Patent ID: 9745887
Date: 2017-08-29
CPC Classifications: F01K,F01P,F02G,Y02T

Claim:
1. An engine cooling system comprising: a Rankine cycle configured such that a first coolant circulates through a cooling pump, an evaporator, an expander, and a condenser in this order; a cooling cycle for an air conditioner configured to cool a vehicle by utilizing a vaporization of a liquid second coolant; a radiator which is disposed at a front surface of the vehicle, and through which engine-main-body cooling water flows; and a sub-radiator through which an intercooler cooling water flows, the engine cooling system using some of inlet-side cooling water of the radiator as a heating source for the evaporator, and some of outlet-side cooling water of the sub-radiator as a cooling source for the condenser, wherein the vaporized second coolant is cooled and again liquefied by using some of the outlet-side cooling water of the sub-radiator in the condenser.