Cross flow fan

Claim 1

A CROSS FLOW FAN FOR MOVING A FLUID COMPRISING, IN COMBINATION, IMPELLER MEANS HAVING AN AXIS AND A PLURALITY OF IMPELLER BLADES DISPOSED IN A CIRCLE AND DEFINING A CYLINDRICAL OUTER SURFACE ON SAID IMPELLER MEANS CONCENTRIC WITH SAID AXIS AND AN INNER CYLINDRICAL SPACE WITHIN SAID IMPELLER MEANS, SAID BLADES DEFINING CHANNELS BETWEEN EACH OTHER: A STATOR SUPPORTING SAID IMPELLER MEANS FOR ROTATION ABOUT SAID AXIS IN ONE DIRECTION OF ROTATION AND INCLUDING TWO PARTS LOCATED ADJACENT SAID CYLINDRICAL SURFACE ANGULARLY SPACED FROM EACH OTHER AND DEFINING BETWEEN EACH OTHER A PASSAGE THROUGH SAID CHANNELS OF SAID IMPELLER MEANS AND THROUGH SAID INNER SPACE, SAID PASSAGE HAVING AN INLET ON ONE SIDE OF SAID TWO PARTS AND AN OUTLET ON THE OTHER SIDE OF SAID TWO PARTS SO THAT DURING ROTATION OF SAID IMPELLER MEANS IN SAID ONE DIRECTION A FLUID ADMITTED THROUGH SAID INLET FLOWS THROUGH SAID PASSAGE AND OUT OF SAID OUTLET, ONE OF SAID PARTS INCLUDING A GUIDE MEMBER HAVING A GUIDE SURFACE DIRECTLY FACING, AND EXTENDING TOWARD SAID CYLINDRICAL SURFACE AND FORMING WITH THE SAME AN UNOBSTRUCTED GAP COVERGING IN SAID DIRECTION OF ROTATION FROM SAID OUTLET TOWARD SAID INLET, SAID GAP COMMUNICATING THROUGH SAID CHANNELS WITH SAID INNER SPACE AND RECEIVING FROM THE IMPELLER BLADES MOVING INTO SAID GAP A PORTION OF THE FLUID FLOWING INTO SAID OUTLET, AND A FLOW CONTROL MEANS INCLUDING A SUBSTANTIALLY FLAT ELONGATED DEFLECTOR MEMBER MOUNTED ON SAID GUIDE KMEMBER AT THE WIDER END OF SAID CONVERGING GAP, AND MEANS FOR SUPPORTING SAID DEFLECTOR MEMBER FOR MOVEMENT BETWEEN AN INEFFECTIVE FULLY RETRACTED POSITION LYING FLAT ON SAID GUIDE MEMBER AND AT LEAST ONE EFFECTIVE POSITION EXTENDING TRANSVERSE TO SAID GAP AT SAID WIDER END OF SAID GAP, SAID DEFLECTOR MEMBER HAVING A PORTION LOCATED IN SAID EFFECTIVE POSITION IN CLOSE PROXIMITY TO SAID CYLINDRICASL OUTER SURFACE OF SAID IMPELLER MEANS SO AS TO SUBSTANTIALLY CLOSED SAID WIDER END WHEREBY SAID PORTION OF SAID FLUID IS DEFELCTED BY SAID DEFLECTOR MEMBER TO FORM A WHIRLING BODY OF FLUID IN SAID GAP, SAID CHANNELS, AND IN SAID INNER SPACE CONSTRICTING SAID PASSAGE FOR THE MAN FLOW OF THE FLUID AND BEING MOVED RELATIVE TO SAID IMPELLER MEANS THROUGH SAID CHANNELS BY SAID DEFLECTOR MEMBER TO AN EXTENT DEPENDING ON THE POSITION OF SAID MOVABLE DEFLECTOR MEMBER.