Patent ID: 8171987

Claim:
A parallel flow heat exchanger comprising: an inlet header having an inlet opening for conducting the flow of fluid into said inlet header and a plurality of outlet openings for conducting the flow of fluid from said inlet header; a plurality of channels aligned in a substantially parallel relationship and fluidly connected to said plurality of outlet openings for conducting the flow of fluid from said inlet header; a first insert disposed within said inlet header and being fluidly connected at its one end to said inlet opening, said first insert extending substantially the length of said inlet header and having a plurality of openings therein for conducting the flow of refrigerant from said first insert to said inlet header; and a second insert disposed within said first insert and extending substantially the length of said first insert, said second insert being of increasing cross sectional area and defining, with said first insert, an annulus of decreasing area as it extends away from said inlet opening.