Cross flow fan arrangement

Claim 1

A CROSS FLOW FAN COMPRISING, IN COMBINATION, ROTARY IMPELLER MEANS HAVING AN AXIS AND A PLURALITY OF IMPELLER BLADES DEFINING A CYLINDRICAL OUTER SURFACE ON SAID IMPELLER MEANS AND AN INNER CYLINDRICAL SPACE WITHIN SAID IMPELLER MEANS; AND A STATOR SUPPORTING SAID IMPELLER MEANS FOR ROTATION ABOUT SAID AXIS IN ONE DIRECTION ROTATION AND INCLUDING TWO PARTS LOCATED ADJACENT SAID CYLINDRICAL OUTER SURFACE SPACED CIRCUMFERENTIALLY ABOUT THE SAME AND DEFINING BETWEEN EACH OTHER A PASSAGE THROUGH SAID IMPELLER MEANS AND THROUGH SAID INNER SPACE, SAID PASSAGE HAVING AN INLET FOR A FLUID ON ONE SIDE OF SAID TWO PARTS AND AN OUTLET FOR THE FLUID ON THE OTHER SIDE OF SAID TWO PARTS SO THAT DURING ROTATION OF SAID IMPELLER MEANS IN SAID ONE DIRECTION A FLUID IS DRAWN THROUGH SAID INLET, FLOWS THROUGH SAID PASSAGE AND IS DISCHARGED THROUGH SAID OUTLET, ONE OF SAID PARTS BEING A GRID INCLUDING A PLURALITY OF DEFLECTING VANES DEFINING DEFLECTING GUIDE PASSAGES CONNECTING SAID OUTLET WITH SAID INLET, SAID VANES GUIDE PASSAGES BEING SHAPED TO GUIDE A PORTION OF SAID FLUID FROM SAID OUTLET BACK INTO SAID INLET AND IN A STREAM ALONG SAID ONE PART TO FORM A WHIRLING BODY OF FLUID IN SAID INNER SPACE FOR GUIDING THE MAIN FLOW OF THE FLUID THROUGH SAID PASSAGE.