ES450021A2 - Heat exchangers - Google Patents

Abstract

Improvements in the object of the patent 422,763, for "Improvements in heat exchangers" and, more particularly in heat exchangers that comprise a stack of identical circular cups that have continuous edges folded from the bottom of each cup, being these flanges juxtaposed axially against each other so that the cups are mutually fitted, reserving chambers between them, each cup being drilled in the vicinity of its periphery by two circular holes whose centers are respectively arranged with two radii, of this cup, perpendicular to each other, these centers both being located at the same distance from the center of said cup, the contiguous cups of the stack being angularly offset by 90º each in relation to the next, and the two holes of each cup, respectively, having diameters different and being respectively linked to two collars that protrude respectively on the two opposite faces of said bottom, the difference between the diameters of these two collars being such that the smaller collet of each cup fits snugly into the larger collet, facing it, of the adjacent cup of the stack arranged on the same side as this smaller collar, according to the main patent, characterized in that the exchanger comprises, on the one hand, in each chamber (9), an elastic seal (30) comprising a first ring (31) arranged along the inner periphery of this chamber and a second ring (32), with a diameter less than that of the first ring, that tightly surrounds the larger collar (13) that crosses said chamber, these two rings joining substantially tangentially in the direction of the first ring closest to this larger collar and, on the other hand, a clamping means (33, 38) to keep the cups against each other and slightly crush each meeting between the funds of the two cups that frame this meeting. (Machine-translation by Google Translate, not legally binding)