Multi-core radiator with intermediate tank

A heat exchanger comprising:

• an inlet header tank;
• a first heat exchanger core having a first plurality of tubes coupled to the inlet header tank;
• an intermediate tank coupled to the first plurality of tubes;
• a second heat exchanger core having a second plurality of tubes coupled to the intermediate tank;
• and
• an outlet header tank coupled to the second plurality of tubes;
• wherein the intermediate tank includes protuberances configured to facilitate mixing of fluid within the intermediate tank as the fluid transfers from the first heat exchanger core to the second heat exchanger core;
• wherein the intermediate tank includes a front and a back relative to a direction of flow of the fluid, and the intermediate tank includes a top and a bottom relative to the direction of flow of the fluid;
• wherein, in a direction from the top to the bottom relative to the direction of fluid flow, the protuberances are oriented in alternating fashion with an uppermost of a group of the protuberances being located rearward of a second uppermost of the group of protuberances which is located forward of a third uppermost of the group of protuberances and so on.

A heat exchanger comprising:

• an inlet header tank configured to receive a fluid;
• an outlet header tank configured to output the fluid;
• and
• an intermediate tank between the inlet header tank and the outlet header tank, the intermediate tank having an interior region having a plurality of protuberances disposed therein, wherein the protuberances are configured to facilitate mixing of the fluid within the intermediate tank;
• wherein the intermediate tank includes a front surface, a back surface, and side surfaces relative to a direction of flow of the fluid, and the intermediate tank includes;
• wherein the protuberances extend from one of the side surfaces to the other in a direction transverse to the direction of the flow of the fluid.