05-01), Mueller
patent: 2468246 (1949-04-01), Thayer
patent: 2900112 (1959-08-01), Edwards
patent: 2936714 (1960-05-01), Balje
patent: 3154020 (1964-10-01), Sieghartner
patent: 3168871 (1965-02-01), Sieghartner

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