초록 ▼

A pump consisting in a rotor (3) realized like a housing, placed in an outer housing (2), inside the rotor a cylindrical element (6) coaxially connected thereto by means of an elastic band (23) forming lobate chambers (13,14) between the rotor and the cylindrical element (6). Inside the cylindrical

A pump consisting in a rotor (3) realized like a housing, placed in an outer housing (2), inside the rotor a cylindrical element (6) coaxially connected thereto by means of an elastic band (23) forming lobate chambers (13,14) between the rotor and the cylindrical element (6). Inside the cylindrical element (6) a solid cylindrical element (9) with a head (10) flared in the shape of a hexagon is rotating inserted, said cylindrical element (9) engaging with an hexagonal pin (11) fixed in an eccentric position on the closing part (12) of the pump. Thus an eccentric rotation of the cylindrical element (6) is caused and, consequently, the compression and the expansion of the chambers for the expulsion and the suction of the liquid (FIG. 1).

대표청구항 ▼

A rotary expansible chamber device, comprising, an outer housing, a rotor assembly which includes a cylindrical rotor body, a flexible band and a cylindrical inner member, said cylindrical rotor body being located in said housing and being rotatable about a rotor axis which is concentric with respec

A rotary expansible chamber device, comprising, an outer housing, a rotor assembly which includes a cylindrical rotor body, a flexible band and a cylindrical inner member, said cylindrical rotor body being located in said housing and being rotatable about a rotor axis which is concentric with respect to said outer housing, said cylindrical inner member of the rotor assembly being located within and spaced from the rotor body, said flexible band connecting the inner member to the rotor body and being provided with spaced portions of opposite curvature so that it forms a set of circumferentially spaced lobate chambers which are located between the rotor body and the inner member of the rotor, said flexible band being affixed at longitudinally spaced locations to the interior of said cylindrical rotor body and to the exterior of said cylindrical inner member, means for supporting the inner cylindrical member for rotational movement about an axis which is eccentric with respect to the rotor axis whereby rotation of the rotor assembly will produce expansion and contraction of said chambers, said housing having circumferentially spaced inlet and outlet openings in communication with the lobate chambers formed by said flexible band.