Abstract: The invention relates to a device for heat exchange, in particular in a refrigerant circuit, with at least one first flow path and at least one second flow path, which, in a cross section perpendicular to a longitudinal direction of the device, are disposed coaxially with respect to one another, and each of which comprises at least one flow channel. The device is realized of a synthetic material.

Abstract: The invention relates to a device (1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i) for heat exchange, in particular in a refrigerant circuit. The device (1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i) comprises at least one first flow path (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i) and at least one second flow path (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) which, in a cross section perpendicular to a longitudinal direction (L) of the device (1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i), are disposed coaxially with respect to one another with each comprising at least one flow channel (4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i). One wall of the at least one flow channel (4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i, 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h, 5i) of at least one flow path (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i, 3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) is realized of a synthetic material.

Abstract: The invention relates to a method for producing a radiator box or charge air cooler box in the form of a plastic box with an integrated seal by means of two-component injection molding using an injection molding tool. The injection molding tool includes a first main part, a second main part and a movable sliding element core as the third main part, the parts forming a first cavity for at least one part of the plastic box and, by a relative movement of the movable sliding element core, a second cavity, immediately adjacent to the first cavity, for a seal material.