Method and apparatus for cooling and deaerating internal combustion engine coolant

A method of deaerating and transferring heat from an internal combustion engine coolant comprising:

• a. directing coolant through a plurality of first radiator core tubes at a velocity which insures turbulent flow of the coolant in the tubes;
• b. transferring heat from the coolant flowing through said first core tubes;
• c. directing coolant from the first core tubes into a header chamber communicating said first core tubes with a plurality of second core tubes;
• d. reducing the velocity of coolant flowing in said header chamber from said first core tubes to said second core tubes to produce a region of substantially quiescent coolant in said header chamber;
• e. deaerating the coolant by collecting gas from the coolant at a location in the header chamber adjacent said quiescent region;
• f. venting gas from said location to a coolant reservoir;
• g. fractioning coolant from said header chamber through said second core tubes;
• h. flowing coolant through said second core tubes at a velocity which insures turbulent flow of the coolant through the second core tubes;
• i. transferring heat from the coolant flowing through said second core tubes.

A method of cooling an engine utilizing a liquid coolant comprised of a substantial volume of ethylene glycol and an approximately equal volume of water comprising:

• a. pumping the coolant through cooling passages in the engine;
• b. directing the coolant from the engine to a radiator;
• c. flowing the coolant through a header chamber in the radiator and into a first plurality of radiator core tubes;
• d. directing the coolant through the first plurality of core tubes at a velocity which corresponds to a Reynolds number of at least 5000 and transferring heat from the coolant as it passes through the core tubes;
• e. flowing the coolant discharged from the first plurality of core tubes through a second header chamber to a second plurality of core tubes;
• f. reducing the velocity of coolant flowing in said second header chamber from said first plurality of core tubes;
• g. establishing a region of minimum coolant flow velocity in said second header chamber;
• h. directing gas entrained in said coolant to said region;
• i. directing the coolant through the second plurality of core tubes from said second header chamber at a velocity corresponding to a Reynolds number of at least 5000 and transferring heat from the coolant as it flows through said second plurality of core tubes;
• j. providing a coolant reservoir;
• k. communicating said coolant reservoir with said region of minimum coolant flow;
• and,
• l. moving gas from said region to said reservoir.