Positive displacement machine

Details Positive displacement machine Positive displacement machine

1978-02-23

1979-07-10

Freeh, William L.

Pumps

Expansible chamber type

Moving cylinder

417466, F04B 1902, F04B 2900

Patent

active

041606280

ABSTRACT:
A positive displacement machine has a housing bounding an elongated interior compartment, a flat displaceable part-circular element in said compartment subdividing the latter into a pressure chamber and a suction chamber and having a recess in a periphery thereof bounded by two edges which are spaced circumferentially of the periphery, and drive elements for imparting to the displaceable element a translatory displacement and for superposing on the translatory displacement an angular movement such that during displacement of the element between two opposite dead center positions, the pressure and suction chambers are temporarily placed in communication by the recess of the displaceable element so as to permit displacement of a fluid from one to the other chamber. The displaceable element has a periphery exceeding over more than 180.degree. of arc and a diameter corresponding to the width of the interior compartment of the housing in a direction transverse to the elongation of the compartment.

REFERENCES:
patent: 3591318 (1971-07-01), Knapp
patent: 3656875 (1972-04-01), Lock

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