BRAZED HEAT EXCHANGER

摘要

A heat exchanger from a stack of plate pairs having fins which are disposed between the plate pairs, and having ducts which vertically extend through the stack, for conveying in and/or conveying out a medium which flows through the plate pairs and which exchanges heat with another medium which flows through the fins, wherein the ducts are formed from openings in the plates and have moldings which extend around opening peripheries, and having a plate, having corresponding openings, which finishes off the stack, wherein a thermally decoupling element, which is inserted either in an integrated or a separate manner and which is incorporated into the vertical duct formation, is disposed between the finishing-off plate and the stack. Such a heat exchanger displays improved resilience to alternating temperature loadings.

主权项

1. A brazed heat exchanger comprising:
a stack of plate pairs; fins that are disposed between the plate pairs; ducts that vertically extend through the stack of plate pairs, the ducts are formed from openings in the plate pairs and moldings that are connected to one another and extend around opening peripheries of the openings, the ducts configured to convey in or convey out a first medium that flows though the plate pairs and that exchanges heat with a second medium that flows through the fins; a plate having apertures that correspond to the openings in the plate pairs, the plate finishes off the stack of plate pairs; and a thermally decoupling element is disposed between the plate and the stack of plate pairs, the thermally decoupling element is incorporated into a formation of at least one of the ducts and a contour of the thermally decoupling element approximately corresponds to a contour of the moldings.