Patent ID: 9726068
Date: 2017-08-08
CPC Classifications: F01P

Claim:
1. A cooling device for an internal combustion engine, comprising: a water pump for circulating cooling liquid in the internal combustion engine; a first cooling liquid line routed by way of a radiator and a cylinder head of the internal combustion engine; a second cooling liquid line routed by way of a cylinder block of the internal combustion engine while bypassing the radiator; a third cooling liquid line routed by way of the cylinder head and a heater core while bypassing the radiator; a fourth cooling liquid line routed by way of the cylinder head and a power transmission device of the internal combustion engine while bypassing the radiator; an electric flow rate control valve whose inlet is connected to the first cooling liquid line, the second cooling liquid line, the third cooling liquid line and the fourth cooling liquid line, and whose outlet is connected to an intake side of the water pump; and a bypass line that branches off from the first cooling liquid line at a point between the cylinder head and the radiator and that joins to the outlet of the flow rate control valve while bypassing the radiator.