Heat exchange apparatus for cooling electromagnetic devices

Claim 1

A HEAT EXCHANGE APPARATUS COMPRISING A PLATE CONSISTING OF A SINGLE PIECE OF MATERIAL POSSESSING HIGH HEAT CONDUCTIVELY CHARACTERISTICS AND HAVING A PAIR OF CLOSELY SPACED OPPOSING SIDE SURFACES AND A PAIR OF OPPOSING EDGE SURFACES INCLUDING AN INTERNAL END SURFACE AND AN EXTERNAL EDGE SURFACE, THE GROOVE FORMING A GROOVE IN SAID PLATE MEANS HAVING SIDE AND BOTTOM WALLS DEFINED BY THE MATERIAL OF THE PLATE, THE GROOVE EXTENDING FROM THE INTERNAL EDGE SURFACE OF THE PLATE WITH THE SIDE WALLS OF THE GROOVE EXTENDING BETWEEN THE PAIR OF CLOSELY SPACED OPPOSED SIDE SURFACES OF THE PLATE AND THE BOTTOM WALL BEING SPACED INWARDLY OF THE INTERNAL EDGE SURFACE OF THE PLATE, COVER MEANS ADJACENT THE INTERNAL EDGE SURFACE OF THE PLATE CLOSING THE GROOVE TO DEFINE WITH THE WALLS OF THE GROOVE A FLUID COOLANT PASSAGEWAY, THE FLUID COOLANT PASSAGEWAY EXTENDING ABOUT THE INTERNAL EDGE SURFACE OF THE PLATE AT LEAST IN PART ADJACENT THE INTERNAL EDGE SURFACE OF THE PLATE AND HAVING AN INLET END AND AN OUTLET END SPACED BY MATERIAL OF THE PLATE AND LOCATED ADJACENT THE INTERNAL EDGE SURFACE OF THE PLATE, MEANS FORMING A FLUID INLET OPENING AND A FLUID OUTLET OPENING ADJACENT THE EXTERNAL EDGE SURFACE OF THE PLATE, AND MEANS FORMING A FLUID PASSAGEWAY IN THE PLATE BETWEEN THE FLUID INLET OPENING AND THE INLET END OF THE FLUID COOLANT PASSAGEWAY AND A FLUID PASSAGEWAY IN THE PLATE BETWEEN THE FLUID OUTLET OPENING AND THE OUTLET END OF THE FLUID COOLANT PASSGEWAY.