US Patent 11761369 Heat pipes integrated into a 3-D printed part

An air cooled machine is formed with a housing and a plurality of heat rejecting fins with a heat pipe system disposed therein. The heat pipe system includes a primary passageway and a plurality of leg passageways extending through the housing and into each fin. A working fluid is disposed within the heat pipe system and is operable to receive heat from a heat source, change material phase at a threshold temperature and transfer the heat through the fins to a surrounding atmosphere.