Evaporation cycle heat exchange system for vehicle

摘要

An evaporation cycle heat exchange system for a vehicle cools vehicle electronic components, a fuel cell stack, an internal combustion engine, an automatic transmission, a turbocharger, etc. using an evaporative heat exchanger, thus improving cooling efficiency and reducing the size of components such as a radiator. The evaporation cycle heat exchange system cools coolant circulating through a vehicle cooling system by employing an evaporative heat exchanger in which a working fluid flows by a pressure difference caused by volume expansion and capillary phenomenon. Accordingly, it is possible to improve the cooling efficiency of the entire cooling system, reduce the size of components to comply with pedestrian protection regulations, improve fuel efficiency, and ensure the stability of the system.

主权项

1. An evaporation cycle heat exchange system for a vehicle, the system comprising:
an evaporative heat exchanger including an evaporative heat exchange unit, a condensing heat exchange unit, and a pipe line provided between both said heat exchange units to circulate a working fluid and perform heat exchange in such a manner that the working fluid is moved from one side to another side by a pressure difference caused by volume expansion and capillary phenomenon, and the working fluid on said one side is evaporated as its boiling point is lowered on said one side due to a lower pressure resulting from said pressure difference; wherein the evaporative heat exchange unit of the evaporative heat exchanger is connected to an electronic component coolant circulation line for a hybrid vehicle to perform heat exchange with coolant, the coolant circulation line extending through an inverter, a reservoir, an integrated starter/generator, and a water pump, and then returning to the inverter; wherein the evaporative heat exchange unit is mounted in a housing and an inlet and an outlet of the housing are connected to the electronic component coolant circulation line.