DIAPHRAGM-TYPE DISPLACEMENT MACHINE Russian patent published in 2013 - IPC F04B43/00 

FIELD: machine building.

SUBSTANCE: proposed machine comprises housing with working chamber connected with intake and pressure valves, rod and, at least, two diaphragms built in the housing and on the rod. Closed spaces between said diaphragms are filled with incompressible moving fluid, for example, oil. Diaphragms feature identical flexure. Said diaphragms can be made of fluoroplastic sheet. Machine rod is coupled with reciprocation mechanism. Temporary unions with plugs are used for filling cavities with oil. Pressure of transferred oil is automatically and uniformly distributed between all set diaphragms without using orifices and extra pressure sources.

EFFECT: simplified design and operation, high pressure of transferred medium.

1 dwg