Abstract: An engine cooling system comprises an integrated arrangement for pumping liquid coolant with a single pump through an engine and into heat exchange relation with various auxiliary heat loads in a combustion engine system. The coolant is further circulated by the pump from the engine and the various auxiliary heat loads to a single dissipation heat exchanger for dissipation of the absorbed heat energy. The cooling system is designed for maintenance of the engine and the auxiliary heat loads at individually selected operating temperature levels.

Abstract: A cooling system for a charge air combustion engine comprising series-mounted heat exchangers for two stage cooling of charge air supplied to the engine. A first stage charge air cooler heat exchanger is coupled into an engine-radiator liquid cooling system in series with the radiator and in parallel with the engine for passage of a portion of the liquid coolant at a first temperature level for first stage cooling of the charge air. A second charge air cooler heat exchanger is supplied with liquid coolant at a second, relatively lower temperature level for second stage cooling of the charge air.