Stepped-disc pump

Details Stepped-disc pump Stepped-disc pump

1984-05-23

1985-09-24

Smith, Leonard E.

Rotary expansible chamber devices

Interengaging rotating members

418201, F04C 200, F04C 1800

Patent

active

045430489

ABSTRACT:
The invention relates to a stepped-disc pump with at least two mutually engaging rotors rotating at the same speed in opposite directions and constructed from stepped discs arranged in a row on a shaft and each having only one engagement segment, adjacent stepped discs being in each case mutually offset by a defined angle and being constructed and arranged in such a way that, together with the casing, they form closed delivery chambers. The characteristic feature of the invention is that the offset angle .alpha. is equal to the angle .beta. which is obtained by connecting the points of intersection (5.sub.1, 5.sub.2) of the envelope circles of the rotors (2, 3) to the centers (M.sub.1, M.sub.2) thereof, and that the offset angle .alpha. is equal to 360.degree.
, n being an integer greater than 3.

REFERENCES:
patent: 3941521 (1976-03-01), Weatherston

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