Heat exchanger, methods and means for making same

Details Heat exchanger, methods and means for making same Heat exchanger, methods and means for making same

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 9/00 (2006.01) F28F 21/00 (2006.01) F28F 21/06 (2006.01)

Patent

CA 2509777

The invention concerns an elementary heat exchanger comprising a single elongated active monobloc component (10), enclosed in a casing provided with coolant inlet and outlet. The casing consists of two half-shells (11a-b), welded together (98a-b, 114a--b), fixed to the active component. The active component (10) comprises a fishbone cross-section (10a-b), whereof the bones (12a-b) are hollow, oblique, embossed and globally symmetrical. The active component is made from a blank made of resistant material (for example a polymer), in the form of biconvex stiff-walled bellows (33--35-37-39), comparable to those of an accordion whereof the peaks have been struck off (36), narrow bases (38) and a spacing (16) between said bases.

Un tel échangeur élémentaire comprend une pièce active unique monobloc (10), allongée, enfermée dans une enveloppe pourvue de tubulures d'entrée et de sortie. L'enveloppe est constituée par deux demi-coquilles (11a-b), soudées entre elles (98a-b, 114a-~b), fixées à la pièce active. La pièce active (10) présente une section droite (l0a-b) en forme de colonne vertébrale de poisson, dont les arêtes (12a-b) sont creuses, obliques, gaufrées et globalement symétriques. La pièce active est réalisée à partir d'une ébauche en matériau inaltérable (un polymère, par exemple), en forme de soufflets biconvexes à parois raides (33-~35-37-39), comparables à ceux d'un accordéon qui auraient des crêtes arasées (36), des fonds étroits (38) et un espacement (16) entre ces fonds.

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