초록 ▼

An oil cooler 11 comprises oil channel members 2A arranged one above another in parallel at a spacing and each composed of a pair of plates 20A, each of the plates 20A having a hole 21 at each of opposite ends thereof and a channel portion 22 between the end holes 21, the pair of plates 20A being jo

An oil cooler 11 comprises oil channel members 2A arranged one above another in parallel at a spacing and each composed of a pair of plates 20A, each of the plates 20A having a hole 21 at each of opposite ends thereof and a channel portion 22 between the end holes 21, the pair of plates 20A being joined with recessed surfaces of their channel portions 22 opposed to each other to form the oil channel member 2A; and annular header members 4A each interposed between each pair of adjacent oil channel members 2A at each of opposite lateral ends of the cooler. The header member 4A has upper and lower end faces each comprising a flat portion 41 to be fitted to a flat portion 24 of an edge of each plate 20A defining the end hole thereof and a recessed portion 42 to be fitted to a protuberant face of end 22a of the channel portion 22, each end face of the header member being joined to a peripheral edge portion of the plate 20A immediately adjacent thereto and defining an opening 20 formed by the end hole 21 of the plate and an open end of the channel portion 22 thereof for communication with the header member.

대표청구항 ▼

[ What is claimed is:] [1.] 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 extend

[ What is claimed is:] [1.] 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.