US Patent 12011764 Metal 3D printed heat exchangers and fluid directing devices

A fluid-directing device, which may be a CVD showerhead, includes a unitary body of additive metal construction, which may be made by 3D metal printing. The unitary body has a passage(s), fluid entrance(s), and fluid exit(s), arranged to direct fluid(s). The passage(s), fluid entrance(s) and fluid exit(s) include at least one cross-section shape not readily achieved through in-line drilling.