Cooling apparatus for hybrid vehicle

Abstract

Provided is a cooling apparatus for a hybrid vehicle, the cooling apparatus enabling effective heat exchange between coolant of an engine cooling circuit and refrigerant of an electric-system cooling circuit, and enabling an internal combustion engine and an electric-system device to be cooled and raised in temperature appropriately and speedily. A cooling apparatus 1 for a hybrid vehicle includes: an engine cooling circuit 3 configured to circulate coolant; an electric-system cooling circuit 6 configured to circulate refrigerant; and a heat exchanger 7 configured to perform heat exchange between the coolant and the refrigerant, in which the engine cooling circuit 3 includes: a main circuit 11 enabling continuous circulation of the coolant through the main circuit 11; a radiator circuit 12 configured to circulate the coolant between an internal combustion engine 2 and a radiator 8; a heat-exchange-coolant throughflow portion 13 enabling the coolant to flow through the heat-exchange-coolant throughflow portion 13 and configured to return the coolant having flowed out through the heat exchanger 7 to the main circuit 11; and a three-way valve 14 provided at an upstream end of the heat-exchange-coolant throughflow portion 13, the three-way valve 14 being capable of switching a flow path of the coolant such that the coolant having flowed out of either the internal combustion engine 2 or the radiator 8 is allowed to flow into the heat exchanger 7.

Dependencies are inferred from the claim text.