Patent ID: 9291403
Filing Date: 2016-03-22
CPC Classification: B21C,F28D,F28F

Claim Text:
1. A heat exchanger comprising: a core case; a plurality of fin cases disposed in side-by-side relation to each other within the core case, each of the fin cases having an inlet and an outlet and a length extending from the inlet to the outlet, and the fin cases being arranged such that a first heat medium flows inside each of the fin cases and a second heat medium flows outside each of the fin cases for heat transfer between the first heat medium and the second heat medium; and a pair of upper and lower fins disposed within each of the fin cases, the upper and lower fins each having a cross-section of corrugated shape, each lower fin being disposed on a floor of the corresponding fin case, each upper fin being disposed on the corresponding lower fin; wherein each upper fin includes: wherein for each of the fin cases, the upper fin and the lower fin are oriented differently from each other such that the first centerlines intersect the second centerlines only at one location corresponding to the middle of the length of the fin case.