초록 ▼

An internal combustion engine cooling system is disclosed which utilizes a coolant having a greater viscosity and film strength than water. Heat is transferred from the coolant as it flows through a radiator assembly. The coolant is directed through multiple heat transfer passes defined by core tube

An internal combustion engine cooling system is disclosed which utilizes a coolant having a greater viscosity and film strength than water. Heat is transferred from the coolant as it flows through a radiator assembly. The coolant is directed through multiple heat transfer passes defined by core tubes and headers of the radiator with the coolant moving through the core tubes of each pass at a flow velocity which insures a Reynolds number of no less than 5000. The flow velocity is substantially reduced in a header communicating the core tubes of successive heat transfer passes so that a region of substantially quiescent coolant is produced in the header. Air or gas in the coolant is collected and expelled from the header adjacent the quiescent coolant region.

대표청구항 ▼

A method of cooling an internal combustion engine comprising: a. circulating a coolant comprising a mixture of ethylene glycol and water through coolant passages in the engine by an engine driven pump; b. communicating coolant exiting from the engine to a radiator header chamber via a radiator inlet

A method of cooling an internal combustion engine comprising: a. circulating a coolant comprising a mixture of ethylene glycol and water through coolant passages in the engine by an engine driven pump; b. communicating coolant exiting from the engine to a radiator header chamber via a radiator inlet; c. passing the coolant through a plurality of first radiator coolant passages extending from said header chamber at velocities which establish a minimum Reynolds number of about 5000 at the torque peak speed of the engine; d. exhausting coolant from projecting ends of said first radiator coolant passages into a second header chamber; e. progressively reducing the coolant velocity as the coolant flows in said second header chamber; f. establishing a region of substantially quiescent coolant in said second header chamber; g. providing a coolant reservoir; h. communicating said coolant reservoir with said substantially quiescent region; i. detraining gas from the coolant in said substantially quiescent region and directing the detrained gas to said coolant reservoir; j. fractioning off coolant from said second header chamber via a plurality of second radiator coolant passages opening into said second header chamber; k. passing coolant through said second radiator coolant passages at velocities for establishing a minimum Reynolds number of about 5000 at the torque peak speed of the engine; and, l. exhausting coolant from said second radiator coolant passages into a third header chamber.