Combined aftercooler system with shared fans

An intake air cooling system for internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising:

• a liquid cooling subsystem including at least one liquid cooling loop having an aftercooler pump communicating with a radiator for unidirectional circulation of liquid coolant;
• an intake air subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler;
• and
• a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator;
• an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air aftercooler and the radiator;
• the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant;
• the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.

A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising:

• a liquid cooling subsystem including a first liquid cooling loop comprising a main pump communicating with a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop comprising an afterccoler pump communicating with an aftercooler radiator for unidirectional circulation of liquid coolant;
• a valve apparatus linking the first and second cooling loops and operative to control liquid coolant flow between the cooling loops;
• an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the second cooling loop, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler;
• a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator;
• an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator;
• the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant;
• and
• the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.

A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising:

• a liquid cooling subsystem including a first liquid cooling loop having a pump communicating with the engine and a main radiator and the engine for unidirectional circulation of liquid coolant, and a second liquid cooling loop including the pump, the engine, the main radiator, a supplemental low temperature radiator and a water cooling side of an air-to water aftercooler for unidirectional circulation of liquid coolant;
• an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler;
• a shared fan circulating air flow through cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator;
• an air distribution control operative to control the amount of circulated air flow directed from the shared fan to the cooling air sides of the air-to-air radiator, the aftercooler radiator, and the main radiator;
• the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant;
• and
• the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.

A cooling system for an internal combustion engine having a supercharger for increasing the density of intake air supplied to the engine, the cooling system comprising:

• a liquid cooling subsystem including at least one liquid cooling loop having a pump communicating with a radiator and the engine for unidirectional circulation of liquid coolant;
• an intake air cooling subsystem including an air-to-water aftercooler having an intake air side receiving intake air from the supercharger and a water side receiving liquid coolant from the liquid cooling subsystem, and an air-to-air aftercooler having an intake air side receiving intake air from the air-to-water aftercooler;
• a shared fan circulating air flow through cooling air sides of the air-to-air aftercooler and the radiator;
• a dynamic brake grid positioned in parallel with the cooling air sides of the air-to air aftercooler and the radiator to receive circulated air flow from the shared fan;
• the air-to-water aftercooler being operative to exchange heat between the intake air and liquid coolant;
• and
• the air-to-air aftercooler being operative to exchange heat between the intake air and circulated air.