Patent ID: 7377308
Filing Date: 2008-05-27
Classification: F28D,F28F

Abstract:
1. A stacked plate heat exchanger for transferring heat between a first fluid flowing in a plurality of U-shaped flow paths through the heat exchanger and a second fluid flowing in a plurality of U-shaped flow paths through the heat exchanger, the heat exchanger comprising: a stack of embossed plates, each of the plates having first and second oppositely facing sides, the plates stacked so that the first side of each plate faces the first side of an adjacent plate and the second side of each plate faces the second side of an adjacent plate, each of the plates having a first pair of embossed ports located adjacent a first end and embossed from the first side of the plate, a second pair of embossed ports located adjacent a second end and embossed from the second side of the plate, a first elongated embossed bead embossed from the second side and having a length extending from between the first pair of embossed ports toward the second pair of embossed ports, and a second elongated embossed bead embossed from the first side and having a length extending from between the second pair of embossed ports toward the first pair of embossed ports, the second elongated embossed bead being offset transversely from the first elongated embossed bead, wherein the first embossed bead of each plate engages the first embossed bead of an adjacent plate to define a first U-shaped flow path extending between the first pair of embossed ports, and the second embossed bead of each plate engages the second embossed bead of an adjacent plate to define a second U-shaped flow path extending between the second pair of embossed ports.