Patent ID: 7921558

Claim:
A heat exchanger assembly for transferring heat comprising: a first header being generally cylindrical in cross-section to define a first cavity extending along a first header axis between a pair of first header end portions; a second header defining a second cavity extending along a second header axis (A 2 ) between a pair of second header end portions; said headers each defining a plurality of header slots; a plurality of refrigerant tubes each extending between said header slots and defining a fluid passage extending between a pair of refrigerant tube ends; each fluid passage being in fluid communication with said cavities for transferring refrigerant from one of said cavities to the other of said cavities; a refrigerant conduit having a conduit cross-section and disposed in said first cavity and extending along said first header axis; said conduit cross-section being generally semi-circular defining an arced surface and a chord surface; said refrigerant conduit including a plurality of orifices in fluid communication with said first cavity for transferring the refrigerant between said refrigerant conduit and said first cavity; and said refrigerant conduit defining a conduit body portion and at least one conduit end portion having a circular cross-section; said conduit body portion being offset from said conduit end portion; and a conduit transition portion interconnecting said conduit body portion and said conduit end portion.