Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural rigidly related blade sets
Patent
1987-09-14
1989-02-07
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Plural rigidly related blade sets
F04D 1712
Patent
active
048028193
ABSTRACT:
A multistage centrifugal pump, incorporates a first housing (14) having a cylindrical wall (30) defining a portion of the outer surface of the pump. A first diffuser (15) is fixed to the first housing (14) and has a discharge opening (43). A first impeller (16) is rotatably received within the first housing (14) in operative association with the first diffuser (15). The first impeller (16) includes an inlet opening (25). At least a second housing (14) is provided concentric with, and axially adjacent to, the first housing (14) and has a cylindrical wall (30) defining a portion of the outer surface of the pump. A second diffuser (15) is fixed to the second housing (14) and has a discharge opening (43). A second impeller (16) is rotatably received within the second housing (14) in operative association with the second diffuser (15). The second impeller (16) has an inlet opening (25) fluidly communicating with the discharge opening ( 43) of the first diffuser (15). A pilot region (32) is provided to axially align the first housing (14) with the second housing (14). A driven pump shaft (21) is operatively connected to each impeller (16). An inlet chamber (52) fluidly communicates with the inlet opening (25) of an impeller (16); and a discharge chamber (60) fluidly communicates with the discharge opening (43) of a diffuser (15).
REFERENCES:
patent: 1387660 (1921-08-01), Ostenberg
patent: 2954739 (1960-10-01), Lung
patent: 3025800 (1962-03-01), Wolfe et al.
patent: 3116696 (1964-01-01), Deters
patent: 3265001 (1966-08-01), Deters
patent: 3288074 (1966-11-01), Hall
patent: 3477384 (1969-11-01), Hlinka
patent: 3612716 (1971-10-01), Deters
Bevington Jack T.
Channell Alan B.
Garrett Robert E.
McNeil (Ohio) Corporation
Pitko Joseph M.
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