Patent ID: 8327924

Claim:
A cross flow heat exchanger increasing heat transfer performance comprising: a plurality of hot plate fins within said cross flow heat exchanger; wherein said plurality of hot plate fins further comprises: a hot fluid inlet positioned at a first terminal end of said plurality hot plate fins; a hot fluid outlet positioned at a second terminal end of said plurality of hot plate fins opposite to said first terminal end; and a plurality of hot notches configured between 10° to 45°, inclusive, to a direction of hot fluid flow from said hot fluid inlet to said hot fluid outlet; wherein said plurality of hot notches reduce a heat transfer along said direction of hot fluid flow; a plurality of cold plate fins vertically interposed between said plurality of hot plate fins, wherein said plurality of cold plate fins further comprises: a cold fluid inlet positioned at a first terminal end of said plurality of cold plate fins; a cold fluid outlet positioned at a second terminal end of said plurality of cold plate fins opposite to said first terminal end; and a plurality of cold notches configured between 10° to 45°, inclusive, to a direction of cold fluid flow from said cold fluid inlet to said cold fluid outlet; wherein said plurality of cold notches reduce a heat transfer along said direction of cold fluid flow; wherein said direction of cold fluid flow is perpendicular to said direction of hot fluid flow; wherein said plurality of hot notches are alternately placed along a top surface of said plurality of hot fins and a bottom surface of said plurality of hot fins along said direction of hot fluid flow; wherein said plurality of cold notches are alternately placed along a top surface of said plurality of cold fins and a bottom surface of said plurality of cold fins along said direction of cold fluid flow; wherein said plurality of hot notches are positioned equal distance from one another along said direction of hot fluid flow; and wherein said plurality of cold notches are positioned equal distance from one another along said direction of cold fluid flow.