MULTICHANNEL FLAT TUBE

摘要

The invention relates to a multichannel flat tube for a heat exchanger comprising a plurality of parallel flow channels (2) which are adjacent to one another in a transversal direction with regard to the tube. According to the invention, the flow channels (2) have an oval cross-section, and/or the outer surfaces of the tube have a wave-shaped cross-contour which corresponds to the flow channels in such a way that the flat tube is thinner in the vertical direction of the tube between each two flow channels than in the area of a respective flow channel. The inventive flat tube can be designed for high working pressures while having a relatively low weight and a relatively high heat exchanging capacity. The inventive multichannel flat tube is used, for example, in CO2 motor vehicle air conditioning systems.