Radiator with leak detecting and leak-isolating system

摘要

A radiator is provided including a tube core having opposite ends opening into and from which corresponding end tanks are supported. The tube core is divided into a plurality of discrete tube core sections and the end tanks each include a plurality of discrete secondary compartments into which the corresponding ends of the tube core sections open. The end tanks also include primary compartments therein into and from which heat transfer liquid is received and discharged and communication structure is provided communicating each of the secondary compartments with the corresponding primary compartment for liquid coolant flow there between. The engine cooling system of the instant invention utilizes a coolant radiator including a plurality of relatively isolated radiator sections and structure is provided operative (responsive to an elevated coolant temperature alarm or a low level engine coolant alarm) to isolate each radiator section from the other radiator sections, pressure test each radiator section, maintain a radiator section failing the pressure test isolated from the remainder of the cooling system while allowing the radiator sections passing the pressure test to again be opened to the remainder of the cooling system exclusive of the pressure test failing radiator section and then add liquid coolant to the system to replace coolant lost therefrom by the pressure test failing isolated radiator section.