Multi-flow type heat exchanger
AssigneeCalsonic Kansei Corporation
InventorsMasatsugu Sugawara, Kazuhito Baba, Toshiaki Yamamoto, Tsutomu Sunaga
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Abstract
A heat exchanger of the multi-flow type is provided with baffle members which are adapted to impart a zigzagging flow to the heat-exchange fluid in motion inside a flat tube and define, in conjunction with the inner wall of the flat tube, a flow path of a cross-sectional area having an equivalent diameter in the range of 0.4 to 1.5 mm. This heat exchanger excels in heat exchange ability and in facility of manufacture and assemblage.
Claims9
A heat exchanger of the multi-flow type comprising a pair of header pipes (1, 2 having a annular cross section fit for flow of heat-exchanger fluid and disposed parallelly as separated by a prescribed length (l), a multiplicity of flat tubes (5) disposed between said header pipes (1, 2) in such a manner as to intercommunicate them, and baffle members (G) adapted to impart a zigzagging stirring motion to said heat-exchanger fluid in motion, which heat exchanger is characterized by the fact that the flow paths defined by said baffle members (G) and the inside walls of said flat tubes possess a cross-sectional area having an equivalent diameter in the range of 0.4 to 1.5 mm.
A heat exchanger of the multi-flow type comprising a pair of header pipes (1, 2) having a annular cross section fit for flow of heat-exchanger fluid and disposed parallelly as separated by a prescribed length (l), a multiplicity of flat tubes (5) disposed between said header pipes (1, 2) in such a manner as to intercommunicate them, and baffle members (G) adapted to impart a zigzagging stirring motion to said heat-exchanger fluid in motion, which heat exchanger is characterized by the fact that said flat tubes (5) are formed by joining two halved flat tubes (5a, 5b), said halved flat tubes (5a, 5b) are each provided therein with a plurality of dimples (50a, 50b) projected symmetrically toward each other so as to partition partially the flow path inside said flat tube (5), the apexes (51a, 51b) of said dimples (50a, 50b) are joined to each other in a width in the range of 1 to 2 mm, said dimples are spaced with a fixed pitch (Pd) in the range of 2 to 4 mm, and the inside thickness (t) of said tubes is in the range of 0.5 to 1.7 mm.
Dependencies are inferred from the claim text.