| 主权项 |
1. A rotary vane pump or motor comprises:
a housing assembly including a cylindrical housing sleeve surrounded by housing bearing and housing frame; wherein the cylindrical housing sleeve having a housing axis of revolution, defining a rotating working space and a working orbit; a rotor assembly including a rotor, a single vane and side-disks with fluid passage, along with the housing assembly and side sealing rings being sandwiched between end-plates to fulfill the side sealing axially;
wherein the rotor having a rotor axis as the rotor mounted on a straight shaft with shaft bearings on both ends,wherein the rotor being eccentrically positioned within the cylindrical housing sleeve to form a working chamber such that the rotor axis and the housing axis being parallel and spaced apart from each other; the single vane being hingedly attached to the rotor periphery flipping to-and-fro relative to the rotor axis while traveling with the rotor and following the orbit of the cylindrical housing sleeve, separating high and low pressure zones of the working chamber, incident to the expansion and contraction of the rotating working space; while the single vane engaging an inner surface of an inner wall of the cylindrical housing sleeve under working pressure, a true radial sealing being formed as a dynamic check valve therebetween; wherein the cylindrical housing sleeve is configured to rotate accordingly around the rotor assembly including the rotor and the single vane, so that the relative sliding movement and friction between the inner wall of the cylindrical housing sleeve and the rotor assembly being conveyed to and borne on the housing bearing; wherein the end-plates contain pressure and non-pressure port communicating duly with respective high and low pressure zones of the working chamber via passages of the side-disks and the rotor, wherein the endplates also contain holes for the shaft, the shaft bearings, and mounting fixtures. |
