Patent ID: 7059843
Filing Date: 2006-06-13
Classification: F01C

Abstract:
1. In an axial vane rotary device including a stator with a cylindrical internal chamber defined by an stationary annular outer housing, two end walls closing the outer housing at each end thereof, the inner faces of the end walls define inwardly facing cam surfaces, an inner housing, a rotor, a driveshaft therefor journaled in the inner housing, the rotor being provided with at least a pair of angularly spaced apart axial slots in each of which is slideably disposed an improved vane having a radially outer end and an inner end and side edges, the invention comprising: said improved vane comprising a pair of independent opposed sections, the side edges of each said section comprising a cam follower edge and an opposite edge, said cam follower edge being juxtaposed to the cam surface of an adjacent end wall, each of said sections being independently axially movable with respect to said other section, at least one spring member under compression disposed between said sections to normally urge said sections axially away from one another, each said section further including an inner housing seal piece independently radially downwardly movable with respect to said section, said inner housing seal piece defining a lower edge and an upper edge, said lower edge being in sealing contact with said inner housing when said inner housing seal piece is radially downwardly moved.