Cooling system for a liquid cooled engine

摘要

A cooling system for a liquid cooled engine comprises a first fluid line interconnecting the coolant exhaust port of an internal combustion engine and an exchange tank having a high pressure region and a low pressure region, a second fluid line interconnecting the high pressure region of the exchange tank and a heat exchanger, a third line interconnecting the heat exchanger and the inlet of a coolant pump attached to the coolant input port of the engine, and a fourth coolant line interconnecting the low pressure region of the exchange tank and the third line. The fluid contained within both the low and high pressure regions is of engine discharge temperature. By this arrangement the pressure maintained at the coolant inlet of the pump and the low pressure region of the exchange tank is equal. The low pressure region is preferably a tank situated within the high pressure region, thereby resulting with a tank being situated within a tank. Any gas or vapor in the fluid coming from the engine is disposed into the low pressure region by an aperture defined between the two regions.