GB809620A - Improvements in or relating to heat exchangers - Google Patents

Abstract

809,620. Heat exchangers. MODINE MANUFACTURING CO. Sept. 14, 1956 [Oct. 17, 1955], No. 28127/56. Class 64(3) A heat exchanger adapted to be mounted in a duct 2 so that fluid flowing through the duct passes through and around the heat exchanger comprises an annular passage 5 closed at each end and defined by two co-operating tubular members 3, 4, a turbulator member engaging the walls of the tubular members being disposed in the passage 5 and comprising sheet material slit and corrugated in the manner shown in Fig. 3 to provide a plurality of U-shaped fins, the heat exchanger being supported in the duct 2 by means such as connectors 13 serving also to connect the heat exchanger to a fluid line. In the form shown oil is passed through the passage 5 of the heat exchanger and is cooled by water flowing through the duct 2 which may be made of rigid, flexible, metallic or non-metallic material. Fig. 1 shows two alternative methods of closing the ends of the passage 5. The turbulator member may be made in two parts, e.g. 16a, 16b (Fig. 2) and may be mounted either with the fin portions 19 (Fig. 3) facing the direction of fluid flow through the passage 5 or alternatively with the edges 17a of the fins facing the direction of flow. A further form is described (Fig. 4, not shown) in which the heat exchanger comprises two annular passages one within the other connected either in series or in parallel.