Patent ID: 6170567
Filing Date: 2001-01-09
Classification: F28D,F28F

Abstract:
A heat exchanger comprising a plurality of fluid channel members arranged one above another in parallel at a spacing and each composed of a pair of plates, each of the plates having a fluid passing hole at each of opposite lateral ends thereof and a channel portion extending over the entire length thereof between the end holes for forming a fluid channel, the pair of plates being joined with recessed surfaces of their channel portions opposed to each other to form the fluid channel member; and annular header members each interposed between each pair of adjacent fluid channel members at each of opposite lateral ends of the heat exchanger, each of the header members having upper and lower end faces each comprising a flat portion to be fitted to a flat portion of an edge of each plate defining the end hole thereof and a recessed portion to be fitted to a protuberant end face of the plate channel portion, the upper and lower end faces of each of the header members at each of the opposite lateral ends of the exchanger being joined to a peripheral edge portion of the plate immediately adjacent thereto and defining an opening formed by the end hole of the plate and an open end of the channel portion thereof for communication with the header member to form a header at each of the opposite lateral ends.