Pumps – Motor driven – Motor rotor intermediate coaxial pump rotors
Patent
1988-11-03
1990-02-20
Smith, Leonard E.
Pumps
Motor driven
Motor rotor intermediate coaxial pump rotors
417369, 4174235, 4174238, 415176, 415177, F04B 3906
Patent
active
049022032
ABSTRACT:
A housing (10) encloses a dual outlet, dual rotor blower between two cast parts (11 and 12) having internal partitions (31) dividing a volute region (30) of the housing. Flanges (32) on opposite ends of the motor (15) nest between the partitions for mounting the motor and its rotors (16) in the volute region. A discharge plenum (35) communicates with each of the rotors and spans the distance between them, and partitions (31) extend into the plenum. A pair of conveying nozzles (40) discharge from the plenum; but some of the air passes around the ends (33) of partitions (31), where it flows over motor (15) and out through vent openings (34). Confronting flanges (13, 14, and 24) are fastened together to assemble the motor and rotors within two cast parts (11 and 12).
REFERENCES:
patent: 1375482 (1921-04-01), Bartlett
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patent: 2703199 (1955-03-01), Drake
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patent: 2814432 (1957-11-01), Eiserman
patent: 3305164 (1967-02-01), Laing
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patent: 3348020 (1967-10-01), Cooper
patent: 3390830 (1968-07-01), Kahane
patent: 3780411 (1973-12-01), Bulin
patent: 3874191 (1975-04-01), Hudson
patent: 4171190 (1979-10-01), Hudson
patent: 4450755 (1984-05-01), Catan
Smith Leonard E.
Szczecina Jr. Eugene L.
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