Lobe rotor pumps

Details Lobe rotor pumps Lobe rotor pumps

1984-12-20

1986-11-11

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

Like rotary members

418 70, F04C 1802

Patent

active

046219943

ABSTRACT:
A lobe rotor pump including a casing (10) and two lobe rotors (16, 18) the rotors each having, coaxial with its axis of rotation, an axially extending cylindrical sleeve (20, 22) formed integrally therewith. A seal (33-37) is mounted in a fluidtight manner within the casing (10) and seals against the outer cylindrical surface of the sleeve. A blind bore (21, 23), which is closed at the rotor end, (24, 25) has therewithin a drive shaft (28, 30) and retaining means (42 to 57) are provided to hold the sleeve and the rotor on the drive shaft with the drive connection engaged, said retaining means being located on the side of the seal (33-37) remote from the rotor.

REFERENCES:
patent: 1167758 (1916-01-01), Hess
patent: 1405335 (1922-01-01), Rosebush
patent: 2303031 (1942-11-01), Dusevoir
patent: 3126834 (1964-03-01), Bursak
patent: 3182900 (1965-05-01), Thorson
patent: 3704968 (1972-12-01), Haupt
patent: 4293290 (1981-10-01), Swanson

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