WASTE HEAT UTILIZATION DEVICE FOR INTERNAL COMBUSTION

摘要

A waste heat utilization device (2) for an internal combustion (6) comprises a cooling water circuit (8) having a radiator (26) for cooling cooling water and a Rankine cycle circuit (4) in which an evaporation device (10) and a heat exchanger (12) form a heat exchange region and an expansion device (14) and a condenser (16) form an energy generating region (56). The Rankine cycle circuit (4) comprises bypass paths (4c, 4e) for bypassing the energy generating region (56) and flowpath switching means for forming a heat pipe channel (54) for heating the cooling water using an operating fluid by allowing the operating fluid heated by the heat exchanger (12) to flow in the evaporation device (10) by switching a path to the bypass paths(4c, 4e).