Rotary vane machine

Claim 1

A ROTARY VANE MACHINE COMPRISING A STATIONARY HOUSING, A ROTOR IN SAID HOUSING COMPRISING A CENTRAL ROTOR PART AND TWO ROTOR SIDE WALLS AXIALLY AT BOTH SIDES OF SAID CENTRAL PART AND RADIALLY PROJECTING THEREFROM, SAID ROTOR SIDE WALLS HAVING OPPOSITE INNER SEALING SURFACES ADJACENT TO SAID CENTRAL PART, SAID HOUSING HAVING AN ENCASING RING PART WITH AXIALLY OUTER END SURFACES FITTED BETWEEN THE SEALING SURFACES OF SAID ROTOR SIDE WALLS, SAID ROTOR HAVING SUBSTANTIALLY RADIAL SLOTS, VANES SLIDABLY MOUNTED IN SAID SLOTS, SAID CENTRAL ROTOR PART TOGETHER WITH SAID ROTOR SIDE WALLS AND SAID ENCASING RING PART DEFINING A WORKING SPACE, SAID WORKING SPACE BEING DIVIDED BY SAID VANES INTO A PLURALITY OF INDIVIDUAL WORKING CHAMBERS, SAID HOUSING HAVING HOUSING HOODS SPACED FROM AND ENCLOSING SAID ROTOR SIDE WALLS TO FORM END CHAMBERS SEPARATE FROM SAID WORKING CHAMBERS, SAID END CHAMBERS FORMED AXIALLY OUTSIDE OF SAID ROTOR SIDE WALLS, CHANNEL MEANS FOR SUPPLYING A FLOWING COOLING MEDIUM TO SAID END CHAMBERS, AND INCLUDING FIRST CHANNELS EXTENDING SUBSTANTIALLY AXIALLY THROUGH SAID ROTOR AND OPENING AT THE AXIAL ENDS OF THE SSAME FOR CONNECTING SAID TWO END CHAMBERS WITH EACH OTHER, AND SECOND CHANNELS SUPPLYING SAID MEDIUM TO SAID FIRST CHANNELS INTERMEDIATE THE ENDS THEREOF.