Patent ID: 7921902

Claim:
A tubular heat exchanger, in which a heat exchange medium flows, comprising: a number of tubes, through which the heat exchange medium flows, the tubes running parallel to one another and configured to form a tubular body; collecting tubes, oriented transversely to the tubes, wherein ends of the tubes are configured to lead into the collecting tubes; and a frame part, configured to bind at least one side of the tubular body and running parallel to the tubes of the tubular heat exchanger, wherein the frame part includes at least one predetermined breaking point, the at least one predetermined breaking point dividing the frame part into two frame subsections, and at least one shear plane of the at least one predetermined breaking point running essentially in a longitudinal direction of the frame part, wherein, in a region of the at least one predetermined breaking point, when breaking takes place a frictional connection is produced between the two frame subsections, and wherein, in the region of the at least one predetermined breaking point, one of the two frame subsections includes a material tongue which protrudes into a C-shaped recess of the second of the frame subsections, the recess including end cheeks which bear laterally against the material tongue, with a connection of the two frame subsections being formed exclusively in the region and in a form of a weakened material bridge which forms the at least one predetermined breaking point.