Bypass valve for recuperative gas turbines

Claim 2

A VALVE HAVING AN AXIS AND COMPRISING, IN COMBINATION, MEANS DEFINING AN OUTER ANNULAR INLET CONVERGING TOWARD THE AXIS MEANS DEFINING AN INNER ANNULAR INLET COAXIAL WITH AND RADIALLY WITHIN THE OUTER INLET DIVERGING TO INTERSECT THE MEANS DEFINING THE FIRST INLET MEANS DEFINING AN OUTLET COAXIAL WITH AND SPACED AXIALLY FROM THE INLETS THE AFORESAID MEANS DEFINING A RADIALLY CONVERGENT FLUID PATH FROM THE OUTER INLET TO THE OUTLET AND A RADIALLY DIVERGENT-CONVERGENT PATH FROM THE INNER INLET TO THE OUTLET AND A MOVABLE VALVE MEMBER OF ANNULAR AIRFOIL FORM CONVERGING TOWARD THE OUTLET HAVING A CONVEX OUTER FACE AND A CONCAVE INNER FACE THE VALVE MEMBER BEING MOUNTED FOR MOVEMENT AXIALLY OF THE VALVE FROM A FIRST POSITION BLOCKING THE INNER INLET THROUGH A RANGE OF POSITIONS IN THE CONVERGING PORTION OF THE OUTER INLET VARIABLY OPENING THE INNER INLET AND DEFINING AERODYNAMIC MEANS TO TURN THE FLOW FROM THE INNER INLET TO A CONVERGENT PATH COMPATIBLE WITH THE FLOW FROM THE OUTER INLET.

Claim 3

VALVE MEANS FOR COMBINING TWO STREAMS OF FLUID WITH AERODYNAMIC EFFICIENCY AND REGULATING FLOW OF ONE OF THE STREAMS COMPRISING, IN COMBINATION, MEANS DEFINING A FIRST INLET MEANS DEFINING AN OUTLET SUBSTANTIALLY COAXIAL WITH AND SPACED AXIALLY OF THE VALVE MEANS FORM THE FIRST INLET MEANS DEFINING A GENERALLY ANNULAR SECOND INLET DISPOSED AROUND AND SPACED RADIALLY FROM THE FIRST INLET, THE SECOND INLET BEING OF SUBSTANTIALLY GREATER OVERALL DIAMETER THAN THE OUTLET A FIRST CONVERGING WALL DEFINING THE OUTER BOUNDARY OF A PASSAGE FROM THE SECOND INLET TO THE OUTLET A SECOND CONVERGING WALL DEFINING THE INNER BOUNDARY OF A PASSAGE FROM THE SECOND INLET TO THE FIRST INLET A THIRD CONVERGING WALL DEFINING THE INNER BOUNDARY OF A PASSAGE FROM THE FIRST INLET TO THE OUTLET THE SECOND AND THIRD WALLS BEING SPACED RADIALLY TO PROVIDE AN ANNULAR ENTRANCE FROM THE FIRST INLET AND BEING SPACED AXIALLY SO AS TO LIE APPROXIMATELY IN A COMMON CONVERGING SURFACE A MOVABLE ANNULAR VALVE MEMBER MEANS MOUNTING THE VALVE MEMBER FOR MOVEMENT AXIALLY OF THE VALVE MEANS THE ANNULAR VALVE MEMBER BEING IN THE FORM OF AN ANNULAR AIRFOIL CONVERGING TOWARD THE OUTLET THE VALVE MEMBER BRIDGING THE GAP BETWEEN THE SECOND AND THIRD WALLS IN A CLOSED POSITION TO BLOCK THE SAID ENTRANCE AND COMPLETE AN INNER WALL FROM THE SECOND INLET TO THE OUTLET THE VALVE MEMBER OPENING THE SAID ENTRANCE UPON MOVEMENT AWAY FROM THE CLOSED POSITION TOWARD THE OUTLET AND SERVING TO TURN THE FLOW FROM THE ENTRANCE TOWARD THE AXIS AND THUS MINIMIZE FLOW LOSSES FROM INTERFERENCE BETWEEN THE FLUID STREAMS FROM THE TWO INLETS.

Claim 4

VALVE MEANS FOR COMBINING TWO STREAMS OF FLUID WITH AERODYNAMIC EFFICIENCY AND REGULATING FLOW OF ONE OF THE STREAMS COMPRISING, IN COMBINATION, MEANS DEFINING A FIRST INLET MEANS DEFINING AN OUTLET SUBSTANTIALLY COAXIAL WITH AND SPACED AXIALLY OF THE VALVE MEANS FORM THE FIRST INLET MEANS DEFINING A GENERALLY ANNULAR SECOND INLET DISPOSED AROUND AND SPACED RADIALLY FROM THE FIRST INLET, THE SECOND INLET BEING OF SUBSTANTIALLY GREATER OVERALL DIAMETER THAN THE OUTLET A FIRST CONVERGING WALL DEFINING THE OUTER BOUNDARY OF A PASSAGE FROM THE SECOND INLET TO THE OUTLET A SECOND CONVERGING WALL DEFINING THE INNER BOUNDARY OF A PASSAGE FROM THE SECOND INLET TO THE FIRST INLET A THIRD CONVERGING WALL DEFINING THE INNER BOUNDARY OF A PASSAGE FROM THE FIRST INLET TO THE OUTLET THE SECOND AND THIRD WALLS BEING SPACED RADIALLY TO PROVIDE AN ANNULAR ENTRANCE FROM THE FIRST INLET AND BEING SPACED AXIALLY SO AS TO LIE APPROXIMATELY IN A COMMON CONVERGING SURFACE A MOVABLE ANNULAR VALVE MEMBER MEANS MOUNTING THE VALVE MEMBER FOR MOVEMENT AXIALLY OF THE VALVE MEANS THE ANNULAR VALVE MEMBER BEING IN THE FORM OF AN ANNULAR AIRFOIL CONVERGING TOWARD THE OUTLET THE VALVE MEMBER BRIDGING THE GAP BETWEEN THE SECOND AND THIRD WALLS IN A CLOSED POSITION TO BLOCK THE SAID ENTRANCE AND COMPLETE AN INNER WALL FROM THE SECOND INLET TO THE OUTLET THE VALVE MEMBER OPENING THE SAID ENTRANCE UPON MOVEMENT AWAY FROM THE CLOSED POSITION TOWARD THE OUTLET AND SERVING TO TURN THE FLOW FROM THE ENTRANCE TOWARD THE AXIS AND THUS MINIMIZE FLOW LOSSES FROM INTERFERENCE BETWEEN THE FLUID STREAMS FROM THE TWO INLETS.